Abstract
Effects of stimulation of the interstitial nucleus of Cajal and Darkshevich's nucleus on unit activity in the lateral vestibular nucleus of Dieters were investigated in cats anesthetized with pentobarbital. Stimulation of the above-mentioned structures was shown to lead to antidromic and orthodromic activation of Dieters neurons. Axon collateral of vestibular neurons, ascending to the above-mentioned brain-stem structures were discovered electrophysiologically. Stimulation of the nuclei of Cajal and Darkshevich was shown to evoke mono- and polysynaptic EPSPs and IPSPs in neurons of Deiters nucleus. Convergence of influences from both nuclei on the neurons studied was demonstrated. The particular features and functional role of the influences observed are discussed.
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