Impairments in orienting to visual stimuli in monkeys following unilateral lesions of the superior sulcal polysensory cortex.
Monkeys were tested for head and eye orientation to illuminated lamps in a hemisphere before and after serial, unilateral lesions of the polysensory superior temporal cortex (STS) or control lesions. Following STS lesions they were impaired in orienting to contralateral lamps; this impairment was more severe and persistent when a ipsilateral stimulus in the mirror-image position was simultaneously presented. These findings, together with deficits in manual reaching and grasping observed following STS lesions, support the view that the STS is part of a polysensory system controlling attention and exploratory movements.
D000818:Animals; D001288:Attention / Q000502:physiology; D008252:Macaca fascicularis; D008297:Male; D009949:Orientation / Q000502:physiology*; D011597:Psychomotor Performance / Q000502:physiology; D013702:Temporal Lobe / Q000502:physiology*; D014796:Visual Perception / Q000502:physiology*