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Related Experiment Videos

Relateralizing hypnosis: or, have we been barking up the wrong hemisphere?

P Jasiukaitis1, B Nouriani, K Hugdahl

  • 1Stanford University School of Medicine, USA.

The International Journal of Clinical and Experimental Hypnosis
|April 1, 1997
PubMed
Summary

Recent research suggests the left cerebral hemisphere, not the right, plays a key role in hypnosis. This challenges older theories and highlights the left hemisphere's function in focused attention and language during hypnotic states.

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Area of Science:

  • Neuroscience
  • Psychology

Background:

  • Historically, hypnosis research emphasized right-hemisphere brain activity.
  • Emerging evidence suggests a more complex hemispheric involvement.

Purpose of the Study:

  • To re-evaluate the role of cerebral hemispheres in hypnotic phenomena.
  • To propose a left-hemisphere theory of hypnosis based on recent findings.

Main Methods:

  • Review of electrodermal responding data.
  • Analysis of visual event-related potentials.
  • Examination of Stroop interference paradigms.

Main Results:

  • Evidence supports a role for the left hemisphere in specific hypnotic phenomena.
  • Hemispheric activation during hypnosis is task-dependent.

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  • Concentrated attention and language processing in hypnosis align with left-hemisphere functions.

    • Conclusions:

    • Hypnotic phenomena involving focused attention and language may be primarily left-hemisphere functions.
    • A left-hemisphere model of hypnosis is proposed, integrating theories of synthetic capabilities and motor program implementation.