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ISSN : 1226-9654

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Vol.3

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Hippocampal Lesion Effects on the Configural Discrimination Task in Rats

The Korean Journal of Cognitive and Biological Psychology / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
1991, v.3, pp.111-123
Chang-Wooge Kim (Taegu University)
Seong-Yong Hyun (Taegu University)
Kim, C., & Hyun, S. (1991). Hippocampal Lesion Effects on the Configural Discrimination Task in Rats. The Korean Journal of Cognitive and Biological Psychology, 3, 111-123.

Abstract

This study was an attempt to examine hippocampal lesion effets on the performance of configural discrimination task in the Y-maze. In experiment 1, the subjects were 16 naive male Sprague Dawley rats. Half of the animals were randomly assigned to hippocampal lesioned group, and the other to sham-operated control group. Two groups were trained in the simple discrimination task for five days. Hippocampal lesion group was able to learn simple discrimination task at a level similar to that of control group. In experiment 2, the subjects were 16 naive male Sprague Dawley rats. Half of the animals were randomly assigned to hippocampal lesioned group, and the other half to sham-operated control group. Two groups were trained in the configural discrimination task for seven days. In this task, control group was able to learn configural discrimination but hippocampal group was not. Cognitive mapping theory and working memory theory were difficult to explain the results because these tasks were required taxon system and reference memory. These results might be interpreted by the configural association theory of Sutherland and Rudy(1989).

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The Korean Journal of Cognitive and Biological Psychology

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