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The Effects of Dorsomedial Thalamic Lesions on Learning

The Korean Journal of Cognitive and Biological Psychology / The Korean Journal of Cognitive and Biological Psychology, (P)1226-9654; (E)2733-466X
1989, v.1, pp.18-25
Hyoun-Kab Chang (Yeungnam University)
Ho-Chan Lim (Yeungnam University)
Kyoung-Hee Chang (Yeungnam University)

Abstract

The purpose of this study was to investigate the effects of dorsomedial thalamic nuclei lesions on cognitive learning task(eq. maze learning) and emotional learning task(eq. conditional avoidance learning) in the rat. The results of this study were as follows. First, experimental group showed significantly more errors than control group in the Hebb-Williams maze task, Second, experimental group showed significantly lower learning ability than control group in the one-way conditional avoidance learning. Third, in the maze learning, experimental group showed reduced errors in the second day learning compared to the first day learning score. But, in the conditional avoidance learning, does not showed any difference between two days learning score. These results suggested that dorsomedial thalamic nuclei might be related to emotional learning task, as well as cognitive learning task.

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Submission Date
1989-10-13
Revised Date
1989-10-30
Accepted Date

The Korean Journal of Cognitive and Biological Psychology