The
Research\ Studies section starts with an article on CES and chi, homeostasis
and the bioelectrical system. Following this are some articles by
Ray Smith, Ph.D. that are
recently completed summary studies or meta-analyses of different cogent CES
topic areas. Following these articles are broad range database literature
search results. I hope you enjoy these readings.
Charles McCusker, Ph.D. June 2006
Cranial
Electrotherapy Stimulation (CES), Chi,
Homeostasis, and
the
Bioelectrical System
Charles McCusker, Ph.D., Nicholas Mason, Ph.D.,
Eldon Taylor, Ph.D., and
Chi is you, Chi
is me (ancient proverb)
Optimal
mental and emotional functioning depends on the whole body. Chi or vital force
can be looked at in terms of its components as well as we might define them
according to the measures and means (science with its language) that we want to
do so. It depends especially on the brain. Our bodies have an elaborate system
of checks and balances. This elaborate system protects the brain from changes
in temperature, acceleration, and chemistry.
The current state of knowledge of
bioelectrical systems is limited, as it is in many areas of biology. At the
present time there is no uniform agreement on the mechanisms of action of CES
(Cranial Electrotherapy Stimulation). To proclaim a model can be problematic
because the paradigms are evolving very quickly these days.
Physiology
Physiology can
be regarded as an aspect of Chi or Vital Force and so accordingly, the evidence
of CES effectiveness in this domain is empirical. It is generally believed that
the effects are primarily mediated through a direct action on the brain at the
limbic system, the hypothalamus and/or reticular activating system. The primary
role of the reticular activating system is the regulation of electrocortical
activity. These are primitive brain stem structures. The functions of these
areas and their influence on our emotional states have been mapped using
electrical stimulation. Electrical stimulation of the periaqueductal gray
matter (PAG) has been shown to activate descending inhibitory pathways from the
medial brainstem to the dorsal horn of the spinal cord, in a manner similar to
endorphins. Cortical inhibition is a factor in the Melzack-Wall Gate Control
theory.
It is possible that CES may
produce its effects through parasympathetic autonomic nervous system dominance
via stimulation of the vagus nerve (CN X). Other cranial nerves such as the
trigeminal (CN V), facial (CN VII), and glossopharyngeal (CN IX), may also be
involved. Electrocortical activity produced by stimulation of the trigeminal
nerve has been implicated in the function of the limbic region of the midbrain
affecting emotions. Substance P and enkephalin have been found in the
trigeminal nucleus, and are postulated to be involved in limbic emotional brain
factors. The auditory-vertigo nerve (CN VIII) must also be effected by CES,
accounting for the dizziness one experiences when the current is too high.
Ideally, CES electrodes are placed on the ear lobes because that is a
convenient way to direct current through the brain stem structures.
Neurotransmitters
Brain chemistry
and how it works is another important aspect of chi or vital force, and
includes nurturance and operation. We call the chemicals which the brain use to
operate neurotransmitters. Each neurotransmitter has many functions.
Neurotransmitters also have specific effects. Research has especially
implicated serotonin in sleep, dopamine in euphoria, endorphins in pain
control, and norepinephrine in depression and manic-depressive mood swings.
Ordinarily these and other substances interact to maintain a balance for
optimal physical, intellectual, and emotional well being.
On the cellular level, as
well as intercellular and organic as well as interorganic systemic level we
call this state homeostasis. For example, in the brain the levels of the above
mentioned neurotransmitters have been demonstrated in published literature to
be at certain levels with individuals demonstrating normal ranges of
psychological and behavioral functioning in everyday living, whereas
individuals with certain types of diagnosed pathologies, most noted and
frequently measured in the literature being depression and anxiety related
disorders, as well as individuals suffering from serious types of chemical
dependencies.
Homeostasis
The notion here is that CES
usage improves the homeostasis state or within its domain provides for a state
of optimal homeostasis. Homeostasis is here defined as maintaining ....
functions within very narrowly defined ranges. The body's ability to preserve
the critical balance of its internal environment, regardless of external
changes, is essential for its survival. Our body (including and especially the
brain) reacts to changes in our environment. It constantly works to preserve
optimal functioning as a whole which is defined as homeostasis or a homeostatic
state. Its response and interaction with the environment is dynamic and
continual, operating at many levels some within conscious awareness and many
out of the range of our conscious perception. An example of a biological
process not in a continual awareness state would be the digestion of food.
Certainly we may respond to or be aware of eating, although after vigorous
physical labor we may see the grand spread of food before us and wolf it down,
not paying particular attention to savoring each tasty morsel, but eating
quickly because our stomach says feed me .
So we choose at some level
to be partially only partially conscious of the sensation of taste because the
biological requirement of providing energy to fuel the body (remember, survival
first ) blocks the more sensate focus of enjoying each tasty morsel of food.
This is adaptive and common sense that most of us understand on a very basic
level.
Continuing with this
example, much less conscious awareness would typically be available to the
digestion process, this process where food is broken into useful and usable
components is something we don't pay much attention to, it is relatively
automatic. Imagine how maladaptive it might be to be consciously contemplating
and focusing in the digestion process while driving down a road on the side of
a mountain while in the middle of a blizzard. Under these circumstances driving
off the side of a mountain while consciously focusing on digestion of our lunch
could be much less adaptive than keeping our eye (and corresponding muscle and
bodily movements) attending to staying on the road and successfully completing
the task of driving to our destination.
Events we might define as
stressful can alter our body systems to change its homeostasic range, which can
be adaptive for that moment. The startle response and body reaction to
manipulate our motor vehicle seeing a deer running out in front of us to stay
on the road and hopefully not injure the animal can change the bodily
homeostasis while in this situation. After this event the various systems react
to bring it back, that is alter the balance back to the regular driving the
vehicle mode.
Ecotropic
The term
Ecotropic refers to creating a balanced inner environment in a person, cures
rather than ameliorates, has multilevel and multidisciplinary integrity,
creates an environment for growth, deals with effects at the level of cause,
encompasses a wide spectrum, is dynamic in its innovation, is harmless with
only positive side effects , deals directly with the structure of the being,
ecological - holistic - does not harm, creates consciousness, aids in creating
an individual homeostasis state directly related to more authentic (real) being
- again multilevel brain chemistry, cognitive, psychodynamic - energy in a
body, wide spectrum, deals with effects at the level of cause, creates an
environment for growth, creates a balanced inner environment within a person.
Pressure and Stress
Efforts, challenges,
threats, or perceived threats or damage (physical and/or psychological) puts
pressure on our biosystem. We thrive on various pressures to experience, adapt,
survive, learn, and to live. Muscles can develop from putting pressure on them
and they will atrophy without that work. The same principle applies throughout
our physical system, and our brain as well (emotion and intellect). We depend
on pressure and grow by challenging ourselves. We will define healthy systemic
pressure as eustress. This is differentiated from what we commonly call stress.
In engineering terms the concept of stress say on a steel I beam in a high rise
building can lead to metal fatigue and the actual physical breaking of that
beam, which could potentially lead to the breaking and even collapse of that
building. We will follow the convention of using stress to mean bad stress.
Despite this, please regard stress as basically good. People can subject
themselves to so much exercise that they loose strength and endurance. They use
up their muscle tissue faster than they rebuild it. Then the healthy stress on
their muscles becomes destructive.
Chemically, we need
adrenaline and choline systems, adrenergic and cholinergic systems. We need our
bodies’ hormonal systems to use and build our muscles. The body's hormonal
systems also keep a homeostatic balance.
Psychological Distress
In psychological stress, the
body shifts into the fight or flight mode. Our body prepares for immediate
physical action. These systems too can suffer atrophy or exhaustion. We can
directly see and feel the body’s responses to some kinds of stress. We sweat
and flush from muscular effort; we get goose bumps and pale skin from cold. We
can even hear fatigue or shivering in a person’s voice.
Insensible Stress
Primarily hidden symptoms
accompany the shift from benign to pathological stress. We cannot so easily
see, hear, or feel sleeplessness, irritability, and inability to concentrate.
For most of us, only mechanical medically related instruments reveal blood
pressure gradually elevating to dangerous levels, and body chemistry going out
of balance. Sometimes the body cannot maintain the range of temperature
necessary for adequate functioning. Sometimes people persist in exercising,
working, or even playing to exhaustion. Either can lead to collapse and
eventual death. The body also suffers other types of collapse when other types
of stress press it beyond its limits.
When under stress, the brain
shifts its transmitter balance. This prepares the body to deal with the stress.
If the stressing agent remains present (stressful conditions on the job, in the
home, etc.) the shift may become permanent. The body and the personality of the
individual can suffer from such permanent shifts away from healthy homeostasis.
This brings patients to medical treatment facilities.
Stressors
Almost anything can cause
stress. Identification as a stressor depends as much on interpretation as on
substance. Being around strange people, loud noises, fast cars, and unfamiliar
situations all cause stress reactions. Until the middle of this century, life
accustomed us to small farms with a cow, maybe a goat, and three chickens.
People went to bed when the sun set, got up when it rose, and had acquaintances
whom they met every day of their lives.
Many people
still live rural lives today. Such people do not regard themselves as having
extended families and close communities. They regard us as having truncated
families and splattered communities. Now we live in today's metroplex society.
We drive on crowded highways, live in high rise buildings, and work with
multitudes of strangers. The media present murders, rapes, and other violence,
real and imagined, continuously. All these can and do cause the fight or flight
response. All these can cause excessive stress.
Stress control programs
have proliferated. Most work from assuming, Stress is bad. They teach stress
reduction. A few actually teach stress management. Some teach conscious skills,
often with cassette tapes or counselors. Sometimes these skills become habits.
The body responds gradually. Other programs more directly address the body. They
may include muscle balancers and toners, flotation tanks, massage, exercise,
and more physical interventions. In these therapies, the body responds directly
and the neurotransmitters of the brain respond gradually.
The most effective and
efficient programs address both the body and the brain simultaneously. This
establishes a balanced body-mind relationship. This approach has the added
benefit of potentiation.
Potentiation
Some synergy always exists
between the various factors in a situation. A small company made of similar
people has a much lower chance of success than a similar company made of people
who have different skills and experiences and preferences. Work done on the
body, work to alter the brain's neurochemistry, and work with cognitive skills
all abet each other.
Medications used separately
may have nearly harmless effects. Used together, these same medications will
have effects greater than the sum of their independent effects or different
than those taken individually. In a negative sense these are commonly referred
to as side effects and this term usually connotes as just stated, negative
effects. Alcohol has become notorious for this. Potentiation demands that we
use interventions with no harmful effects.
In the past, potentiation
has been regarded almost exclusively as a problem. By combining exclusively
benign interventions we can take advantage of it. We regard it as valuable. Our
lives are a continuous process of potentiation.
The Body-Brain Continuum
Chi is dynamic. Our emotions, intellects,
cognitive mind sets, perceptions, physiologies, chemistries, and much more all
overlap and interact to make who we are. Simple examples can illustrate this
complexity. A change in the environment can cause a hormonal shift. An argument
causes a stress response - fight or flight. Such shifts, if repeated and
inappropriate, can lead to a hormonal imbalance. Very few arguments could
justify punching or running away from your opponent. People have a lot of
arguments. They might have a lot of inappropriate responses to a lot of
different stressors. This leads to changes, from subtle to dramatic, in the
normal body functions.
Running could do
you some good. Better yet, avoid people with whom you might have unpleasant
arguments. Suppose you have excellent vision. You could easily avoid those
people. You would see them before they saw you. Have you ever been nearsighted?
Nearsighted people often squint to see farther. This tends to produce a
characteristic facial expression. More, the pectoral muscles in their chest
tend to contract in a reflexive effort to draw them nearer their point of
optimum focus. They can become round shouldered or even somewhat hunchbacked.
Disturbing the normal
functional relationship between the muscles, bones, tendons, ligaments, and
other structures of the body leads to changes in the biochemistry of the brain.
Painful or dysfunctional joints and muscles can turn the individual into a
wounded animal that needs gentle handling. This hyperirritability reflects
changes in the neurohormonal system of the brain.
The Role of CES
CES means to apply low
voltage, low amplitude, pulsed current transcranially. It pulses 100 times per
second (there are other frequencies as well, of course) on a twenty percent
duty cycle. The pulse wave is a modified square wave with no D.C. bias (meaning
that the pulse goes back and forth equally across the head, instead of pulsing
more left to right or more right to left). Small rechargeable batteries provide
the current. The device limits the stimulus to approximately 1.5 mA or less.
CES has proven an effective prescription for the treatment of many debilitating
pathologies. Improved cognitive function has also been demonstrated in terms of
improved cognitive skills. This can certainly be considered an aspect of chi or
vital force.
How CES Works.
Acetysalic acid, and its
pharmacological ancestor, salic acid, had proven benefits long before we had
any idea how they worked. We call it aspirin. CES has this in common with
aspirin. Unfortunately, CES has not been marketed on a wide spread basis such
as aspirin.
We have begun to
learn how CES produces its effects. Earlier studies on animals led researchers
to postulate that CES has its effects in the hypothalamic center of the brain,
and possibly in other primitive or emotion control centers within the brain.
CES now appears to have its effect by stimulating the brain generally. This
increases the brains manufacture and use of neurotransmitters, that leads to a
homeostasis of brain biochemistry, another aspect of chi.
Cortical Learning
Our bodies can learn outside
our awareness, and possibly independently of our brain. This has received
notice as visceral learning . Similarly, our brains can learn responses outside
our awareness. This would certainly apply to the amelioration of chi with CES
stimulation. Laboratory experiments have even conditioned individual neurons to
respond to receive molecules of cocaine. Obviously, networks of neurons can
develop more complex responses.
Only immediate and
detectible stimuli have a conditioning effect. Few people enter prolonged
depression suddenly. A person may slowly sink into depression. It usually
happens in slow small steps, often times undetectable consciously. Most efforts
to relieve depression will result in at least some immediate unpleasantness. So
they sink.
Suppose that using a
particular network of neurons has immediately unpleasant results. The brain may
soon learn not to use that network. Only a part of the network caused problems.
Even that could have been repaired. The brain does not know that. Hence we may
learn to forget an event or even whole skills associated with unpleasant
feelings. Intuitively, it seems that taking parts of the brain off line could
explain some pathology.
Why CES works
Cranial electrotherapy
stimulation (CES) stimulates, rather than directs, the general function of the
brain (effect on chi with an application of an external energy force). It
gently adds energy diffused to essentially all parts of the brain. As a result,
each part can more readily perform at optimum levels. Some parts of the brain
manufacture neurohormones. They can turn off or on more readily. This brings
the neurohormones to homeostasis. This brings the harmony that would exist if
we freed ourselves from distress or other damage.
Normally the amount of one
neurochemical in the brain influences manufacture of others. In turn, the
amount of one or more of the other neurotransmitters act as a check on the
production and use of the first neurotransmitter. This interaction
reestablishes the check and balance system which maintains homeostasis.
The task of CES
is to bring the brain to a healthy homeostatic condition. With this
accomplished, CES has no additional effect. In this regard CES is not habit
forming nor addictive.
How Long Does CES Need To Take Effect?
Most individuals respond
within several minutes of wearing a CES device. They may immediately report
relaxation, relief from pains, more energy, or an increased ability to
concentrate. Some notice positive changes over time. Others can wear a CES
device for days or weeks and not notice. This may stem from a lack of
awareness.
Obstacles to CES
Two common factors can cut the effects of CES.
The brain may lack what it needs to improve its function, and the brain may
have something blocking its function. These can mask or prevent or mask the
benefits of CES. A poor diet seems the most common cause. The brain's blood
supply may lack the chemical precursors for the neurotransmitter(s) it needs to
produce. CES stimulates brain centers that produce these chemical precursers to
produce some neurotransmitters. Neurons cannot manufacture the neurotransmitters
without the building blocks of those neurotransmitters present in the
bloodstream.
Conversely,
pathogens might override the new neurochemical response. A virus can divert
resources to the immune system. Using cocaine can deplete norepinephrine faster
than CES can stimulate its renewed production. Even having coffee or chocolate
(caffeine), or a few beers (alcohol), before bedtime can override natural sleep
induction by serotonin.
In both cases, clients must
improve living habits. This leads to the further benefits of potentiation.
Allow for these exceptions.
Common Applications of CES
Granted these exceptions,
CES proves effective in many applications. In the western culture depression
and anxiety seem the most common psychological problems of normal people in
normal life. In both cases, clinicians distinguish between reactive and obscure
pathology. Reactive pathology grows from an event. People feel anxiety when
loved ones might die, and depression when bereaved. We label such normal
feelings pathological when they persist past social norms and prevent normal
productive behavior. In the Eastern culture flow of an improvement in oneness
realization and improvement of chi and mastery could be emphasized. This would
of course include an improved ability to learn and do.
In the western world obscure
pathology has no apparent relationship to any specific event. It generally has
a longer history and takes longer to respond to therapy. CES can alleviate
reactive depression or anxiety in about a week with one forty-five minute
session per day. More severe depression and/or anxiety requires three to five
weeks or more of one or more forty-five minute daily sessions in its
amelioration. In the Eastern world effect would likely be seen as an
improvement in capacity or a strengthening of chi or vital force can be often
immediately experienced with CES but can certainly take four to six weeks or
longer of regular CES usage.
Other Therapies with CES
Many individuals receive CES
as part of additional treatment programs. They usually enter the treatment
program as a result of living in an environment that over stressed them. Their
coping mechanisms, both physical and psychological, have failed.
Typically,
these patients receive therapy, stress reduction and stress management
training. During the course of treatment for outpatients, or following
treatment for inpatients, they enter a non-therapeutic environment. This often
requires some initial support. CES can has proven useful for preventing a
recurrence of pathology.
People can learn more
quickly when their being (at different levels) is improved. People can heal and
learn much more easily when free from stress. The stress response makes any but
the most immediate and reflexive learning difficult. Learning relaxation
despite stress has proven particularly difficult. This difficulty also blocks
healing. CES can free us from the effects of the stress response. We can learn
anything, especially relaxation, better and faster.
The Role of Nutrition
Think of a typical car
battery. It won't start your engine. You test the cells. It has three dry
cells. The battery requires two factors to reestablish normal function. You
must add water and at least a trickle charge of electricity. Similarly, the
necessary nutritional elements as well as the trickle charge combine to
reestablish normal affectively related cognitive function.
We get amino acids from food. Amino acids
in the blood serve as precursors for neurohormones. That means the brain uses
these amino acids to build neurohormones. The brain can do this much more
efficiently when accompanied by CES treatment.
Cognitive Changes related to CES Intervention
Charles McCusker, Ph.D. 12/7/05
These studies were conducted by Charles
McCusker, Ph.D.& Delbert T. Goates, M.D. from 1992 to 1996 (unpublished
manuscript) and the component of the data shown here describes the positive
cognitive change results of CES for psychiatric outpatients. Our earliest formal
case histories yielded the following cognitive data.
The Wechsler Adult Intelligence
Scale-Revised (WAIS-R), with a sample size of 25:
Probability of IQ scores change due
only to test-retest practice effects
Verbal
Performance Full Scale practice effects
pre 101.6 107.2 104.12 p < .0001
post 110.0 122.12 116.52 p < .0001
difference +8.4 +14.92 +12.40 p < .0001
Verbal
Subtest scores
Informa- Digit Vocab- Arith-
Compre- Similari-
tion Span ulary metic hension
ties
pre 9.4 10.0 10.8 9.4 10.8 9.5
post 10.0 10.0 12.0 10.4 12.5
11.1
difference +.6 0 +1.2 +1.0 +1.7
+1.6
Performance
Subtest scores
Picture Picture Block Object
Digit
Completion Arrangement Design
Assembly Symbol
pre 10.6 10.4 10.3 9.6 8.7
post 12.1 12.0 12.1 13.0 10.5
difference +1.5 +1.6 +1.8 +3.4
+1.8
The WAIS-R scores displayed
statistically significant (p<.0001) changes between pre- and post- treatment
IQ, as well as positive changes in ten of eleven subtests on the same measure.
Quantum theory
predicts and experiments have verified that so-called empty space (the vacuum)
contains an enormous residual background energy known as zero-point energy (
ZPE). ZPE is derived from the fact that at temperatures of absolute zero (- 273o
Celsius) elementary particles continue to exhibit energetic behavior.
Theoretical advances of zero-point energy, nonlinear thermodynamics, and
connective physics open the practical purpose application of ZPE - in essence
tapping the zero-point, and thereby accessing a universe sized source of
energy.
Theoretical
contributions have been done by such pioneers as Nobel laureates Ilya
Prigogine, P. A. M. Dirac, John Wheeler, and Julian Schwinger. Prigogine, for
example, has shown that the second law of thermodynamics can be expanded to
include systems in which order evolves from randomness. This result has also
been obtained by Puthoff who utilized theories of ZPE to obtain an equivalent
result. The critical factor here is that linear systems tend toward increasing
entropy (i.e. the result of two inputs being the sum of their corresponding
outputs), whereas under certain conditions nonlinear systems have been shown to
evolve toward macroscopic order. Such nonlinear systems imply transient or
apparently uncontrolled systems, but the reality remains that clever designs
can and do provide means to skirt traditional understandings of thermodynamic
limitations and literally tap into the surrounding universe for unlimited
amounts of useful energy.
It is sometimes
assumed that the era of overunity energy research began with the pivotal work
of Pons and Fleischman in their discovery of what came to be referred to as
cold fusion. While the possibly premature nomenclature of “fusion” might not be
strictly applicable, Patterson has taken this work even further, achieving
significant results in both energy production and the transmutation of
elements. In many respects, while this work cannot be overestimated in its
profound importance to a better understanding of physics and chemistry, it
nevertheless has shown greater potential for the transmutation of elements than
it has for energy production as demonstrated in the work of Pappas at the
University of Athens and his “cold fusion” model of cellular level sodium to
potassium conversion.
This has
dramatic implications in beginning to understand that the application of CES
field energy to a mass would have some predictable and measurable effect.
According to the laws of quantum physics therefore, Chi can be predictively
increased.
(Special acknowledgments and thanks for the inspiration from
the authors to Elizabeth Lindsey; Mette Lindsley; N; Ravinder Taylor; Aram V.
Tanielian; and Marilyn Whimpey, B.S.)
References
Readers are advised to look below at the other articles and
literature searches to find a plethora of CES references.
A Summary Look at CES Studies of Addiction
By Ray B. Smith,
Ph.D.
Executive Summary. Fifteen studies were analyzed, in
which a total of 535 patients were treated for the substance abstinence
syndrome with cranial electrotherapy stimulation (CES). The studies were
combined statistically in order to get a more confident look at the
effectiveness of CES for treating this condition. While most of the studies
were of the classic double blind protocol, others used either the single blind
or open clinical trial. The result of the analysis showed that the overall
effectiveness of CES was 60% improvement. Elsewhere it has been noted (see
cognitive dysfunction studies) that the “permanent brain damage” that was said
to be a condition of long term substance abuse patients as late as the 1980s,
has now been seen to return to within normal functional limits following 3
weeks of daily CES treatment.
Introduction
Meta-analysis is a way of combining the results of many
separate studies to see the effectiveness of a treatment when different types
of patients are studied, under different study conditions, with different study
protocols, and who came to the various studies with differing symptoms
accompanying their drug withdrawal.
The goal of clinical studies is always to first test the
effectiveness of a potential treatment and secondly to discover which patients
the treatment may be most effective in treating. Meta-analysis has the effect
of allowing us to essentially study a larger number of patients than can
usually be assembled for a single study, and the larger the combined study
sample, the greater is the confidence that can be placed in the study outcome:
that the study findings are true and accurate. Also, the more diverse the study
group is in the combined sample, the more confident can we be in generalizing
the study outcome to larger groups of people outside the study. That is, it
increases the range of potential types of substance abuse patients that we can
predict will be effectively treated with CES.
In the table below is a summary of 15 studies that were
combined into the meta-analysis reported on here.
Studies of the Drug Abstinence Syndrome with CES
|
Study Design |
Zr
Scorea |
Presenting Group |
No. Subjects |
Measure Usedb |
Reference |
|
Double Blind |
.987 |
Poly
Substance Withdrawal |
18 |
Clinical Rating Scales |
1 |
|
Double Blind |
.397 |
Cocaine
Withdrawal |
17 |
Treatment Responses |
2 |
|
Double Blind |
1.029 |
Methadone
Withdrawal |
28 |
Treatment Records |
3 |
|
Double Blind |
.415 |
Alcohol
Withdrawal |
20 |
Self and Clinical Rating Scales |
4 |
|
Double Blind |
.403 |
Alcohol
Withdrawal |
20 |
Self and Clinical Rating Scales |
5 |
|
Double Blind |
.780 |
Poly
Substance Withdrawal |
49 |
Psychological Tests |
6 |
|
Double Blind |
.671 |
Poly
Substance Withdrawal |
60 |
Self Rating Scales |
7 |
|
Totals |
4.682 |
|
212 |
|
|
|
Average |
.669 |
|
|
|
|
|
Effect Sizec |
r
= .58 |
|
|
|
|
|
Single Blind |
.360 |
Alcohol
Withdrawal |
85 |
Psychological Tests |
8 |
|
Single Blind |
.772 |
Alcohol
Withdrawal |
47 |
Self Rating Scales |
9 |
|
Single Blind |
.725 |
Alcohol
Withdrawal |
47 |
Self Rating Scales |
10 |
|
Single Blind |
.737 |
Alcohol
Withdrawal |
24 |
Self Rating Scales |
11 |
|
Totals |
2.594 |
|
203 |
|
|
|
Average |
.649 |
|
|
|
|
|
Effect Size |
r
=.57 |
|
|
|
|
|
Open Clinical |
.678 |
Alcohol
Withdrawal |
53 |
Physiological Measure |
12 |
|
Open Clinical |
.775 |
Smoking
Cessation |
20 |
Reduced Smoking |
13 |
|
Open Clinical |
.549 |
Poly
Substance Withdrawal |
15 |
EEG |
14 |
|
Open Clinical |
1.065 |
Marijuana
Withdrawal |
32 |
Self Rating Scales, Physiological
Measure |
15 |
|
Totals |
3.067 |
|
120 |
|
|
|
Average |
.767 |
|
|
|
|
|
Effect Size |
r
=.65 |
|
|
|
|
|
SUMMARY,
ALL ADDICTION STUDIES REPORTED ABOVE |
|||||
|
Grand Total |
10.343 |
|
535 |
|
|
|
Average |
.690 |
|
|
|
|
|
Total Effect Size |
r
=.60 |
|
|
|
|
a Most studies utilized several (up to 7)
improvement measures, and since different percent improvement scores can not
legally be averaged, they are converted into Zr scores, averaged, and then
converted back to an overall percent improvement (effect size), with the
average improvement on all measures reported for each study.
b The Self Rating and Clinical Rating Scales used
in the studies all have published reliability and validity measures.
c Effect size, here, is a statistician’s basic
estimate of the overall percentage improvement by the patients as a result of
the treatment
Discussion
The variety of substances of abuse involved in the above
studies were quite varied, and included alcohol, heroin, cocaine, marijuana,
and nicotine, among possibly others hidden within the poly substance groups.
The measures used in evaluating the response to treatment were also greatly
varied. Some involved published clinician’s ratings scales, other utilized
published patient’s self rating scales, while others used psychological tests
of various kinds, while yet others combined these along with physiological
measures, such as EEG or EMG recordings. While in one study a clinician’s
rating of treatment response was among the lower measures obtained, in another
study the analysis of patient records, both during and following treatment, was
among the highest. Also among the strongest responders to the CES treatment
were methadone and marijuana patients.
Two of the studies
compared the treated and control patients on AMA rates in which the patients
left the program against medical advice, and on recidivism rate which measures
the number of times a patient returns for additional treatment. In both cases,
they found that both the AMA and recidivism rates were reduced by one-half or
more in the treated patients.2,7
Researchers earlier received a strong impetus to study CES
in substance abuse patients when in the 1970s it was found that the abstinence
syndrome, including such features as depression, anxiety and insomnia, was seen
to come under control very quickly with CES. Serendipitously it was also
discovered that what had up until the 1980s been termed “permanent brain
damage” in these patients responded to three weeks of CES treatment by bringing
these patients back within their normal functioning range. (See the analysis of
cognitive function studies presented elsewhere.)
A word
about the study types. In the open clinical study, the patients know
they are being actively treated for the abstinence syndrome, the clinicians
know who is being treated, and the statistician who summarizes the study data
also knows, since there is only one group of patient records to analyze.
In the single blind study, the patients do not know
which are getting treated and which are getting sham treatment, but the
clinician providing the treatment knows which are the treated patients. In the
single blind study, the clinician doing the post study evaluation of the
patients is often blinded to treatment conditions when he completes his
evaluation. The statistician is usually blinded also, so that he is given two
sets of scores to compare, and doesn’t know which group received the treatment.
This study design was used earlier on before treatment blinding devices came on
stream. In such studies, the treatment was administered sub sensation
threshold, in which the clinician turned up the current intensity until the
patient just felt it, then turned it back down until the patient said he could
no longer feel the stimulation. At that point, the clinician either left the
current at that level or turned the unit off (down to, but not including the
final click). Because both the patients and the statistician are both blind to
the study conditions, some authors have unwittingly published this design as a
double blind experiment. But that term is generally reserved for the true
double blind experimental design as described next.
The double blind study, the gold standard of science,
is usually confined to studies in which neither the patient nor the clinician
knows who is being studied. Those designs became available when a double
blinding box could be inserted between the patient and the CES device. The
double blinding box often had three, four or more settings in addition to a “0”
setting in which current flowed freely between the CES unit and the patient.
Among the other settings available, some passed current to the patient and some
blocked it entirely. The clinician would begin the double blind treatment
session by setting all double blinding boxes to the “0” position, would connect
the patient to the CES electrodes, turn the current up slowly until the patient
signaled he could just feel it, then reduce the stimulus level until the
patient signaled that he could no longer feel it. At that point, the clinician
set the double blinding box to one of the other settings available and left the
patient on the device for 30 minutes to an hour, not knowing who was receiving
actual treatment.
Interestingly, in a good double blind experimental design,
such as was the case in the majority of those reported in the table above, the
persons who were responsible for measuring or rating patient improvement were
also blind as to who was treated, as was the statistician who was given
anonymous groups of data to analyze. Note that, in effect, that makes such
studies quadruple blind, but that term is not used in science.
In the crossover design, half the patients get
treated the first week or two of the study, while the other half receive sham
treatment. In the second half of the study, the formerly treated patients now
receive sham treatment while the formerly sham treated patients receive
treatment. If the crossover does not involve a sham treatment condition, then
the crossover study is treated as an open clinical trial where all patients and
staff know who is being treated at each cross of the study. That design is
often referred to as a study with “wait in line” controls, in that the patients
waiting to begin treatment are tested before and at the end of the waiting
period before going into treatment. That is thought to control for
environmental factors such as unusual stressors on the 10 O’clock news, any
local dramatic weather changes, and so forth.
Interestingly we learned early on in CES work to stay clear
of the cross over design in CES studies, after we discovered that the improvement
begun by a week or so of CES treatment can often continue after treatment is
stopped. That is, the patients continue to get better as time goes on following
treatment. One can imagine what that does to the statistical analysis when at
the end of the study both groups have improved significantly, but the patients
treated first are no longer behaving as good controls should, but are getting
even better than the final treatment group is showing. Many otherwise good
studies were lost early on due to that effect, and one can see in the table
above that the crossover design was wisely avoided in all of the studies
reported.
Safety
It is interesting to note that not one problem from negative
side effects has ever been reported in any published CES study. Patients
undergoing withdrawal for substance abuse are sometimes prone to experience
withdrawal seizures. None of the patients undergoing withdrawal in which CES is
used has ever been reported to have had a seizure.
One interesting clinical detail we learned early on is that
patients who have not been sleeping well when they enter a study – many of
them, by definition – sometimes make up for lost REM sleep during CES treatment
and have the most vivid, most colorful dreams they have ever had. We learned to
warn study participants of this in advance, since some earlier patients
associated this with incipient schizophrenia or some other serious mental
condition. Once alerted to the possibility they have always looked forward to
the effect with real anticipation.
References
1. Bianco, F. (1994) The efficacy of cranial
electrotherapy stimulation (CES) for the relief of anxiety and depression among
polysubstance abusers in chemical dependency treatment. Ph.D. dissertation,
The University of Tulsa.
2. Brovar, A. (1984) Cocaine detoxification with cranial
electrotherapy stimulation (CES): a preliminary appraisal. International
Electromedicine Institute Newsletter. 1(4):1-4.
3. Gomez, E. and A.R. Mikhail (1978) Treatment of methadone
withdrawal with cerebral electrotherapy (electrosleep) British Journal of
Psychiatry. 134:111-113.
4. Krupitsky, E.M., A.M. Burakov, G.F. Karandashova, J.S.
Katsnelson, V.P. Lebedev, A.J. Grinenko, and J.S. Borodkin (1991) The
administration of transcranial electric treatment for affective disturbances
therapy in alcoholic patients. Drug and Alcohol Dependence. 17:1-6.
5. McKenzie, R.E., R.M. Costello, and D.C. Buck (1976)
Electrosleep (electrical transcranial stimulation ) in the treatment of
anxiety, depression and sleep disturbance in chronic alcoholics. Journal of
Altered States of Consciousness. 2(2):185-196.
6. Schmitt, R., T. Capo, H. Frazier, and D. Boren (1984)
Cranial electrotherapy stimulation treatment of cognitive brain dysfunction in
chemical dependence. Journal of Clinical Psychiatry. 45:60-063.
7. Schmitt, R., T. Capo, and E. Boyd (1986) Cranial
electrotherapy stimulation as a treatment for anxiety in chemically dependent
persons. Alcoholism: Clinical and Experimental Research. 10(2):158-160.
8. Smith, R.B. (1982) Confirming evidence of an effective
treatment for brain dysfunction in alcoholic patients.Journal of Nervous and
Mental Disease. 170:275-278.
9. Smith, R.B. and L. O’Neill (1975) Electrosleep in the
management of alcoholism. Biological Psychiatry. 10:765-680.
10. Smith, R.B., and L. O”Neill (1975) Electrosleep in the
management of alcoholism. Biological Psychiatry.10(6):675-680.
11. Weingarten, E. (1981) The effect of cerebral
electrostimulation on the frontalis electromyogram. Biological Psychiatry.
16(1):61-63.
12. Smith, R.B., A.E. Burgess, V.J. Guinee, and L.C.
Reifsnider (1979 A curvilinear relationship between alcohol withdrawal tremor
and personality. Journal of Clinical Psychology. 35(1):199-203.
13. Boertien, A.H. (1967) The electrosleep apparatus as a
device in an antismoking therapy. In: Wageneder, F.M. and St. Schuy (Eds) Electrotherapeutic
Sleep and Electroanaesthesia.
14. Braverman, E., R.B. Smith, R. Smayda and K. Blum (1990)
Modification of P300 amplitude and other electrophysiological parameters of
drug abuse by cranial electrical stimulation. Current Therapeutic Research.48(4):586-596.
15. Overcash, S.J.
and A. Siebenthall (1989) The effects of cranial electrotherapy stimulation and
multisensory cognitive therapy on the personality and anxiety levels of
substance abuse patients. American Journal of Electromedicine.
6(2):1050-111.
A Summary Look at
CES Studies Of Anxiety
By Ray B. Smith,
Ph.D.
Executive Summary. Thirty-eight studies were
analyzed, in which a total of 1,495 patients were treated with cranial
electrotherapy stimulation (CES) for anxiety. The patients had presented with
various clinical syndromes, of which anxiety played a major part. The treatment
outcome anxiety scores were combined statistically in order to get a more
confident look at the effectiveness of CES for treating this condition. While
the majority of the studies were of the classic double blind protocol, others
used either the single blind, the cross over design or were open clinical
trials. The result of the analysis showed that the overall effectiveness of CES
was an impressive 58% improvement. The results indicated that various types of
anxiety, which accompany a wide range of clinical syndromes can be expected to
respond, sometimes dramatically to CES treatment.
Introduction
Meta-analysis is a way of combining the results of many
separate studies to see the effectiveness of a treatment when different types
of patients are studied, under different study conditions, with different study
protocols, and who came to the various studies with differing symptoms
accompanying their sleep problem.
The goal of clinical studies is always to first test the
effectiveness of a potential treatment and secondly to discover which patients
the treatment may be most effective in treating. Meta-analysis has the effect
of allowing one to essentially study a larger number of patients than can
usually be assembled for a single study, and the larger the combined study
sample, the greater is the confidence that can be placed in the study outcome:
that the study findings are true and accurate. Also, the more diverse the study
group is in the combined sample, the more confident one can be in generalizing
the study outcome to larger groups of patients outside the study. That is, it
increases the range of potential types of anxiety patients that one can predict
will be effectively treated with CES.
In the table below is a summary of 38 studies that were
combined into the meta-analysis reported on here.
CES Anxiety Studies Completed Over the Past 36 Years
|
Study
Design |
Zr
Scorea |
Presenting Group |
No.
Subjects |
Measure
Usedb |
Reference |
|
Double Blind |
.950 |
Substance
Abuse |
47 |
Clinical Rating Scales |
1 |
|
Double Blind |
.412 |
Outpatient
Psychiatric Abuse |
32 |
Self Rating Scale |
2 |
|
Double Blind |
.365 |
Substance
Abuse |
28 |
Self Rating Scale |
3 |
|
Double Blind |
.549 |
Outpatient
Psychiatric |
28 |
Clinical Rating Scale |
4 |
|
Double Blind |
.720 |
Outpatient
Pain Patients |
20 |
Physiological Measures |
5 |
|
Double Blind |
.604 |
Outpatient
Pain Patients |
30 |
Physiological Measures |
6 |
|
Double Blind |
.563 |
Psychiatric
Prisoners |
28 |
Clinical Rating Scale |
7 |
|
Double Blind |
.625 |
Substance
Abuse |
20 |
Self Rating Scales |
8 |
|
Double Blind |
1.099 |
Psychiatric
Inpatients |
11 |
Self Rating Scale |
9 |
|
Double Blind |
.233 |
Psychiatric
Inpatients |
60 |
Self Rating Scales |
10 |
|
Double Blind |
.693 |
Substance Abuse |
21 |
Self Rating Scale |
11 |
|
Double Blind |
.775 |
Psychiatric
Inpatients |
24 |
Self Rating Scale |
12 |
|
Double Blind |
.618 |
Psychiatric
Inpatients |
20 |
Self Rating Scale |
13 |
|
Double Blind |
.405 |
Psychiatric
Outpatients |
80 |
Clinical Rating Scales |
14 |
|
Double Blind |
.365 |
Substance Abuse |
60 |
Self Rating Scales |
15 |
|
Double Blind |
.693 |
Closed
Head Injured |
21 |
Self Rating Scale |
16 |
|
Double Blind |
.549 |
Normal
Volunteers |
30 |
Physiological Measures |
17 |
|
Double Blind |
.567 |
Prison
Sex Offenders |
105 |
Self Rating Scale, Physiological
Measures |
18 |
|
Double Blind |
.618 |
Substance Abuse |
24 |
Self Rating Scale |
19 |
|
Double Blind |
.633 |
Dental
Patients |
33 |
Self and Clinician Rating Scales |
20 |
|
Double Blind |
.811 |
Psychiatric
Outpatients |
22 |
Clinical Rating |
21
|
|
Totals |
12.847 |
|
744 |
|
|
|
Average |
.612 |
|
|
|
|
|
Effect Sizec |
r
= .55 |
|
|
|
|
|
Single Blind |
.497 |
Substance Abuse |
72 |
Clinical Rating Scales |
22 |
|
Totals |
.497 |
|
72 |
|
|
|
Average |
.497 |
|
|
|
|
|
Effect Size |
r
=.46 |
|
|
|
|
|
Crossover |
.321 |
Psychiatric
Inpatients |
23 |
Clinician’s Rating |
23 |
|
Crossover |
.080 |
Insomnia,
Anxiety |
28 |
Clinician’s Rating |
24 |
|
Crossover |
.365 |
Outpatient
Psychiatry |
17 |
Clinician’s Rating |
25 |
|
Crossover |
1.757 |
Outpatient
Psychiatry |
10 |
Self, Clinicin’s Ratings |
26 |
|
Totals |
2.523 |
|
78 |
|
|
|
Average |
.631 |
|
|
|
|
|
Effect Size |
r
=.56 |
|
|
|
|
|
Open Clinical |
.563 |
Psychiatric
Outpatients |
25 |
Clinician’s Rating |
27 |
|
Open Clinical |
.523 |
Psychiatric
Outpatients |
12 |
Clinician’s Rating, Physiological
Measure |
28 |
|
Open Clinical |
.973 |
Psychiatric
Inpatients |
20 |
Clinician’s Rating |
29 |
|
Open Clinical |
.621 |
Graduate
Students |
54 |
Self Rating Scales |
30 |
|
Open Clinical |
.640 |
Psychiatric
Outpatients |
182 |
Physiological Measures |
31 |
|
Open Clinical |
1.344 |
Substance
Abuse |
32 |
Self Rating Scale, Physiological
Measure |
32 |
|
Open Clinical |
.973 |
Substance
Abuse |
186 |
Clinician’s Rating |
33 |
|
Open Clinical |
.510 |
Psychiatric
Outpatients |
9 |
Clinician’s Rating |
34 |
|
Open Clinical |
604 |
Psychiatric
Outpatients |
12 |
Clinician’s Rating |
35 |
|
Open Clinical |
1.039 |
Psychiatric
Outpatients |
23 |
Self Rating Scales |
36 |
|
Open Clinical |
.436 |
Phobic
Outpatients |
31 |
Self Rating Scale |
37 |
|
Open Clinical |
1.099 |
Prison,
Sex Offenders |
15 |
Self Rating Scale |
38 |
|
Totals |
9.325 |
|
601 |
|
|
|
Average |
.777 |
|
|
|
|
|
Effect Size |
r
=.65 |
|
|
|
|
|
SUMMARY,
ALL ANXIETY STUDIES REPORTED ABOVE |
|||||
|
Grand Total |
25.192 |
|
1,495 |
|
|
|
Average |
.663 |
|
|
|
|
|
Total Effect Size |
r
=.58 |
|
|
|
|
a r correlation scores, representing percent
improvement, are obtained mathematically from the study outcomes presented by
the authors. Scores such as percent change scores, statistical probability
scores, F scores, t scores, and the like, are changed to r
correlation scores and then into Zr scores. That is because percent improvement
scores can not legally be averaged. The Zr scores are then averaged and
converted back to percent improvement (effect size.)
b Most of the rating scales, both by the patients
and the clinicians were of published reliability and validity. In many of the
studies, more than one measure of anxiety was used. In those cases, the average
of the results was calculated and reported as the overall result of the study.
c Effect size, here, is a statistician’s basic
estimate of the overall percentage improvement by the patients as a result of
the treatment
Discussion
In many of the studies, anxiety was but one symptom within a
larger presenting syndrome. For example in many of the patients, fibromyalgia
was the presenting symptom, while in another large group of studies the
substance abuse (drug abstinence) syndrome was the presenting diagnosis. The
presenting syndrome or type of patient is given in column three of the table.
In all of the studies, however, anxiety was a major diagnosis within the
presenting syndrome or group.
A word
about the study types. In the open clinical study, the patients know
they are being actively treated for their anxiety, the clinicians know who is
being treated, and the statistician who summarizes the study data also knows,
since there is only one group of patients.
In the single blind study, the patients do not know
which are getting treated and which are getting sham treatment, but the
clinician providing the treatment knows which are the treated patients. In the
single blind study, the clinician doing the post study evaluation of the
patients is often blinded to treatment conditions when he completes his
evaluation. The statistician is usually blinded also, so that he is given two
sets of scores to compare, and doesn’t know which group received the treatment.
This study design was used earlier on before treatment blinding devices came on
stream. In such studies, the treatment was administered sub sensation
threshold, in which the clinician turned up the current intensity until the
patient just felt it, then turned it back down until the patient said he could
no longer feel the stimulation. At that point, the clinician either left the
current at that level or turned the unit off (down to, but not including the
final click). Because both the patients and the statistician are both blind to
the study conditions, some authors have unwittingly published this design as a
double blind experiment. But that term is generally reserved for the true
double blind experimental design as described next.
The double blind study, the gold standard of science,
is usually confined to studies in which neither the patient or the clinician
knows who is being studied. Those designs became available when a double
blinding box could be inserted between the patient and the CES device. The
double blinding box often had three, four or more settings in addition to a “0”
setting in which current flowed freely between the CES unit and the patient.
Among the other settings available, some passed current to the patient and some
blocked it entirely. The clinician would begin the double blind treatment
session by setting all double blinding boxes to the “0” position, would connect
the patient to the CES electrodes, turn the current up slowly until the patient
signaled he could just feel it, then reduce the stimulus level until the
patient signaled that he could no longer feel it. At that point, the clinician
set the double blinding box to one of the other settings available and left the
patient on the device for 30 minutes to an hour, not knowing who was getting
active treatment..
Interestingly, in a good double blind experimental design,
such as was the case in the majority of those reported in the table, the
persons who were responsible for measuring or rating patient improvement were
also blind as to who was treated, as was the statistician who was given
anonymous groups of data to analyze. Note that, in effect, that makes such
studies quadruple blind, but that term is not used in science.
In the crossover design, half the patients get
treated the first week or two of the study, while the other half receive sham
treatment. In the second half of the study, the formerly treated patients now
receive sham treatment while the formerly sham treated patients now receive
treatment. If the crossover does not involve a sham treatment condition, then
the crossover study is treated as an open clinical trial where all patients and
staff know who is being treated at each cross of the study. That design is
often referred to as a study with “wait in line” controls, in that the patients
waiting to begin treatment are tested before and at the end of the waiting
period before going into treatment. That is thought to control for environmental
factors such as unusual stressors on the 10 O’clock news, any local dramatic
weather changes, and so forth.
Interestingly we learned early on in CES work to stay clear
of the cross over design in CES studies, after we discovered that the
improvement begun by a week or so of CES treatment often continues after
treatment is stopped. That is, the patients continue to get better as time goes
on following treatment. One can imagine what that does to the statistical
analysis when at the end of the study, both groups have improved significantly,
but the patients treated first are no longer behaving as good controls should,
but are getting even better than the final treatment group is showing. Many
otherwise good studies were lost early on due to that effect. It is
interesting, for example that the study that obtained by far the worst apparent
improvement among the 38 studies was a crossover study.
Safety
It is interesting to note that not one problem from negative
side effects has ever been found in any published CES anxiety study. None of
the patients has threatened or attempted suicide during or following treatment.
None has complained of grogginess the next day. None has complained of
headaches or a foggy feeling following treatment. When asked, CES patients have
reported instead feeling more rested, more alert, and less tired following
treatment.
One interesting clinical detail we learned early on is that
patients who have not been sleeping well when they enter a study sometimes make
up for lost REM sleep during CES treatment and have the most vivid, most
colorful dreams they have ever had. We learned to warn study participants of
this in advance, since some earlier patients associated this with incipient
schizophrenia or some other serious mental condition. Once alerted to the
possibility they have always looked forward to the effect with real
anticipation.
References
1. Bianco, F. Jr. (1994) The efficacy of cranial
electrotherapy stimulation (CES) for the relief of anxiety and depression among
polysubstance abusers in chemical dependency treatment. Ph.D. Dissertation,
The
2. Gibson, T.H. and D.E. O’Hair (1987) Cranial application
of low level transcranial electrotherapy vs. relaxation instruction in anxious
patients. American Journal of Electromedicine. 4(1):18-21.
3. Gomez, E. and A.R. Mikhail (1978) Treatment of methadone
withdrawal with cerebral electrotherapy (electrosleep). British Journal of
Psychiatry. 134:111-113.
4. Hearst, E.D., C.R. Cloninger, E.L. Crews, and R.J.
Cadoret (1974) Electrosleep therapy: a double-blind trial.Archives of
General Psychiatry. 30(4):463-466.
5. Heffernan, M. (1995) The effect of a single cranial
electrotherapy stimulation on multiple stress measures.The Townsend Letter
for Doctors and Patients. 147:60-64
6. Heffernan, M. (1996) comparative effects of microcurrent
stimulation on EEG spectrum and correlation dimension. Integrative
Physiological and Behavioral Science. 31(3):202-209.
7. Jamelka, R. (1975) Cerebral electrotherapy and anxiety
reduction. Master’s Thesis,
8. Krupitsky, E.M., A.M. Burakov, G.F. Karandashova, J.
Katsnelson, V.P. Lebedev, A.J. Grinenko, and J.S. Borodkin (1991). The
administration of transcranial electric treatment for affective disturbances
therapy in alcoholic patients. Drug and Alcohol Dependence. 27:1-6.
9. Levitt, E.A., N.M. James, and P. Flavell (1975) A
clinical trial of electrosleep therapy with a psychiatric inpatient sample. Australian
and
10. Passini, F.G., C.G. Watson, and J. Herder (1976) The
effects of cerebral electric therapy (electrosleep) on anxiety, depression, and
hostility in psychiatric patients. Journal of Nervous and Mental Disease. 163(4):263-266.
11. Philip, P. J. Demotes-Mainard, M. Bourgeois, and J.D.
Vincent (1991) Efficiency of transcranial electrostimulation on anxiety and
insomnia symptoms during a washout period in depressed patients; a double-blind
study. Biological Psychiatry 29:451-456.
12. Ryan, J.J. and G.T. Souheaver (1976) Effects of
transcerebral electrotherapy (electrosleep) on state anxiety according to
suggestibility levels. Biological Psychiatry 11(2):233-237.
13. Ryan, J.J. and G.T. Souheaver (1977) The role of sleep
in electrosleep therapy for anxiety. Diseases of the Nervous System.
387):515-517.
14. Sausa, A.D. and P.C. Choudbury (1975) A psychometric
evaluation of electrosleep. Indian Journal of Psychiatry. 17:133-127.
15. Schmitt, R., T. Capo, and E. Boyd (1986) Cranial
electrotherapy stimulation as a treatment for anxiety in chemically dependent
persons. Alcoholism: Clinical and Experimental Research. 10(2):158-160.
16. Smith, R.B., A. Tiberi, and J. Marshall (1994). The use
of cranial electrotherapy stimulation in the treatment of closed-head-injured patients.
Brain Injury. 8(4):357-361.
17.
18. Voris, M.D. (1995) An investigation of the effectiveness
of cranial electrotherapy stimulation in the treatment of anxiety disorders
among outpatient psychiatric patients, impulse control parolees and pedophiles.Dallas:Delos
Mind/Body Institute, pp 1-19.
19. Weingarten, E. (1981) The effect of cerebral
electrostimulation on the frontalis electromyogram. Biological Psychiatry
16(1):61-63.
20. Winick, R.L. (1999) Cranial electrotherapy stimulation
(CES): A safe and effective low cost means of anxiety control in a dental
practice. General Dentistry. 47(1):50-55.
21.Rosenthal, S.H. (1972) Electrosleep; a double-blind
clinical study. Biological Psychiatry 4(2):179-185.
22. Smith, R.B. and L. O’Neill (1975) Electrosleep in the
management of alcoholism. Biological Psychiatry.10(6):675-680
23. Feighner, J.P., S.L. Brown, and J.E. Olivier (1973)
Electrosleep therapy: A controlled double-blind study.Journal of Nervous and
Mental Disease. 157(2):121-128.
24. Frankel, B.L., R. Buchbinder, and F., Snyder (1973)
Ineffectiveness of electrosleep in chronic primary insomnia. Archives of
General Psychiatry. 29:563-568.
25. Moore, J.A., C.S. Mellor, K.F. Standage, and H.A. Strong
(1975) A double-blind study of electrosleep for anxiety and insomnia. Biological
Psychiatry. 10(1):59-63.
26. Von Richthofen, C.L. and C.S. Mellor (1980) Electrosleep
therapy: a controlled study of its effects in anxiety neurosis. Canadian
Journal of Psychiatry. 25(3):213-229.
27. Flemenbaum, A. (1974) Cerebral electrotherapy
(e1ectrosleep): an open clinical study with a six month follow-up. Psychosomatics.
15(1):20-24.
28. McKenzie, R.E., S..H. Rosenthal, and J.S. Driessner,
(1976) Some psycho-physiologic effects of electrical transcranial stimulation
(electrosleep). In Wulfsohn, N.L. and Sances, A. (Eds) The Nervous
System and Electric Currents. (
29. Magora, F., A. Beller, M.I. Assael, and A. Askeknazi
(1967) Some aspects of electrical sleep and its therapeutic value, in
Wageneder, F.M. and St. Schuy (Eds.) Electrotherapeutic Sleep and
Electroanaesthesia.(
30. Matteson, M.T., and J.M. Ivancevich (1986) An
exploratory investigation of CES as an employee stress management technique.
Journal of Health and Human Resource Administration. 9:93-109.
31.Overcash, S.J. (1999) A retrospective study to determine
the efficacy of cranial electrotherapy stimulation (CES) on patients suffering
from anxiety disorders. American Journal of Electromedicine 16(1):49-51.
32. Overcash, S.J. and A. Siebenthall (1989) The effects of
cranial electrotherapy stimulation and multisensory cognitive therapy on the
personality and anxiety levels of substance abuse patients. American Journal
of Electromedicine. 6(2):105-111.
33. Patterson, M.A., J. Firth, and R. Gardiner (1984)
Treatment of drug, alcohol and nicotine addiction by neuroelectric therapy:
analysis of results over 7 years. Journal of Bioelectricity.
3(1&2):193-221.
34. Rosenthal, S.H., and N.L. Wulfson (1970) Electrosleep: A
clinical trial. American Journal of Psychiatry127(4):175-176.
35. Rosenthal, S.H., and N.L. Wulfson (1970) Electrosleep: A
clinical trial. American Journal of Psychiatry127(4):175-176.
36. Smith, R.B. (1999) Cranial electrotherapy stimulation in
the treatment of stress related cognitive dysfunction, with an eighteen month
follow up. Journal of Cognitive Rehabilitation 17(6):14-18.
37. Smith, R.B. and F.N. Shiromoto (1992) The use of cranial
electrotherapy stimulation to block fear perception in phobic patients. Current
Therapeutic Research. 51(2):249-253.
38. Voris, M.S. and S. Good (1996) Treating sexual offenders
using cranial electrotherapy stimulation. Medical Scope Monthly.
3(11):14-18.
A Summary Look at
CES Studies of Cognitive Function
By Ray B. Smith, Ph.
D.
Executive Summary. Thirteen studies, in which a total
of 648 patients with various types of cognitive dysfunction were treated with
cranial electrotherapy stimulation (CES), were combined statistically in order
to get a more confident look at the effectiveness of CES for treating this
condition. While many of the studies were of the classic double blind protocol,
others used either the single blind or open clinical trial. The result of the
analysis showed that the overall effectiveness of CES was 44% improvement. When
the 7 studies of patients with substance abuse and the 3 studies of
fibromyalgia patients were analyzed separately it was found that the substance
abuse patients averaged a 60% improvement, while the fibromyalgia patients
gained a modest but significant 17%. The results indicate that a different
etiology is most likely driving the cognitive dysfunction in the two. Perhaps
in one group a more basic physiological change was at work due to the history of
substance abuse, while the fibromyalgia patients may have simply been driven to
cognitive distraction by their intractable pain. Elsewhere it was noted that
the “permanent brain damage” that was said to be a condition of long term
substance abuse patients as late as the 1980s, has now been seen to return to
within normal functional limits following 3 weeks of daily CES treatment.
Introduction
Meta-analysis is a way of combining the results of many
separate studies to see the effectiveness of a treatment when different types
of patients are studied, under different study conditions, with different study
protocols, and who came to the various studies with differing symptoms
accompanying their cognition problem.
The goal of clinical studies is always to first test the
effectiveness of a potential treatment and secondly to discover which patients
the treatment may be most effective in treating. Meta-analysis has the effect
of allowing us to essentially study a larger number of patients than can
usually be assembled for a single study, and the larger the combined study
sample, the greater is the confidence that can be placed in the study outcome:
that the study findings are true and accurate. Also, the more diverse the study
group is in the combined sample, the more confident can we be in generalizing
the study outcome to larger groups of people outside the study. That is, it
increases the range of potential types of cognitive dysfunction patients that
we can predict will be effectively treated with CES.
In the table below is a summary of 13 studies that were
combined into the meta-analysis reported on here.
Studies of Cognitive Function Completed Over the Past
31 Years
|
Study Design |
Zr
Scorea |
Presenting Group |
No. Subjects |
Measure Usedb |
Reference |
|
Double Blind |
.1.020 |
Substance Abuse |
60 |
Profile Of Mood States |
1 |
|
Double Blind |
.829 |
Substance
Abuse |
60 |
Psychological Tests |
2 |
|
Double Blind |
.151 |
Fibromyalgia |
60 |
Profile of Mood States |
3 |
|
Totals |
2.000 |
|
180 |
|
|
|
Average |
.667 |
|
|
|
|
|
Effect Sizec |
r
= .58 |
|
|
|
|
|
Single Blind |
.604 |
Substance Abuse |
72 |
Profile of Mood States |
4 |
|
Single Blind |
1.293 |
Substance
Abuse |
227 |
Psychological Tests |
5 |
|
Single Blind |
..388 |
Substance
Abuse |
24 |
Profile of Mood States |
6 |
|
Single Blind |
.234 |
Substance
Abuse |
100 |
Psychological Test |
7 |
|
Totals |
2.519 |
|
423 |
|
|
|
Average |
.630 |
|
|
|
|
|
Effect Size |
r
=.56 |
|
|
|
|
|
Open Clinical |
.172 |
Graduate
Students |
54 |
Profile of Mood States |
8 |
|
Open Clinical |
.412 |
Post
Traumatic Syndrome |
2 |
Neuropsychiatric Texts |
9 |
|
Open Clinical |
.497 |
Substance
Abuse |
15 |
EEG |
10 |
|
Open Clinical |
.203 |
ADHD |
23 |
Psychological Tests |
11 |
|
Open Clinical |
..182 |
Fibromyalgia |
20 |
Profile of Mood States |
12 |
|
Open Clinical |
.182 |
Fibromyalgia |
60 |
Profile of Mood States |
13 |
|
Totals |
1.648 |
|
299 |
|
|
|
Average |
.275 |
|
|
|
|
|
Effect Size |
r
=.27 |
|
|
|
|
|
SUMMARY,
ALL COGNITION STUDIES REPORTED ABOVE |
|||||
|
Grand Total |
6.167 |
|
648 |
|
|
|
Average |
.474 |
|
|
|
|
|
Total Effect Size |
r
=.44 |
|
|
|
|
|
SUMMARY
OF SUBSTANCE ABUSE PATIENTS ONLY |
|||||
|
Totals |
4.865 |
|
558 |
|
|
|
Average |
.695 |
|
|
|
|
|
Effect Size |
.60 |
|
|
|
|
|
SUMMARY
OF FIBROMYALGIA PATIENTS ONLY |
|||||
|
Totals |
.515 |
|
140 |
|
|
|
Average |
.172 |
|
|
|
|
|
Effect Size |
.17 |
|
|
|
|
a Since percent improvement scores can not
legally be averaged, they are converted into Zr scores, averaged, and then
converted back to percent improvement (effect size.)
b The Profile of Mood States is of published
reliability and validity, as were each of the psychological tests used in the
above studies.
c Effect size, here, is a statistician’s basic
estimate of the overall percentage improvement by the patients as a result of
the treatment
Discussion
In most of the studies, cognitive confusion was but one
symptom within a larger syndrome. For example, in most of the studies,
substance abuse was the presenting syndrome, while in three of the 13 studies,
fibromyalgia was the presenting syndrome. And while all presented symptoms of
cognitive confusion of some type, it is obvious from the above secondary
analysis, that the cognitive dysfunction among the substance abuse patients was
very likely of a different, physiological etiology than that of the
fibromyalgia patients, who may have been experiencing cognitive distraction due
to the stress of the unrelenting pain of their condition.
Researchers earlier received a strong impetus to study CES
in substance abuse patients when in the 1970s it was found that the abstinence
syndrome, including such features as depression, anxiety and insomnia, was seen
to come under control very quickly with CES. Serendipitously it was also
discovered that what had up until the 1980s been termed “permanent brain
damage” in these patients responded to three weeks of CES treatment by bringing
these patients back within the normal functioning range.
A word
about the study types. In the open clinical study, the patients know
they are being actively treated for their level of cognitive functioning, the
clinicians know who is being treated, and the statistician who summarizes the
study data also knows, since there is only one group of patients.
In the single blind study, the patients do not know
which are getting treated and which are getting sham treatment, but the
clinician providing the treatment knows which are the treated patients. In the
single blind study, the clinician doing the post study evaluation of the
patients is often blinded to treatment conditions when he completes his evaluation.
The statistician is usually blinded also, so that he is given two sets of
scores to compare, and doesn’t know which group received the treatment. This
study design was used earlier on before treatment blinding devices came on
stream. In such studies, the treatment was administered sub sensation
threshold, in which the clinician turned up the current intensity until the
patient just felt it, then turned it back down until the patient said he could
no longer feel the stimulation. At that point, the clinician either left the
current at that level or turned the unit off (down to, but not including the
final click). Because both the patients and the statistician are both blind to
the study conditions, some authors have unwittingly published this design as a double
blind experiment. But that term is generally reserved for the true double blind
experimental design as described next.
The double blind study, the gold standard of science,
is usually confined to studies in which neither the patient nor the clinician knows
who is being studied. Those designs became available when a double blinding box
could be inserted between the patient and the CES device. The double blinding
box often had three, four or more settings in addition to a “0” setting in
which current flowed freely between the CES unit and the patient. Among the
other settings available, some passed current to the patient and some blocked
it entirely. The clinician would begin the double blind treatment session by
setting all double blinding boxes to the “0” position, would connect the
patient to the CES electrodes, turn the current up slowly until the patient
signaled he could just feel it, then reduce the stimulus level until the
patient signaled that he could no longer feel it. At that point, the clinician
set the double blinding box to one of the other settings available and left the
patient on the device for 30 minutes to an hour, not knowing who was receiving
actual treatment..
Interestingly, in a good double blind experimental design,
such as was the case in the majority of those reported in the table, the
persons who were responsible for measuring or rating patient improvement were
also blind as to whom was treated, as was the statistician who was given
anonymous groups of data to analyze. Note that, in effect, that makes such
studies quadruple blind, but that term is not used in science.
In the crossover design, half the patients get
treated the first week or two of the study, while the other half receive sham
treatment. In the second half of the study, the formerly treated patients now
receive sham treatment while the formerly sham treated patients receive
treatment. If the crossover does not involve a sham treatment condition, then
the crossover study is treated as an open clinical trial where all patients and
staff know who is being treated at each cross of the study. That design is
often referred to as a study with “wait in line” controls, in that the patients
waiting to begin treatment are tested before and at the end of the waiting
period before going into treatment. That is thought to control for
environmental factors such as unusual stressors on the 10 O’clock news, any
local dramatic weather changes, and so forth.
Interestingly we learned early on in CES work to stay clear
of the cross over design in CES studies, after we discovered that the
improvement begun by a week or so of CES treatment can often continue after
treatment is stopped. That is, the patients continue to get better as time goes
on following treatment. One can imagine what that does to the statistical
analysis when at the end of the study both groups have improved significantly,
but the patients treated first are no longer behaving as good controls should,
but are getting even better than the final treatment group is showing. Many
otherwise good studies were lost early on due to that effect, and one can see
in the table above that the crossover design was wisely avoided in all of the
studies reported.
Safety
It is interesting to note that not one problem from negative
side effects has ever been reported in any published CES study. None of the
patients has raided the fridge during the night and gained weight. None has
complained of grogginess the next day. None has complained of headaches or a
foggy feeling following treatment. Nor has CES been associated with increased
suicide rates. When asked, CES patients have reported instead feeling more
rested, more alert, and less tired following treatment.
One interesting clinical detail we learned early on is that
patients who have not been sleeping well when they enter a study – many of
them, by definition – sometimes make up for lost REM sleep during CES treatment
and have the most vivid, most colorful dreams they have ever had. We learned to
warn study participants of this in advance, since some earlier patients
associated this with incipient schizophrenia or some other serious mental
condition. Once alerted to the possibility they have always looked forward to
the effect with real anticipation.
References
1. Schmitt, R., T. Capo, H. Frazier, and D. Boren (1984)
Cranial electrotherapy stimulation treatment of cognitive brain dysfunction in
chemical dependence. Journal of Clinical Psychiatry. 45:60-063.
2. Schmitt, R., T. Capo, and E. Boyd (1986) Cranial
electrotherapy stimulation as a treatment for anxiety in chemically dependent
persons. Alcoholism: Clinical and Experimental Research. 10(2):158-160.
3. Lichtbroun, A.S., M.C. Raicer, and R.B. Smith (2001) The
treatment of fibromyalgia with cranial electrotherapy stimulation. Journal
of Clinical Rheumatology. 7(2):72-78.
4. Smith, R.B. and L. O’Neill (1975) Electrosleep in the
management of alcoholism. Biological Psychiatry. 10:765-680.
5. Smith, R.B., and E. Day (1977) The effects of cerebral
electrotherapy on short-term memory impairment in alcoholic patients.
International Journal of the Addictions, 12:575-562.
6. Weingarten, E. (1981) The effect of cerebral
electrostimulation on the frontalis electromyogram. Biological Psychiatry.
16(1):61-63.
7. Smith, R.B. (1982) Confirming evidence of an effective
treatment for brain dysfunction in alcoholic patients.Journal of Nervous and
Mental Disease. 170:275-278.
8. Matteson, M.T., and J.M. Ivancevich (1986) An exploratory
investigation of CES as an employee stress management technique. Journal of
Health and Human Resource Administration. 9:93-109.
9. Childs, A., and M.L. Crismon (1988) The use of cranial
electrotherapy stimulation in post-traumatic amnesia: a report of two cases. Brain
Injury. 2:243-247.
10. Braverman, E., R.B. Smith, R. Smayda and K. Blum (1990)
Modification of P300 amplitude and other electrophysiological parameters of
drug abuse by cranial electrical stimulation. Current Therapeutic Research.48(4):586-596.
11. Smith, R.B. (1999) Cranial electrotherapy stimulation in
the treatment of stress related cognitive dysfunction, with an eighteen month
follow up. Journal of Cognitive Rehabilitation 17(6):14-18.
12. Tyers. S., and R.B. Smith (2001) A comparison of cranial
electrotherapy stimulation alone or with chiropractic therapies in the treatment
of fibromyalgia. The American Chiropractor. 23(2):39-41.
13. Tyers, S. and
R.B. Smith (2001) Treatment of fibromyalgia with cranial electrotherapy
A Summary Look at CES Studies Of Depression
By Ray B. Smith,
Ph.D.
Executive Summary. Eighteen studies were analyzed, in
which a total of 853 patients were treated with cranial electrotherapy
stimulation (CES) for depression. The patients had presented with various
clinical syndromes, of which depression played a major part. The treatment
outcome depression scores were combined statistically in order to get a more
confident look at the effectiveness of CES for treating this condition. While
many of the studies were of the classic double blind protocol, others used
either the single blind, the cross over design or were open clinical trials.
The result of the analysis showed that the overall effectiveness of CES was 47%
improvement. The results indicated that various types of depression, which
accompany a wide range of clinical syndromes can be expected to respond,
sometimes dramatically to CES treatment.
Introduction
Meta-analysis is a way of combining the results of many
separate studies to see the effectiveness of a treatment when different types
of patients are studied, under different study conditions, with different study
protocols, and who came to the various studies with differing symptoms
accompanying their depression problem.
The goal of clinical studies is always to first test the effectiveness
of a potential treatment and secondly to discover which patients the treatment
may be most effective in treating. Meta-analysis has the effect of allowing us
to essentially study a larger number of patients than can usually be assembled
for a single study, and the larger the combined study sample, the greater is
the confidence that can be placed in the study outcome: that the study findings
are true and accurate. Also, the more diverse the study group is in the
combined sample, the more confident one can be in generalizing the study
outcome to larger groups of patients outside the study. That is, it increases
the range of potential types of depression patients that we can predict will be
effectively treated with CES.
In the table below is a summary of 18 studies that were
combined into the meta-analysis reported on here.
CES Depression Studies Completed Over the Past 36
Years
|
Study
Design |
Zr
Scorea |
Presenting Group |
No.
Subjects |
Measure
Usedb |
Reference |
|
Double Blind |
1.099 |
Substance
Abuse |
29 |
Clinical Rating Scales |
1 |
|
Double Blind |
.283 |
Substance Abuse |
20 |
Self Rating Scale |
2 |
|
Double Blind |
.255 |
Psychiatric Inpatients |
11 |
Clinical Rating Scale |
3 |
|
Double Blind |
.310 |
Closed
Head Injured |
21 |
Self Rating Scale |
4 |
|
Double Blind |
.321 |
Fibromyalgia |
60 |
Self Rating Scale |
5 |
|
Double Blind |
.511 |
Psychiatric Outpatients |
18 |
Clinician’s Rating |
6 |
|
Double Blind |
.900 |
Insomnia, Anxiety |
17 |
Clinician’s Rating |
7 |
|
Totals |
3.679 |
|
176 |
|
|
|
Average |
.526 |
|
|
|
|
|
Effect Sizec |
r
= .48 |
|
|
|
|
|
Single Blind |
.486 |
Psychiatric Outpatients |
22 |
Clinical Rating Scales |
8 |
|
Single Blind |
.881 |
Substance
Abuse |
72 |
Self Rating Scale |
9 |
|
Totals |
1.367 |
|
94 |
|
|
|
Average |
.684 |
|
|
|
|
|
Effect Size |
r
=.60 |
|
|
|
|
|
Crossover |
.219 |
Psychiatric Inpatients |
23 |
Clinician’s Rating |
10 |
|
Crossover |
.929 |
Insomnia,
Depression |
28 |
Self Rating Scale |
11 |
|
Totals |
1.148 |
|
51 |
|
|
|
Average |
.574 |
|
|
|
|
|
Effect Size |
r
=.52 |
|
|
|
|
|
Open Clinical |
.354 |
Graduate Students |
54 |
Self Rating Scale |
12 |
|
Open Clinical |
.365 |
Fibromyalgia |
20 |
Self Rating Scale |
13 |
|
Open Clinical |
.266 |
Fibromyalgia |
60 |
Self Rating Scale |
14 |
|
Open Clinical |
.662 |
Pain,
Depression |
318 |
Self Rating |
15 |
|
Open Clinical |
.350 |
Psychiatric Outpatients |
9 |
Clinical Rating Scale |
16 |
|
Open Clinical |
.549 |
Chronic
Pain, Depression |
48 |
Serum Analysis |
17 |
|
Open Clinical |
.332 |
ADHD |
23 |
Self Rating Scale |
18 |
|
Totals |
2.878 |
|
532 |
|
|
|
Average |
.411 |
|
|
|
|
|
Effect Size |
r
=.39 |
|
|
|
|
|
SUMMARY,
ALL DEPRESSION STUDIES REPORTED ABOVE |
|||||
|
Grand Total |
9.072 |
|
853 |
|
|
|
Average |
.504 |
|
|
|
|
|
Total Effect Size |
r
=.47 |
|
|
|
|
a r correlation scores, representing percent
improvement, are obtained mathematically from the study outcomes presented by
the authors. Scores such as percent change scores, the statistical probability
scores reported, Fscores, t scores, and the like, are changed to
r correlation scores and then into Zr scores. That is because percent
improvement scores can not legally be averaged. The Zr scores are then averaged
and converted back to percent improvement (effect size.)
b Most of the rating scales, both by the patients
and the clinicians were of published reliability and validity. In many of the
studies, more than one measure of depression was used. In those cases, the
average of the results was calculated and reported as the overall result of the
study.
c Effect size, here, is a statistician’s basic
estimate of the overall percentage improvement by the patients as a result of
the treatment
Discussion
In many of the studies, depression was but one symptom
within a larger presenting syndrome. For example in many of the patients,
fibromyalgia was the presenting symptom, while in another large group of
studies substance abuse (drug abstinence syndrome) was the presenting
diagnosis. The presenting syndrome or type of patient is given in column three
of the table. In all of the studies, however, depression was a major diagnosis
within the presenting syndrome or group.
A word
about the study types. In the open clinical study, the patients know
they are being actively treated for their depression, the clinicians know who
is being treated, and the statistician who summarizes the study data also
knows, since there is only one group of patients.
In the single blind study, the patients do not know
which are getting treated and which are getting sham treatment, but the
clinician providing the treatment knows which are the treated patients. In the
single blind study, the clinician doing the post study evaluation of the
patients is often blinded to treatment conditions when he completes his
evaluation. The statistician is usually blinded also, so that he is given two
sets of scores to compare, and doesn’t know which group received the treatment.
This study design was used earlier on before treatment blinding devices came on
stream. In such studies, the treatment was administered sub sensation threshold,
in which the clinician turned up the current intensity until the patient just
felt it, then turned it back down until the patient said he could no longer
feel the stimulation. At that point, the clinician either left the current at
that level or turned the unit off (down to, but not including the final click).
Because both the patients and the statistician are both blind to the study
conditions, some authors have unwittingly published this design as a double
blind experiment. But that term is generally reserved for the true double blind
experimental design as described next.
The double blind study, the gold standard of science,
is usually confined to studies in which neither the patient nor the clinician
knows who is being studied. Those designs became available when a double
blinding box could be inserted between the patient and the CES device. The
double blinding box often had three, four or more settings in addition to a “0”
setting in which current flowed freely between the CES unit and the patient. Among
the other settings available, some passed current to the patient and some
blocked it entirely. The clinician would begin the double blind treatment
session by setting all double blinding boxes to the “0” position, would connect
the patient to the CES electrodes, turn the current up slowly until the patient
signaled he could just feel it, then reduce the stimulus level until the
patient signaled that he could no longer feel it. At that point, the clinician
set the double blinding box to one of the other settings available and left the
patient on the device for 30 minutes to an hour, not knowing who was getting
active treatment..
Interestingly, in a good double blind experimental design,
such as was the case in the majority of those reported in the table, the
persons who were responsible for measuring or rating patient improvement were
also blind as to whom was treated, as was the statistician who was given
anonymous groups of data to analyze. Note that, in effect, that makes such
studies quadruple blind, but that term is not used in science.
In the crossover design, half the patients get
treated the first week or two of the study, while the other half receive sham
treatment. In the second half of the study, the formerly treated patients now
receive sham treatment while the formerly sham treated patients now receive
treatment. If the crossover does not involve a sham treatment condition, then
the crossover study is treated as an open clinical trial where all patients and
staff know who is being treated at each cross of the study. That design is
often referred to as a study with “wait in line” controls, in that the patients
waiting to begin treatment are tested before and at the end of the waiting
period before going into treatment. That is thought to control for
environmental factors such as unusual stressors on the 10 O’clock news, any
local dramatic weather changes, and so forth.
Interestingly we learned early on in CES work to stay clear
of the cross over design in CES studies, after we discovered that the improvement
begun by a week or so of CES treatment often continued after the end of
treatment. That is, the patients continue to get better as time goes on
following treatment. One can imagine what that does to the statistical analysis
when at the end of the study, both groups have improved significantly, but the
patients treated first are no longer behaving as good controls should, but are
getting even better than the final treatment group is showing. Many otherwise
good studies were lost early on due to that effect. The two crossover studies
reported in the table above obviously avoided this difficulty, perhaps due to
shorter term treatment before the crossover.
Safety
It is interesting to note that not one problem from negative
side effects has ever been reported in any published CES depression study. None
of the patients has threatened or attempted suicide during or following
treatment. None has complained of grogginess the next day. None has complained
of headaches or a foggy feeling at the end of the treatment period. When asked,
CES patients have reported instead feeling more rested, more alert, and less
tired following treatment.
One interesting clinical detail we learned early on is that
patients who have not been sleeping well when they enter a study sometimes make
up for lost REM sleep during CES treatment and have the most vivid, most
colorful dreams they have ever had. We learned to warn study participants of
this in advance, since some earlier patients associated this with incipient
schizophrenia or some other serious mental condition. Once alerted to the
possibility they have always looked forward to the effect with real
anticipation.
References
1. Bianco, F. Jr. (1994) The efficacy of cranial
electrotherapy stimulation (CES) for the relief of anxiety and depression among
polysubstance abusers in chemical dependency treatment. Ph.D. Dissertation,
The University of Tulsa.
2. Krupitsky, E.M., A.M. Burakov, G.F. Karandashova, J.
Katsnelson, V.P. Lebedev, A.J. Grinenko, and J.S. Borodkin (1991). The administration
of transcranial electric treatment for affective disturbances therapy in
alcoholic patients. Drug and Alcohol Dependence. 27:1-6.
3. Levitt, E.A., N.M. James, and P. Flavell (1975) A
clinical trial of electrosleep therapy with a psychiatric inpatient sample. Australian
and New Zealand Journal of Psychiatry. 9(4):287-290.
4. Smith, R.B., A. Tiberi, and J. Marshall (1994). The use
of cranial electrotherapy stimulation in the treatment of closed-head-injured
patients. Brain Injury. 8(4):357-361.
5. Lichtbroun, A.S., M.C. Raicer, and R.B. Smith (2001) The
treatment of fibromyalgia with cranial electrotherapy stimulation. Journal
of Clinical Rheumatology. 7(2):72-78.
6. Rosenthal, S.H. (1972) Electrosleep: A double-blind
clinical study. Biological Psychiatry. 4(2):179-185.
7. Moore, J.A., C.S. Mellor, K.F. Standage, and H.A. Strong
(1975) A double-blind study of electrosleep for anxiety and insomnia. Biological
Psychiatry. 10(1):59-63.
8. Rosenthal, S.H., and N.L. Wulfson (1970) Electrosleep: A
clinical trial. American Journal of Psychiatry127(4):175-176.
9. Smith, R.B. and L. O’Neill (1975) Electrosleep in the
management of alcoholism. Biological Psychiatry.10(6):675-680.
10. Feighner, J.P., S.L. Brown, and J.E. Olivier (1973)
Electrosleep therapy: A controlled double-blind study.Journal of Nervous and
Mental Disease. 157(2):121-128.
11. Hearst. E.D., C.R. Cloninger, E.L. Crews, and R.J.
Cadoret (1974) Electrosleep therapy: a double-blind trial.Archives of
General Psychiatry. 30(4):463-466.
12. Matteson, M.T., and J.M. Ivancevich (1986) An
exploratory investigation of CES as an employee stress management technique.
Journal of Health and Human Resource Administration. 9:93-109.
13. Tyers. S., and R.B. Smith (2001) A comparison of cranial
electrotherapy stimulation alone or with chiropractic therapies in the
treatment of fibromyalgia. The American Chiropractor. 23(2):39-41.
14. Tyers, S. and R.B. Smith (2001) Treatment of
fibromyalgia with cranial electrotherapy stimulation. The Original Internist
8(3):15-17.
15. Smith, R.B. (2001) Is microcurrent stimulation effective
in pain management? An additional perspective.American Journal of Pain
Management. 11(2):62-66.
16. Rosenthal, S.H., and N.L. Wulfson (1970) Electrosleep: A
clinical trial. American Journal of Psychiatry127(4):175-176.
17. Shealy, C.N., R.K. Cady, R.G. Wilkie, R. Cox, S. Liss,
and W. Clossen (1989) Depression: a diagnostic, neurochemical profile and
therapy with cranial electrical stimulation (CES). Journal of Neurological
and Orthopaedic Medicine and Surgery. 10(4):319-321.
18. Smith R.B. (1999)
Cranial electrotherapy stimulation in the treatment of stress related cognitive
dysfunction, with an eighteen month follow up Journal of Cognitive
rehabilitation.
Cranial
Electrotherapy Stimulation
Possible
Mechanisms of Action
By Ray B. Smith,
Ph.D.
Any time
a new medical treatment comes on line, there is pressure to explain how it
works. While Cranial Electrotherapy Stimulation (CES) has been in medical use
for the past 53 years (it came into being as “electrosleep” in Europe in 1953),
there has been no definitive, settled explanation of its mechanism of action.
To
explain its mechanism satisfactorily, a treatment has to be understood within
one of the accepted explanatory concepts currently in vogue in medical science.
Some of the theories that are more or less active at present are as follows:
The Nervous System. The major current concept is that
the body functions via a more or less hard wired nervous system. In this
theoretical system, the body is neuronally wired to receive incoming stimuli
via its afferent neurons, send them to the central nervous system, which then
sends out response stimuli via its efferent neurons. One touches a finger
accidentally to a hot surface and the finger is immediately jerked away from
the hot stove, for example.
Since
the neurons don’t ordinarily physically touch, the neural wiring functions via
synaptic endings on the neurons in which the pre synaptic membrane discharges
neurochemicals from stored vesicles into the synapse between the neurons and
these stimulate receptors on the post synaptic membrane (the receiving membrane
of the neuron next in line to fire) and that neuron fires the next neuron or
the sensitive membrane on a muscle receptor, and so forth.
To work
as efficiently as it was designed to work, all the neurons must be intact, and
all the neurochemicals that are involved in the neurological firing patterns
have to be in balance with all the others. If one neurochemical is out of
balance, either it over fires or under fires the system for which it is
responsible, in which case physical or emotional symptoms of one kind or another
arise. For example, if there is not enough dopamine, Parkinson like symptoms
develop. If there is not enough serotonin, depression results, etc.
If CES is to be effective within this system, then it must
be shown that CES acts to bring back into balance neurotransmitters that are
out of balance with their associates. Pozos completed a series of interesting
experiments with canine subjects that looked at this possibility. They examined
the adrenergic-cholinergic balance in the brain.
His research group theorized that if CES actually stimulated
neurons to fire, as CES salesmen were claiming, he could give some of the dogs
reserpine plus CES stimulation and the reserpine would block the reuptake of
dopamine into the presynaptic vesicles. That would reduce the amount of
dopamine available in the presynaptic vesicles to fire the postsynaptic neurons
on the adrenergic side, and the cholinergic system would gain the upper hand.
He did that, and discovered that in doing so he had thrown the adrenergic
system out of balance with the cholinergic system and the dogs began to show
Parkinson like symptoms.
Pozos was not directly measuring dopamine in the dog’s
brain, however, so he thought he would do some more experiments to make sure he
was in the right ballpark. He decided to block the uptake of acetylcholine on
the other side of the adrenergic-cholinergic equation. It was the acetylcholine
uptake that was firing that side of the equation and instigating the Parkinson
like symptoms. To do this, he gave his CES stimulated dogs, which were still in
Parkinson like tremors, some atropine to block the acetylcholine uptake. The
tremors ceased.
He decided that since he was not, after all, measuring
either dopamine or acetylcholine, he would check the system further by taking
another group of CES treated, tremoring dogs, remove the atropine from the
cholinergic side and add physostigmine instead. Physostigmine would actually
stimulate the cholinergic nerves to fire more rapidly than usual. He did this,
and the dogs showed the most pronounced tremors ever.
Pozos was reasonably certain that he had the correct system
and had shown that CES could effectively stimulate an increase in the
manufacture of dopamine. But wait. If that were the case, then CES should be
able to put the terribly out of balance system in the dog’s brain back to
normal when all provoking chemicals were removed. To that end, he removed the
drugs from all the dogs’ systems, gave all of them regular food and water for
the following week. In addition, a third received L-Dopa, and another third of
them received CES stimulation.
The non treated animals returned to normal, non-Parkinson
like states within three to five days. The CES treated animals, however,
returned to normal, non-Parkinson like states within 3 to 7 hours, as did the
third of the animals receiving L-Dopa.1
Another study actually counted the number of presynaptic
vesicles in presynaptic membranes of squirrel monkeys before, after several
minutes of CES stimulation, and for a time following the cessation of
stimulation. Their findings convinced them that CES acted essentially to
stimulate the vesicles to empty their contents, thus reducing them in number.
But CES then acted to dramatically increase the number of new vesicles formed
as stimulation continued. Once the stimulation had ceased, the number of
vesicles tended to gradually return to their pre stimulus levels over time.2
A similar study was run in human narcotics addicts in which
the depletion of endorphin by the narcotics had presumably thrown off the
balance between the endorphin and norepinephrine systems in the locus ceruleus
of the brain. Once the narcotics, which had been mimicking endorphin and
thereby down-regulated that system, were removed, norepinephrine got the upper
hand and physiological withdrawal symptoms began. The researchers knew that
they could block the post synaptic receptors to norepinephrine with alpha
methyl dopa and thereby stop the withdraw symptoms, but thought they would also
try CES stimulation on half of the patients to see if CES could stimulate
increased endorphin production, and thereby rebalance the system.
They found that both treatments worked equally well, so that
the physicians who monitored the double blind research could never tell which
patients were treated with alpha methyl dopa and which were receiving CES.
Until after the study, that is, when the drug patients went into rebound
depression and the CES treated patients did not.3
Acupuncture theories. Following President Nixon’s
visit to China, acupuncture treatment came into a sort of vogue in the U.S. and
still plays a role in some medical circles. The theory behind acupuncture is
that the body works on an energy homeostasis and at times, and for any number
of reasons that system can be thrown out of balance. It was for that reason
that earlier on CES was thought by many to perhaps have its effects by
stimulating this system to increased energy balance when insufficient energy
was present in the system to keep the body working normally.
Energy is known to flow through the collagen connective
tissues of the body, and some areas of the body are more sensitive to energy
incoming in to that system than others. These sensitive areas are known as
acupuncture points, and CES may well supply energy to that system, though not
necessarily by stimulating those points directly.
CES electrodes are placed at various places on the head so
that the stimulating current is allowed to pass through the head. CES current
has been shown to spread around the head and scalp while also going through the
entire brain, though canalizing along the limbic, or “emotion” brain.4
As anyone knows who has placed CES electrodes on the mastoid
processes behind the ears and turned the current up, one tends to get an
involuntary grin when the current spreads to the facial muscles, and similarly,
there can be light flashes keeping time with the CES pulse as the energy passes
through the ocular apparatus in the eyes. For this reason, it is very likely
that any acupuncture points on or about the head would receive sufficient
stimulation, wherever they are located, to respond to CES stimulation. For
example, in some therapeutic strategies, several of those points on the face
are said to be dramatically activated by merely softly tapping on them with the
finger tips.5 Not enough is known about the acupuncture system by
the present author to speculate further on just how CES may effect bodily
changes via the acupuncture route, but it may be shown to do so in the future..
There are other energy flow systems that are active
throughout the body, such as the vascular system as an electrical
transmission system. Nordenstrom has shown that the vascular system acts as
a biologically closed electric circuit in which energy flows readily, pulling
and pushing electrically charged blood components so as to keep the body in
functional homeostasis. That system is active both in the arteries and veins,
whose walls act as insulation, and in the vascular-interstitial spaces.6
To date, no known studies of how CES effects or interacts with this system
exists.
Nor are any CES studies known to exist regarding the
perineural electrical system which Becker has shown also acts throughout
the body as an electrical system acting peripherally to, but separately from
the nervous system.7
EEG studies. Numerous EEG studies, MRI studies and
the like have been done with CES stimulated subjects, several of which are
reported in the sleep studies and addiction studies sections. Several of those
studies are ongoing, and new ones are being planned as this is being written.
In looking through the various studies that have been done over the years, it
can be stated that CES is invariably found to work changes in the brain’s
neural firing pattern. While the effects of those changes can be difficult to
decipher, none has been thought to have a negative impact of any sort on the
patients studied. For example, no seizures have ever been detected accompanying
CES treatment, even among known seizure patients.8
Neurohormonal
studies. Several studies have been done on the ability of CES to effect a
return to more normal conditions hormones that are out of balance in depressed
patients,9 and those such as DHEA, testosterone, estrogen, and IGF-1
in older subjects in whom those hormone levels were low.10
Synchronicity
Theory. The science of spontaneous order as the synchronicity field is now
being called appears to be rising fast as a new way of describing medically
related phenomena.11 In this theory, every part of the body is seen
to be functionally synchronized with every other part, and each organ is
specifically functionally synchronized within itself. The entire body is also
synchronized with the external environment. When any part of the body becomes
desynchronized on any of the three synchronicity levels illness results.
Synchronicity can easily be seen on TV nature channels when thousands of
schooling fish dart first in one direction and then another, quite
spontaneously and never hitting another nearby fish when attacked by a feeding
shark. Large flocks of migrating birds can be seen wheeling at high speeds
overhead in first one direction and then another without ever colliding even
though there may be hundreds of birds flying in the close formation.
Similarly, in the human body, all
liver cells have to be functioning in sync for the liver to get its work done.
The same is true of the pancreas, the heart muscles, the adrenal glands, and so
forth. Further all the various organs, even while entraining their separate
rhythms, have to work in synchrony with all the others if the body is to
function properly.12
The
master clock that regulates circadian rhythm in the rat has been found to be a
monosynaptic neural pathway from the retina in the eye to the two small
suprachiasmatic nuclei in front of the hypothalamus. This pathway, while
originating in the eye, has nothing to do with vision, nor does it fire into
any visual centers of the brain. It appears to be dedicated specifically to the
purpose of regulating the synchronicity between the rat and its external
environment.
Researchers are still looking for the master clock within each of our
body’s organs and in the body as a whole. The future may well show that the
incoming, timed rhythmic pulsations of electric energy involved in CES
treatment acts in some way to reset a desynchronized body back into normal
synchronicity and thereby produces a more healthful functioning.
Summary
CES has been shown to travel throughout the brain, and in
the process bring back to normal neurohormonal systems that have been
deliberately thrown out of balance by researchers or by patients themselves, in
the case of narcotics addicts. It has been shown to bring back to more youthful
levels several hormones that are typically reduced in aging.
CES, then, is thought to act to balance physiological
systems that have become unbalanced by whatever means. An interesting corollary
to that is the often obtained clinical finding that once a patient is back in
balance – these are often seen in the drug abstinence syndrome, for example –
CES ceases to have an effect and the patient stops using it. For that reason it
is known to not be addicting or habit forming in any way. And in none of the
studies to date has a significant negative side effect been reported.
References
1. Pozos, R.S., L.E. Strack, R.K. White, and A.W. Richardson
(1971) Electrosleep versus electroconvulsive therapy. In Reynolds, D.V. and
A.E. Sjorberg, (Eds) Neuroelectric Research. Springfield, Charles
Thomas. pp 221-225.
2. Siegesmund, K.A., A. Sances Jr., and S.J. Larson (1967)
The effects of electrical currents on synaptic vesicles in monkey cortex. In
Wageneder, F.M. and St. Shuy (Eds) Electrotherapeutic Sleep and
Electroanaesthesia. International Congress Series No. 136. Neew York:
Excerpta Medica Foundation, kpp 31-33.
3. Gold, M.S., A.L.C. Pottash, H. Sternbach, J. Barbaban,
and W. Annitto (1982) Anti-withdrawal Effects of Alpha Methyl Dopa and
Cranial Electrotherapy. Paper presented at The Society for Neuroscience. 12th
Annual Meeting, October.
4. Jarzembski, W.B., S.J. Larson, and A. Sances Jr. (1970)
Evaluation of specific cerebral impedance and cerebral current density. Annals
of the New York Academy of Sciences, 170:476-490.
5. Flint, G.A. (2001) Emotional Freedom; Techniques for
Dealing with Emotional and Physical Distress.Vernon, British Columbia:
NeoSolterric Enterprises. pp 25-26.
6. Nordenstrom, B.E.W. (1983) Biologically Closed
Electric Circuits; Clinical, Experimental and Theoretical Evidence for an
Additional Circulatory System. Stockholm:Nordic Medical Publications. pp
269-317.
7. Becker, R.O., and G. Selden (1985) The Body Electric;
Electromagnetism and the Foundation of Life. New York: Williami Morrow. pp
79-117.
8. Smith, R.B., A. Tiberi, and J. Marshall (1994). The use
of cranial electrotherapy stimulation in the treatment of closed-head-injured
patients. Brain Injury. 8(4):357-361.
9. Shealy, C.N., R.K. Cady, R.G. Wilkie, R. Cox, S. Liss,
and W. Clossen (1989) Depression: a diagnostic, neurochemical profile and
therapy with cranial electrical stimulation (CES). Journal of Neurological
and Orthopaedic Medicine and Surgery. 10(4):319-321.
10. Smith, R.B. and C.A. Ryser (2000) Important Things we
Learn When Research Goes Awry. Paper presented at the International
Oxidative Medicine Association conference, Denver, Colorado.
11. Strogatz, S. (2003) Sync; the Emerging Science of
Spontaneous Order. New York: Hyperion books. pp 70-100.
A Summary Look
at CES Sleep Studies
Ray B. Smith, PhD
Executive Summary. Eighteen studies, in which
a total of 648 patients with various types of sleep disorders were treated with
cranial electrotherapy stimulation (CES), were combined statistically in order
to get a more confident look at the effectiveness of CES for treating this
condition. While most of the studies were of the classic double blind protocol,
others used either the single blind, the cross over design or were open
clinical trials. The result of the analysis showed that the overall
effectiveness of CES was an impressive 62% improvement, and when the studies
were weighted in terms of the rigorousness of the study design employed, the
improvement was found to be an even stronger 67%. The results also indicated that
a wide range of sleep disorders can be expected to respond to CES treatment.
Meta-analysis is a way of combining the results of many
separate studies to see the effectiveness of a treatment when different types
of patients are studied, under different study conditions, with different study
protocols, and who came to the various studies with differing symptoms
accompanying their sleep problem.
The goal of clinical studies is always to first test the
effectiveness of a potential treatment and secondly to discover which patients
the treatment may be most effective in treating. Meta-analysis has the effect
of allowing us to essentially study a larger number of patients than can
usually be assembled for a single study, and the larger the combined study
sample, the greater is the confidence that can be placed in the study outcome:
that the study findings are true and accurate. Also, the more diverse the study
group is in the combined sample, the more confident can we be in generalizing
the study outcome to larger groups of people outside the study. That is, it
increases the range of potential types of insomnia patients that we can predict
will be effectively treated with CES.
In the table below is a summary of 18 studies that were
combined into the meta-analysis reported on here.
CES Sleep Studies Completed Over the Past 43 Years
|
Study Design |
Zr
Scorea |
No. Subjects |
Measure Usedb |
Reference |
|
Double Blind |
.388 |
27 |
EEG, Clinician’s Rating |
1 |
|
Double Blind |
.908 |
30 |
Self Rating Scale |
2 |
|
Double Blind |
.875 |
60 |
Self Rating Scale |
3 |
|
Double Blind |
.590 |
18 |
Clinician’s Rating |
4 |
|
Double Blind |
.448 |
21 |
Self Rating Scale |
5 |
|
Double Blind |
1.127 |
22 |
Clinician’s Rating |
6 |
|
Double Blind |
1.528 |
10 |
EEG, Self Rating Scale |
7 |
|
Totals |
5.864 |
188 |
|
|
|
Average |
.838 |
|
|
|
|
Effect Sizec |
r
= .69 |
|
|
|
|
Single Blind |
1.650 |
28 |
PRN Sleep Meds |
8 |
|
Single Blind |
.448 |
28 |
Clinician’s Rating |