Experimental scarcity increases the relative reinforcing value of food in food insecure adults

Appetite
Amanda K Crandall, J L Temple

Abstract

People with fewer financial resources are at greater risk for obesity, but the mechanisms of this relationship are not fully understood. One factor that is related, both cross-sectionally and prospectively, to obesity is the relative reinforcing value of food. It is possible that the experience of scarcity increases this reinforcing value. To date, no studies have examined this potential relationship experimentally in humans. The purpose of the studies presented here was to test the hypothesis that experimental manipulations of perceived scarcity would impact the relative reinforcing value of food. A secondary hypothesis was that individuals who report experiencing food insecurity would be more sensitive to these experimental manipulations. In order to test these hypotheses, we investigated the effects of experimentally manipulated scarcity on the relative reinforcing value of food in a laboratory setting. Study 1 had a within-subjects design and included 25 adults. Scarcity was manipulated by placing time and resource limits on the relative reinforcing value task and examining responding for a high calorie snack food versus that of an alternative reinforcer. Study 1 showed a tendency for food insecure participants to respond m...Continue Reading

Citations

Feb 27, 2021·BMC Public Health·Amanda K CrandallJennifer L Temple
May 18, 2021·Frontiers in Psychology·Sally G EagletonJennifer S Savage
Jul 5, 2021·Physiology & Behavior·Leonard H Epstein, Katelyn A Carr
Dec 21, 2021·Physiology & Behavior·Amanda K CrandallJennifer L Temple

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