The use of observationally presented information to modify hypnotic susceptibility.

This study examined the extent to which hypnotic susceptibility could be modified by means of various types of information modeled on a videotape. Of particular interest was the extent to which hypnotizability could be altered for the initially less susceptible S. Two major informational components were compared: (a) behavioral modeling cues, in which 5s observed a model acquiesce to seven hypnotic suggestions, and (6) verbal modeling cues, in which information was presented designed to correct misconceptions concerning hypnosis as well as provide concrete methods for experiencing hypnosis. Seventy Stanford University students were given a base-line test of hypnotic susceptibility. After the manipulation period, 5s took another susceptibility scale. Several days later, a more difficult follow-up scale was administered. Verbal modeling cues (in combination with motivational encouragement) were significantly more effective than the other cues, even for the initially less susceptible 5s. The results are discussed in relation to social learning and cognitive approaches to behavior change.