title: Neural pathways common to vestibular and optokinetic eye movements.
abstract: To determine how vestibular and optokinetic eye movement signals share the central oculomotor neural organization, optokinetic afternystagmus was superposed on vestibular nystagmus in the monkey. To a first approximation there was algebraic additivity in the velocity domain. This result suggests that vestibular and optokinetic eye movements are integrated at a level of neural organization above the ocular motoneurons, at a level in which neural signals are coded in terms of eye movement velocity rather than eye position.
mesh_terms: D000818:Animals; D005133:Eye Movements; D000882:Haplorhini; D009046:Motor Neurons / Q000502:physiology; D009434:Neural Pathways / Q000502:physiology; D009759:Nystagmus, Pathologic / Q000503:physiopathology*; D009801:Oculomotor Muscles / Q000294:innervation; D010775:Photic Stimulation; D012399:Rotation; D014726:Vestibular Nuclei / Q000502:physiology; D014722:Vestibule, Labyrinth / Q000502:physiology*