Preparation of visually cued arm movements in monkey. Involvement of inferior parietal cortex.
Single-unit activity was recorded in monkey inferior parietal lobule (IPL) during performance of a visually cued limb motor task. Many neurons in the IPL modulated their activity just after the visual cue was presented, similar to the neuronal activity observed in the premotor cortex in a previous experiment. It is suggested that IPL neurons are involved in preparation of visually cued limb movement. The present results are discussed in view of a possible role for IPL and premotor cortex in processing visual information for use by the primary motor area.
Department of Anatomy, Erasmus University, Rotterdam, The Netherlands.
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Godschalk
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Lemon
D000818:Animals; D001070:Appetitive Behavior / Q000502:physiology; D001931:Brain Mapping; D001933:Brain Stem / Q000502:physiology; D003463:Cues; D008254:Macaca nemestrina; D009042:Motivation / Q000502:physiology; D009044:Motor Cortex / Q000502:physiology; D009046:Motor Neurons / Q000502:physiology; D009132:Muscles / Q000294:innervation; D009474:Neurons / Q000502:physiology; D010296:Parietal Lobe / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology*; D013116:Spinal Cord / Q000502:physiology; D014793:Visual Cortex / Q000502:physiology; D014795:Visual Pathways / Q000502:physiology