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Revisiting places passed: sensitization of exploratory activity in rats with hippocampal lesions

Honey, Robert Colin, Marshall, V. J., McGregor, Anthony, Futter, James Edward and Good, Mark Andrew 2007. Revisiting places passed: sensitization of exploratory activity in rats with hippocampal lesions. Quarterly Journal of Experimental Psychology 60 (5) , pp. 625-634. 10.1080/17470210601155252

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Abstract

We examined the involvement of the hippocampus in short-term changes in exploratory behaviour in an open field (Experiment 1) and experimental contexts (Experiment 2). In Experiment 1, rats with excitotoxic lesions of the hippocampus were more likely to revisit recently visited zones within the open field than were control rats. Similarly, in Experiment 2 rats with hippocampal lesions showed greater exploration of a context that they had recently explored than a context that they had less recently explored. This short-term sensitization effect was not evident in control rats. These findings are consistent with the suggestion that the recent presentation of a stimulus has two opposing effects on behaviour, sensitization, and habituation, and that hippocampal lesions disrupt the short-term process responsible for habituation, but not that responsible for sensitization.

Item Type: Article
Status: Published
Schools: Psychology
Publisher: Taylor & Francis
ISSN: 1747-0218
Last Modified: 04 Jun 2017 04:07
URI: http://orca.cf.ac.uk/id/eprint/33041

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Cited 11 times in Google Scholar. View in Google Scholar

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Cited 10 times in Web of Science. View in Web of Science.

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