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Related Experiment Videos

Improved planning abilities in binge eating.

Rémi Neveu1, Dorine Neveu2, Franck Barsumian3

  • 1CNRS, UMR5292, INSERM, U1028, Université Lyon 1, Université de Lyon, Neuroscience Research Center, Team Olfaction: from coding to memory, Lyon, F-69366, France; Praxis, Ville-la-Grand, France.

Plos One
|August 23, 2014
PubMed
Summary

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This summary is machine-generated.

Planning using backward reasoning is linked to binge eating in patients with bulimia nervosa (BN) and bingeing anorexia nervosa (ANB). This planning may help reduce cravings or avoid binges, potentially explaining shifts between eating disorder subtypes.

Area of Science:

  • Neuroscience
  • Psychiatry
  • Cognitive Psychology

Background:

  • The cognitive processes underlying binge eating episodes remain poorly understood.
  • Planning, particularly backward reasoning, has not been previously investigated in relation to binge eating behaviors.

Purpose of the Study:

  • To investigate the characteristics of planning based on backward reasoning in individuals with binge eating disorders.
  • To explore the association between backward reasoning, food cues, and specific eating disorder subtypes.

Main Methods:

  • A cross-sectional study involving healthy controls, bulimia nervosa (BN), restrictive anorexia nervosa (ANR), and bingeing anorexia nervosa (ANB) participants.
  • Assessment of backward reasoning (Race game), reward processing (intertemporal discounting), attention (Simon task), and inhibitory control (Go/No-go task) under different conditions (neutral, binge food, stress).

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Main Results:

  • Patients with BN and ANB demonstrated enhanced backward reasoning in response to food cues compared to neutral conditions.
  • Backward reasoning in the food condition was associated with reduced food approach in BN and increased food avoidance in ANB.
  • Improved backward reasoning in the food condition correlated with attentional bias towards binge foods and preference for delayed rewards in BN patients.

Conclusions:

  • Backward reasoning represents a novel cognitive process associated with binge eating episodes.
  • In BN, this planning may aim to reduce craving and delay binge episodes, while in ANB, it may serve to prevent bingeing.
  • Dynamic shifts in the goals of backward reasoning could potentially explain transitions between different eating disorder classifications.