SPATIAL COGNITIVE ABILITY IN RATS: EFFECT OF LESIONS IN HIPPOCAMPAL FORMATION AND PREFRONTAL CORTEX AND CAUDATE-PUTAMEN

Abstract

Abstract: The effects of hippocampal formation (HF) and prefrontal cortex(PFC)andcaudate-putamen (CP) lesions in rats were investigated in the Morris maze forthe aquisition and retention of spatial cognitive tasks. The results indicate thatboth subjects with HF and PFC lesions lead to spatial cognitive deficits. How-ever, the former usually used paratic strategeies of "no mapping"which weredifferent from the taxic strategies used by the latter. The different strategiessuggest that HF and PFC are in different levels of the spatial cognitive system,the role of HF is more important than that of PFC. The spatial cognitive abi-lity of rats was not affected by CP lesions, which indicates functional differ-entiational tendency. of homology in mammal and birds.

Key words: hippocampal formation, prefrontal cortex, Caudate-Putamen, cognitive mapping, searching strategies, Morris maze

Sui Nan,Chen Shuangshuang,Kuang Peizi Institute of Psychology, Aoademia Sinica, Beijing. (1992). SPATIAL COGNITIVE ABILITY IN RATS: EFFECT OF LESIONS IN HIPPOCAMPAL FORMATION AND PREFRONTAL CORTEX AND CAUDATE-PUTAMEN. , 24(04), 81-87.

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SPATIAL COGNITIVE ABILITY IN RATS: EFFECT OF LESIONS IN HIPPOCAMPAL FORMATION AND PREFRONTAL CORTEX AND CAUDATE-PUTAMEN

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