Time evaluation and its accuracy in eating disorders: differences in relation to interoceptive awareness

Area of Science:

• Psychology
• Neuroscience
• Clinical Psychiatry

Background:

• Time evaluation is understudied in eating disorders (EDs), despite its link to body awareness, a key psychopathological feature.
• Body awareness in EDs is influenced by impulsivity, interoception, and working memory, all potentially affecting time perception.

Purpose of the Study:

• To evaluate time estimation and accuracy in individuals with EDs across the spectrum.
• To examine the relationship between time estimation and specific/general psychopathology in ED patients.

Main Methods:

• 215 women completed a computerized task estimating 1-minute intervals.
• Impulsivity and body awareness (self-monitoring, depersonalization, interoceptive deficit) were assessed.
• Correlations between time estimation, accuracy, and psychopathological measures were analyzed.

Main Results:

• ED patients demonstrated impaired time estimation abilities.
• Accuracy in time estimation positively correlated with compulsive self-monitoring (p=0.03).
• Anorexia nervosa patients overestimated time, while binge eating disorder patients underestimated time and showed lower accuracy.

Conclusions:

• The findings suggest an imbalanced information integration in ED patients, impacting time perception.
• Time perception warrants further investigation in ED research, including longitudinal studies on recovery and BMI changes.