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Original Article
The effects of age and isolation period on two phases of behavioral response to foot shock in isolation-reared rats
Article first published online: 28 MAY 2002
DOI: 10.1002/dev.10040
Copyright © 2002 Wiley Periodicals, Inc.
1098-2302/asset/cover.gif?v=1&s=4a069b6f43d9b9804bdeb72039c0a49c9bb5628f "Developmental Psychobiology")
Additional Information
How to Cite
Arakawa, H. (2002), The effects of age and isolation period on two phases of behavioral response to foot shock in isolation-reared rats. Dev. Psychobiol., 41: 15–24. doi: 10.1002/dev.10040
Publication History
- Issue published online: 28 MAY 2002
- Article first published online: 28 MAY 2002
- Manuscript Accepted: 24 DEC 2001
- Manuscript Received: 22 JUN 2001
- Abstract
- References
- Cited By
Keywords:
- social isolation;
- development;
- animal models;
- pain responses;
- foot shock;
- stress;
- rats
Abstract
Using rats as subjects, the effects of a period of isolation and the subjects' age during isolation on the response to foot shock were systematically examined in three experiments. Both the thresholds of shock that evoked a jumping response and that evoked a thrashing response were measured. The results suggest that the threshold for jumping response decreased when rats were isolated during the postweaning stage of development. On the other hand, the threshold for thrashing response decreased when the subjects were isolated for more than 39 days, independently of their age during isolation. Possible causes of the differential effects of these two factors are discussed in relation to the developmental process of these two behavioral indices. © 2002 Wiley Periodicals, Inc. Dev Psychobiol 41: 15–24, 2002. Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/dev.10040