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Development and validation of a computer-based measure of symmetry and arranging behavior in obsessive–compulsive disorder: A preliminary study

 Daeyoung Roh ; Kwanguk Kim ; Chan-Hyung Kim ; Sun I. Kim ; Jhin-Goo Chang 
 Comprehensive Psychiatry, Vol.54(7) : 885~892, 2013 
Journal Title
 Comprehensive Psychiatry 
Issue Date
OBJECTIVE: While compulsive ordering and arranging, and a preoccupation with symmetry are common presentations of obsessive-compulsive disorder (OCD), little attention has been given to these types of symptoms in the assessment of patients with OCD. The goal of the present study was to develop and evaluate psychometric properties for the objective and quantitative measurement of compulsive symptoms related to symmetry and arranging. METHODS: Thirty-five normal volunteers performed computer-simulated environment tasks under four different conditions with or without a target and distraction. Primary dependent variables included several indices of time and manipulation of arranging behaviors. We evaluated the validity of the task by comparing the novel behavioral measures with standardized measures such as the Symmetry, Ordering and Arranging Questionnaire (SOAQ), Obsessive Compulsive Inventory-Revised (OCI-R), Beck Depression Inventory (BDI), Beck Anxiety Inventory (BAI), Barratt Impulsiveness Scale (BIS-11), and Quality of Life Scale (WHOQOL). RESULTS: We found a significant positive correlation between the arrangement time (time to complete the task) with the SOAQ score and the "ordering" subscore of the OCI-R. In addition, the number of manipulations was positively correlated with the SOAQ score and the "ordering" subscore of the OCI-R. There were no significant correlations between behavioral parameters and other scales measuring constructs less relevant to the symptoms of OCD related to ordering/symmetry. There was only a significant main effect of the target on the arrangement time. CONCLUSION: This study demonstrates the good convergent and discriminant validity of this task as a novel behavioral measure for the assessment of arranging compulsion symptoms. We can infer from the results that subjects are likely to spend more time in compulsive arranging when the target for the task is given.
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1. 연구논문 > 1. College of Medicine > Dept. of Psychiatry
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