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NCJ Number: 121929 Add to Shopping cart Find in a Library
Title: Hypnotic Hypermnesia: Enhanced Memory Accessibility or Report Bias?
Journal: Journal of Abnormal Psychology  Volume:97  Issue:3  Dated:(1988)  Pages:289-295
Author(s): W G Whitehouse; D F Dinges; E C Orne; M T Orne
Date Published: 1988
Page Count: 7
Sponsoring Agency: National Institute of Justice (NIJ)
Washington, DC 20531
US Dept of Justice NIJ Pub
Washington, DC 20531
Grant Number: 82-IJ-CX-0007, MH-19156
Type: Survey
Format: Article
Language: English
Country: United States of America
Annotation: Inconsistent evidence of memory enhancement has been yielded by laboratory studies of hypnotic hypermnesia.
Abstract: The processes responsible for the occasional positive findings have eluded identification. The present experiment assessed delayed recall for filmed material under conditions in which subjects were required to answer all questions even if they had to guess. Subjects also rated confidence in the accuracy of each response. After an initial wake-baseline forced-recall test, the subjects were randomly selected for hypnosis or waking conditions for a second forced-recall test. On the second test, both groups recalled additional correct details, but the magnitude of hypermnesia was not greater for subjects exposed to the hypnosis treatment. However, the hypnotized subjects exhibited a significantly greater increase in confidence for responses designated as "guesses" on the prior waking test. This finding was consistent with the view that hypnosis engenders a shift in the subjective criterion for what constitutes a "memory." The implications of these findings for using hypnosis in forensic situations are detailed. 3 tables, 36 references. (Author abstract modified)
Main Term(s): Hypermnesia; Questioning under hypnosis
Index Term(s): Forensic sciences; Psychological research
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