Inhibiting Food Reward: Delay Discounting, Food Reward Sensitivity, and Palatable Food Intake in Overweight and Obese Women

Bradley M. Appelhans; Kathleen Woolf; Sherry L. Pagoto; Kristin L. Schneider; Matthew C. Whited; Rebecca Liebman

doi:10.1038/oby.2011.57

journal article Nov 01, 2011

Inhibiting Food Reward: Delay Discounting, Food Reward Sensitivity, and Palatable Food Intake in Overweight and Obese Women

Bradley M. Appelhans Kathleen Woolf Sherry L. Pagoto

Kristin L. Schneider Matthew C. Whited Rebecca Liebman

Obesity Vol. 19 No. 11 pp. 2175-2182 · Wiley

View at Publisher Save 10.1038/oby.2011.57

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.

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Details

Published: Nov 01, 2011
Vol/Issue: 19(11)
Pages: 2175-2182
License: View

Authors

Cite This Article

Bradley M. Appelhans, Kathleen Woolf, Sherry L. Pagoto, et al. (2011). Inhibiting Food Reward: Delay Discounting, Food Reward Sensitivity, and Palatable Food Intake in Overweight and Obese Women. Obesity, 19(11), 2175-2182. https://doi.org/10.1038/oby.2011.57

Inhibiting Food Reward: Delay Discounting, Food Reward Sensitivity, and Palatable Food Intake in Overweight and Obese Women

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