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Hypnosis effect on brain ‘real’

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Hypnosis has a “very real” effect that can be picked up on brain scans, say Hull University researchers. An imaging study of hypnotised participants showed decreased activity in the parts of the brain linked with daydreaming or letting the mind wander. The same brain patterns were absent in people who had the tests but who were not susceptible to being hypnotised. One psychologist said the study backed the theory that hypnosis “primes” the brain to be open to suggestion. Hypnosis is increasingly being used to help people stop smoking or lose weight and advisers recently recommended its use on the NHS to treat irritable bowel syndrome. It is not the first time researchers have tried to use imaging studies to monitor brain activity in people under hypnosis. But the Hull team said these had been done while people had been asked to carry out tasks, so it was not clear whether the changes in the brain were due to the act of doing the task or an effect of hypnosis. In the latest study, the team first tested how people responded to hypnosis and selected 10 individuals who were “highly suggestible” and seven people who did not really respond to the technique other than becoming more relaxed. The participants were asked to do a task under hypnosis, such as listening to non-existent music, but unknown to them the brain activity was being monitored in the rest periods in between tasks, the team reported in the journal Consciousness and Cognition. Default mode. In the “highly suggestible” group there was decreased activity in the part of the brain involved in daydreaming or letting the mind wander – also known as the “default mode” network. One suggestion of how hypnosis works, supported by the results, is that shutting off this activity leaves the brain free to concentrate on other tasks.Study leader Dr William McGeown, a lecturer in the department of psychology, said theresults were unequivocal because they only occurred in the highly suggestible subjects. “This shows that the changes were due to hypnosis and not just simple relaxation. “Our study shows hypnosis is real.” Dr Michael Heap, a clinical forensic psychologist based in Sheffield, said the experiment was unique in showing brain patterns supporting the theory that hypnosis works by “priming” the subject to respond more effectively to suggestions. “Importantly the data confirm that relaxation is not a critical factor. “The limited data from this experiment suggest that this pattern of activity then dissipates (at least to some extent) once the subjects start to engage in the suggestions that follow.”

But he said the small study, which needed repeating in other populations, did not prove that people being hypnotised were in an actual “trance”. “This shows that the changes were due to hypnosis and not just simple relaxation”.Dr William McGeown, study leader. news from bbc.co.uk  –  Hypnosis is a mental state (state theory) or set of attitudes (non-state theory) usually induced by a procedure known as a hypnotic induction, which is commonly composed of a series of preliminary instructions and suggestions. Hypnotic suggestions may be delivered by a hypnotist in the presence of the subject, or may be self-administered (“self-suggestion” or “autosuggestion”). The use of hypnotism for therapeutic purposes is referred to as “hypnotherapy”. The words ‘hypnosis’ and ‘hypnotism’ both derive from the term “neuro-hypnotism” (nervous sleep) coined by the Scottish physician and surgeon James Braid around 1841. Braid based his practice on that developed by Franz Anton Mesmer and his followers (“Mesmerism” or “animal magnetism”), but differed in his theory as to how the procedure worked. Although a popular misconception is that hypnosis is a form of unconsciousness resembling sleep, contemporary research suggests that it is actually a wakeful state of focused attention and heightened suggestibility, with diminished peripheral awareness. In the first book on the subject, Neurypnology (1843), Braid described “hypnotism” as a state of physical relaxation accompanied and induced by mental concentration (“abstraction”). Skeptics point out the difficulty distinguishing between hypnosis and the placebo effect, proposing that the state called hypnosis is so heavily reliant upon the effects of suggestion and belief that it would be hard to imagine how a credible placebo control could ever be devised for a hypnotism study. Many researchers and clinicians would object however that hypnotic suggestion is explicitly intended to make use of the placebo effect, e.g., Irving Kirsch has proposed a definition of hypnosis as a “non-deceptive mega-placebo”, i.e., a method which openly makes use of suggestion and employs methods to amplify its effects. Definitions; The earliest definition of hypnosis was given by Braid, who coined the term “hypnotism” as an abbreviation for “neuro-hypnotism”, or nervous sleep, which he opposed to normal sleep, and defined as: a peculiar condition of the nervous system, induced by a fixed and abstracted attention of the mental and visual eye, on one object, not of an exciting nature.

Braid elaborated upon this brief definition in a later work:  the real origin and essence of the hypnotic condition, is the induction of a habit of abstraction or mental concentration, in which, as in reverie or spontaneous abstraction, the powers of the mind are so much engrossed with a single idea or train of thought, as, for the nonce, to render the individual unconscious of, or indifferently conscious to, all other ideas, impressions, or trains of thought. The hypnotic sleep, therefore, is the very antithesis or opposite mental and physical condition to that which precedes and accompanies common sleep. Braid therefore defined hypnotism as a state of mental concentration which often led to a form of progressive relaxation termed “nervous sleep”. Later, in his The Physiology of Fascination (1855), Braid conceded that his original terminology was misleading, and argued that the term “hypnotism” or “nervous sleep” should be reserved for the minority (10%) of subjects who exhibited amnesia, substituting the term “monoideism”, meaning concentration upon a single idea, as a description for the more alert state experienced by the others. A contemporary account of hypnosis, derived from academic psychology, was provided in 2005, when the Society for Psychological Hypnosis, Division 30 of the American Psychological Association (APA), published the following formal definition:    The American Psychological Association’s Definition of Hypnosis; Hypnosis typically involves an introduction to the procedure during which the subject is told that suggestions for imaginative experiences will be presented. The hypnotic induction is an extended initial suggestion for using one’s imagination, and may contain further elaborations of the introduction. A hypnotic procedure is used to encourage and evaluate responses to suggestions. When using hypnosis, one person (the subject) is guided by another (the hypnotist) to respond to suggestions for changes in subjective experience, alterations in perception, sensation, emotion, thought or behaviour. Persons can also learn self-hypnosis, which is the act of administering hypnotic procedures on one’s own. If the subject responds to hypnotic suggestions, it is generally inferred that hypnosis has been induced. Many believe that hypnotic responses and experiences are characteristic of a hypnotic state. While some think that it is not necessary to use the word “hypnosis” as part of the hypnotic induction, others view it as essential.

Details of hypnotic procedures and suggestions will differ depending on the goals of the practitioner and the purposes of the clinical or research endeavor. Procedures traditionally involve suggestions to relax, though relaxation is not necessary for hypnosis and a wide variety of suggestions can be used including those to become more alert. Suggestions that permit the extent of hypnosis to be assessed by comparing responses to standardised scales can be used in both clinical and research settings. While the majority of individuals are responsive to at least some suggestions, scores on standardised scales range from high to negligible. Hypnosis is normally preceded by a “hypnotic induction” technique. Traditionally this was interpreted as a method of putting the subject into a “hypnotic trance”; however subsequent “nonstate” theorists have viewed it differently, as a means of heightening client expectation, defining their role, focusing attention, etc. There are an enormous variety of different induction techniques used in hypnotism. However, by far the most influential method was the original “eye-fixation” technique of Braid, also known as “Braidism”. Many variations of the eye-fixation approach exist, including the induction used in the Stanford Hypnotic Susceptibility Scale (SHSS), the most widely-used research tool in the field of hypnotism. Braid’s original description of his induction is as follows:    James Braid’s Original Eye-Fixation Hypnotic Induction Method;  Take any bright object (I generally use my lancet case) between the thumb and fore and middle fingers of the left hand; hold it from about eight to fifteen inches from the eyes, at such position above the forehead as may be necessary to produce the greatest possible strain upon the eyes and eyelids, and enable the patient to maintain a steady fixed stare at the object. The patient must be made to understand that he is to keep the eyes steadily fixed on the object, and the mind riveted on the idea of that one object. It will be observed, that owing to the consensual adjustment of the eyes, the pupils will be at first contracted: they will shortly begin to dilate, and after they have done so to a considerable extent, and have assumed a wavy motion, if the fore and middle fingers of the right hand, extended and a little separated, are carried from the object towards the eyes, most probably the eyelids will close involuntarily, with a vibratory motion.

If this is not the case, or the patient allows the eyeballs to move, desire him to begin anew, giving him to understand that he is to allow the eyelids to close when the fingers are again carried towards the eyes, but that the eyeballs must be kept fixed, in the same position, and the mind riveted to the one idea of the object held above the eyes. It will generally be found, that the eyelids close with a vibratory motion, or become spasmodically closed.Braid himself later acknowledged that the hypnotic induction technique was not necessary in every case and subsequent researchers have generally found that on average it contributes less than previously expected to the effect of hypnotic suggestions (q.v., Barber, Spanos & Chaves, 1974). Many variations and alternatives to the original hypnotic induction techniques were subsequently developed. However, exactly 100 years after Braid introduced the method, another expert could still state: “It can be safely stated that nine out of ten hypnotic techniques call for reclining posture, muscular relaxation, and optical fixation followed by eye closure.” Suggestion; When Braid first introduced hypnotism, he did not use the term “suggestion” but referred instead to the act of focusing the conscious mind of the subject upon a single dominant idea. Braid’s main therapeutic strategy involved stimulating or reducing physiological functioning in different regions of the body. In his later works, however, Braid placed increasing emphasis upon the use of a variety of different verbal and non-verbal forms of suggestion, including the use of “waking suggestion” and self-hypnosis. Subsequently, Hippolyte Bernheim shifted the emphasis from the physical state of hypnosis on to the psychological process of verbal suggestion. I define hypnotism as the induction of a peculiar psychical condition which increases the susceptibility to suggestion. Often, it is true, the sleep that may be induced facilitates suggestion, but it is not the necessary preliminary. It is suggestion that rules hypnotism. Bernheim’s conception of the primacy of verbal suggestion in hypnotism dominated the subject throughout the twentieth century, leading some authorities to declare him the father of modern hypnotism (Weitzenhoffer, 2000). Contemporary hypnotism makes use of a wide variety of different forms of suggestion including: direct verbal suggestions, “indirect” verbal suggestions such as requests or insinuations, metaphors and other rhetorical figures of speech, and non-verbal suggestion in the form of mental imagery, voice tonality, and physical manipulation.

A distinction is commonly made between suggestions delivered “permissively” or in a more “authoritarian” manner. Some hypnotic suggestions are intended to bring about immediate responses, whereas others (post-hypnotic suggestions) are intended to trigger responses after a delay ranging from a few minutes to many years in some reported cases.Consciousness vs. unconscious mind. Some hypnotists conceive of suggestions as being a form of communication directed primarily to the subject’s conscious mind, whereas others view suggestion as a means of communicating with the “unconscious” or “subconscious” mind. These concepts were introduced into hypnotism at the end of 19th century by Sigmund Freud and Pierre Janet. The original Victorian pioneers of hypnotism, including Braid and Bernheim, did not employ these concepts but considered hypnotic suggestions to be addressed to the subject’s conscious mind. Indeed, Braid actually defines hypnotism as focused (conscious) attention upon a dominant idea (or suggestion). Different views regarding the nature of the mind have led to different conceptions of suggestion. Hypnotists who believed that responses are mediated primarily by an “unconscious mind”, like Milton Erickson, made more use of indirect suggestions, such as metaphors or stories, whose intended meaning may be concealed from the subject’s conscious mind. The concept of subliminal suggestion also depends upon this view of the mind. By contrast, hypnotists who believed that responses to suggestion are primarily mediated by the conscious mind, such as Theodore Barber and Nicholas Spanos tended to make more use of direct verbal suggestions and instructions.  ideo motor response. The first neuro-psychological theory of hypnotic suggestion was introduced early on by James Braid who adopted his friend and colleague William Carpenter’s theory of the ideo-motor reflex response to account for the phenomenon of hypnotism. Carpenter had observed from close examination of everyday experience that under certain circumstances the mere idea of a muscular movement could be sufficient to produce a reflexive, or automatic, contraction or movement of the muscles involved, albeit in a very small degree. Braid extended Carpenter’s theory to encompass the observation that a wide variety of bodily responses, other than muscular movement, can be thus affected, e.g., the idea of sucking a lemon can automatically stimulate salivation, a secretory response.

Braid therefore adopted the term “ideo-dynamic”, meaning “by the power of an idea” to explain a broad range of “psycho-physiological” (mind-body) phenomena. Braid coined the term “mono-ideodynamic” to refer to the theory that hypnotism operates by concentrating attention on a single idea in order to amplify the ideo-dynamic reflex response. Variations of the basic ideo-motor or ideo-dynamic theory of suggestion have continued to hold considerable influence over subsequent theories of hypnosis, including those of Clark L. Hull, Hans Eysenck, and Ernest Rossi. It should be noted that in Victorian psychology, the word “idea” encompasses any mental representation, e.g., including mental imagery, or memories, etc. Post-hypnotic suggestion. It has been alleged post-hypnotic suggestion can be used to change people’s behaviour after emerging from hypnosis. One author wrote that “a person can act, some time later, on a suggestion seeded during the hypnotic session”. A hypnotherapist told one of his patients, who was also a friend: ‘When I touch you on the finger you will immediately be hypnotised.’ Fourteen years later, at a dinner party, he touched him deliberately on the finger and his head fell back against the chair.” Hypnotic susceptibility. Braid made a rough distinction between different stages of hypnosis which he termed the first and second conscious stage of hypnotism; he later replaced this with a distinction between “sub-hypnotic”, “full hypnotic”, and “hypnotic coma” stages. Jean-Martin Charcot made a similar distinction between stages named somnambulism, lethargy, and catalepsy. However, Ambroise-Auguste Liébeault and Bernheim introduced more complex hypnotic “depth” scales, based on a combination of behavioural, physiological and subjective responses, some of which were due to direct suggestion and some of which were not. In the first few decades of the 20th century, these early clinical “depth” scales were superseded by more sophisticated “hypnotic susceptibility” scales based on experimental research. The most influential were the Davis-Husband and Friedlander-Sarbin scales developed in the 1930s. Andre Weitzenhoffer and Ernest R. Hilgard developed the Stanford Scale of Hypnotic Susceptibility in 1959, consisting of 12 suggestion test items following a standardised hypnotic eye-fixation induction script, and this has become one of the most widely-referenced research tools in the field of hypnosis. Soon after, in 1962, Ronald Shor and Emily Carota Orne developed a similar group scale called the Harvard Group Scale of Hypnotic Susceptibility (HGSHS).

Whereas the older “depth scales” tried to infer the level of “hypnotic trance” based upon supposed observable signs, such as spontaneous amnesia, most subsequent scales measure the degree of observed or self-evaluated responsiveness to specific suggestion tests, such as direct suggestions of arm rigidity (catalepsy). Precursors; According to his writings, Braid began to hear reports concerning the practices of various Oriental meditation techniques immediately after the publication of his major book on hypnotism, Neurypnology (1843). Braid first discusses hypnotism’s historical precursors in a series of articles entitled Magic, Mesmerism, Hypnotism, etc., Historically & Physiologically Considered. He draws analogies between his own practice of hypnotism and various forms of Hindu yoga meditation and other ancient spiritual practices. Braid’s interest in meditation really developed when he was introduced to the Dabistān-i Mazāhib, the “School of Religions”, an ancient Persian text describing a wide variety of Oriental religious practices. Last May, a gentleman residing in Edinburgh, personally unknown to me, who had long resided in India, favored me with a letter expressing his approbation of the views which I had published on the nature and causes of hypnotic and mesmeric phenomena. In corroboration of my views, he referred to what he had previously witnessed in oriental regions, and recommended me to look into the “Dabistan,” a book lately published, for additional proof to the same effect. On much recommendation I immediately sent for a copy of the “Dabistan”, in which I found many statements corroborative of the fact, that the eastern saints are all self-hypnotisers, adopting means essentially the same as those which I had recommended for similar purposes. Although he disputed the religious interpretation given to these phenomena throughout this article and elsewhere in his writings, Braid seized upon these accounts of Oriental meditation as proof that the effects of hypnotism could be produced in solitude, without the presence of a magnetiser, and therefore saw this as evidence that the real precursor of hypnotism was to be sought in the ancient practices of meditation rather than in the more recent theory and practice of Mesmerism. As he later wrote: In as much as patients can throw themselves into the nervous sleep, and manifest all the usual phenomena of Mesmerism, through their own unaided efforts, as I have so repeatedly proved by causing them to maintain a steady fixed gaze at any point, concentrating their whole mental energies on the idea of the object looked at; or that the same may arise by the patient looking at the point of his own finger, or as the Magi of Persia and Yogi of India have practised for the last 2,400 years, for religious purposes, throwing themselves into their ecstatic trances by each maintaining a steady fixed gaze at the tip of his own nose; it is obvious that there is no need for an exoteric influence to produce the phenomena of Mesmerism.

The great object in all these processes is to induce a habit of abstraction or concentration of attention, in which the subject is entirely absorbed with one idea, or train of ideas, whilst he is unconscious of, or indifferently conscious to, every other object, purpose, or action. Franz Mesmer (1734-1815) believed that there was a magnetic force or “fluid” within the universe which influenced the health of the human body. He experimented with magnets to influence this field and so cause healing. By around 1774 he had concluded that the same effects could be created by passing the hands, at a distance, in front of the subject’s body, referred to as making “Mesmeric passes.” The word mesmerize originates from the name of Franz Mesmer; and was intentionally used to separate its users from the various “fluid” and “magnetic” theories embedded within the label “magnetism”. In 1784, at the request of King Louis XVI, a series of French scientific committees, one of which included the American ambassador to France, Benjamin Franklin, scrutinized Mesmer’s theories. They also investigated the practices of a disaffected student of Mesmer, one Charles d’Eslon (1750-1786), and despite the fact that they accepted that Mesmer’s results were valid, their placebo-controlled experiments following d’Eslon’s practices convinced them that Mesmerism’s were most likely due to belief and imagination rather than to any sort of invisible energy (“animal magnetism”) transmitted from the body of the Mesmerist. In other words, despite accepting that Mesmer’s practices seemed to have efficacy, both committees totally rejected all of Mesmer’s theories.  James Braid (physician); Following the French committee’s findings, in his Elements of the Philosophy of the Human Mind (1827), Dugald Stewart, an influential academic philosopher of the “Scottish School of Common Sense”, encouraged physicians to salvage elements of Mesmerism by replacing the supernatural theory of “animal magnetism” with a new interpretation based upon “common sense” laws of physiology and psychology. Braid quotes the following passage from Stewart: It appears to me, that the general conclusions established by Mesmer’s practice, with respect to the physical effects of the principle of imagination are incomparably more curious than if he had actually demonstrated the existence of his boasted science:

nor can I see any good reason why a physician, who admits the efficacy of the moral agents employed by Mesmer, should, in the exercise of his profession, scruple to copy whatever processes are necessary for subjecting them to his command, any more than that he should hesitate about employing a new physical agent, such as electricity or galvanism. In Braid’s day, the Scottish School of Common Sense provided the dominant theories of academic psychology and Braid refers to other philosophers within this tradition throughout his writings. Braid therefore revised the theory and practice of Mesmerism and developed his own method of “hypnotism” as a more rational and “common sense” alternative.     It may here be requisite for me to explain, that by the term Hypnotism, or Nervous Sleep, which frequently occurs in the following pages, I mean a peculiar condition of the nervous system, into which it may be thrown by artificial contrivance, and which differs, in several respects, from common sleep or the waking condition. I do not allege that this condition is induced through the transmission of a magnetic or occult influence from my body into that of my patients; nor do I profess, by my processes, to produce the higher  phenomena of the Mesmerists. My pretensions are of a much more humble character, and are all consistent with generally admitted principles in physiological and psychological science. Hypnotism might therefore not inaptly be designated, Rational Mesmerism, in contra-distinction to the Transcendental Mesmerism of the Mesmerists. Despite briefly toying with the name “rational Mesmerism”, Braid ultimately emphasised his approach’s uniqueness, carrying out informal experiments throughout his career to refute the arguments invoking supernatural practices, and demonstrate instead the role of ordinary physiological and psychological processes such as suggestion and focused attention in producing the observed effects. Braid worked very closely with his friend and ally the eminent physiologist Professor William Benjamin Carpenter an early neuro-psychologist, who introduced the “ideo-motor reflex” theory of suggestion. Carpenter had observed examples of expectation and imagination apparently influencing involuntarily muscle movement. A classic example of the ideo-motor principle in action is the so-called “Chevreul pendulum” (named after Michel Eugène Chevreul). Chevreul claimed that pendulum can be made to swing by appropriate concentration alone.

Braid soon assimilated Carpenter’s observations into his own theory, realising that the effect of focusing attention was to enhance the ideo-motor reflex response. Braid extended Carpenter’s theory to encompass the influence of the mind upon the body more generally, beyond the muscular system, and therefore referred to the “ideo-dynamic” response and coined the term “psycho-physiology” to refer to the study of general mind/body interaction. In his later works, Braid reserved the term “hypnotism” for cases in which subjects entered a state of amnesia resembling sleep. For the rest, he spoke of a “mono-ideodynamic” principle to emphasise that the eye-fixation induction technique worked by narrowing the subject’s attention to a single idea or train of thought (“monoideism”which amplified the effect of the consequent “dominant idea” upon the subject’s body by means of the ideo-dynamic principle.) Hysteria vs. suggestion; For several decades, Braid’s work became more influential abroad than in his own country, except for a handful of followers, most notably Dr. John Milne Bramwell. The eminent neurologist Dr. George Miller Beard took Braid’s theories to America. Meanwhile his works were translated into German by Wilhelm T. Preyer, Professor of Physiology at Jena University. The psychiatrist Albert Moll subsequently continued German research, publishing Hypnotism in 1889. France became the focal point for the study after the eminent neurologist Dr. Étienne Eugène Azam presented Braid’s research to the French Academy of Sciences. Azam also translated Braid’s last manuscript (On Hypnotism, 1860) into French. At the request of Azam, Paul Broca, and others, the French Academy of Science, who had examined Mesmerism in 1784, examined Braid’s writings shortly after his demise. Azam’s enthusiasm for hypnotism influenced Ambroise-Auguste Liébeault, a country doctor. Hippolyte Bernheim discovered Liébeault’s enormously popular group hypnotherapy clinic and subsequently became an influential hypnotist. The study of hypnotism subsequently revolved around the fierce debate between Jean-Martin Charcot and Hippolyte Bernheim, the two most influential figures in late 19th century hypnotism. Charcot operated a clinic at the Pitié-Salpêtrière Hospital (thus, also known as the “Paris School” or the “Salpêtrière School”), while Bernheim had a clinic in Nancy (also known as the “Nancy School”).

Charcot, influenced more by the Mesmerists, argued that hypnotism was an abnormal state of nervous functioning found only in certain hysterical women. He claimed that it manifested in a series of physical reactions which could be divided into distinct stages. Bernheim argued that anyone could be hypnotised, that it was an extension of normal psychological functioning, and that its effects were due to suggestion. After decades of debate, Bernheim’s view dominated. Charcot’s theory is now just a historical curiosity. Pierre Janet (1859-1947) reported studies on a hypnotic subject in 1882. Charcot subsequently appointed him director of the psychological laboratory at the Salpêtrière in 1889, after Janet completed his doctorate in philosophy which dealt with psychological automatism. In 1898 Janet was appointed psychology lecturer at the Sorbonne, and in 1902 became chair of experimental and comparative psychology at the Collège de France. Janet reconciled elements of his views with those of Bernheim and his followers, developing his own sophisticated hypnotic psychotherapy based upon the concept of psychological dissociation which, at the turn of the century, rivaled Freud’s attempt to provide a more comprehensive theory of psychotherapy. Sigmund Freud, the founder of psychoanalysis, studied hypnotism at Paris school and briefly visited the Nancy school.Initially, Freud was an enthusiastic proponent of hypnotherapy, and soon began to emphasise hypnotic regression and ab reaction (catharsis) as therapeutic methods. He wrote a favorable encyclopedia article on hypnotism, translated one of Bernheim’s works into German, and published an influential series of case studies with his colleague Joseph Breuer entitled Studies on Hysteria (1895). This became the founding text of the subsequent tradition known as “hypno-analysis” or “regression hypnotherapy.” However, Freud gradually abandoned hypnotism in favour of psychoanalysis, emphasizing free association and interpretation of the unconscious. Struggling with the great expense of time that psychoanalysis required, Freud later suggested that it might be combined with hypnotic suggestion to hasten the outcome of treatment.

It is very probable, too, that the application of our therapy to numbers will compel us to alloy the pure gold of analysis plentifully with the copper of direct [hypnotic] suggestion. However only a handful of Freud’s followers were sufficiently qualified in hypnosis to attempt the synthesis. Their work had a limited influence on the hypno-therapeutic approaches now known variously as “hypnotic regression”, “hypnotic progression”, and “hypnoanalysis”. Émile Coué (1857-1926) assisted Ambroise-Auguste Liébeault for around two years at Nancy. After practicing for several years as a hypnotherapist employing the methods of Liébeault and Bernheim’s Nancy School, Coué developed a new orientation called “conscious autosuggestion.” Several years after Liébeault’s death in 1904, Coué founded what became known as the New Nancy School, a loose collaboration of practitioners who taught and promoted his views. Coué’s method did not emphasise “sleep” or deep relaxation and instead focused upon autosuggestion involving a specific series of suggestion tests. Although Coué argued that he was no longer using hypnosis, followers such as Charles Baudouin viewed his approach as a form of light self-hypnosis. Coué’s method became a renowned self-help and psychotherapy technique, which contrasted with psychoanalysis and prefigured self-hypnosis and cognitive therapy. Clark L. Hull; The next major development came from behavioral psychology in American university research. Clark L. Hull, an eminent American psychologist, published the first major compilation of laboratory studies on hypnosis, Hypnosis & Suggestibility (1933), in which he proved that hypnosis and sleep had nothing in common. Hull published many quantitative findings from hypnosis and suggestion experiments and encouraged research by mainstream psychologists. Hull’s behavioural psychology interpretation of hypnosis, emphasizing conditioned reflexes, rivaled the Freudian psycho dynamic interpretation emphasizing unconscious transference. Milton H. Erickson, M.D. was one of the most influential post-war hypnotherapists. He wrote several books and journal articles on the subject. During the 1960s, Erickson popularized a new branch of hypnotherapy, known as Ericksonian hypnotherapy, primarily characterised by indirect suggestion, “metaphor” (actually analogies), confusion techniques, and double binds in place of formal hypnotic inductions.

However, the difference between Erickson’s methods and traditional hypnotism led contemporaries such as André Weitzenhoffer, to question whether he was practicing “hypnosis” at all, and his approach remains in question. Erickson had no hesitation in presenting any suggested effect as being “hypnosis”, whether or not the subject was in a hypnotic state. In fact, he was not hesitant in passing off behaviour that was dubiously hypnotic as being hypnotic. Cognitive-behavioural; In the latter half of the twentieth century, two factors contributed to the development of the cognitive-behavioural approach to hypnosis. 1) Cognitive and behavioural theories of the nature of hypnosis (influenced by the theories of Sarbin and Barber) became increasingly influential. 2) The therapeutic practices of hypnotherapy and various forms of cognitive-behavioural therapy overlapped and influenced each other. Although cognitive-behavioural theories of hypnosis must be distinguished from cognitive-behavioural approaches to hypnotherapy, they share similar concepts, terminology, and assumptions and have been integrated by influential researchers and clinicians such as Irving Kirsch, Steven Jay Lynn, and others . At the outset of cognitive-behavioural therapy during the 1950s, hypnosis was used by early behaviour therapists such as Joseph Wolpe and also by early cognitive therapists such as Albert Ellis. Barber, Spanos & Chaves introduced the term “cognitive-behavioural” to describe their “nonstate” theory of hypnosis in Hypnotism: Imagination & Human Potentialities (1974). However, Clark L. Hull had introduced a behavioural psychology as far back as 1933, which in turn was preceded by Ivan Pavlov.. Indeed, the earliest theories and practices of hypnotism, even those of Braid, resemble the cognitive-behavioural orientation in some respects. Uses;  Hypnotherapy; Modern hypnotherapy has been used in a variety of forms, such as regression hypnotherapy (or “hypnoanalysis”) and Ericksonian hypnotherapy. Hypnosis has been studied clinically with varying success. Applications include: * pain management * weight loss* skin disease * soothing anxious surgical patients * psychological therapy * habit control, a way to relax, * sports performance. Self-hypnosis is popularly used to quit smoking and reduce stress, while stage hypnosis can persuade people to perform unusual public feats.Medical applications;

Hypnotherapy has been used to treat irritable bowel syndrome. Researchers who recently reviewed the best studies in this area conclude:  The evidence for hypnosis as an efficacious treatment of IBS was encouraging. Two of three studies that investigated the use of hypnosis for IBS were well designed and showed a clear effect for the hypnotic treatment of IBS. Hypnosis for IBS has received moderate support in the National Institute for Health and Clinical Excellence guidance published for UK health services.It has been used as an aid or alternative to chemical anaesthesia, and it has been studied as a way to soothe skin ailments. A number of studies show that hypnosis can reduce the pain experienced during burn-wound debridement, bone marrow aspirations, and childbirth. The International Journal of Clinical and Experimental Hypnosis found that hypnosis relieved the pain of 75% of 933 subjects participating in 27 different experiments. In 1996, the National Institutes of Health declared hypnosis effective in reducing pain from cancer and other chronic conditions. Nausea and other symptoms related to incurable diseases may also be managed with hypnosis. For example, research done at the Mount Sinai School of Medicine studied two patient groups facing breast cancer surgery. The group that received hypnosis reported less pain, nausea, and anxiety post-surgery. The average hypnosis patient reduced treatment costs by $772.00. The American Psychological Association published a study comparing the effects of hypnosis, ordinary suggestion and placebo in reducing pain. The study found that highly suggestible individuals experienced a greater reduction in pain from hypnosis compared with placebo, whereas less suggestible subjects experienced no pain reduction from hypnosis when compared with placebo. Ordinary non-hypnotic suggestion also caused reduction in pain compared to placebo, but was able to reduce pain in a wider range of subjects (both high and low suggestible) than hypnosis. Treating skin diseases with hypnosis (hypnodermatology)has performed well in treating warts, psoriasis, and atopic dermatitis.  Hypnosis may be useful as an adjunct therapy for weight loss. A 1996 meta-analysis studying hypnosis combined with cognitive-behavioural therapy found that people using both treatments lost more weight than people using CBT alone.

Military Applications; A recently declassified document obtained by The Black Vault Freedom of Information Act archive, shows that hypnosis was investigated for military applications.  However, the overall conclusion of the study was that there was no evidence that hypnosis could be used for military applications, and also that there was no clear evidence for whether ‘hypnosis’ actually exists as a definable phenomena outside of ordinary suggestion, high motivation and subject expectancy. According to the document, The use of hypnosis in intelligence would present certain technical problems not encountered in the clinic or laboratory. To obtain compliance from a resistant source, for example, it would be necessary to hypnotise the source under essentially hostile circumstances. There is no good evidence, clinical or experimental, that this can be done. Furthermore, the document states that: It would be difficult to find an area of scientific interest more beset by divided professional opinion and contradictory experimental evidence…No one can say whether hypnosis is a qualitatively unique state with some physiological and conditioned response components or only a form of suggestion induced by high motivation and a positive relationship between hypnotist and subject…T.X. Barber has produced “hypnotic deafness” and “hypnotic blindness,” analgesia and other responses seen in hypnosis—all without hypnotizing anyone…Orne has shown that unhypnotized persons can be motivated to equal and surpass the supposed superhuman physical feats seen in hypnosis.The study concludes: It is probably significant that in the long history of hypnosis, where the potential application to intelligence has always been known, there are no reliable accounts of its effective use by an intelligence service. Research into hypnosis in military applications is further verified by the MKULTRA experiments, also conducted by the CIA. According to Congressional testimony , the CIA experimented with utilizing LSD and hypnosis for mind control. Many of these programs were done domestically and on participants who were not informed of the study’s purposes or that they would be given drugs. The full paper explores the potentials of operational uses[58]. Psychotherapy; Hypnotherapy is the use of hypnosis in psychotherapy. It is used by licensed physicians, psychologists, and others. Physicians and psychiatrists may use hypnosis to treat depression, anxiety, eating disorders, sleep disorders, compulsive gaming, and posttraumatic stress. Certified hypnotherapists who are not physicians or psychologists often treat smoking and weight management.

(Success rates vary: a meta-study researching hypnosis as a quit-smoking tool found it had a 20 to 30 percent success rate, similar to other quit-smoking methods, while a 2007 study of patients hospitalised for cardiac and pulmonary ailments found that smokers who used hypnosis to quit smoking doubled their chances of success. In a July 2001 article for Scientific American titled “The Truth and the Hype of Hypnosis”, Michael Nash wrote:…using hypnosis, scientists have temporarily created hallucinations, compulsions, certain types of memory loss, false memories, and delusions in the laboratory so that these phenomena can be studied in a controlled environment. Controversy surrounds the use of hypnotherapy to retrieve memories, especially those from early childhood or (alleged) past-lives. The American Medical Association and the American Psychological Association caution against repressed memory therapy in cases of alleged childhood trauma, stating that “it is impossible, without corroborative evidence, to distinguish a true memory from a false one.” Past life regression, meanwhile, is often viewed with skepticism. Self-hypnosis; Self-hypnosis happens when a person hypnotises himself or herself, commonly involving the use of autosuggestion. The technique is often used to increase motivation for a diet, quit smoking, or reduce stress. People who practice self-hypnosis sometimes require assistance; some people use devices known as mind machines to assist in the process, while others use hypnotic recordings. Self-hypnosis is claimed to help with stage fright, relaxation, and physical well-being. Stage hypnosis; Stage hypnosis is a form of entertainment, traditionally employed in a club or theatre before an audience. Due to stage hypnotists’ showmanship, many people believe that hypnosis is a form of mind control. However, the effects of stage hypnosis are probably due to a combination of psychological factors such as peer pressure, social compliance, participant selection, suggestibility, physical manipulation, stagecraft, and trickery.The desire to be the centre of attention, having an excuse to violate their own fear suppressors and the pressure to please are thought to convince subjects to ‘play along’.  Books by stage hypnotists sometimes explicitly describe the use of deception in their acts, for example, Ormond McGill’s New Encyclopedia of Stage Hypnosis describes an entire “fake hypnosis” act which depends upon the use of private whispers throughout.

“We are going to have some good laughs on the audience and fool them… so when I tell you to do some funny things, do exactly as I secretly tell you. Okay? Swell.” (Then deliberately wink at the spectator in a friendly fashion.) Stage hypnosis traditionally employs three fundamental strategies: 1. Participant compliance. Participants on stage tend to be compliant because of the social pressure felt in the situation constructed on stage, before an expectant audience. 2. Participant selection. Preliminary suggestion tests, such as asking the audience to clasp their hands and suggesting they cannot be separated, are usually used to select out the most suggestible and compliant subjects from the audience. By asking for volunteers to mount the stage, the performer also tends to select the most extroverted members of the audience. 3. Deception of the audience. Stage hypnotists are performers who traditionally, but not always, employ a variety of “sleight of hand” strategies to mislead their audience for dramatic effect. The strategies of deception employed in traditional stage hypnosis can be categorised as follows: 1. Off-microphone whispers. The hypnotist lowers his microphone and whispers secret instructions to the participant on stage, outside of the audience’s hearing. These may involve requests to “play along” or fake hypnotic responses. 2. Failure to challenge. The stage hypnotist pretends to challenge subjects to defy a suggestion, e.g., “You cannot stand up out of your chair because your backside is stuck down with glue.” However, no specific cue is given to the participants to begin their effort (“Start trying now!”). This creates the illusion that a specific challenge has been issued and effort made to defy it. 3. Fake hypnosis tricks. Stage hypnosis literature contains a large repertoire of sleight of hand tricks, of the kind used by professional illusionists. None of these tricks require any hypnosis or suggestion, depending on physical manipulation and audience deception. The most famous example of this type is the “human plank” trick, which involves making a subject’s body become rigid (cataleptic) and suspending them horizontally between two chairs, at which point the hypnotist will often stand upon their chest for dramatic effect.

This has nothing to do with hypnosis, but simply depends on the fact that when subjects are positioned in the correct way they can support more weight than the audience assumes. Hypnotism has also been used in forensics, sports, education, physical therapy and rehabilitation. Hypnotism has also been employed by artists for creative purposes most notably the surrealist circle of André Breton who employed hypnosis, automatic writing and sketches for creative purposes. Some people have drawn analogies between certain aspects of hypnotism and areas such as crowd psychology, religious hysteria, and ritual trances in preliterate tribal cultures. The state versus nonstate debate; The central theoretical disagreement is known as the “state versus nonstate” debate. When Braid introduced the concept of hypnotism he equivocated over the nature of the “state”, sometimes describing it as a specific sleep-like neurological state comparable to animal hibernation or yogic meditation, while at other times he emphasised that hypnotism encompassed a number of different stages or states which were an extension of ordinary psychological and physiological processes. Overall, Braid appears to have moved from a more “special state” understanding of hypnotism toward a more complex “nonstate” orientation. State theorists interpret the effects of hypnotism as primarily due to a specific, abnormal and uniform psychological or physiological state of some description, often referred to as “hypnotic trance” or an “altered state of consciousness.” Nonstate theorists rejected the idea of hypnotic trance and interpret the effects of hypnotism as due to a combination of multiple task-specific factors derived from normal cognitive, behavioural and social psychology, such as social role-perception and favorable motivation (Sarbin), active imagination and positive cognitive set (Barber), response expectancy (Kirsch), and the active use of task-specific subjective strategies (Spanos). The personality psychologist Robert White is often cited as providing one of the first nonstate definitions of hypnosis in a 1941 article: Hypnotic behaviour is meaningful, goal-directed striving, its most general goal being to behave like a hypnotised person as this is continuously defined by the operator and understood by the client.

Put simply, it is often claimed that whereas the older “special state” interpretation emphasises the difference between hypnosis and ordinary psychological processes, the “nonstate” interpretation emphasises their similarity. Comparisons between hypnotised and non-hypnotised subjects suggest that if a “hypnotic trance” does exist it only accounts for a small proportion of the effects attributed to hypnotic suggestion, most of which can be replicated without hypnotic induction. Hyper-suggestibility; Braid can be taken to imply, in later writings, that hypnosis is largely a state of heightened suggestibility induced by expectation and focused attention. In particular, Hippolyte Bernheim became known as the leading proponent of the “suggestion theory” of hypnosis, at one point going so far as to declare that there is no hypnotic state, only heightened suggestibility. There is a general consensus that heightened suggestibility is an essential characteristic of hypnosis. If a subject after submitting to the hypnotic procedure shows no genuine increase in susceptibility to any suggestions whatever, there seems no point in calling him hypnotised, regardless of how fully and readily he may respond to suggestions of lid-closure a Neurological imaging techniques provide no evidence of a neurological pattern that can be equated with a “hypnotic trance”. Changes in brain activity have been found in some studies of highly responsive hypnotic subjects. These changes vary depending upon the type of suggestions being given. However, what these results indicate is unclear. They may indicate that suggestions genuinely produce changes in perception or experience that are not simply a result of imagination. However, in normal circumstances without hypnosis, the brain regions associated with motion detection are activated both when motion is seen and when motion is imagined, without any changes in the subjects’ perception or experience.This may therefore indicate that highly suggestible hypnotic subjects are simply activating to a greater extent the areas of the brain used in imagination, without real perceptual changes. Another study has demonstrated that a color hallucination suggestion given to subjects in hypnosis activated color-processing regions of the occipital cortex.

A 2004 review of research examining the EEG laboratory work in this area concludes: Hypnosis is not a unitary state and therefore should show different patterns of EEG activity depending upon the task being experienced. In our evaluation of the literature, enhanced theta is observed during hypnosis when there is task performance or concentrative hypnosis, but not when the highly hypnotizable individuals are passively relaxed, somewhat sleepy and/or more diffuse in their attention. The induction phase of hypnosis may also affect the activity in brain regions which control intention and process conflict. Anna Gosline claims:nd other superficial sleeping behaviour. Conditioned inhibition; Ivan Pavlov stated that hypnotic suggestion provided the best example of a conditioned reflex response in human beings, i.e., that responses to suggestions were learned associations triggered by the words used. Pavlov himself wrote: Speech, on account of the whole preceding life of the adult, is connected up with all the internal and external stimuli which can reach the cortex, signaling all of them and replacing all of them, and therefore it can call forth all those reactions of the organism which are normally determined by the actual stimuli themselves. We can, therefore, regard ‘suggestion’ as the most simple form of a typical reflex in man. He also believed that hypnosis was a “partial sleep” meaning that a generalised inhibition of cortical functioning could be encouraged to spread throughout regions of the brain. He observed that the various degrees of hypnosis did not significantly differ physiologically from the waking state and hypnosis depended on insignificant changes of environmental stimuli. Pavlov also suggested that lower-brain-stem mechanisms were involved in hypnotic conditioning.Pavlov’s ideas combined with those of his rival Bekhterev and became the basis of hypnotic psychotherapy in the Soviet Union, as documented in the writings of his follower K.I. Platonov. Soviet theories of hypnotism subsequently influenced the writings of Western behaviourally-oriented hypnotherapists such as Andrew Salter. However, this theory of hypnosis as a specific state of conditioned cortical inhibition has received little support. Neuropsychology; “Gruzelier and his colleagues studied brain activity using an fMRI while subjects completed a standard cognitive exercise, called the Stroop task. The team screened subjects before the study and chose 12 that were highly susceptible to hypnosis and 12 with low susceptibility. They all completed the task in the fMRI under normal conditions and then again under hypnosis. Throughout the study, both groups were consistent in their task results, achieving similar scores regardless of their mental state. During their first task session, before hypnosis, there were no significant differences in brain activity between the groups.

But under hypnosis, Gruzelier found that the highly susceptible subjects showed significantly more brain activity in the anterior cingulate gyrus than the weakly susceptible subjects. This area of the brain has been shown to respond to errors and evaluate emotional outcomes. The highly susceptible group also showed much greater brain activity on the left side of the prefrontal cortex than the weakly susceptible group. This is an area involved with higher level cognitive processing and behaviour.” Dissociation;  Pierre Janet originally developed the idea of dissociation of consciousness from his work with hysterical patients. He believed that hypnosis was an example of dissociation, whereby areas of an individual’s behavioural control separate from ordinary awareness. Hypnosis would remove some control from the conscious mind, and the individual would respond with autonomic, reflexive behaviour. Weitzenhoffer describes hypnosis via this theory as “dissociation of awareness from the majority of sensory and even strictly neural events taking place.” Neodissociation; Ernest Hilgard, who developed the “neodissociation” theory of hypnotism, hypothesised that hypnosis causes the subjects to divide their consciousness voluntarily. One part responds to the hypnotist while the other retains awareness of reality. Hilgard made subjects take an ice water bath. They said nothing about the water being cold or feeling pain. Hilgard then asked the subjects to lift their index finger if they felt pain and 70% of the subjects lifted their index finger. This showed that even though the subjects were listening to the suggestive hypnotist they still sensed the water’s temperature. Mind-dissociation; This surprisingly simple theory was proposed by Y.D. Tsai in 1995 as part of his psychosomatic theory of dreams. Inside each brain, there is a program ” I ” (the conscious self) which is distributed over the conscious brain and coordinates mental functions (cortices), such as thinking, imagining, sensing, moving, reasoning … etc. “I” also supervises memory. Many bizarre states of consciousness are actually the results of dissociation of certain mental functions from “I”. When a person is hypnotized, it might be that his/her imagination is dissociated and sends the imagined content back to the sensory cortex, resulting in dreams or hallucinations; or that some senses are dissociated, resulting in hypnotic anesthesia; or that motor function is dissociated, resulting in immobility; or that reason is dissociated and he/she obeys the hypnotist’s orders; or that thought is dissociated and not controlled by reason, hence strives to straighten out his/her body between two chairs.

A command can also be acted out long after the hypnosis session, as follows: The subject obeys the voice of reason in normal state, but when hypnotized, reason is replaced by the hypnotist’s command to make decisions or believes, and will be very uneasy if he/she does not do things as decided or his/her belief is contradicted. Hypnotherapy is also based on this principle. Social role-taking theory; The main theorist who pioneered the influential role-taking theory of hypnotism was Theodore Sarbin. Sarbin argued that hypnotic responses were motivated attempts to fulfill the socially-constructed role of hypnotic subject. This has led to the misconception that hypnotic subjects are simply “faking”. However, Sarbin emphasised the difference between faking, in which there is little subjective identification with the role in question, and role-taking, in which the subject not only acts externally in accord with the role but also subjectively identifies with it to some degree, acting, thinking, and feeling “as if” they are hypnotised. Sarbin drew analogies between role-taking in hypnosis and role-taking in other areas such as method acting, mental illness, and shamanic possession, etc. This interpretation of hypnosis is particularly relevant to understanding stage hypnosis in which there is clearly strong peer pressure to comply with a socially-constructed role by performing accordingly on a theatrical stage. Hence, the social constructionism and role-taking theory of hypnosis suggests that individuals are enacting (as opposed to merely playing) a role and that really there is no such thing as a hypnotic trance. A socially-constructed relationship is built depending on how much rapport has been established between the “hypnotist” and the subject (see Hawthorne effect, Pygmalion effect, and placebo effect). Psychologists such as Robert Baker and Graham Wagstaff claim that what we call hypnosis is actually a form of learned social behaviour, a complex hybrid of social compliance, relaxation, and suggestibility that can account for many esoteric behavioural manifestations. Cognitive-behavioural theory; Barber, Spanos, & Chaves (1974) proposed a nonstate “cognitive-behavioural” theory of hypnosis, similar in some respects to Sarbin’s social role-taking theory and building upon the earlier research of Barber. On this model, hypnosis is explained as an extension of ordinary psychological processes like imagination, relaxation, expectation, social compliance, etc. In particular, Barber argued that responses to hypnotic suggestions were mediated by a “positive cognitive set” consisting of positive expectations, attitudes, and motivation. Daniel Araoz subsequently coined the acronym “TEAM” to symbolise the subject’s orientation to hypnosis in terms of “trust”, “expectation”, “attitude”, and “motivation”.

Barber et al., noted that similar factors appeared to mediate the response both to hypnotism and to cognitive-behavioural therapy (CBT), in particular systematic desensitization. Hence, research and clinical practice inspired by their interpretation has led to growing interest in the relationship between hypnotherapy and CBT. Information theory; An approach loosely based on Information theory uses a brain-as-computer model. In adaptive systems, feedback increases the signal-to-noise ratio, which may converge towards a steady state. Increasing the signal-to-noise ratio enables messages to be more clearly received. The hypnotist’s object is to use techniques to reduce interference and increase the receptability of specific messages (suggestions).Systems theory, in this context, may be regarded as an extension of Braid’s original conceptualization of hypnosis as involving a process of enhancing or depressing nervous system activity. Systems theory considers the nervous system’s organization into interacting subsystems. Hypnotic phenomena thus involve not only increased or decreased activity of particular subsystems, but also their interaction. A central phenomenon in this regard is that of feedback loops, which suggest a mechanism for creating hypnotic phenomena.

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