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

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Science  19 Feb 1971:
Vol. 171, Issue 3972, pp. 696-699
DOI: 10.1126/science.171.3972.696


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.