SPATIAL COGNITIVE MAPS - DIFFERENTIAL ROLE OF PARIETAL CORTEX AND HIPPOCAMPAL-FORMATION
SPATIAL COGNITIVE MAPS - DIFFERENTIAL ROLE OF PARIETAL CORTEX AND HIPPOCAMPAL-FORMATION
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DOI：
10.1037/0735-7044.102.4.471
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发表时间：
1988-08-01
影响因子：
1.9
通讯作者：
KESNER, RP
中科院分区：
文献类型：
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作者：
DIMATTIA, BD;KESNER, RP
对顶叶皮质（PC）或海马结构（HF）有损伤的不同组的大鼠进行了莫里斯水迷宫认知绘图任务的获取和保留测试。每个损伤组中的一些动物接受了该任务的术前训练。每组中的其他动物未接受术前训练。结果表明，虽然这两种损伤都会导致任务获取和重获方面的认知映射障碍，但定量测量表明，PC 损伤的动物比 HF 损伤的动物受损更严重。然而，动物游泳行为的定性方面表明，HF 损伤的动物倾向于使用“非映射”策略来解决任务，这表明它们的损伤的定性性质与 PC 损伤的动物不同。这项研究的结果支持这样的假设：PC 在处理异中心或身体外部空间的信息中发挥着重要作用。
Separate groups of rats with lesions in the parietal cortex (PC) or hippocampal formation (HF) were tested for acquisition and retention of the Morris water maze cognitive mapping task. Some of the animals in each lesion group received preoperative training in the task. Other animals in each group received no preoperative training. The results indicate that although both lesions lead to a cognitive mapping impairment in both the acquisition and retnetion of the task, the animals with PC lesions were more severely impaired than were the animals with HF lesions, as indicated by quantitative measures. However, qualitative aspects of the animals'' swim behavior indicate that the HF damaged animals tend to use "nonmapping" strategies to solve the task, which suggests that the qualitative nature of their impairment differs from that of the PC damaged animals. The results of this study support the hypothesis that PC plays an important role in the processing of information about space that is allocentric or external to the body.