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Related Experiment Videos

Focused hypnotic analgesia: local and remote effects.

Yair Sharav1, Michael Tal

  • 1Department of Oral Medicine, School of Dental Medicine, The Hebrew University-Hadassah, Jerusalem, Israel Department of Anatomy and Cell Biology, Schools of Dental Medicine and Medicine, The Hebrew University-Hadassah, Jerusalem, Israel.

Pain
|June 6, 2006
PubMed
Summary

Focused hypnotic analgesia primarily reduces pain locally in highly hypnotizable individuals. Some pain reduction may occur remotely, potentially due to placebo effects, especially in those with high hypnotizability.

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Area of Science:

  • Psychology
  • Neuroscience
  • Pain Management

Background:

  • Focused hypnotic analgesia is a technique targeting pain relief in specific body areas.
  • Its precise localization (local vs. remote) and effectiveness across hypnotizability levels remain unclear.

Purpose of the Study:

  • To investigate whether focused hypnotic analgesia is confined to the targeted area or if it spreads to other body regions.
  • To compare the effects in high-hypnotizable (HH) and low-hypnotizable (LH) individuals.

Main Methods:

  • Assessed hypnotic analgesia using electrical stimuli applied either locally or remotely to the face or leg.
  • Tested 12 HH and 13 LH subjects, measuring pain reduction in response to increasing stimulus intensity.

Main Results:

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  • HH subjects showed significantly greater pain reduction in the local site compared to the remote site.
  • Both HH and LH subjects experienced increased pain reduction with higher stimulus intensities.
  • Significant analgesia occurred at higher intensities in HH subjects (local and remote) than in LH subjects (local and remote).

Conclusions:

  • In HH subjects, focused hypnotic analgesia is largely localized but may have some remote effects, possibly influenced by placebo.
  • Hypnotic analgesia effectiveness increases with stimulus intensity for both HH and LH individuals.
  • Focused hypnotic analgesia relies on directed attention, distinguishing it from distraction-based methods.