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Related Concept Videos

Anorexia Nervosa01:28

Anorexia Nervosa

Anorexia nervosa is a complex and severe eating disorder characterized by an intense fear of weight gain, an unrelenting pursuit of thinness, and a distorted body image. It often leads to dangerously low body weight relative to an individual's age and height. This disorder is marked by significant physical and psychological consequences, making it one of the most life-threatening psychiatric illnesses.
Symptoms and Physical Effects
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Bulimia Nervosa01:30

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Bulimia nervosa is a complex and severe eating disorder characterized by a cyclical pattern of binge-and-purge eating pattern. It generally involves an episode of binge eating, followed by compensatory behaviors such as vomiting, excessive exercise, laxative use, or fasting, to prevent weight gain. Despite often maintaining a normal weight, individuals with bulimia are intensely preoccupied with their body image and harbor an overwhelming fear of gaining weight. This can contribute to the...
Binge Eating Disorders01:23

Binge Eating Disorders

Binge eating disorder is a significant mental health condition characterized by recurrent episodes of excessive food consumption within a short period, accompanied by a perceived loss of control over eating behavior. Unlike occasional overeating, binge eating disorder is marked by distressing emotions such as guilt, shame, and anxiety following binge episodes. The disorder affects individuals across different ages and backgrounds, with profound implications for physical and psychological...

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Related Experiment Video

Updated: May 20, 2026

Using the Activity-based Anorexia Rodent Model to Study the Neurobiological Basis of Anorexia Nervosa
07:46

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Published on: October 22, 2015

Neurocognitive functioning in adolescents with eating disorders: a population-based study.

Karina L Allen1, Susan M Byrne, Hilary Hii

  • 1a Telethon Institute for Child Health Research, Centre for Child Health Research , University of Western Australia , Subiaco , Western Australia.

Cognitive Neuropsychiatry
|July 19, 2012
PubMed
Summary

Adolescents with eating disorders show impaired executive functions like set shifting, but better visual attention. These neurocognitive differences may indicate early signs of eating disorders.

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Developmental Psychology

Background:

  • Eating disorders, including anorexia nervosa and bulimia nervosa, are associated with neurocognitive deficits.
  • Existing research lacks definitive conclusions on the specific nature and extent of these cognitive impairments.
  • Adolescent eating disorders require further investigation into their neurocognitive underpinnings.

Purpose of the Study:

  • To evaluate neurocognitive functioning in a population-based adolescent sample with and without eating disorders.
  • To identify specific cognitive domains affected by eating disorders in adolescents.
  • To explore potential early neurocognitive markers associated with eating disorder development.

Main Methods:

  • Utilized the Western Australian Pregnancy Cohort (Raine) Study sample (N=669).
  • Administered the computerized CogState assessment battery for cognitive testing.
  • Assessed eating disorder symptoms using adapted Child Eating Disorder Examination and Eating Disorder Examination-Questionnaire criteria.

Main Results:

  • Adolescents with eating disorders (n=58) exhibited deficits in executive functioning, specifically global processing and set shifting.
  • The eating disorder group demonstrated superior performance in visual attention and vigilance compared to controls (n=592).
  • Findings suggest specific neurocognitive alterations in adolescents with eating disorders.

Conclusions:

  • This study provides the first population-based evaluation of neurocognitive functioning in adolescents with eating disorders.
  • Evidence supports the presence of weak central coherence and set-shifting difficulties early in the course of eating disorders.
  • Further research is necessary to determine if these neurocognitive deficits precede and predict the onset of eating disorders.