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Neuropsychological and Neurological Deficits in Obsessive-Compulsive Disorder: The Role of Comorbid Depression

International Journal of Clinical Medicine 2012年第3期3卷 200-210页

作者： Habibollah Ghassemzadeh Ramin Mojtabai nargess Karamghadiri Maryam Noroozian Vandad Sharifi nargess ebrahimkhani Depart- ment of Mental Health Johns Hopkins Bloomberg School of Public Health Baltimore USA. Roozbeh Hospital Department of Psychiatry School of Medicine Tehran University of Medical Sciences Tehran Iran

Past research has found a high prevalence of neuropsychological deficits and neurological soft signs in patients with obsessive-compulsive disorder (OCD). A close relationship between OCD and depression has also been indicated in the literature. However, many aspects of this association remain unclear. In this study we compared neuropsychological functioning and neurological soft signs of 46 OCD patients who were off psychotropic medication (21 with significant depressive symptoms and 25 without) with 25 non-patient comparison subjects. The patients were matched to the comparison group with regard to age, sex, education, marital status and handedness. There were significant differences between OCD patients and the non-patient comparison group on neuropsychological functioning but not on neurological soft signs. As far as working memory concerns there was a significant difference between the OCD depressed and non-depressed groups. But we found no evidence that the neuropsychological functions such as cognitive flexibility, problem solving and spatial perception in OCD to be attributable to comorbid depression. The pattern of neuropsychological deficits in this sample of OCD patients is suggestive of orbito-frontal as well as dorsolateral prefrontal cortical dysfunction.

关键词： Obsessive Compulsive Disorder OCD Depression Neuropsychological Assessment Neurological Assessment Soft Signs

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