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  • Title: Does self-affirmation following ego depletion moderate restrained eaters' explicit preferences for, and implicit associations with, high-calorie foods?
    Author: Storr SM, Sparks P.
    Journal: Psychol Health; 2016 Jul; 31(7):840-56. PubMed ID: 26832451.
    Abstract:
    OBJECTIVE: The difficulty for chronic dieters (i.e. restrained eaters) in regulating their food intake is a conflict between two apparently incompatible goals: eating enjoyment and weight control. The latter goal consistently relies on the deployment of cognitive resources, and very often on a significant amount of self-control. This study investigated whether self-affirmation might counteract the effect of ego depletion on restrained eaters' motivation to consume high-calorie foods. DESIGN: Participants (N = 183) were assigned to one of four conditions in a 2 × 2 (Ego depletion × Self-Affirmation) experimental design and were subsequently exposed to images of high- and low-calorie foods. MAIN OUTCOME MEASURES: Participants completed tasks assessing their implicit and explicit preferences for high vs. low-calorie foods, along with a measure of the perceived self-control required to resist foods. RESULTS: Results indicated that, following ego depletion, self-affirmation facilitated restrained eaters' perceptions of self-control and led to lower explicit preferences for high-calorie foods. This pattern was not apparent for implicit preferences. CONCLUSION: Self-affirmation interventions may be capable of restoring self-control resources among restrained eaters. Pointers for future research and practical applications are discussed.
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