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Hypnosis and evidence: help or hindrance?
Annals of the New York Academy of Sciences
|January 1, 1980
Summary
Hypnosis in forensic medicine can enhance memory recall but risks false memories and confessions. Understanding its uses and limits is crucial for investigators to ensure accurate information gathering.
Area of Science:
- Forensic Medicine
- Psychology
Background:
- Misconceptions about hypnosis create confusion regarding its role in forensic medicine.
- Hypnosis involves a state of heightened attentive concentration with parallel awareness.
Purpose of the Study:
- To clarify the role and limitations of hypnosis in forensic medicine.
- To address the dual nature of hypnotically enhanced memory recall.
Main Methods:
- Review of existing literature on hypnosis in forensic contexts.
- Analysis of case illustrations demonstrating the effects of hypnosis on memory.
- Introduction of trance capacity assessment for diagnostic clarification.
Main Results:
- Hypnotically enhanced memory recall carries risks of contamination from internal and external cues, potentially leading to false memories or confessions.
- The "honest liar syndrome" can occur under hypnosis.
- Trance capacity assessment aids in clarifying diagnosis and mental defect/disease issues.
Conclusions:
- Hypnosis in forensic medicine requires stringent safeguards due to its potential for both accurate recall and memory distortion.
- Educating interrogating professionals on the uses and limits of hypnosis is vital for judicious information elicitation.