Emotional interference in obsessive-compulsive disorder: a neuropsychological study using optimized emotional Stroop...

Area of Science:

• Cognitive Psychology
• Clinical Psychology
• Neuroscience

Background:

• The threat-relatedness hypothesis posits that threat and associated cognitive processes are central to obsessive-compulsive disorder (OCD).
• Previous research on attention bias in OCD using the emotional Stroop test has yielded equivocal results, potentially due to methodological limitations like lexical differences in word stimuli.

Purpose of the Study:

• To investigate attention bias in OCD patients using an optimized emotional Stroop test with lexically matched words.
• To determine if attention bias is specific to OCD-relevant emotional stimuli and if it correlates with symptomatic status.

Main Methods:

• Employed an optimized emotional Stroop test and a color-Stroop test.
• Examined 50 OCD patients (23 washers, 27 checkers) and 50 matched healthy controls.
• Assessed both clinically symptomatic and remitted OCD patients.

Main Results:

• OCD patients exhibited significantly higher attention bias exclusively for negative OCD-related stimuli.
• This heightened bias was observed in symptomatic patients but not in remitted patients.
• No significant correlations were found between attention bias and other illness-related variables like age at onset, illness duration, or medication dosage.

Conclusions:

• Findings suggest a selective emotional attention bias for OCD-relevant stimuli in patients.
• This bias appears to be linked to the symptomatic status of the disorder.
• The results align with and support the threat-relatedness hypothesis in understanding OCD.