Effects of Cognitive Behavioral Therapy on Memory and Metamemory in Obsessive-Compulsive Disorders

Area of Science:

• Neuroscience
• Cognitive Psychology
• Psychiatry

Background:

• Pathological doubt in obsessive-compulsive disorder (OCD) indicates potential memory and metamemory deficits.
• The precise nature of these cognitive impairments and their response to treatment are not well understood.

Purpose of the Study:

• To investigate if memory and metamemory deficits in OCD involve encoding or retrieval processes.
• To evaluate the efficacy of cognitive behavioral therapy (CBT) in improving cognitive functions and clinical symptoms in OCD patients.

Main Methods:

• Sixty OCD patients and 60 healthy controls completed episodic memory tasks and metamemory assessments (judgment-of-learning, feeling-of-knowing).
• OCD patients underwent a 10-week CBT intervention, followed by reassessment post-intervention and at 6-month follow-up.

Main Results:

• Baseline assessment revealed significantly lower memory and metamemory performance in OCD patients compared to controls.
• Following CBT, OCD patients showed significant improvements in clinical symptoms, memory, and metamemory.
• These cognitive improvements were sustained at the 6-month follow-up.

Conclusions:

• Memory and metamemory impairments in OCD appear to involve both encoding and retrieval processes.
• Cognitive behavioral therapy (CBT) is an effective treatment for enhancing both cognitive functions and clinical outcomes in individuals with OCD.
• The positive effects of CBT on memory and metamemory are maintained long-term.