Reviews Demystifying Hypnosis
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Reviews Demystifying Hypnosis Hypnosis: The Cognitive-Behavioral Perspective. Edited by Nicholas P. Spanos and John F. Chaves. Prometheus Books, 1989. 511 pp. Cloth $34.95. Lewis Jones f I tell you what I'm thinking or in all, and the text is backed up by feeling, how do you know I'm speak- about 1,500 references. I ing the truth? For centuries philo- What is hypnosis? Spanos and sophers have chewed over the Chaves point out that for most Problem of Private Events, and it has laypeople and many research workers been tackled from the isolation of the and health-care providers, it involves philosopher's study, by sittin' and a trance, or at least an altered state thinkin'. of conciousness that is brought on by And then the experimental psy- repetitive verba! rituais, known as the chologist came along, took the prob- induction procedure. The person lem away from the philosopher, and hypnotized allegedly becomes a pas- shook it by the scruff of the neck. sive automaton and comes under the Take statements like these: "I don't control of the hypnotist. remember where I heard that"; "I've The vogue began with the German forgotten the word"; "I don't know physician Anton Mesmer in the late why I did that"; "It doesn't hurt"; "I've eighteenth century. At that time, his gone deaf"; "I can't see it"; "It's red." "animal magnetism' was investigated There are two ways of finding out by the Royal Commission in France. whether these statements are true. Their experiments led them to the One is to simply ask the speaker and conclusion that the patient's "imagi- believe whatever he says. The other nation and expectant desire" were is to sit down and figure out independ- sufficient to account for Mesmer's ent ways of getting at the truth. On results. the face of things, many of these Not that this stopped the march of statements may seem to be beyond mesmerism. It became entwined with investigation, but tackling them has a range of other occult beliefs and got produced some of the most ingenious a new lease on life. And now here we testing procedures devised by exper- are toward the end of the twentieth imental psychologists. (Yes, I'm afraid century with the American Psycho- the word experimental is necessary.) logical Association sheltering a full- Hypnosis is a case in point, and fledged Division of Psychological Hypnosis, a collection of essays and Hypnosis (are there other kinds?). studies edited by Nicholas Spanos and It is about 40 years now since John Chaves, is well stocked with the T. R. Sarbin (one of this book's results of tests. There are 19 papers contributors) threw out the long-held 302 SKEPTICAL INQUIRER, Vol. 14 belief in an "altered state of conscious- ness." And in the 1960s, T. X. Barber finally unsheathed the simple weapon that had been the death of so many groundless belief systems—the con- trol group. One group was given a hypnotic induction procedure, a second group was asked to just imagine whatever was suggested to them, and a third group was simply urged to do their best to respond to suggestions. "Hypnotized subjects responded to suggestions for age regression, hallu- cination, amnesia, pain reduction, and so forth—but so did the controls. And those who were simply told, "Do your best," did just as well as those who were "hypnotized." (I'm afraid the word hypnotized often has to go about with quotes acting as bodyguards.) Other researchers soon found that nonhypnotic subjects also did as well in producing "so-called immoral, self- goal is "to behave like a hypnotized destructive, or criminal behavior." It person as this is continuously defined turned out that all subjects knew by the operator and understood by the perfectly well that they would be safe subject" (R. W. White). For many from harm since they were aware they subjects, merely defining the situation were taking part in experiments in an as hypnosis results in their classifying academic setting. everyday behaviors like arm-raising as The subjects who did best in tests "involuntary." And T. X. Barber and of hypnotic susceptibility were those D. S. Calverley made the amusing who had been asked to pretend to be discovery that when a group of hypnotized. And hypnotic perfor- subjects were told that hypnosis was mance could be noticeably improved a test of gullibility, "hypnotic respond- with some training. In other words, ing was virtually nullified." what had been thought of as a genet- When a subject is told that he will ically endowed susceptibility was in perform a certain action on cue after fact a skill that could be learned. "waking up," is that action really Some fairly recent work has sug- beyond his control? Thirteen subjects gested that hypnotic susceptibility were told to scratch their ear when might be related to the trait of they heard the word psychology, and "absorption." ("Do you become com- they all did so. The hypnotist gave the pletely absorbed and 'lose yourself in impression that the experiment was watching a film, reading a book, over and had an informal conversation listening to music?") But this too has with a colleague in which the cue word now fallen by the wayside. was used: Nine of the subjects failed The fact is that hypnotic subjects to respond. When the hypnotist then know how hypnotic subjects are intimated that the experiment was still supposed to behave, and their general in progress, seven of those nine began Spring 1990 303 responding again. Another experi- Furthermore, most amnesics will menter found that all post-hypnotic confess to remembering more and responding stopped when he left the more of the "forgotten" material room, apparently to attend an under adequate pressure, "to the emergency. extent that they have nothing left to In a similar experiment, Spanos and remember when amnesia is lifted." his associates found that subjects all Coe's conclusion on the result of dutifully coughed when they heard post-hypnotic amnesia studies: the word psychology in the experimen- "Responsive hypnotic subjects can be tal situation. But Spanos had arranged viewed as engaged in strategic enact- for a confederate to pose as a lost ment to fulfill the role of a good student asking for the psychology hypnotic subject as they perceived it." department. None of the subjects Hypnotic deafness? If you get responded to the cue word. someone to read or speak into a I. F. Hoyt and J. F. Kihlstrom have microphone and feed back the sound concluded that "post-hypnotic of his voice into headphones after a information-processing is no different momentary time lag, his speech will from nonhypnotic information- become seriously disrupted, with processing." slurring, hesitations, and stammering. Subjects are sometimes given a Hypnotic subjects claiming to be deaf post-hypnotic suggestion that they show the same disruptions. will not remember certain key words. "High-susceptible" subjects and Do they really forget these words? "low-susceptible" subjects have been According to their verbal reports, they told that they are deaf in one ear. Then do. But according to their galvanic skin pairs of words have been presented resistance, they don't. simultaneously, one member of the In another example, subjects are pair to each ear. Subjects should only given a list of words to learn. They be able to hear words presented to are then "hypnotized" and given their "good" ear. In fact, both groups another list to learn. This second list show the same number of intrusions has been constructed so as to interfere from the "deaf" ear. with the recall of the first list. Some Color-blindness? When hypnoti- subjects are then given a post- cally color-blind subjects are shown hypnotic amnesia suggestion to forget the Isihara "malingering" card, they the second list. Other subjects are report that they can't see the number given no suggestion. When recall is that in fact can be seen by all genuinely tested later, subjects in both groups red/green-blind individuals. recall the first list at the same level. Post-hypnotic negative hallucina- William C. Coe asks simply: "Is their tions? Hypnotically blind subjects amnesia credible?" continue to process the visual infor- Spanos and others found that mation they claim not to see. between 40 and 63 percent of their There are a number of standard "amnesic" subjects later admitted that ways of reducing the effects of pain they had suppressed their reports. (e.g., self-distraction, placebos, relax- Coe writes: "Perhaps we should ation, cognitive re-interpretation, wonder how many did not confess?" positive imagery). Does hypnosis do And he comments: "The 'skill' they a better job? employ is not reporting." Not surpris- Perhaps the best-known (and most ingly, simulators are just as successful often quoted) person to use mesmer- in employing this "skill." ism for surgical pain was the 304 SKEPTICAL INQUIRER, Vol. 14 nineteenth-century physician John Esdaile. He reported thousands of minor surgical procedures. Medical 'Hypnotized' subjects workers in Austria, in France, and in responded to suggestions for the United States tried to replicate his successes. They all failed. age regression, Like the acupuncture miracle- hallucinations, amnesia, pain workers of China, Esdaile plied his reduction, and so forth—but trade in a distant clime (in his case, India)—"far from the din of skeptical so did the controls. And those colleagues" in the polite phrase of John who were simply told 'Do Chaves. your best' did just as well. When the time came to investigate Esdaile's achievements, the Bengal government appointed a commission.