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Memory deficits in patients with DSM-IV obsessive-compulsive disorder.
W Zitterl1, C Urban, L Linzmayer
1University of Vienna, Department of Psychiatry, Vienna, Austria.
Psychopathology
|April 24, 2001
Summary
Obsessive-compulsive disorder (OCD) is linked to memory deficits and lower confidence in memory recall. These cognitive impairments may contribute to persistent checking rituals in OCD patients.
Area of Science:
- Neuropsychology
- Cognitive Psychology
- Psychiatry
Background:
- Obsessive-compulsive disorder (OCD) is characterized by obsessions and compulsions, often involving doubt and checking rituals.
- Existing theories suggest memory deficits and metacognitive factors, like memory confidence, may underlie obsessional doubt.
Purpose of the Study:
- To investigate memory functioning and self-perceived memory ability in non-depressed OCD patients.
- To compare cognitive and metacognitive memory aspects between OCD patients and healthy controls.
Main Methods:
- Neuropsychological testing was conducted on 27 non-depressed OCD patients and 27 healthy controls.
- Memory performance was assessed using the Lern- und Gedächtnistest (LGT-3) and Corsi Block-Tapping Test.
- Self-reported confidence in memory ability was also evaluated.
Main Results:
- OCD patients exhibited significant deficits in immediate and intermediate nonverbal memory.
- Contrary to predictions, OCD patients also showed impairments in general and verbal memory.
- Patients with OCD reported lower confidence in their memory abilities compared to controls.
Conclusions:
- Obsessional doubt in OCD appears to stem from both memory deficits and reduced memory confidence.
- The findings suggest that therapeutic approaches may need to be tailored based on the predominant memory dysfunction.