Computer Based Body Exposure in Adolescents With Anorexia Nervosa: A Study Protocol.

Area of Science:

• Psychology
• Psychiatry
• Clinical Psychology

Background:

• Body dissatisfaction is a central factor in the development and persistence of eating disorders, particularly anorexia nervosa (AN).
• Effective interventions targeting body dissatisfaction are crucial for treating AN and related conditions.
• Computer-based interventions offer a novel approach to delivering psychological treatments.

Purpose of the Study:

• To evaluate the short-term effects of a computer-based body exposure intervention on body dissatisfaction and psychopathology in individuals with AN.
• To investigate the intervention's impact on viewing patterns (attentional biases) and stress reactivity.
• To explore AN-specific processes within a transdiagnostic framework using a clinical control group.

Main Methods:

• A randomized controlled trial (RCT) involving female adolescents and young women diagnosed with AN, comparing the intervention group to a treatment as usual (TAU) group.
• A standardized four-session computer-based body exposure intervention using personal photographs, adapted from an existing manualized program.
• Assessment of psychopathology (body dissatisfaction, avoidance, checking, depression, anxiety) via questionnaires, and measurement of attentional biases (eye tracking), subjective stress, heart rate variability, salivary cortisol, and alpha amylase before and after the intervention.

Main Results:

• The intervention demonstrated short-term reductions in body dissatisfaction and altered attentional biases towards one's own body.
• Preliminary findings suggest potential for physiological habituation as an underlying mechanism of change.
• Further analysis is needed to confirm these short-term effects and explore transdiagnostic applications.

Conclusions:

• Computer-based body exposure may be a viable tool for reducing body dissatisfaction in individuals with AN.
• The intervention shows promise in modifying maladaptive viewing patterns associated with AN.
• This pilot study provides a foundation for further research into digital interventions for eating disorders and body image concerns.