Interocular transfer of visual intensity discrimination after ablation of striate cortex in dark-reared kittens


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Abstract

Assuming that the subcortical visual system mediates learning and interocular transfer of intensity discriminations in dark-reared cats, the authors predicted that habits would be retained after ablation of visual cortex and show complete transfer on tests with the previously unused eye. However, all 6 dark- and all 7 light-reared kittens lost monocularly trained habits postoperatively. After retraining with the initial eye, animals of both groups showed immediate interocular transfer, as did unoperated control Ss. It was concluded that with or without cortical participation, visual intensity (as opposed to pattern) discrimination habits are innately organized for interocular stimulus equivalence. (PsycINFO Database Record (c) 2006 APA, all rights reserved)

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