Obsessive compulsive disorder, checking, and non-verbal memory: a neuropsychological investigation

Area of Science:

• Neuropsychology
• Cognitive Psychology
• Psychiatry

Background:

• Non-verbal and praxic memory deficits are documented in Obsessive-Compulsive Disorder (OCD).
• These memory issues may underlie doubt-related symptoms like compulsive checking.

Purpose of the Study:

• To investigate non-verbal and action memory functioning in OCD patients with checking symptoms.
• To compare memory performance between OCD patients and healthy controls.
• To explore the relationship between memory deficits, checking behaviors, and general symptom severity in OCD.

Main Methods:

• Administered neuropsychological tests assessing non-verbal memory and memory for actions.
• Included patients with OCD (predominantly checking symptoms) and matched healthy controls.

Main Results:

• Obsessive-Compulsive Disorder group exhibited significant memory impairments compared to controls.
• No direct link was found between specific memory test results and the severity of checking symptoms.
• Recognition memory deficits and immediate memory for actions were associated with overall OCD symptom severity.

Conclusions:

• Memory impairments are present in OCD, particularly in non-verbal and action recall.
• While memory deficits exist, they do not solely explain checking compulsions.
• General symptom severity in OCD is linked to specific memory recognition and immediate action memory issues.