This study sought to obtain empirical data on the issue of whether susceptibility to hypnosis influences the outcome of an hypnotic therapy. At the first of two sessions, Ss had their susceptibility evaluated unobtrusively. At the second session, they learned Spiegel's self-hypnotic method to stop smoking. At the end of 3 months' follow-up 7 of 54 volunteers were completely abstinent (13%), while 31% had reduced smoking by 50% or more.
Hypnosis has a role in medical practice as an adjunct to many therapies. A brief review of the history, theory, induction procedures, phenomena and practice of hypnosis is given. The use of hypnosis in the therapy of anxiety is illustrated by a report of a 44-year-old woman suffering from an aeroplane phobia.