Reduction of Word-Recognition Threshold under Hypnosis

Abstract

In two experiments with 24 Ss each, the recognition threshold for common English words was reduced under hypnosis. Thresholds were also reduced, however, after waking suggestions and, in one of the experiments, after a prolonged rest period. In all these cases, the amount of the threshold reduction was highly correlated with the initial threshold level. Since these initial thresholds were apparently inflated by S's expectancy for hypnosis, the subsequent threshold reduction may reflect merely the termination of this expectancy and not the direct influence of the treatment variables. The effect of hypnosis upon thresholds uninflated by the expectancy for hypnosis remains to be tested.