Mentalizing ability in acute and remitted anorexia nervosa

Area of Science:

• Psychiatry
• Neuroscience
• Psychology

Background:

• Mentalizing, the ability to infer mental states, is impaired in anorexia nervosa (AN).
• It remains unclear if these mentalizing deficits are state-dependent (acute AN) or trait-dependent (persistent after remission).

Purpose of the Study:

• To investigate if AN severity predicts mentalizing deficits.
• To compare mentalizing abilities in acute AN, remitted AN, and healthy controls.
• To determine if mentalizing deficits are state-like or trait-like in AN.

Main Methods:

• 161 participants (18-30 years) were grouped into acute AN (n=15), remission AN (n=64), and healthy controls (n=82).
• Participants completed demographic information and a battery of online tests and surveys assessing mentalizing.
• AN severity was measured by Body Mass Index (BMI).

Main Results:

• No significant difference in mentalizing was found between acute and remission AN groups.
• Healthy controls showed significantly better mentalizing than the remission AN group.
• Lower BMI (higher AN severity) predicted poorer objective mentalizing, but not subjective mentalizing.

Conclusions:

• Mentalizing deficits in AN do not categorically improve upon remission, suggesting they are trait-based.
• Mentalizing abilities appear to improve with increasing BMI, indicating a link to illness severity.
• These findings suggest mentalizing impairments are observable in individuals with AN irrespective of their current illness stage.