Document Detail

Feeding behavior, obesity, and neuroeconomics.
MedLine Citation:
PMID:  17825853     Owner:  NLM     Status:  MEDLINE    
For the past 50 years, the most prevalent theoretical models for regulation of food intake have been based in the physiological concept of energy homeostasis. However, several authors have noted that the simplest form of homeostasis, stability, does not accurately reflect the actual state of affairs and most notably the recent upward trend in body mass index observed in the majority of affluent nations. The present review argues that processes of natural selection have more likely made us first and foremost behavioral opportunists that are adapted to uncertain environments, and that physiological homeostasis is subservient to that reality. Examples are presented from a variety of laboratory studies indicating that food intake is a function of the effort and/or time required to procure that food, and that economic decision-making is central to understanding how much and when organisms eat. The discipline of behavioral economics has developed concepts that are useful for this enterprise, and some of these are presented. Lastly, we present demonstrations in which genetic or physiologic investigations using environmental complexity will lead to more realistic ideas about how to understand and treat idiopathic human obesity. The fact is that humans are eating more and gaining weight in favorable food environments in exactly the way predicted from some of these models, and this has implications for the appropriate way to treat obesity.
Neil E Rowland; Cheryl H Vaughan; Clare M Mathes; Anaya Mitra
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Extramural; Review     Date:  2007-08-15
Journal Detail:
Title:  Physiology & behavior     Volume:  93     ISSN:  0031-9384     ISO Abbreviation:  Physiol. Behav.     Publication Date:  2008 Jan 
Date Detail:
Created Date:  2008-01-14     Completed Date:  2008-04-22     Revised Date:  2013-06-06    
Medline Journal Info:
Nlm Unique ID:  0151504     Medline TA:  Physiol Behav     Country:  United States    
Other Details:
Languages:  eng     Pagination:  97-109     Citation Subset:  IM    
Department of Psychology, University of Florida, Gainesville, FL 32611-2250, United States.
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MeSH Terms
Adaptation, Physiological / genetics*,  physiology
Body Weight / genetics*,  physiology
Energy Metabolism / genetics,  physiology
Feeding Behavior / physiology*
Models, Biological
Models, Economic
Obesity / genetics,  physiopathology*
Selection, Genetic*
Grant Support
1R01 DK064712/DK/NIDDK NIH HHS; R01 DK064712-02/DK/NIDDK NIH HHS

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