International journal of psychophysiology : official journal of the International Organization of Psychophysiology
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Int J Psychophysiol · Apr 2004
Randomized Controlled Trial Clinical TrialFocused analgesia and generalized relaxation produce differential hypnotic analgesia in response to ascending stimulus intensity.
This study was designed in order to examine the effects of different types of hypnotic suggestion on hypnotic analgesia. Generalized relaxation and focused analgesia were induced in seven high-hypnotizable (HH) and eight low-hypnotizable (LH) subjects. Subjects were not aware to which group they belonged. ⋯ We conclude that by utilizing two modes of hypnotic suggestions in response to ascending stimuli, we were able to discover two components of hypnotic analgesia. One shows a parallel shift in the stimulus-response function, has features similar to placebo and bears no clear relationship to hypnotic susceptibility. The other shows a slope change in the stimulus-response curve and has a positive relationship to hypnotic susceptibility.