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FROM MEGABRAIN REPORT VOL. 2 NO. 3 Edited by Michael Hutchison THE BRAINWAVE INVESTIGATION by Michael Hutchison The brain is powered by electricity. Each of its billions of individual cells "fires" or electrically discharges at a specific frequency. The electrical activity of the brain can be monitored by placing sensors or electrodes against the scalp, which register the minute electrical signals happening inside the brain, much the way a seismograph can detect tremors taking place inside the earth. These electrical signals are known as the electroencephalogram; the device that registers them is called an electroencephalograph, or EEG. What the EEG reveals to us are not the firings of individual brain cells, but the cooperative or collective electrical patterns of networks or communities of millions of cells firing together--fluctuations of coherent or synchronous energy pulsing through the networks of the brain. These collective energy pulsations are called brain waves. Since the first EEG was devised early in this century, scientists have found that the brain has a tendency to produce brain waves of four distinct varieties, which they have called beta, alpha, theta and delta. BETA. The most rapid brain waves, beta waves, range in frequency from about 14 cycles per second (called 14 Hertz, abbreviated Hz) to more than 100 Hz (some scientists now refer to brain waves above 30 Hz as Gamma waves). When we are in a normal waking state, eyes open, focusing on the world outside ourselves, or dealing with concrete, specific problems, beta waves (particularly beta waves between 14 and 40 Hz.) are the most dominant and powerful waves in the brain. Beta waves are associated with alertness, arousal, concentration, cognition and--at excessive levels--anxiety. ALPHA. As we close our eyes and become more relaxed, passive, or unfocused, brain wave activity slows down, and we produce bursts of alpha waves, which range in frequency from about 8 to 13 Hz. If we become quite relaxed and mentally unfocused, alpha waves become dominant throughout the brain, producing a calm and pleasant sensation called the "alpha state." The alpha state seems to be the brain's "neutral" or idling state, and people who are healthy and not under stress tend to produce a lot of alpha activity. Lack of significant alpha activity can be a sign of anxiety, stress, brain damage or illness. THETA. As calmness and relaxation deepen into drowsiness, the brain shifts to slower, more powerfully rhythmic theta waves, with a frequency range of about 4 to 8 Hz. Theta has been called the "twilight state," between waking and sleep. It's often accompanied by unexpected, dreamlike mental images. Often these images are accompanied by vivid memories, particularly childhood memories. Theta offers access to unconscious material, reveries, free association, sudden insight, creative ideas. It's a mysterious, elusive state, and for a long time experimenters had a difficult time studying it because it is hard to maintain for any period of time--most people tend to fall asleep as soon as they begin generating large amounts of theta. DELTA. As we fall asleep the dominant brain waves become delta, which are even slower than theta, in the frequency range below 4 Hz. When most of us are in the delta state we're either asleep or otherwise unconscious. However, there is growing evidence that individuals may maintain consciousness while in a dominant delta state. This seems to be associated with certain deep trance-like, transcendent or "non- physical" states. TAKING CHARGE: BIOFEEDBACK AND BRAIN POWER CONTROL YOURSELF Stop a moment. Now, change your brain wave activity into an alpha rhythm. . . . The question immediately arises, How? How do I know when my brain waves are in alpha? And how is it possible to change my brain waves intentionally? One of the central assumptions of western physiology has been that there is a fundamental distinction between parts of the human body that we can consciously control--the so-called "voluntary" components--and those parts over which we have no conscious control--the "involuntary" or autonomic components. These involuntary components traditionally included brain waves, as well as such things as the expansion and contraction of our blood vessels, blood pressure, heart rate, the secretion of hormones, healing and the activity of the immune system. Then the lightning bolt hit. With the development sensitive instruments that could measure minute changes in the body, scientists found that if they monitored the activity of one of the so-called involuntary processes of a human subject and fed it back to the subject with some sort of visual or auditory signal, the subject could learn to bring that process under voluntary control. They called this process biofeedback. DISCOVERING THE BODYMIND In a burst of studies throughout the 1960s that caused a sensation in the scientific world, biofeedback researchers proved that subjects could take voluntary control of virtually any physiological process--even the firing rhythm of individual nerve cells. One researcher, John Basmajian, hooked up subjects so they could monitor the firing rhythm of a specific neuron (called a single motor unit). Each time the neuron fired, the subjects would be fed back a sound like a drumbeat. Amazingly, the subjects quickly learned how to control the rhythm with which the cells fired, creating intricate drum rolls, gallops and beats. Elmer and Alyce Green of the Menninger Foundation wrote with excitement, "It may be possible to bring under some degree of voluntary control any physiological process that can continuously be monitored, amplified, and displayed." This was a momentous discovery--it meant that the long-held belief of a clear separation between voluntary and involuntary components of the human system was not accurate. It meant such processes as the secretion of hormones and the operation of the immune system could theoretically be intentionally controlled. It also meant that the whole foundation of mind-body dualism upon which all of western thought had been based--that there was a clear and necessary separation between the mind and the body--had to go out the window. For clearly there was some link, still mysterious, between mind and body. It was the beginning of a great paradigm shift that was to lead to the development of such fields as psychoneuroimmunology and psychobiology, and to the emergence of a new vision of the mind and body as a single, indivisible unit, a field of intelligence, a bodymind. INSTANT SATORI MACHINES AND THE ROYAL ROAD TO BLISS The 1960s was a time when large numbers of people were extremely interested in experiencing peak states. For many, psychedelics were the most quick and reliable mind expansion technique. But drugs, while powerful and effective state change tools, had drawbacks. They were illegal, which caused much inconvenience. The state changes they produced were long-lasting and durable, which made it next to impossible to change back into ordinary brain states on demand. This too caused much inconvenience, not to mention bad trips. They also had unknown long-term effects on health. So, many people were eager to find a "drugless high," or some way to expand consciousness without the drawbacks of psychedelic drugs. The Beatles, among others, had become followers of a guru who taught them meditation. They began singing the praises of meditation as a way of reaching heightened states of consciousness without drugs. The guru appeared on the Johnny Carson show, wearing his white robes, giggling, and holding a flower. Meditation was In. Millions of people began trying to meditate. Millions of people were disappointed to find that meditation took practice and discipline, and did not instantly catapult them into enlightenment. Many of those most interested in exploring mind expansion were young psychologists and other scientists who had chosen the brain as their field of study. It made sense to them to focus their research, and use whatever technology was available to them, such as EEGs, to explore what was going on in the brain during experiences of expanded consciousness, such as meditation. When they looked at the EEG tracings it quickly became clear that meditators produced a lot of alpha waves. Some of these young researchers, led by Joe Kamiya, developed a type of EEG that was "tuned" to respond to alpha waves by producing a tone: brainwave feedback. When people used EEG biofeedback, they could quickly learn to produce alpha waves simply by doing things that produced the tone, such as sitting with their eyes closed, in a relaxed, passive state. The researchers noticed that people who went through this alpha feedback training process experienced interesting changes--they became more calm and relaxed in their daily lives, they tended to give up such habits as smoking and heavy drinking, and they learned how to produce alpha waves at will, even when not hooked up to the biofeedback system. This was exciting. I remember it well. What a mysterious thing-- changing what's happening inside your head. And when you do it, how exciting, what fun, and what a sudden surge of power. ON THE JOYS OF OBSERVING YOUR OWN BRAIN I had gotten my first taste of it when I had overheard someone talking about an experiment going on at New York University, and wangled my way into the experimental group by claiming to be an NYU student. I learned to generate alpha waves by making a machine go click click click. For long delightful periods I would sit there with the machine caressing me with timeless strings of beautiful clicks. It was delightful and mysterious, and a large part of the delight and the mystery was that I was listening to the activity of my own brain, and becoming aware of every subtle little change that took place within it, learning that if I thought of certain things the clicks would stop, and if I thought of other things, or stopped thinking, the clicks would start. To me it was amazing to learn that I could in fact change my brain, and the things that were going on inside it. What a revelation. Until then, I had always assumed that whatever was going on in my mind--sadness, anger, confusion, joy--was simply "going on," and that it would keep going on until it stopped going on and something else started going on. But as I sat by the alpha trainer learning to spin out lovely chains of clicks--and learning to make them stop, if I wanted to--I learned that you could change your mind. It struck me as being a process something like changing tv channels. If you don't like the soap opera that's on channel 2, change to the western on channel 4. I was filled with a sense of power. Not the power to stop speeding locomotives, or leap tall buildings at a single bound. But much more modest and personal power. The power of being aware of my own mind, of learning how to pay attention to how I was paying attention, and knowing that I had some control over it. I loved the sessions, and would have kept coming back to the lab for years, except suddenly the experiment was over. No more sessions. And so my experience of EEG biofeedback was over. Or, as I was later to find out, put on hold for the next 12 years. But meanwhile, the word was leaking out. You could get high on alpha feedback. Some researchers even suggested that the alpha state was synonymous with meditation. This was Big News, and the mass media soon latched onto it. Sensational stories about "instant nirvana," and "mechanical meditation," claimed that the Alpha State was not only the same thing as meditation, but could also be a quick cure for stress, one without all the mystic voodoo and spiritual trappings that most people associated with meditation. As research psychologist Joe Kamiya, who was the pioneer investigator of alpha feedback, remembers it, "a surprisingly large number of people seemed to conclude that alpha would be the royal road to bliss, enlightenment, and higher consciousness. Nirvana now, through feedback." Sales of "alpha machines" boomed. Thousands of people sat around learning to get into alpha. The upshot of all this hullaballoo was predictable. Mainstream psychologists, determined to establish psychology as a hard science, were uneasy with talk of nirvana, bliss and higher consciousness, instant or otherwise. Mainstream psychiatrists and the medical establishment--already up in arms about the so-called Psychedelic Revolution--felt a clear duty to suppress this nascent "mind-expansion technology." Except for those who undertook EEG studies for the express purpose of "debunking" alpha feedback, EEG feedback research was not encouraged--the grants and research fellowships went elsewhere. Some determined psychologists continued to do EEG research, but for the next 20 years, their research was largely ignored by mainstream psychologists, or dismissed as "fringe" science. As a result, by the early 1970s the popular craze for alpha machines came to an end. In part, it was because of the concerted opposition of the medical, scientific and cultural mainstreams. In part it was simply because it is in the nature of crazes to come and go. Another reason personal alpha trainers didn't really catch on was that the machines themselves were still too crude (this was before the invention of the microprocessor, which would later make it possible to shrink such devices down from the size of a suitcase to the size of a pack of cigarettes). Another reason was that people had exaggerated expectations. They'd heard that alpha was a mystic state, satori, bliss and sudden illumination. So they tried it out, and found that it was . . . well . . . okay. As I say, it could give you a feeling of power, but it was a very modest and subjective sort of power, the usefulness of which was not immediately apparent. Also, most of these expectant seekers of bliss only used their devices sporadically and for relatively brief sessions, while later research was to reveal that many of the most profound benefits of alpha EEG training depended on "massed practice"--substantial blocks of training time. Meanwhile, ironically, as the public and mainstream psychologists lost interest in EEG biofeedback, some of the hardcore EEG researchers began making some discoveries that were in actual fact earthshaking and dazzling. DISCOVERING THE TWILIGHT ZONE Earlier, in the 1960s, Japanese scientists had conducted a series of EEG studies of Zen monks going into deep meditative states. They had found that as monks went into meditation they did indeed go into alpha, but the most skilled meditators sank right through alpha and began producing the slower theta waves. And, intriguingly, even in the depths of theta--for most people the gateway to sleep--the monks were not asleep but extremely mentally alert. Interestingly, the more meditative experience a monk had, the more theta he generated. And the only ones who were able to get into this deep theta state quickly and at will were those monks who had more than twenty years of meditative experience. Excited by this work, biofeedback researchers Elmer and Alyce Green of the Menninger Foundation decided to explore the effects of theta, and designed a biofeedback device that enabled them to train subjects to enter theta. As they observed many people experiencing theta, the Greens concluded it was "associated with a deeply internalized state and with a quieting of the body, emotions, and thoughts, thus allowing usually 'unheard or unseen things' to come to the consciousness in the form of hypnagogic memory." The Greens next designed a study in which one group learned to enter theta for a period of time every day, while another group-- called a control group--simply became very relaxed. They discovered that the theta subjects frequently reported vivid memories of long-forgotten childhood events: "They were not like going through a memory in one's mind," said the Greens, "but rather like an experience, a reliving." They also found that those producing theta waves frequently became highly creative, and had "new and valid ideas or syntheses of ideas." They were also surprised to discover that the subjects they taught to enter the theta state reported that they had life-altering insights, or what the Greens called "integrative experiences leading to feelings of psychological well-being." They fell in love, discovered new talents, decided to change jobs and strike out in new, more satisfying directions. In essence, these people felt their lives had been transformed. When they gave them psychological tests, the Greens discovered that the theta subjects were "psychologically healthier, had more social poise, were less rigid and conforming, and were more self- accepting and creative" than the control group. Finally, and most astonishingly, the Greens were surprised to note that those taught to enter the theta state became very healthy. While the control group (the one not producing theta) continued to have its normal number of illnesses, the theta group had almost no illness whatsoever. It seemed the Greens had stumbled onto something unprecedented. They reported that the theta state caused people to "experience a new kind of body consciousness very much related to their total well-being." Physiologically the theta state seemed to bring "physical healing, physical regeneration." In the emotional domain, the theta state was "manifested in improved relationships with other people as well as greater tolerance, understanding, and love of oneself and of one's world." In the mental domain, the theta state produced "new and valid ideas of syntheses of ideas, not primarily by deduction, but springing by intuition from unconscious sources." All in all, it seemed as if there were something magic about the theta state. Working independently of the Greens, biofeedback researcher and clinician Dr. Thomas Budzynski also sensed something magic about the theta state. He conducted extensive research into the properties of theta, which he dubbed the "twilight state." People in theta, he found were hypersuggestible, as if in a hypnotic trance. They are also able to learn enormous amounts very quickly. Theta, Budzynski suggested, is the state in which "superlearning" takes place--when in theta, people are able to learn new languages, accept suggestions for changes in behaviors and attitudes, memorize vast amounts of information. Said Budzynski, "the hypnagogic state, the twilight state, between waking and sleep, has the properties of uncritical acceptance of verbal material, or almost any material it can process." "MIRACULOUS RESOLUTIONS" AT THE CROSSOVER POINT These findings about theta were exciting, but never became widely known. Then in 1989, Drs. Eugene Peniston and Paul Kulkosky of the University of Southern Colorado (who had learned some of their techniques from the Greens at the Menninger Foundation) conducted studies in which they used EEG biofeedback to train a group of chronic alcoholics to increase alpha and theta activity, while another group served as a control group. They discovered that the alpha-theta group showed an extraordinary recovery rate many orders of magnitude greater than the control group. More impressively, after thirteen months they showed "sustained prevention of relapse." (A further follow-up study three years later has showed the same sustained prevention of relapse.) And, in the most intriguing findings of all, the alpha-theta group showed a profound transformation of personality. Among the extraordinary changes in MMPI clinical scales noted in their subjects, Peniston and Kulkosky found significant increases in such qualities as warmth, abstract-thinking, stability, conscientiousness, boldness, imaginativeness and self-control, and significant decreases not only in depression, but also in anxiety and other problems. Overcoming addiction. Transforming personality. These were magic phrases. The Peniston studies emerged at just the right time. Years earlier, in 1978, Dr. James Hardt, of Langley Porter Psychiatric Institute, had published several papers documenting his EEG feedback research findings that alpha feedback training produced profound changes in personality traits, including dramatic reductions in anxiety (both state and trait anxiety), and changes in the same MMPI clinical scales documented over a decade later by Peniston and Kulkosky. But Hardt's while Hardt's message had aroused little interest, the Peniston studies emerged into the "morning after" the Reagan era's exaltation of selfishness and self indulgence, when concern with addictive behaviors and personality transformation had become subjects of urgent interest to millions of people: millions of people who were going to 12 step programs modeled on Alcoholics Anonymous to overcome their "addictions" to everything from sex to overeating to shopping, and who were seeking to transform their present addictive personality by stripping away their false masks and communicating with their "inner child." With its implied message that EEG alpha-theta feedback could help individuals overcome all sorts of addictive behavior patterns and find a happier, more integrated personality, the Peniston- Kulkosky work aroused enormous interest and excitement among biofeedback researchers and clinicians. Modifying and expanding upon the work of Peniston and Kulkosky, many researchers and clinicians have now begun using multi- channel "brain mapping" EEGs to explore in more detail what happens in the brain when it goes through these apparently transformational moments. What they have found is that when a subject becomes deeply relaxed, alpha brainwave activity increases, and slows down. As relaxation increases, the subject begins to produce more and more theta activity. As theta amplitude increases, alpha seems to slow further until it descends into theta. At that point, according to some researchers, at what the researchers are calling the "crossover point" between alpha and theta, the subjects experience important, emotionally loaded, even life transforming moments. These frequently consist of creative insights, vivid memories from childhood, or, in the case of the Vietnam vets suffering from Post-Traumatic Stress Syndrome (or adults who were abused as children), the emergence of suppressed or repressed experiences. Subjects consistently report these moments as profound, moving, life transforming, even spiritual moments. One of these clinicians, Houston therapist William Beckwith, has reported that in his clients the crossover point is "often accompanied by spontaneous surfacing of previously inaccessible memories, often from early childhood," as well as "the seemingly miraculous resolutions of complex psychological problems." THE MAGIC RHYTHM AND THE GATEWAY TO MEMORY Meanwhile, other scientists, intrigued by the fact that the theta state seemed to increase learning, and also seemed to produce frequent vivid memories, began investigating the relationship between theta and memory. They found that for memories to be formed the brain must undergo a process called Long Term Potentiation (LTP), which involves electrical and chemical changes in the neurons involved in storing memory. When LTP does not happen, information that enters the brain is not stored, but totally forgotten. Neurophysiologists Gary Lynch and associates of UC at Irvine, discovered that the key to LTP is theta brainwaves. "We have found the magic rhythm that makes LTP," said Dr. Lynch. "There's a magic rhythm, the theta rhythm." CHILDHOOD MEMORIES AND THETA As virtually everyone who uses a mind machine discovers, theta seems to trigger the sudden reliving or vivid remembering of long-forgotten childhood memories. One explanation for this link between theta and childhood is that, while adults rarely produce theta, children are in a theta state most of the time--up to the age of six or beyond, children produce mostly theta waves, and then the amount of theta progressively decreases as the child grows into adulthood. In other words, children spend most of their time in what we adults would call a trance-like, altered state of consciousness, and one that is extremely open and receptive, highly conducive to the learning of new information and the creation of memories. In recent years a large number of scientific studies have explored a phenomenon called "state bound" or "state dependent" learning. In essence, they have found that things experienced in one state (of consciousness) are far more easily remembered later when we are once again in that same state. Things learned when we're happy are remembered best when we're happy, what we learn when cold is remembered best when we're cold, and so on. This provides an explanation for the appearance of childhood memories to adults who are in theta. Children spent most of their time in the theta state. But as adults, we rarely experience a true theta state. Most of us have a few seconds of it as we fall asleep, and that's all. During those brief moments in theta we may experience sudden flashes of memory, vivid images, odd disconnected ideas, but we're quickly asleep. Virtually all of our memories from childhood, then, are state dependent--they're laid down while we're in one state, but it's a state that we almost never experience as adults. To remember them, we have to get back to the state in which they were first created. One of the characteristics of mind machines is that they are capable of putting people into the theta state and keeping them there for long periods of time while they remain awake. Mind machines can put us back into the childlike theta state. That means that all those memories, creative ideas, spontaneous images, and integrative experiences that occur during theta become available to our conscious mind--we become consciously aware of what had been stored in our unconscious mind, and we remember it when we emerge from the theta state. This is one of the reasons that psychologist Thomas Budzynski has called one type of mind machine "a facilitator of unconscious retrieval." THETA AND INSIGHT For thousands of years humans have been aware of the enormous creative values of the theta state. Budzynski notes that "Shamanistic and other primitive ceremonies often included procedures designed to produce these states. It was believed (and still is in certain cultures) that the dreamlike images elicited in the twilight state allowed the dreamer to foretell events, instruct as to healing procedures, and give important information." The 18th century mystic Emmanual Swedenborg wrote in detail about his own theta experiences and described ways of inducing them. The chemist Friedrich Kekule vividly described his state of "reverie" in which he suddenly saw a mental image of atoms forming a chain, and of snakes biting their tails, which led to his discovery that organic compounds occur in closed rings-- described as "the most brilliant piece of prediction to be found in the whole range of organic chemistry." There are countless stories of such moments of inspiration and creativity occurring when the thinker is nodding off to sleep, or wandering lonely as a cloud, gazing into the fire. All of them speak of the drowsiness, the relaxation, the vivid imagery appearing unexpectedly, that mark them as examples of the theta state. MAPPING THE BRAIN PATHS TO TRANSCENDENCE Meanwhile, other researchers have been using sophisticated EEGs with 20 or more electrodes, which permit them to monitor the activity of the entire cortex simultaneously, and present it visually in the form of colored "brain maps." These investigators, including F. Holmes Atwater, of the Monroe Institute, Dr. Ed Wilson of the Colorado Association for Psychophysiologic Research, and Dr. Julian Isaacs, have been able to observe the brain maps of numerous individuals as they move from ordinary waking consciousness into peak experience or transcendent brain states. They have found that in progressing toward transcendence, the brain goes through or produces several distinctive whole-brain patterns. RESTING STATE ALPHA. Normal waking consciousness, these researchers have found, is characterized by dominant beta activity, along with a lot of alpha activity in the rear part of the cortex. This back of the head alpha is called "resting- state-alpha." This alpha activity seems to be an "anchor," serving as a stabilizing force, linking us with our "normal" and familiar modes of mental processing. It's like the alpha observed in the early stages of Zen meditation. THE DISSOCIATIVE STATE. However, when subjects enter expanded states of consciousness, they lose awareness of the physical world, and reach a point at which, as Atwater describes it, "when non-physical phenomena constitute the whole field of perception; when there is no impression of being 'normally' in the physical body; when the physical body is asleep or fully entranced." This is what Atwater calls the Dissociative State. In the Dissociative State, resting-state-alpha disappears, and is replaced by high amplitude theta and delta activity, centered at the top of the head (the median of the central cortex). Interestingly this high amplitude theta and delta activity is synchronous. This dissociative state seems to be essentially what earlier researchers, such as the Greens, have been describing as the Theta state, and is equivalent to the state reached by experienced Zen meditators as they sink downward past alpha. It also seems to offer access to what has been called the unconscious mind, or the personal unconscious. THE TRANSCENDENT STATE. Beyond the dissociative state is the state Atwater calls transcendence. In this state, individuals move beyond their own ego, beyond the personal unconscious mind, into a peak state of universal awareness. As Atwater observes, "Experiences in this state are many times ineffable and cannot be explained or described in words. Experiences in this realm are more than passive diversions. Their creative power can change the very nature of the participants' reality." As they observe the transition from dissociation to transcendence on their EEG brain mappers, these researchers such as Atwater have found something very odd occurs. First, the high amplitude and synchronous theta and delta activity of the dissociative state continues. However, it is accompanied by bursts of very high beta (or gamma) activity in the temporal regions of the brain (in the area of the temples). INDUCING TRANSCENDENT EXPERIENCES AND UFO ABDUCTIONS These findings become even more intriguing--and lead to even wilder speculations--in light of the amazing findings of Dr. Michael Persinger of Laurentian University. He was fascinated by evidence that people who had experiences of being abducted by UFOs, and a variety of other sorts of extraordinary or transcendent experiences, were influenced by changes in the earth's magnetic field. He began placing electromagnets at the temples of subjects and pulsing them at various frequencies. To his amazement, he found that his subjects had transcendent or extraordinary experiences. Even when subjects knew they were seated in a laboratory, with pulsed electromagnetic fields at their temples, they would emerge with realistic reports of being abducted by UFOs, having out of body experiences, communicating with God and so on. Apparently, high frequency, high amplitude activation of the temporal regions of the brain is linked with extraordinary experiences. WHOLE BRAIN POWER All the unusual abilities that some people are able to manifest . . . are associated with changes in the EEG pattern toward a more bilaterally symmetrical and integrated form. . . . My research has led me to believe that the 'higher mind,' on the neuropsychological level, was what Carl Jung called transcendent function, and that it was manifested by the integration of left- and right-hemisphere function. C. Maxwell Cade The Awakened Mind SYNCHRONY: MAXIMUM EFFICIENCY OF INFORMATION TRANSPORT One of the ways scientists investigated peak brain states was to bring skilled meditators into the laboratory, paste electrodes all over their skull, give them a button to press to signal when they were "there," and record the activity on an EEG. They found that when meditators were in their peak state, the brain wave activity throughout the whole brain fell into a state they called "synchrony." Now whole brain wave synchrony is a very specific state. It does not mean simply that the whole brain produces dominant waves of the same frequency, such as 10 Hz alpha. If you visualize brain waves as a series of peaks and valleys, then synchrony occurs when brainwaves reach their peak at the same time. When brain waves are "in sync," their power increases (think of two waves joining together: they produce a larger wave). So, when researchers noted that meditators produced whole brain synchrony, what they saw was also an enormous increase in power or amplitude throughout the whole brain. What are the effects of synchrony? One of the leading researchers into brain wave synchrony, Dr. Lester Fehmi, of the Princeton Biofeedback Research Institute, points out that "synchrony represents the maximum efficiency of information transport through the whole brain." This means that brain wave synchrony produces a sharp increase in the effects of various brain wave states. Fehmi notes that "phase synchrony . . . is observed to enhance the magnitude and occurrence of the subjective phenomena associated with alpha and theta" and of beta as well. Thus, for example, the phenomena associated with theta, such as vivid imagery, access to memory, spontaneous creative insights, and integrative experiences, all are enhanced in "magnitude and occurrence" by whole brain synchrony. Some of the researchers and clinicians who have been using EEG "crossover point" training now believe that part of the extraordinary transformational powers of moving through that critical point where alpha is superceded by theta are a result of brain wave synchrony. William Beckwith observes that "The production of synchronized, coherent electromagnetic energy by the human brain at a given frequency leads to a 'laser-like' condition increasing the amplitude and strength of the brain waves." He notes that "as clients learn to increase their alpha amplitude and produce theta waves without losing consciousness, a critical point is reached when theta amplitude begins to exceed alpha amplitude. Cross-lateral brainwave synchronization also increases, creating a more coherent system. At this point, there are profound alterations in client mood and behavior," including "the seemingly miraculous resolution of complex psychological problems. . . . There is a sudden re-ordering of the entire personality in ways that cannot be readily explained by other models." BRAINWAVE SYMMETRY AND EMOTIONS In addition to synchrony, there is now evidence that whole-brain symmetry (i.e. the relative balance of EEG activity between the right and left hemisphere) is an important key to peak brain functioning. The clear link between left side of the face activity and sadness and right side of the face activity and happiness has recently been scientifically documented. In some of the studies the researchers simply asked the subjects to vigorously contract either the right or left sides of their face. They found strong evidence (in over 90% of the subjects) that contorting one side of the face produces emotions, with the left side of the face producing sadness and negative emotions, right side producing positive emotions. But why does facial asymmetry affect emotions? Several groups of scientists working independently have found that "EEG asymmetry in anterior regions of the brain" can predict and diagnose emotional states and emotional styles. That is, people with more activity in the left frontal cortex than in the right tend to have a more cheerful and positive temperament--they are self- confident, outgoing, interested in people and external events, resilient, optimistic and happy. On the other hand, people whose EEG shows more activity in the right frontal cortex than in the left tend to be more sad and negative in their outlook--they see the world as more stressful and threatening, are more suspicious of people, and feel far more fear, disgust, anxiety, self-blame and hopelessness than the left-activated group. In one study, researchers found that these brainwave patterns could predict "affective responses to emotion elicitors," i.e. how the subjects would react to film clips that were preselected to elicit positive or negative emotions (the positive film clips were of a puppy at play, or an amusing gorilla taking a bath; the negative clips showed gory surgery scenes). Those with more right-frontal activity showed far more powerful negative emotions, such as fear and disgust, when viewing the surgical scenes than did those with more left-frontal activity. On the other hand, those with more left-frontal activity derived far more pleasure and delight from the positive films than did the gloomy right-frontal subjects. In other words, things that might produce delight and euphoria in some people will leave others cold, unmoved, or even suspicious; and things that some folks find only mildly unpleasant will fill others with enormous revulsion, disgust and horror. And, astonishingly, these responses can be predicted, simply by observing their brainwave patterns! THE CRY-BABY BIOMARKER & DEPRESSION IN THE BRAIN There is also evidence that these brainwave asymmetries may be linked to depression. The researchers tested the EEGs of a group of normal subjects who had never been treated for depression, and a group of subjects who had been previously depressed and later successfully treated for depression. They found that the previously depressed subjects had far less left-frontal activity, and far more right-frontal activity, than those who had never been depressed. A recent brainmapping study of depressive patients by C. Norman Shealy, M.D., Ph.D. at the Shealy Institute in Springfield, Missouri, revealed that 100 percent of the patients had abnormal brainwave activity, with the most common finding being "Asymmetry of the two hemispheres with right hemisphere dominance." Another study revealed that patients who had just been diagnosed with depression and were about to begin treatment had less left- frontal activity than non-depressed subjects. "You find similar brain patterns in people who are depressed, or who have recovered from depression, and in normal people who are prone to bad moods," said one of the researchers, Dr. John Davidson, of the University of Wisconsin, Madison. "We suspect that people with this brain activity pattern are at high risk for depression." There is even evidence that these brainwave patterns and emotional "styles" may be hereditary or genetically-influenced. Davidson has studied the behavior and the EEG patterns of 10- month old infants during a brief period (one minute) of separation from their mothers, and found that "those infants who cried in response to maternal separation showed greater right- frontal activation during the preceding baseline period compared with infants who did not cry." Observed Davidson, "Every single infant who cried had more right frontal activation. Every one who did not had more activity on the left." He concluded that "Frontal activation asymmetry may be a state-independent marker for individual differences in threshold of reactivity to stressful events and vulnerability to particular emotions." TURNING UP THE JUICE IN THE JOLLY LOBE The next step, of course, is to move from simply observing the existing brainwave patterns and using them for diagnosis to actively developing strategies and techniques for altering the patterns. As Dr. Davidson pointed out, "If you learn to regulate your negative feelings better, it may turn out that you have also learned to turn up the activity in your left frontal lobe." FINDING THE POINT OF BALANCE All of this research casts new light on the well known differences between the right hemisphere and the left hemisphere. In most people, the left hemisphere is superior in processing verbal material while the right hemisphere shows superiority in handling visual/spatial information. Studies by neuroscientist David Shannahoff-Khalsa of Salk Institute for Biological Sciences indicate that hemispheric dominance is constantly shifting back and forth from right to left hemispheres, with average cycles of 90 to 120 minutes. Other scientists have reached similar conclusions by testing subjects at regular intervals on verbal (left-hemisphere) and spatial (right hemisphere) tasks. They found that when verbal ability was high, spatial ability was low, and vice versa. This discovery, Shanhnahoff-Khalsa points out, "suggests we can exert more control over our day-to-day mental functioning. For example, certain cognitive functions, such as language skills, mathematics and other rational processes that are thought to be primarily localized in the left hemisphere" might be boosted by "forcibly altering" our cerebral dominance. And in the same way we might "accentuate the creativity that is thought to be characteristic of right-hemisphere dominance," through similar forcible altering. However, one key finding that has emerged from these studies of shifts in hemispheric dominance is that each time dominance shifts from one hemisphere to the other there is a point at which dominance is equally balanced between both hemispheres. And, the researchers have found, it is at this point, and during this short period of time, when the brain is at its most fertile and creative. The truth is that two brains are better than one. While each hemisphere seems to have its specific beneficial capacities, each has its downside as well. The right hemisphere has been linked with visual/spatial skills, emotional and musical sensitivities, and intuitive, timeless, imagistic thought, but also with depression, suspicion, sadness, hostility, paranoia and negative emotions. The left hemisphere has been linked with verbal skills, orientation in time, rational, logical, analytical thinking, happiness and positive emotions. But mere analytical thought, without intuitive, emotional, imagistic, time-free insights, is rigid and uncreative. There is a reason why we have two hemispheres: they are both necessary and complementary, and they function best when they are functioning together, synergistically. This is an obvious point of much of the research we have looked at so far. EEG studies of meditators clearly demonstrated that peak states were characterized by increased synchrony and symmetry between the hemispheres. Neuroscientist Jerre Levy, of the University of Chicago, a leading authority in the field of hemispheric lateralization research, believes that, "Normal brains are built to be challenged. They operate at optimal levels only when cognitive processing requirements are of sufficient complexity to activate both hemispheres. Great men and women of history did not merely have superior intellectual capacities within each hemisphere. They had phenomenal levels of emotional commitments, motivation, attentional capacity--all of which reflected the highly integrated brain in action." It's evident that a "highly integrated brain," a brain in which both hemispheres are functioning in symmetry, synchrony, harmony and unity, is a key to peak states and peak human performance. But throughout history, humans have found that it's not easy to intentionally bring both hemispheres to bear simultaneously. Much of our lives we spend swinging back and forth between left dominant states and right dominant states. This is where EEG feedback presents revolutionary possibilities. For research has shown that users can quickly learn alter hemispheric asymmetry and imbalance and produce more symmetrical, balanced brainwave patterns. And, the evidence suggests, by doing so they can assist in producing the peak performance states associated with whole- brain integration. LINKING EEG FEEDBACK WITH LIGHT ENTRAINMENT Tuning into Stored Traumas. In Megabrain Report Vol. 1, No. 2 (1990) I discussed the enormous potentials of "an entirely new generation of devices that combine sound and light stimulation with biofeedback capabilities. . . . [which] enable the machine to read the user's dominant brainwave activity, and then provide the optimal frequency of sound and light to entrain brainwave activity toward the 'target' frequency." But even in my wildest speculations I could never have predicted the extraordinary results some clinicians are now attaining using such an EEG--LS feedback loop. Psychotherapist Len Ochs, Ph.D., had long experience of using EEG and other types of biofeedback. He had studied with interest the succes of Peniston and Kulkosky with the alpha/theta training. While exploring the Peniston Protocol in his own therapy practice, Ochs also became intrigued with the potential benefits of linking EEG feedback with LS machines, so that the frequency of the light flashes was directly linked to the brainwave activity of the client. It made sense that by entraining brainwaves downward toward a theta "target frequency" he could speed up the lengthy feedback training procedure used by Peniston and Kulkosky. Ochs began using EEG-LS stimulation, which he first called EEG Entrainment Feedback (EEF), and found that as clients moved downward or upward into certain frequency ranges--which were different for each client--many of them would begin to experience discomfort, anxiety or nausea. He found that those who were most hypersensitive were the ones who had the most symptoms. They were, he concluded, hypersensitive at certain frequencies. Ochs used the LS to help gently entrain the clients' brainwaves into the uncomfortable frequency range. He found that as they willingly relaxed and entered that frequency range, they underwent sudden releases of traumatic material. What was even more exciting was that these sudden releases had powerful, life- transforming effects. In the process, their symptoms disappeared, and they became desensitized to the lights. It was as if the therapeutic effects of months or even years of traditional "talk" psychotherapy had been compressed into minutes. The Brainwave Rollercoaster. In his explorations of EEF, Ochs experimented with designing the computer program that linked the EEG with the LS to alternately speed up brainwaves and then slow them down, reversing direction every minute or two, and producing a sort of rollercoaster effect. He found that when he did this many clients experienced an even more rapid release of symptoms and problems. It appeared that as clients learned to move through troublesome frequencies, they released progressively more and more of the stored traumatic material. In effect, Ochs concluded, the process was not really entraining brainwaves, but constantly disentraining brainwaves, constantly nudging or pulling dominant brainwave activity out of its habitual "grooves" and responses. In doing this, it seemed to have the effect of "limbering up" the brain, increasing its flexibility, its capacity to move freely up and down through various frequency ranges. He concluded that EDF was working by optimizing EEG. My own experiences with Ochs's EEG-LS link, which he now calls EEG Disentrainment Feedback (EDF), and my discussions with others who have experienced it, have convinced me that this linking of brainwaves with light stimulation produces a profound brain- altering effect quite different from either EEG feedback of LS stimulation alone. BOOSTING BRAINPOWER WITH EEG Out of all the EEG feedback research, one intriguing fact has emerged: EEG biofeedback training clearly increases human brain power, including increases in IQ and in other types of intelligence and achievements. These increases seem to result not only from the altered brainwave states that are the result of EEG biofeedback training, but also from actual physiological brain growth in response to the challenge and stimulation of learning to use the mind tools--i.e. the "enriched environment" effect. Among those who have found increased IQ in response to biofeedback training are professors Harold Russell, Ph.D. and John Carter, Ph.D. of the University of Houston. They have concluded: "Learning to self-regulate one's ongoing EEG frequency and amplitude activity is a complex and time consuming task. It requires a highly focused concentration on and the awareness of the brain's activity and the repetition of the patterns of mental activity that produce the desired frequency and amplitude. . . . When the task of control of EEG activity is adequately learned and sufficiently practiced, the functioning of the human brain improves measurably, e.g. . . . scores on standardized tests of achievements or intelligence increase by 12 to 20 points." In other words, there seems to be something inherently brain- expanding about learning to manipulate your brainwaves. One valuable but inexpensive technique for manipulating your brainwaves is reading. I have no doubts that there is something inherently brain-expanding about reading. This issue of Megabrain Report contains a compendium of articles from many of the leading figures in EEG feedback, dealing with all of the issues touched on above. I cannot guarantee that reading them will increase your IQ by 12 to 20 points, but I can guarantee with total confidence that they will expand your mind. Read on.