Negative mood induction effects on problem-solving task in women with eating disorders: a multi-method examination.

Area of Science:

• Psychology
• Psychophysiology
• Eating Disorders

Background:

• Negative affect's impact on problem-solving and psychophysiology is understudied in eating disorders.
• Eating disorders, including Binge Eating Disorder (BED), Anorexia Nervosa (AN), and Bulimia Nervosa (BN), are associated with mood disturbances.

Purpose of the Study:

• To investigate the relationship between negative affect, problem-solving abilities, and psychophysiological responses in women with BED, AN, BN, and healthy controls (HCs).
• To examine how mood induction affects problem-solving strategies in these groups.

Main Methods:

• Assessed respiratory sinus arrhythmia (RSA) and skin conductance in 56 women with BED, 12 with AN, 32 with BN, and 24 HCs.
• Utilized a negative mood induction task followed by an adapted Means Ends Problem-Solving (MEPS) task with interpersonal scenarios, including one related to binge-eating.
• Measured psychophysiological responses during baseline, mood induction, problem-solving, and recovery phases.

Main Results:

• Individuals with eating disorders reported less positive mood; those with BN and BED experienced more negative mood and binge urges compared to HCs.
• Women with BED demonstrated significantly less effective problem-solving strategies for the binge-eating scenario post-mood induction compared to HCs and BN.
• Elevated skin conductance was observed across all groups during the MEPS task and recovery; BED participants showed lower RSA levels than BN and HCs.

Conclusions:

• Findings suggest that individuals with BED experience disorder-specific problem-solving deficits following negative mood induction.
• These difficulties may contribute to the maintenance of binge-eating behaviors as a coping mechanism for stress.