PMID: 8212867Jul 1, 1993Paper

The restructuring of the intercentral relations of the electrical processes in the rabbit brain in a motor dominant

Zhurnal vyssheĭ nervnoĭ deiatelnosti imeni I P Pavlova
G Ia Roshchina

Abstract

On rabbits in chronic experiments by the method of coherent analysis were studied intercentral relations of biopotentials of the sensorimotor cortex and VPL of the thalamus at formation of the motor dominant created by serial electrical stimulation of a leg. In the structures connected with the motor function of the stimulated leg was revealed an increase of coherence of the potentials in the delta-range. At transition of the dominant focus to the inhibitory state and activation of the symmetrical centre of the other leg, in the centers constellation of this induced focus a reconstruction of the electrical processes took place being typical for the dominant. It was shown that the different functional states of the motor dominant (the background, the tonic dominant state and the state before the summation motor reaction) were characterized by different parameters of mean coherence levels of electrical activity in the rabbit's brain.

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