[Changes in quantitative characteristics of the efferent activity of the locomotor generator after decerebellation]

Abstract

Quantitative changes of efferent activity parameters of the locomotor generators of hindlimbs were investigated after decerebellation on the decerebrated immobilized cats. Removal of modulating influences of the cerebellum on nuclei of descending systems caused an insignificant increase in the activity of the generator half-centre, increased instability of the generator functioning, diminished the statistical dependence between changes in parameters of the activity of the generator half-centres and strengthened the generators' sensitivity to afferent signals. The functional significance of descending signals in functioning of the locomotor and scratch generators is discussed.