Skip to main content
Article
Inhibiting food reward: delay discounting, food reward sensitivity, and palatable food intake in overweight and obese women
UMass Worcester Prevention Research Center Publications and Presentations
  • Bradley M. Appelhans, Rush University Medical Center
  • Kathleen Woolf, New York University
  • Sherry L. Pagoto, University of Massachusetts Medical School
  • Kristin L. Schneider, University of Massachusetts Medical School
  • Matthew C. Whited, University of Massachusetts Medical School
  • Rebecca Liebman, Rush University Medical Center
UMMS Affiliation
Department of Medicine, Division of Preventive and Behavioral Medicine
Date
11-1-2011
Document Type
Article
Medical Subject Headings
Adolescent; Adult; Appetite; *Eating; Energy Intake; Female; Food Preferences; Humans; Hyperphagia; *Inhibition (Psychology); Linear Models; Middle Aged; Obesity; Overweight; Reward; Taste; Young Adult
Abstract

Overeating is believed to result when the appetitive motivation to consume palatable food exceeds an individual's capacity for inhibitory control of eating. This hypothesis was supported in recent studies involving predominantly normal weight women, but has not been tested in obese populations. The current study tested the interaction between food reward sensitivity and inhibitory control in predicting palatable food intake among energy-replete overweight and obese women (N = 62). Sensitivity to palatable food reward was measured with the Power of Food Scale. Inhibitory control was assessed with a computerized choice task that captures the tendency to discount large delayed rewards relative to smaller immediate rewards. Participants completed an eating in the absence of hunger protocol in which homeostatic energy needs were eliminated with a bland preload of plain oatmeal, followed by a bogus laboratory taste test of palatable and bland snacks. The interaction between food reward sensitivity and inhibitory control was a significant predictor of palatable food intake in regression analyses controlling for BMI and the amount of preload consumed. Probing this interaction indicated that higher food reward sensitivity predicted greater palatable food intake at low levels of inhibitory control, but was not associated with intake at high levels of inhibitory control. As expected, no associations were found in a similar regression analysis predicting intake of bland foods. Findings support a neurobehavioral model of eating behavior in which sensitivity to palatable food reward drives overeating only when accompanied by insufficient inhibitory control. Strengthening inhibitory control could enhance weight management programs.

Comments

Citation: Appelhans BM, Woolf K, Pagoto SL, Schneider KL, Whited MC, Liebman R. Inhibiting food reward: delay discounting, food reward sensitivity, and palatable food intake in overweight and obese women. Obesity (Silver Spring). 2011 Nov;19(11):2175-82. doi: 10.1038/oby.2011.57. Link to article on publisher's site

Related Resources
Link to Article in PubMed
PubMed ID
21475139
Citation Information
Bradley M. Appelhans, Kathleen Woolf, Sherry L. Pagoto, Kristin L. Schneider, et al.. "Inhibiting food reward: delay discounting, food reward sensitivity, and palatable food intake in overweight and obese women" Vol. 19 Iss. 11 (2011) ISSN: 1930-7381 (Linking)
Available at: http://works.bepress.com/sherry_pagoto/88/