[Reorganization of the synaptic inputs of the sensorimotor cortex to the red nucleus after the destruction of the cerebellar nucleus interpositus in adult cats]

Abstract

Responses of the red nucleus to neurons to stimulation of the ipsilateral sensorimotor cortex have been studied in acute cats with preliminary lesion of the contralateral cerebellar nucleus interpositus (exposition from two weeks to a year and longer period) by intracellular recording technique. Acceleration of the monosynaptic EPSPs rise testifying to formation of the terminal dendrosomatic sprouting of axons of the corticorubral neurons on proximal segments of the somatodendritic membrane of the red nucleus neurons was observed. Various division of the sensorimotor cortex were unequally involved in the process of reorganization of synaptic inputs on the level of individual red nucleus neurons.