Repetitive TMS over posterior STS disrupts perception of biological motion
Repetitive TMS over posterior STS disrupts perception of biological motion
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DOI：
10.1016/j.visres.2005.05.027
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发表时间：
2005-10-01
期刊：
影响因子：
1.8
通讯作者：
Pascual-Leone, A
中科院分区：
文献类型：
--
作者：
Grossman, ED;Battelli, L;Pascual-Leone, A
生物运动知觉是对稀疏点显示的人类动作的识别，由包括人类后上级颞沟（pSTS）在内的大脑区域网络支持。我们已经使用重复经颅磁刺激（rTMS）暂时中断皮质内的pSTS的活动，随后测量生物运动的敏感性。灵敏度进行了测量规范（直立）点光动画和动画反转180度，一个操纵，使生物运动更难以识别。观察者对pSTS刺激后直立生物运动的敏感性明显降低。相比之下，在pSTS刺激后，反向生物运动的性能保持正常，并且在视觉运动敏感区MT+/V5上刺激后，直立和反向生物运动的性能保持正常。在与以前的脑成像结果，我们的研究结果表明，正常运作的后STS是需要完整的感知生物运动。(c)2005爱思唯尔有限公司保留所有权利。
Biological motion perception, the recognition of human action depicted in sparse dot displays, is supported by a network of brain areas including the human posterior superior temporal sulcus (pSTS). We have used repetitive transcranial magnetic stimulation (rTMS) to temporarily disrupt cortical activity within the pSTS and subsequently measured sensitivity to biological motion. Sensitivity was measured for canonical (upright) point-light animations and for animations inverted 180 deg, a manipulation that renders biological motion more difficult to recognize. Observers were markedly less sensitive to upright biological motion following pSTS stimulation. In contrast, performance remained normal for inverted biological motion following pSTS stimulation, and normal for upright and inverted biological motion following stimulation over visual motion sensitive area MT+/V5. In connection with previous brain imaging results, our findings demonstrate that normal functioning of the posterior STS is required for intact perception of biological motion. (c) 2005 Elsevier Ltd. All rights reserved.