Dissociating the role of the parietal cortex and dorsal hippocampus for spatial information processing

Naomi J. Goodrich-Hunsaker, Michael R. Hunsaker, Raymond P. Kesner

Research output: Contribution to journalArticle

72 Scopus citations

Abstract

Dorsal hippocampus, parietal cortex, and control lesioned rats were tested on both a metric and topological task. The metric task consisted of 2 different objects placed 68 cm apart on a cheese board. After habituation, the objects were moved to a separation of 38 cm on Day 1 and to a separation of 98 cm on Day 2. The topological task consisted of 4 different objects placed in a square orientation. After habituation, the first 2 objects were switched, and after the rats habituated to that change, the back 2 objects were switched. This was repeated on a different day with 4 new objects. The data suggest that the hippocampus is necessary for metric representations, whereas the parietal cortex is necessary for topological representations.

Original languageEnglish (US)
Pages (from-to)1307-1315
Number of pages9
JournalBehavioral Neuroscience
Volume119
Issue number5
DOIs
StatePublished - Oct 2005
Externally publishedYes

Keywords

  • Dorsal hippocampus
  • Metric
  • Novelty
  • Parietal cortex
  • Topological

ASJC Scopus subject areas

  • Behavioral Neuroscience
  • Clinical Psychology

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