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Activity anorexia: Biological, behavioral, and neural levels of selection

Published online by Cambridge University Press:  06 November 2001

W. David Pierce
Affiliation:
Department of Sociology, University of Alberta, Edmonton, Alberta T6G 2H4, Canadadpierce@gpu.srv.ualberta.ca www.ualberta.ca

Abstract

Activity anorexia illustrates selection of behavior at the biological, behavioral, and neural levels. Based on evolutionary history, food depletion increases the reinforcement value of physical activity that, in turn, decreases the reinforcement effectiveness of eating – resulting in activity anorexia. Neural opiates participate in the selection of physical activity during periods of food depletion.

Type
Brief Report
Copyright
© 2001 Cambridge University Press

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