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An Examination of the Effects of Forensic Hypnosis

  • Howard William Timm

Abstract

This study examined the efficacy of using memory assistance procedures to increase eyewitness recall as well as the impact of incorporating formal hypnotic induction suggestions into those techniques. The subjects consisted of 56 volunteers that were each victims of a squirt gun shooting incident. The number of “I don’t know” responses made by those subjects when they were questioned about that incident significantly decreased after the memory assistance procedures were employed. Contrary to the results of prior forensic hypnosis studies, both the hypnotized and non-hypnotized subjects had higher levels of certainty associated with their correct responses than with their incorrect answers. Overall, the results indicated that the addition of formal hypnotic induction techniques to standard guided memory assistance procedures offers neither substantial advantages nor disadvantages with respect to the amount of information secured from witnesses.

Keywords

Certainty Level Police Investigator Hypnotic Susceptibility Mock Crime Certainty Rating 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1985

Authors and Affiliations

  • Howard William Timm
    • 1
  1. 1.Center for the Study of Crime, Delinquency, and CorrectionsSouthern Illinois University at CarbondaleUSA

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