Speed of information processing in high and low susceptible subjects: A preliminary study&

Abstract

A backward masking paradigm was employed to test die hypothesis that high hypnotic susceptible Ss are able to process information at a faster rate than low susceptible Ss. The critical interstimulus interval was determined for 8 high and 8 low susceptible Ss. A t-test analysis of the critical interstimulus intervals showed a significant difference between high and low susceptible Ss with the high susceptible Ss showing a lower critical interstimulus interval. Mean critical interstimulus intervals for die high (76 milliseconds) and low (98 milliseconds) susceptible groups suggested that the high susceptible Ss were an average of 22 milliseconds faster at processing information. Results were interpreted as being consistent with, and providing support for attentional theories of hypnosis.