Implicit aggressiveness in patients with obsessive-compulsive disorder as assessed by an Implicit Association Test

Area of Science:

• Psychology
• Psychiatry
• Cognitive Science

Background:

• Cognitive models implicate biases like inflated responsibility in obsessive-compulsive disorder (OCD) development.
• Self-report measures of aggression in OCD are limited by social desirability and metacognitive biases.
• Previous research linked inflated responsibility to higher anger and aggression in OCD patients, particularly those with compulsive checking.

Purpose of the Study:

• To investigate latent aggression in individuals with OCD using an indirect, implicit measure.
• To extend research on aggression in OCD by employing a method less susceptible to self-report biases.
• To compare implicit aggression levels between OCD patients and healthy controls.

Main Methods:

• Fifty-eight patients diagnosed with OCD and 25 healthy controls participated.
• An Aggressiveness-Implicit Association Test (IAT) was utilized as the primary assessment tool.
• The IAT measures reaction times to assess the strength of associations between 'aggressiveness' and 'me' versus 'others'.

Main Results:

• Contrary to expectations, OCD patients with checking symptoms exhibited a more peaceful implicit self-concept compared to healthy controls.
• A significant negative correlation was observed between checking symptom severity and implicit aggressiveness within the OCD sample.
• Implicit measures of aggression revealed differences compared to controlled (self-report) aspects in patients with checking compulsions.

Conclusions:

• The study's findings on implicit aggression diverge from previous research relying solely on self-report measures.
• Individuals with OCD and checking compulsions may possess a less aggressive implicit self-concept than suggested by self-report data.
• Further investigation is warranted to fully understand aggressiveness in OCD and its therapeutic implications.