Document Detail

The role of expectancy in hypnotic hypermnesia: a brief communication.
MedLine Citation:
PMID:  1937989     Owner:  NLM     Status:  MEDLINE    
Previous research has yielded equivocal evidence of hypnotic memory enhancement. The present experiment assessed the effects of expectancy and hypnotizability on recall for videotaped material under waking and hypnotic conditions. Ss (N = 138) were informed of hypnotic induction either before (expectancy condition) or after (no expectancy condition) watching a videotaped enactment of a crime and completing an initial waking recall test (RI). Both groups then underwent hypnotic induction, and completed the test again (R2). Ss' raw recall scores were significantly greater under hypnotic than waking conditions, but this hypermnesia was not evident when scores were corrected for mere increase in rate of responding. Ss expecting later hypnosis scored significantly higher than Ss with no such expectations, but again, this difference was not evident in corrected scores. Hypnotizability of Ss was, however, related to corrected recall, with high hypnotizable Ss displaying the greatest increase in rate of responding from R1 to R2. No evidence for the hypothesized "suppression effect" underlying hypnotic hypermnesia was found.
K L Grabowski; N J Roese; M R Thomas
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The International journal of clinical and experimental hypnosis     Volume:  39     ISSN:  0020-7144     ISO Abbreviation:  Int J Clin Exp Hypn     Publication Date:  1991 Oct 
Date Detail:
Created Date:  1991-12-26     Completed Date:  1991-12-26     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0376166     Medline TA:  Int J Clin Exp Hypn     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  193-7     Citation Subset:  IM    
University of Manitoba, Winnipeg, Canada.
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MeSH Terms
Mental Recall*
Set (Psychology)*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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