Stress and eating: the effects of ego-threat and cognitive demand on food intake in restrained and emotional eaters

Appetite. 2004 Aug;43(1):39-46. doi: 10.1016/j.appet.2004.02.001.

Abstract

Restrained and emotional eaters overeat in response to stress. To compare differential effects of cognitive demand and ego-threatening stressors on subsequent chocolate intake, 38 females completed a neutral (control), an ego threatening and an incongruent Stroop colour-naming task on three separate occasions. Participants were assigned to four groups based on median-split scores on the restrained and emotional eating scales of the Dutch Eating Behaviour Questionnaire-high restraint/high emotional, high restraint/low emotional, low restraint/high emotional and low restraint/low emotional. Higher response latencies were observed in the incongruent task, confirming its greater cognitive (attentional) demand. Overall intake was enhanced by 23% after ego-threat and 15% after the incongruent Stroop task relative to control. Restraint was associated with greater intake after both ego-threat and the incongruent task than in the control condition. In contrast, emotional eating was associated with greater intake after only the ego-threat, relative to control. A positive association between reaction time and subsequent intake in all conditions for high restraint/low emotional eaters provided support for the limited capacity hypothesis. Enhanced intake in emotional eaters is proposed to relate to escape from self-awareness. These findings demonstrate differential effects of threat and demand on stress-related eating in restrained and emotional eaters.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Analysis of Variance
  • Appetite / physiology
  • Eating / physiology
  • Eating / psychology*
  • Ego
  • Feeding Behavior / physiology
  • Feeding Behavior / psychology*
  • Female
  • Humans
  • Internal-External Control*
  • Interpersonal Relations
  • Netherlands
  • Stress, Psychological / physiopathology*
  • Stress, Psychological / psychology*
  • Surveys and Questionnaires