Response to constant angular accelerations of neurons in the monkey superior vestibular nucleus.

摘要: The response to constant angular acceleration of type I neurons in the superior vestibular nucleus was studied pentobarbital-anesthetized, cerebellectomized squirrel monkeys. Some so-called intact animals had six active semicircular canals. In other animals, three canals on one side were rendered non-responsive by plugging, and data obtained from plugged unplugged sides. There is no significant difference between mean resting activities units sides animals. Two observations appear reflect a synergy inputs individual parallel First, have roughly linear excitatory input-output relationships. plugged-side exhibit an saturation. nonlinear relation may result addition ipsilateral contralateral inputs. Second, sensitivity significantly smaller than that Units responsive stimulation either two canal planes showed summation with simultaneous activation Type III IV responses can such summation.