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Science 26 July 1974:
Vol. 185. no. 4148, pp. 355 - 357
DOI: 10.1126/science.185.4148.355
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Articles

Visual Fields of Cats with Cortical and Tectal Lesions

S. Murray Sherman 1

1 Department of Physiology, University of Virginia School of Medicine, Charlottesville 22901

When cats were tested for visual field perimetry, the field of vision for each eye separately was from 45° contralateral to 90° ipsilateral. After either bilateral occipitotemporal lesions (with a split of the tectal commissure) or bilateral area 17, 18, and 19 lesions, the cats could see with each eye only from the midline to 90° ipsilateral. A cat that became nearly totally blind as a result of bilateral occipitotemporal decortication had a subsequent tectal split which enabled it to see with each eye from the midline to 90° ipsilateral.


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