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Neuroscience and Behavioral Physiology

, Volume 40, Issue 5, pp 471–478 | Cite as

Dynamics of Changes in Electrical Activity in the Rabbit Cerebral Cortex during Sequential Sessions of “Animal Hypnosis”

  • E. V. Rusinova
  • V. I. Davydov
Article

The dynamics of changes in individual electrical activity rhythms in the premotor, sensorimotor, and temporal-parietal areas of the cortex in both hemispheres were studied in chronic experiments in rabbits during sequential sessions of “animal hypnosis.” These experiments showed that during the first session of “animal hypnosis,” significant changes in electrical activity occurred only in the premotor area of the cortex of the right hemisphere, where there were increases in spectral power in the delta-1 and delta-2 ranges and decreases in spectral power in other ranges of electrical activity. Subsequent sessions of “animal hypnosis” formed increasing changes in electrical activity, which were particularly marked in cortical areas in the right hemisphere. Significant changes in spectral power in the delta and theta ranges of electrical activity in cortical areas did not arise at the beginning of the hypnotic state, but after 4–6 min. During the third session of “animal hypnosis,” the course of electrical activity in the alpha and beta rhythms in the premotor and sensorimotor areas of the cortex became wave-like in nature.

Key words

rabbits “animal hypnosis” EEG spectral-coherence analysis asymmetry 

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© Springer Science+Business Media, Inc. 2010

Authors and Affiliations

  1. 1.Institute of Higher Nervous Activity and NeurophysiologyRussian Academy of SciencesMoscowRussia

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