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Please use this identifier to cite or link to this item: http://hdl.handle.net/10023/1643
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Title: The ontogeny of exploratory behavior in male and female adolescent rats (Rattus norvegicus)
Authors: Lynn, D. A.
Brown, Gillian Ruth
Keywords: Adolescence
Exploration
Novelty
Rats
Sex differences
Elevated plus-maze
Open-field behavior
Anxiety-related behavior
Sex-differences
Emotional behavior
Gender-differences
Risk-taking
Fear
Age
Depression
QL Zoology
Issue Date: Sep-2009
Citation: Lynn , D A & Brown , G R 2009 , ' The ontogeny of exploratory behavior in male and female adolescent rats ( Rattus norvegicus ) ' Developmental Psychobiology , vol 51 , no. 6 , pp. 513-520 .
Abstract: During adolescence, rats gain independence from their mothers and disperse from the natal burrow, with males typically dispersing further than females. We predicted that, if dispersal patterns are associated with responsiveness to novelty, exploratory behavior in novel environments would increase across adolescence, and males would explore more than females. Alternatively, females might explore more than males, if females are more motivated than males to learn about the immediate environment or if females have poorer spatial abilities than males. Twenty-five male and 21 female rats were exposed to two novel environments (open field and elevated plus-maze) during early, mid-, or late adolescence. Total locomotion and amount of exploration directed towards aversive areas increased across adolescence, even when body weight was included as a covariate. Female adolescents locomoted more and spent more time exploring aversive areas than males. Developmental changes in neural function potentially underlie age and sex differences in exploratory, behavior (C) 2009 Wiley Periodicals, Inc. Dev Psychobiol 51: 513-520, 2009.
Version: Publisher PDF
Description: Supported by Wellcome Trust grant 078405/Z/05/Z
Status: Peer reviewed
URI: http://hdl.handle.net/10023/1643
http://onlinelibrary.wiley.com/doi/10.1002/dev.20386/abstract
DOI: http://dx.doi.org/10.1002/dev.20386
ISSN: 0012-1630
Type: Journal article
Rights: (c)2009 Wiley Periodicals Inc. OnlineOpen article deposited by permission of the publisher may be used for non-commercial purposes.
Appears in Collections:University of St Andrews Research
Psychology & Neuroscience Research



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