Impaired visual recognition of biological motion in schizophrenia
Impaired visual recognition of biological motion in schizophrenia
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DOI：
10.1016/j.schres.2005.04.006
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发表时间：
2005-09-15
影响因子：
4.5
通讯作者：
Park, S
中科院分区：
文献类型：
--
作者：
Kim, JJ;Doop, ML;Park, S
背景：运动知觉缺陷被认为是精神分裂症的一个重要特征，但这种缺陷的行为后果尚不清楚。生物运动是指生物产生的运动。人类的视觉系统可以快速、毫不费力地从生物运动中检测和提取与社会相关的信息。生物运动知觉的缺陷可能会对社会信息的检测和解释产生显著影响。方法：对精神分裂症患者和匹配的健康对照组进行两项视觉任务：点光源动画中描绘的人类活动的识别(生物运动任务)和涉及在背景噪声中检测分组图形的知觉控制任务(全局形式任务)。结果：精神分裂症患者在全局形式任务中的表现与对照组相当，但在生物动作任务上表现明显受损。此外，生物运动知觉缺陷与Zigler社会能力量表测量的社会功能受损有关[Zigler，E.，Levine，J.(198 1)]。精神分裂症患者的病前能力：测量的是什么？《咨询与临床心理学杂志》，49，96-105。]结论：生物运动加工缺陷可能与先前文献记载的全局运动加工缺陷有关，可能是精神分裂症患者社会功能异常的原因之一。(C)2005 Elsevier B.V.保留所有权利。
Background: Motion perception deficits have been suggested to be an important feature of schizophrenia but the behavioral consequences of such deficits are unknown. Biological motion refers to the movements generated by living beings. The human visual system rapidly and effortlessly detects and extracts socially relevant information from biological motion. A deficit in biological motion perception may have significant consequences for detecting and interpreting social information.Methods: Schizophrenia patients and matched healthy controls were tested on two visual tasks: recognition of human activity portrayed in point-light animations (biological motion task) and a perceptual control task involving detection of a grouped figure against the background noise (global-form task). Both tasks required detection of a global form against background noise but only the biological motion task required the extraction of motion-related information.Results: Schizophrenia patients performed as well as the controls in the global-form task, but were significantly impaired on the biological motion task. In addition, deficits in biological motion perception correlated with impaired social functioning as measured by the Zigler social competence scale [Zigler, E., Levine, J. (198 1). Premorbid competence in schizophrenia: what is being measured? Journal of Consulting and Clinical Psychology, 49, 96-105.].Conclusion: The deficit in biological motion processing, which may be related to the previously documented deficit in global motion processing, could contribute to abnormal social functioning in schizophrenia. (c) 2005 Elsevier B.V. All rights reserved.