HYPNOTIC SUGGESTION OF STIMULUS CHANGE AND VISUAL CORTICAL EVOKED-POTENTIAL

Two experiments were conducted using human subjects to determine whether the hypnotic suggestion of stimulus intensity change would affect the physical parameters (latencies, amplitudes) of the visual cortical evoked potential. Stimulus intensity was kept constant as visual cortical evoked potentials were measured under conditions in which it was suggested that stimuli were "bright" or "dim." The results of both experiments showed that, under these conditions hypnotic suggestion of stimulus intensity change did not result in changes in visual cortical evoked potentials.