Interaction of saccadic and vestibular mechanisms in combined eye-head gaze shifts.
Saccades are the only purely volitional eye movements available to primates. They are used extensively to acquire new or interesting targets in the visual environment. Most patients with saccadic disorders are referred to neurologists. Patients complaining of disorientation, however, are often presumed to be suffering from a vestibular disorder. Vestibular and saccadic physiology has been studied mostly in isolation of each other. We examine the interaction of saccadic burst neurons and vestibular signals to achieve accurate gaze shifts.
Bance
M L
ML
Department of Otolaryngology, University of Toronto, Ontario, Canada.
Tomlinson
R D
RD
D000818:Animals; D006257:Head; D008253:Macaca mulatta; D009068:Movement / Q000502:physiology; D009474:Neurons / Q000502:physiology*; D011597:Psychomotor Performance; D012438:Saccades / Q000502:physiology*; D014725:Vestibular Nerve / Q000502:physiology*