[An EEG coherence analysis during the interaction of a motor polarization dominant and "animal hypnosis" in rabbits]

Abstract

Intercentral relations of electrical activity of sensorimotor and premotor cortical areas of the right and left hemispheres were studied by means of coherence analysis during interaction of "animal hypnosis" and motor polarization dominant created by the action of DC anode on the area of the left hemisphere in rabbits. It was shown that the session of the "animal hypnosis" performed on the background of the optimum of polarization dominant elicited disappearance of asymmetry of coherence in the delta-range frequency of electrical activity of the examined cortical areas. After the end of hypnotic state and appearance of the motor reaction of the "non-dominant" right limb to the test stimulus, right-left asymmetry was again observed in coherence spectra of electrical activity of sensorimotor and premotor cortical areas. This phenomenon of was characteristic for the optimum of polarization dominant.