Document Detail


Food search demand effort effects on behavior and cortisol in adult female squirrel monkeys.
MedLine Citation:
PMID:  8295946     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Laboratory-born, group-housed, ovariectomized adult female squirrel monkeys (Saimiri sciureus) were exposed to feeding conditions in which the availability and accessibility of food were altered. Both high- and variable-demand feeding conditions were utilized. The variable-demand condition required alternating periods of high effort (120% of normal daily intake presented) and low effort (600% of normal daily intake presented) to obtain food for 10-12 weeks. An additional group was exposed solely to the high-demand condition for 10 weeks. Blood samples were obtained weekly, and behavioral observations were conducted daily. In the variable-demand condition, plasma cortisol was elevated above baseline during the periods of high effort. For the constant high-demand group, cortisol was elevated for the duration of the experimental treatment. Contact with other animals, as well as a species-specific inactive posture, decreased as a result of exposure to high demand. Maintenance of body weight indicated that nutritional deprivation did not occur. The imposition of increased food-seeking efforts provides an ecologically relevant and noninvasive method of producing chronic stress in the squirrel monkey.
Authors:
M Champoux; D Zanker; S Levine
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Physiology & behavior     Volume:  54     ISSN:  0031-9384     ISO Abbreviation:  Physiol. Behav.     Publication Date:  1993 Dec 
Date Detail:
Created Date:  1994-02-25     Completed Date:  1994-02-25     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0151504     Medline TA:  Physiol Behav     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1091-7     Citation Subset:  IM    
Affiliation:
Department of Psychiatry and Behavioral Sciences, Stanford University, CA 94305-5095.
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MeSH Terms
Descriptor/Qualifier:
Animals
Appetitive Behavior / physiology*
Arousal / physiology*
Energy Metabolism / physiology*
Feeding Behavior / physiology*
Female
Hunger / physiology*
Hydrocortisone / blood*
Motivation
Saimiri
Social Behavior
Social Environment
Grant Support
ID/Acronym/Agency:
HD02881/HD/NICHD NIH HHS; NIMH MH 09912-01/MH/NIMH NIH HHS; NIMH MH15147-10/MH/NIMH NIH HHS
Chemical
Reg. No./Substance:
50-23-7/Hydrocortisone

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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