Afferent projection from reticular nuclei, inferior olive and cerebellum to lateral vestibular nucleus of the cat as demonstrated by horseradish peroxidase

Afferent connection to lateral vestibular nucleus (LVN) was examined using retrograde transport of horseradish peroxidase (HRP). When HRP was microiontophoretically applied to the immediate vicinity of the LVN neuron, which monosynaptically fired spike upon VIIIth cranial nerve stimulation, HRP-labelled cells were observed in the ipsilateral lateral reticular nucleus, bilateral gigantocellular nucleus, and contralateral dorsal cap and beta-nucleus of inferior olive in addition to various parts of cerebellum.