| The activity of rats in a swimming situation as a function of water temperature. | |
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MedLine Citation:
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PMID: 8140169 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Previous research has shown that time before drowning in rats decreases gradually as stress is increased by varying water temperature in the swimming situation. In the present research, the activity of swimming rats appeared to be a U function of varying water temperature, lending support to the notion that activity is a behavioral measure that estimates the rats chances of survival in the water. This conclusion was further supported by the covariation of activity with a different behavioral measure of survival. In addition, activity during sessions decreased gradually, suggesting that a lowered activity is an adaptive response in the rat. Activity, thus, appears to be negatively correlated to the rat's survival chances under colder (14-23 degrees) and warmer (23-47 degrees) temperatures; i.e., in a more stressful situation, including extreme fear. It may be, therefore, that a decrease in activity obtained in present laboratory models (i.e., immobility) is more relevant to the extinction of fear than despair, as reported by other researchers. |
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Authors:
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C A Bruner; I Vargas |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Physiology & behavior Volume: 55 ISSN: 0031-9384 ISO Abbreviation: Physiol. Behav. Publication Date: 1994 Jan |
Date Detail:
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Created Date: 1994-04-25 Completed Date: 1994-04-25 Revised Date: 2003-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0151504 Medline TA: Physiol Behav Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 21-8 Citation Subset: IM |
Affiliation:
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Laboratory of Operant Conditioning, Faculty of Psychology, National Autonomous University of Mexico, Mexico D.F. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Animals Arousal / physiology* Body Temperature Regulation / physiology* Female Motivation Motor Activity / physiology* Psychophysiology Rats Rats, Wistar Swimming |
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