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[Character of functional connections between sensomotor cortex neurons during isolated and combined stimulation of thalamic nuclei].

In experiments on curarized cats pronounced transformations of the "excitatory" component of the "inhibitory-excitatory" dependence of two close neurones in the sensorimotor cortex were found following multiple isolated VPL and VL stimulation. The effects of repetitive stimulation of thalamic nuclei were opposite to each other: VPL stimulation mainly weakened the "excitatory" component of the "inhibitory-excitatory" connection, whereas VL stimulation generally enhanced it. In the course of combined stimulations of both nuclei the character of interneuronal relations, established under the influence of isolated stimuli, showed further changes. Modifications of interneuronal dependence, resulting from thalamic stimulation, could last for several minutes after cessation of all stimulations.

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