[Classification of the vestibulospinal neurons of the cat Deiter's nucleus].

The antidromic activation of neurons in the cat Deiters nucleus to stimulation of spinal cerevical segments was studied using the intracellular microelectrode recording technique. Separate components of the antidromic action potential and its after-deflections were analyzed in fast- and slow-conducting neurons. A direct dependence between the parameters of the after-deflections and duration of the refractory period was revealed for these neurons. Variable responsivity of neurons with the same axonal conductance velocity is shown to be dependent on the after-depolarizing potential.