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[Changes in regional cortical blood flow in hypnosis]
Zeitschrift Fur Psychosomatische Medizin Und Psychoanalyse
|January 1, 1989
Summary
Self-hypnosis increases global cortical blood flow and activates temporal areas, potentially linked to auditory attention. Successful arm levitation during hypnosis shows complex hemispheric blood flow patterns.
Area of Science:
- Neuroscience
- Cognitive Psychology
- Medical Imaging
Context:
- Investigating the neurophysiological underpinnings of hypnosis.
- Understanding brain activity changes during self-induced altered states of consciousness.
Purpose:
- To measure regional cerebral blood flow (rCBF) during self-hypnosis.
- To correlate brain activity with specific hypnotic phenomena like arm levitation.
Summary:
- Regional cerebral blood flow (rCBF) was measured using the 133-Xenon inhalation method in healthy males experienced in self-hypnosis.
- A global increase in cortical blood flow and regional activation of temporal areas were observed during successful right arm levitation in hypnosis compared to rest.
- An unexplained deactivation in inferior temporal areas was noted during successful self-hypnosis, alongside bilateral cortical blood flow increases without a relative hemispheric dominance.
Impact:
- Provides insights into the neural mechanisms of hypnosis and attention.
- Highlights the complex interplay between hemispheric activation and hypnotic task performance.
- Suggests temporal lobe involvement in auditory attention during hypnotic states.