Preoccupation, food and failure: an investigation of cognitive performance deficits in dieters

N Jones, PJ Rogers

Research output: Contribution to journalArticle (Academic Journal)peer-review

37 Citations (Scopus)

Abstract

This study tested two explanations of the cognitive performance deficits of dieters. First, these deficits are due to the metabolic consequences of food deprivation. Second, they are psychological in origin (i.e., preoccupation with dieting-related thoughts during dieting depletes the cognitive resources available for nondieting tasks). Dieters and nondieters performed a battery of cognitive tasks before and after consumption of a high-energy chocolate bar. Eating the chocolate bar was expected to reverse the effects of food deprivation but, as a diet-threatening food, it could increase dieting-related preoccupation. The results supported the latter prediction. Performance on a memory task was further impaired, rather than improved, after food consumption in dieters. In addition, dieters experienced a significant increase in the number of food and dieting-related thoughts. Some dieters attributed their poorer performance to distraction by these thoughts. Marked individual differences in thought content accounted for some of the variability in the effects on performance.
Translated title of the contributionPreoccupation, food and failure: an investigation of cognitive performance deficits in dieters
Original languageEnglish
Pages (from-to)185 - 192
Number of pages8
JournalInternational Journal of Eating Disorders
Volume33
DOIs
Publication statusPublished - Mar 2003

Bibliographical note

Publisher: John Wiley

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