Clinical validation of a virtual environment for normalizing eating patterns in eating disorders

Area of Science:

• Psychology
• Clinical Psychology
• Human-Computer Interaction

Background:

• Eating disorders (ED) are complex mental health conditions requiring innovative therapeutic approaches.
• Virtual Reality Environments (VRE) offer immersive experiences that may be leveraged for clinical interventions.
• Understanding the psychological impact of VREs on individuals with ED is crucial for therapeutic development.

Purpose of the Study:

• To clinically validate a non-immersive Virtual Reality Environment (VRE) for normalizing eating patterns in individuals with Eating Disorders (ED).
• To assess the efficacy of VRE in eliciting emotions, sense of presence, and perceived reality in ED patients and healthy controls.
• To explore the potential of VRE as a therapeutic tool for ED.

Main Methods:

• A non-immersive VRE simulating a kitchen setting was used, where participants consumed a virtual pizza.
• Presence and reality judgments were measured using Likert scale questions during the VRE experience.
• Standardized questionnaires, including the Reality Judgment and Presence Questionnaire (RJPQ) and ITC-Sense of Presence Inventory (ITC-SOPI), were administered.

Main Results:

• The VRE successfully induced a sense of presence and was perceived as real by both ED patients and healthy individuals.
• No significant differences were found between groups regarding ease of use, sense of physical space, or ecological validity of the virtual environment.
• ED patients reported heightened attention, greater emotional involvement, and increased dysphoria post-virtual eating compared to controls.

Conclusions:

• The VRE demonstrated clinical meaningfulness for ED patients, suggesting its potential as a therapeutic tool.
• The findings support the use of VREs in addressing psychological aspects of eating disorders, particularly emotional responses to food.
• Further research is warranted to optimize VREs for normalizing eating behaviors and reducing ED symptomatology.