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A Computer-Based Platform for Aiding Clinicians in Eating Disorder Analysis and Diagnosis

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Affective style and eating disorders: a field study.

J R Silva¹, M Ortiz, Á Quiñones

¹Department of Mental Health and Psychiatry, Universidad de la Frontera, Temuco, Chile. jaimesilva@ufro.cl

Eating and Weight Disorders : EWD

|October 23, 2010

Summary

This study links eating disorders (ED) to motivational system sensitivity. Specifically, the avoidance system is associated with overeating behaviors and chronic dieting.

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Published on: October 22, 2015

Area of Science:

Psychology
Clinical Psychology
Neuroscience

Background:

Eating disorders (ED) encompass a range of behaviors including restraint and overeating.
Individual differences in affective reactivity and mood (affective style) may influence these behaviors.
Variations in affective style are linked to differing sensitivities in approach and avoidance motivational systems.

Purpose of the Study:

To investigate the relationship between eating disorders and variations in motivational system sensitivity.
To explore the connection between eating disorders and mood dispositions.

Main Methods:

Utilized the Eating Disorder Diagnostic Scale (EDDS) to assess eating disorder status.
Employed the Behavioural Inhibition System and Behavioural Activation System Scales (BIS/BAS) to measure motivational system sensitivity.
Administered the Positive and Negative Affect Schedule (PANAS) to assess mood states.
Collected data from 2020 undergraduate students.

Main Results:

A significant interaction was found between Alimentary group and Motivation (F=4.056; p<0.007).
The Overeating group exhibited lower motivation asymmetry compared to Normal (p<0.01) and Restrictive (p<0.005) groups.
The avoidance/inhibition motivational system appears linked to overeating and chronic dietary restraint.

Conclusions:

Findings suggest a connection between the avoidance motivational system and overeating behaviors.
The study highlights the role of motivational system sensitivity in understanding eating disorders.
Theoretical and clinical implications for eating disorder treatment are discussed.