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Related Experiment Video

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Control of Eating Behavior Using a Novel Feedback System
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Dissonance-based eating disorder program reduces cardiac risk: A preliminary trial.

Melinda A Green1, Mary Willis1, Kristen Fernandez-Kong1

  • 1Cornell College Body Dissatisfaction and Eating Disorder Research Laboratory, Department of Psychology, Cornell College.

Health Psychology : Official Journal of the Division of Health Psychology, American Psychological Association
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Summary

A dissonance-based eating disorder program effectively reduced eating disorder symptoms and cardiac risks in women. This program shows promise for both prevention and treatment of eating disorders.

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Area of Science:

  • Psychology
  • Cardiology
  • Public Health

Background:

  • Eating disorders present significant health risks, including cardiac complications.
  • Early intervention and treatment are crucial for improving outcomes.
  • Dissonance-based interventions offer a novel approach to address disordered eating behaviors.

Purpose of the Study:

  • To evaluate the efficacy of a dissonance-based program in reducing eating disorder symptoms.
  • To assess the program's impact on cardiac risk indices in women with eating disorders.
  • To examine the program's effectiveness in both indicated prevention and treatment.

Main Methods:

  • A randomized, controlled preliminary trial with 47 women (subclinical and clinical symptoms).
  • Dissonance-based intervention versus an assessment-only control group.
  • Assessment of eating disorder symptoms and cardiac risk biomarkers (ECG-derived measures) at baseline, postintervention, and 2-month follow-up.

Main Results:

  • Significant reduction in eating disorder symptoms in the dissonance group compared to the control group.
  • Significant decrease in cardiac risk indices (e.g., QT interval, heart rate variability) postintervention and at follow-up.
  • The dissonance-based program demonstrated efficacy in both prevention and treatment contexts.

Conclusions:

  • Dissonance-based interventions are effective in reducing eating disorder symptoms and associated cardiac risks.
  • This approach shows potential for indicated prevention and treatment of eating disorders.
  • Findings support the integration of dissonance-based strategies in eating disorder management.