ISSN 0439-755X
CN 11-1911/B
主办:中国心理学会
   中国科学院心理研究所
出版:科学出版社

心理学报 ›› 1992, Vol. 24 ›› Issue (1): 82-90.

• • 上一篇    下一篇

隔区或皮质顶叶损毁对大鼠空间认知能力的影响及大鼠搜索策略差异的研究

隋南;匡培梓   

  1. 中国科学院心理研究所,中国科学院心理研究所 北京,100012 ,北京,100012
  • 发布日期:1992-03-25 出版日期:1992-03-25
  • 通讯作者: 隋南

SPATIAL COGNITIVE ABILITY: THE DIFFERENTIAL ROLE OF SEPTUM AND PARIETAL CORTEX

Sui Nan;Kuang Pei-zi Institute of Psychology, Academia Sinica   

  • Online:1992-03-25 Published:1992-03-25

摘要: 本研究的目的是探讨隔区或皮质顶叶在大鼠空间认知加工中的作用。实验观察到隔区或皮质顶叶损毁大鼠Morris迷宫学习或记忆作业成绩显著低于控制组,并发现隔区损毁大鼠主要采用与皮质顶叶或控制组不同的“非国类”搜索策略。搜索策略的差异提示:隔区和皮质顶叶在大鼠图认知加工系统中处于不同的功能层次,隔区具有更重要的作用。

关键词: 隔区, 皮质顶叶, 图认知, 搜索策略, Morris迷宫

Abstract: Separate groups of rats with lesions in the septum or parietal cortex were tested for acquisition and retention of the Morris water maze spatial cognitive task. Some of them in each lesion group received preoperative training in the task. Others in each group received no preoparative training. The results in- dicated that although both lesions lead to a spatial cognitive impairment in both the acquisition and retention of the task, the animals with septum lesions were more severely impaired than were the animals with parietal cortex lesions, as indicated by quantitative measures. Searching strategies were used as an index to eximine the qualitative difference of the animal's swimming beha- vior. The septum damaged animals tended to use "nonmapping" strategies to solve the task, and the strategies emerged a dynamic change. All of these su- ggested that the qualitative nature of the impairment differed from that of the parietal cortex damaged animals. The results of this study support the hypo- thesis that septum plays an important role in the processing of spatial mapping cognition.

Key words: septum, parietal cortex, cognitive mapping, searching strategies, Morris maze