Abstract
Physiological reactions of the otolith neurons were investigated in the lateral vestibular nucleus (LVN) in the cat. The physiological differences between the ventral and dorsal part of the LVN were examined by tilting and rotating stimulation. 1) In the ventral part of the LVN, many neurons reacted to lateral tilting, and a close relation of this region to the utricles was suspected. 2) In the dorsal part of the LVN, neurons reacting to tilting and those reacting to rotating were found, and some reacted to both. This region was suspected to have indirect connections with otoliths and semicircular canals. 3) In the neurons of the LVN which reacted to lateral tilting, 67% (16/24) were excited by ipsilateral tilting.
