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The role of the caudate nucleus in the performance of classical and inverted delayed responses


, : The role of the caudate nucleus in the performance of classical and inverted delayed responses. Izvestiya Akademii Nauk Gruzii Seriya Biologicheskaya 18(2): 77-85

Effects of lesions of the anterodorsal part of caudate nucleus on the performance of classical and inverted delayed responses were studied in rats. Experiments have shown, that under the testing conditions employed rats solve these tasks by the use of "rigid" strategy of egocentric localization in the course of delayed response performance they learn to maintain the "targeting reflex" toward the baited foodwell during the delayed period. Bilateral lesions of the head of caudate nucleus lead to deficits in the delayed response performance. We suppose, that the mentioned part of caudate nucleus may be responsible for the process of instrumentalization of "targeting reflexes", i. e. for the system of "rigid" egocentric spatial localization.

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