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Science 19 February 1971:
Vol. 171. no. 3972, pp. 696 - 699
DOI: 10.1126/science.171.3972.696
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Articles

Visual Attention in the Tree Shrew: An Ablation Study of the Striate and Extrastriate Visual Cortex

H. Killackey 1 and I. T. Diamond 1

1 Department of Psychology, Duke University, Durham, North Carolina

Removal of the striate area in tree shrews results in increased distractibility, which prevents the animals from learning to discriminate form when hue is an irrelevant and distracting cue. Removal of the extrastriate visual cortex results in the reciprocal deficit: an increase in perseveration manifested by an inability to shift attention when irrelevant dimensions are made relevant.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)