Abstract
Performed ablations of inferotemporal (2 Ss) and of foveal prestriate cortex (2 Ss) in rhesus monkeys, impairing their visual learning. In order to determine if a sensory loss was associated with either lesion, the detectability of a light flash under scoptopic conditions was measured with a signal-detection procedure with the monkeys and with 2 male undergraduates. Neither lesion produced a decrease in sensitivity, although both produced the usual visual-learning deficit. Sensitivity of the human Ss was well within the limits of unoperated animals. (27 ref.) (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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