Effect of deprivation on delayed response and delayed alternation performance by normal and brain operated monkeys

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3 monkeys impaired on delayed response and delayed alternation after midlateral frontal lesions, 3 monkeys unimpaired on these tasks after control lesions, and 3 unoperated monkeys were tested on spatial delayed response (with direct baiting) and spatial delayed alternation following 2, 26, and 50 hr. of food deprivation. Increased deprivation improved delayed response performance by all groups to a similar extent. Increased deprivation had no effect on delayed alternation performance by any group. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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