The Journal of General Physiology, Vol 65, 385-397, Copyright © 1975 by The Rockefeller University Press
A dual synaptic effect on hair cells in Hermissenda
DL Alkon
Type A photorecptors can produce an initial hyperpolarizing wave followed
by a delayed long-lasting increase in firing which is usually accompanied
by a small depolarizing wave. The initial hyperpolarizing wave arises from
an increase in conductance while the depolarizing wave was shown to arise
from a decrease in conductance. The data presented indicate that both
effects produced by the type A photoreceptors in ipsilateral hair cells are
synaptic.