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Food after deprivation rewards the earlier eating

Booth, David A. and Jarvandi, Soghra and Thibault, Louise (2012) Food after deprivation rewards the earlier eating. Appetite. (In Press)

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URL of Published Version: http://dx.doi.org/10.1016/j.appet.2012.07.14

Identification Number/DOI: DOI: 10.1016/j.appet.2012.07.14

Food intake can be increased by learning to anticipate the omission of subsequent meals. We present here a new theory that such anticipatory eating depends on an associative process of instrumental reinforcement by the nutritional repletion that occurs when access to food is restored. Our evidence over the last decade from a smooth-brained omnivore has been that food after deprivation rewards intake even when those reinforced ingestive responses occur long before the physiological signals from renewed assimilation. Effects of food consumed after self deprivation might therefore reward extra eating in human beings, through brain mechanisms that could operate outside awareness. That would have implications for efforts to reduce body weight. This food reward mechanism could be contributing to the failure of the dietary component of interventions on obesity within controlled trials of the management or prevention of disorders such as hypertension, atherosclerosis and type 2 diabetes.

Type of Work:Article
Date:2012 (Publication)
School/Faculty:Colleges (2008 onwards) > College of Life & Environmental Sciences
Department:School of Psychology
Keywords:Overeating. Food reward. Delayed reinforcement. Food deprivation. Skipping meals. Restraint breakdown. Obesity-related disease.
Subjects:BF Psychology
QP Physiology
RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Institution:University of Birmingham
Copyright Holders:University of Birmingham
ID Code:1215
Refereed:YES
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