Abstract:
:We studied the eye movements and visual perception in a man with extensive bilateral occipital lesions acquired at birth. He had 3/500 acuity, limited visual fields, and extrafoveal fixation attributable to an intact left superior visual cortex. Analysis of digitized electro-oculography and magnetic search coil data showed normal saccade dynamics. He could make voluntary saccades. Smooth pursuit of suprathreshold targets was mostly saccadic and did not improve with added nonvisual cues. Our results support the hypothesis that the visual cortex is crucial to the development of eye movements. The foveal representation in the occipital lobes, missing in this subject, is needed for development of normal smooth pursuit.
journal_name
Neurologyjournal_title
Neurologyauthors
Rizzo M,Hurtig Rdoi
10.1212/wnl.39.3.406subject
Has Abstractpub_date
1989-03-01 00:00:00pages
406-13issue
3eissn
0028-3878issn
1526-632Xjournal_volume
39pub_type
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