Delayed Alternation in Hemicerebrectomized Monkeys

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Science  10 Mar 1961:
Vol. 133, Issue 3454, pp. 701-702
DOI: 10.1126/science.133.3454.701


Monkeys subjected to extensive unilateral brain extirpation learned a delayed alternation task, although their rates of learning were significantly lower than those of a control group of normal animals. Visual field defects did not seem to account for the deficit.