Previous research has shown that hypnosis is a fairly stable phenomenon and recent attempts at improving hypnotic performance after some type of training have had little success. However, it is speculated that audio-taped deep-muscle relaxation training may be a useful device for improving hypnotic performance. 12 moderately susceptible Ss (score 4 to 8) improved significantly on the Harvard group scale after three training sessions. The technique may improve hypnotic performance of Ss low in susceptibility.
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