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Cerebral Cortex 1991; 1:367-373
© Oxford University Press 1991

research-article

Role of Parietal Cortex and Hippocampus in Representing Spatial Information

Raymond P. Kesner1,, Guy Farnsworth1 and Hideki Kametani2

1Department of Psychology,University of Utah Salt Lake City, Utah 84112, 2Department of Neuroscience, Kasei Institute of Life Sciences Tokyo, Japan

Department of Psychology, University of Utah, Salt Lake City, UT 84112.

Rats with lesions in the parietal cortex or hippocampus as well as cortical lesion and sham-operated controls were tested for acquisition or retention of a cheese board spatial task (dry land version of a water maze task). Results indicated that, relative to controls, rats with hippocampal or parietal cortex lesions were impaired in both acquisition and retention of the spatial task as measured by increased distances traveled to find the correct food location. It is suggested that both the hippocampus and panetal cortex subserve spatial representations required for optimal learning and perfor mance of the cheese board spatial task.


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