The effects of isolation-rearing of rats on behavioural responses to food and environmental novelty

Hall, F. S., Humby, Trevor ORCID: https://orcid.org/0000-0002-1840-1799, Wilkinson, Lawrence Stephen ORCID: https://orcid.org/0000-0002-9337-6124 and Robbins, T. W. 1997. The effects of isolation-rearing of rats on behavioural responses to food and environmental novelty. Physiology & Behavior 62 (2) , pp. 281-290. 10.1016/S0031-9384(97)00115-7

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Abstract

Hall, F. S., T. Humby, L. S. Wilkinson and T. W. Robbins. The effects of isolation-rearing of rats on behaviouralresponses to novelty. Physiol Behav 62(2) 281–;290, 1997.—Isolation-reared rats exhibited enhanced behaviouralresponses to novelty, but only some aspects of such behavior was affected. In Experiment 1, environmental neophobia was enhanced but food neophobia was diminished in isolation-reared rats compared to socially reared rats. However, in Experiment 2, when subjects were not handled extensively prior to testing, no differences in behaviouralresponses to environmental or foodnovelty in an open-field were observed between rearing groups. The difference between these experiments was hypothesized to be the result of ceiling effects produced by increased anxiety or arousal in experiment 2 in which the animals had not been extensively handled. In summary, in these experiments anticipatory responses to novelty were alterred by isolation-rearing but the behavioural expression of this increased sensitivity was determined by intrinsic aversive/rewarding or arousing qualities of novel environments and novel foods.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Psychology Medicine MRC Centre for Neuropsychiatric Genetics and Genomics (CNGG) Neuroscience and Mental Health Research Institute (NMHRI)
Subjects:	B Philosophy. Psychology. Religion > BF Psychology R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Uncontrolled Keywords:	Isolation-rearing; Open-field; Neophobia
Publisher:	Elsevier
ISSN:	0031-9384
Last Modified:	21 Oct 2022 09:07
URI:	https://orca.cardiff.ac.uk/id/eprint/35365

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