Deficient biological motion perception in schizophrenia: results from a motion noise paradigm.
Deficient biological motion perception in schizophrenia: results from a motion noise paradigm.
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DOI：
10.3389/fpsyg.2013.00391
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发表时间：
2013
影响因子：
3.8
通讯作者：
Chen Y
中科院分区：
文献类型：
--
作者：
Kim J;Norton D;McBain R;Ongur D;Chen Y
背景：精神分裂症患者表现出知觉和认知信息处理的缺陷。然而，这是不好理解的基本知觉缺陷如何有助于更高层次的认知问题，在这种精神障碍。生物运动知觉是一种基于运动的认知识别任务，它同时依赖于基本的视觉运动加工和社会认知加工，从而为评价这两个层次的信息加工之间潜在的层次关系提供了一个有用的范式。研究方法：在这项研究中，我们设计了一个生物运动范例，其中基本的视觉运动信号进行了系统的操作，将不同水平的运动噪声。我们测量了精神分裂症患者（n = 21）和健康对照组（n = 22）在这个生物运动感知任务，以及在连贯的运动检测，心理理论，和广泛使用的生物运动识别任务的性能。结果如下：当知觉信号因噪音而中度退化时，精神分裂症患者执行生物运动知觉任务的准确性显着低于健康对照组。通过使用额外的噪声，感知信号的更大幅度的退化损害了两组的生物运动感知。患者的生物运动识别、连贯运动检测和心理理论任务的表现水平也有所降低。结论：运动-噪声生物运动范式的结果表明，在视觉运动噪声存在下，精神分裂症患者对生物运动信息的加工存在缺陷。结合较差的基本视觉运动知觉（相干运动任务）和生物运动识别的结果，基本运动信号和生物运动知觉之间的关联表明，需要将视觉运动知觉的改善纳入社会认知补救。
Background: Schizophrenia patients exhibit deficient processing of perceptual and cognitive information. However, it is not well-understood how basic perceptual deficits contribute to higher level cognitive problems in this mental disorder. Perception of biological motion, a motion-based cognitive recognition task, relies on both basic visual motion processing and social cognitive processing, thus providing a useful paradigm to evaluate the potentially hierarchical relationship between these two levels of information processing. Methods: In this study, we designed a biological motion paradigm in which basic visual motion signals were manipulated systematically by incorporating different levels of motion noise. We measured the performances of schizophrenia patients (n = 21) and healthy controls (n = 22) in this biological motion perception task, as well as in coherent motion detection, theory of mind, and a widely used biological motion recognition task. Results: Schizophrenia patients performed the biological motion perception task with significantly lower accuracy than healthy controls when perceptual signals were moderately degraded by noise. A more substantial degradation of perceptual signals, through using additional noise, impaired biological motion perception in both groups. Performance levels on biological motion recognition, coherent motion detection and theory of mind tasks were also reduced in patients. Conclusion: The results from the motion-noise biological motion paradigm indicate that in the presence of visual motion noise, the processing of biological motion information in schizophrenia is deficient. Combined with the results of poor basic visual motion perception (coherent motion task) and biological motion recognition, the association between basic motion signals and biological motion perception suggests a need to incorporate the improvement of visual motion perception in social cognitive remediation.
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影响因子：
10.6
作者：
Butler PD;Silverstein SM;Dakin SC
通讯作者：
Dakin SC
DOI：
10.1073/pnas.96.8.4724
发表时间：
1999-04-13
影响因子：
11.1
作者：
Chen, Y;Nakayama, K;Holzman, PS
通讯作者：
Holzman, PS
影响因子：
4.5
作者：
Chen, Y;Bidwell, LC;Holzman, PS
通讯作者：
Holzman, PS
影响因子：
3.7
作者：
Alexander-Bloch, Aaron F.;Vertes, Petra E.;Gogtay, Nitin
通讯作者：
Gogtay, Nitin
影响因子：
3.4
作者：
Cavanagh, P;Labianca, AT;Thornton, IM
通讯作者：
Thornton, IM