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Related Experiment Videos

Immediate-type hypersensitivity reactions and hypnosis: problems in methodology

T M Laidlaw1, D H Richardson, R J Booth

  • 1Department of Psychiatry and Behavioural Science, University of Auckland, New Zealand.

Journal of Psychosomatic Research
|August 1, 1994
PubMed
Summary

Hypnotic suggestion significantly reduced histamine-induced flare size in asthmatic subjects. This study explored hypnosis's potential to control allergic skin reactions, finding flare size reduction but not wheal size changes.

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Area of Science:

  • Psychoneuroimmunology
  • Dermatology
  • Allergology

Background:

  • Hypnosis has historical applications in managing skin test reactivity since the 1930s.
  • Asthma patients often exhibit heightened skin reactivity.
  • Previous studies suggest hypnosis may influence physiological responses.

Purpose of the Study:

  • To investigate the efficacy of hypnotic suggestion in reducing histamine-induced skin reactions.
  • To test the hypothesis that hypnosis can decrease allergic responses.
  • To explore the relationship between hypnosis, skin temperature, and allergic reactions.

Main Methods:

  • Five non-hypnotist asthmatic subjects underwent three hypnotic suggestion sessions and three non-hypnotic control sessions.
  • Histamine was administered to forearm skin using the Pepys technique.

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  • Flare and wheal sizes were measured, and skin temperature was recorded.

    • Main Results:

    • A significant reduction in flare size was observed after hypnotic suggestion compared to control sessions.
    • No significant difference in wheal size was found between hypnotic and non-hypnotic sessions.
    • Skin temperature showed a correlation with reaction sizes, and daily variations influenced outcomes.

    Conclusions:

    • Hypnotic suggestion can effectively reduce histamine-induced flare size in asthmatic individuals.
    • The study highlights the potential of psychophysiological interventions in managing allergic skin responses.
    • Further research is needed to understand the day-to-day variability in responses and underlying mechanisms.