Cognition and self-control: cognitive control of painful sensory input.

Eighty Ss were first tested for base-level response to a pain-producing stimulus and then were re-tested on the same pain stimulus after receiving 1 of 8 experimental treatments. The 8 treatments were arranged in a 2 x 2 x 2 factorial design: presence or absence of hypnotic induction procedure; presence or absence of instructions for anesthesia; and presence or absence of demands for honest reports. Neither the hypnotic-induction procedure nor the demands for honesty affected the Ss'reports of the degree of pain experienced. The anesthesia instructions--"think of the hand as numb and insensitive as if it were a piece of rubber..."--produced an equal degree of pain reduction in hypnotic and non-hypnotic Ss and in Ss who were and those who were not exposed to demands for honesty. The results indicate that (a) Ss' reports of pain are less affected by demands for honesty and are more closely related to their actual experiences than has been previously assumed and (b) instructions which direct Ss to exercise cognitive control over painful sensory input are effective (with or without 'hypnosis') in reducing the experience of pain.

Hypnosis, suggestions, and altered states of consciousness: experimental evaluation of the new cognitive-behavioral theory and the traditional trance-state theory of "hypnosis".

Sixty-six subjects were tested on a new scale for evaluating "hypnotic-like" experiences (The Creative Imagination Scale), which includes ten standardized test-suggestions (e.g. suggestions for arm heaviness, finger anesthesia, time distortion, and age regression). The subjects were randomly assigned to one of three treatment groups (Think-With Instructions, trance induction, and Control), with 22 subjects to each group. The new Cognitive-Behavioral Theory predicted that subjects exposed to preliminary instructions designed to demonstrate how to think and imagine along with the suggested themes (Think-With Instructions) would be more responsive to test-suggestions for anesthesia, time distortion, age regression, and so on, than subjects exposed to a trance-induction procedure. On the other hand, the traditional Trance State Theory predicted that a trance induction would be more effective than Think-With Instructions in enhancing responses to such suggestions. Subjects exposed to the Think-With Instructions obtained significantly higher scores on the test-suggestions than those exposed either to the traditional trance-induction procedure or to the control treatment. Scores of subjects who received the trance-induction procedure were not significantly different from those of the subjects who received the control treatment. The results thus supported the new Cognitive-Behavioral Theory and contradicted the traditional Trance State Theory of hypnosis. Two recent experiments, by De Stefano and by Katz, confirmed the above experimental results and offered further support for the Cognitive-Behavioral Theory. In both recent experiments, subjects randomly assigned to a "Think-With Instructions" treatment were more responsive to test-suggestions than those randomly assigned to a traditional trance-induction treatment.

A deeper understanding of hypnosis: its secrets, its nature, its essence.

Numerous research projects converge on the conclusion that there are three major types of very good or highly responsive hypnotic subjects: (a) fantasy-prone individuals who have secretly spent much of their time since childhood fantasizing vividly and realistically; (b) amnesia-prone individuals who have developed special abilities for mentally repressing or compartmentalizing undesired memories, thoughts, and emotions; and (c) positively-set individuals who are maximally ready to cooperate, think-with, and imagine what is suggested to the best of their ability while letting go of contrary thoughts. The major principle that provides a deep understanding of hypnosis and hypnotic phenomena is that all hypnotic subjects are affected, albeit in different ways for different types of subjects, by four powerful behavior-determining factors that can be potentially maximized in hypnotic situations: (a) social factors that obligate the socialized subject to cooperate and try to actualize or realize the hypnotist's expectations and explicit suggestions; (b) the hypnotist's unique skills and personal characteristics (including creative ideas, communicative ability, and interpersonal efficacy) and the nature of the hypnotist-subject interpersonal relationship; (c) the effectiveness of the induction procedure in guiding the subject to think-with the suggestions; and (d) the depth of meaning, creativity, and "force" or "power" of the suggested ideas.

Cognitive control of pain: four serendipitous results.

The experiment was designed to determine whether specific cognitive strategies are effective in reducing pain. Subjects were tested either on cold pain or pressure pain. Although the cognitive strategies did not significantly alter pain tolerance or pain intensity, the following four findings emerged: (a) males and females responded in a similar manner to the painful stimuli, (b) both the experimental subjects and the controls had surprisingly high tolerance of pain, (c) subjects typically generated their own thoughts and images to control pain, and (d) subjects responded to cold pain and to pressure pain in a similar manner.