Neuronal activity in the vestibular nuclei of the alert monkey during vestibular and optokinetic stimulation.
Recordings from neurons of the vestibular nuclei were performed in  alert monkeys. Type I and type II units were identified by rotating the monkey about a vertical axis. Al neurons responded also when only the visual surround was rotated around the stationary monkey. The combination of visual and vestibular stimulation points towards non-algebraic summation characteristics for the two inputs, with each input dominating the response over a certain range.
D000818:Animals; D005071:Evoked Potentials; D005133:Eye Movements; D000882:Haplorhini; D009474:Neurons / Q000502:physiology; D011930:Reaction Time; D012665:Semicircular Canals / Q000294:innervation* / Q000502:physiology; D014726:Vestibular Nuclei / Q000166:cytology / Q000502:physiology*; D014795:Visual Pathways / Q000502:physiology; D014796:Visual Perception / Q000502:physiology