Development of a computer-based behavioral assessment of checking behavior in obsessive-compulsive disorder
Development of a computer-based behavioral assessment of checking behavior in obsessive-compulsive disorder
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DOI：
10.1016/j.comppsych.2008.12.001
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发表时间：
2010-01-01
影响因子：
7.3
通讯作者：
Kim, Chan-Hyung
中科院分区：
文献类型：
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作者：
Kim, Kwanguk;Kim, Sun I.;Kim, Chan-Hyung
目的：本研究的目的是开发和获得初步的心理测量数据，以计算机为基础的行为测量的强迫检查行为的强迫症（OCD）患者的样本。方法：我们研究了一种新的行为测量在30例强迫症患者和27名匹配的健康对照组的性能。在计算机化的评估中，参与者使用操纵杆和头戴式显示器在两个虚拟环境（家庭和办公室）中导航。实验分为三个阶段：训练阶段、分心阶段和主要任务阶段。在训练和分散注意力阶段之后，参与者被指示自由地检查虚拟环境，就像他们在自然环境中一样。本研究的主要因变量包括检查行为的频率和持续时间的几个指标。我们通过将新的行为测量与标准化的自我报告和访谈者评定的测量进行比较来检验任务的结构效度。结果：结果表明：（1）强迫症患者与对照组相比表现出更大的强迫检查问题，（2）任务的表现与自我报告的症状和与强迫症相关的访谈者评定的测量呈正相关。这项研究提供了初步的数据，支持使用这个任务作为一个新的可能的行为测量强迫症的强迫检查行为。如果我们将传统的行为学研究与这种新颖的、生态学有效的方法相结合，它将在临床和研究环境中改善对强迫症的评估。(C)Elsevier Inc.版权所有
Objective: The goal of the current study was to develop and obtain preliminary psychometric data for a computer-based behavioral measure of compulsive checking behavior in a sample of patients with obsessive-compulsive disorder (OCD).Method: We examined performance on a novel behavioral measure in 30 patients with OCD and 27 matched healthy controls. In the computerized assessment, participants navigated through two virtual environments (home and office) using a joystick and head-mounted display. The experiment consisted of three phases: training, distraction, and the main task. After the training and distraction phases, participants were instructed to check the virtual environments freely as if they were in their natural environment. Primary dependent variables in the current study included several indices of frequency and duration of checking behaviors. We examined construct validity for the task by comparing the novel behavioral measures with standardized self-report and interviewer-rated measures.Results: Results indicated that (1) OCD patients demonstrated significantly greater problems with compulsive checking compared to controls, and (2) performance on the task was positively correlated with both self-reported symptoms and interviewer-rated measures associated with OCD.Conclusions: This study provides preliminary data to support the use of this task as a new possible behavioral measure of compulsive checking behavior in OCD. If we merge the traditional behavioral research with this novel and ecologically valid method, it could improve the assessment of OCD in both clinical and research setting. (C) Elsevier Inc. All rights reserved