The effects of hypnosis upon cognitive responses to persuasive communication

Several writers have suggested that hypnotic responsiveness is directly related to the content of S's covert self-statements. To test this notion, low and high hypnotizable Ss in either hypnosis or waking conditions were exposed to a recorded message advocating that college seniors be required to pass a comprehensive exam in order to graduate. Following message presentation, Ss listed all of the thoughts which occurred to them while listening to the message; these thoughts were later coded as counterarguments, favorable thoughts, or neutral thoughts. Hypnotized Ss generated significantly fewer counterarguments and agreed more with the message than waking Ss. In addition, high hypnotizable Ss (in both waking and hypnosis conditions) produced significantly more favorable thoughts and agreed more with the message than low hypnotizable Ss. Results, therefore, provided a demonstration of the differential impact of context (induction) and trait (hypnotizability level) upon different cognitive phenomena. Implications for the occurrence of hypersuggestible behavior are discussed.