Preoccupation, food, and failure: an investigation
of cognitive performance deficits in dieters
by
Jones N, Rogers PJ.
Department of Experimental Psychology,
University of Bristol, Bristol, United Kingdom.
Int J Eat Disord. 2003 Mar;33(2):185-92.

ABSTRACT

OBJECTIVE: 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). METHOD: 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. RESULTS AND CONCLUSIONS: 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.

Nutmeg
Inositol
Vitamin E
Serotonin
Chromium
Tryptophan
Cholesterol
Low-fat blues
Vitamins and mood
Docosahexaenoic acid
Catecholamine depletion
Bad moods and sick hearts

HOME
HedWeb
HerbWeb
BLTC Research
nootropic.com
Paradise-Engineering
Utopian Pharmacology
The Hedonistic Imperative
When Is It Best To Take Crack Cocaine?