In answer to "The reasons of studying the effect of vestibular efferents in Type II HC and not in Type I"
Type I hair cells do not receive direct efferent input in the adult.
In answer to "Are human's vestibular efferents similar to rodents?"
Lysakowski and Goldberg have shown similarities between non-human primates and rodents regarding hair cells and afferent fibers.
We are pleased to share our latest paper on the inhibition of type II vestibular hair cells through α9-containing nAChRs and SK channels mediated by electrical and optogenetic stimulation of efferent fibers. https://t.co/PWPQwYSMUL