An event-related potentials study of biological motion perception in humans
An event-related potentials study of biological motion perception in humans
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DOI：
10.1016/s0304-3940(03)00413-0
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发表时间：
2003-06-19
影响因子：
2.5
通讯作者：
Hiraki, K
中科院分区：
文献类型：
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作者：
Hirai, M;Fikushima, H;Hiraki, K
为了阐明生物运动感知所涉及的神经动力学，我们记录了 12 名受试者的事件相关电位。向受试者展示生物运动或乱序运动作为控制刺激。在乱序运动中，每个点具有与生物运动中相同的速度矢量，但初始起始位置是随机的。对生物运动和乱序运动的感知在 200 毫秒 (N200) 和 240 毫秒 (N240) 左右引起负峰值。此外，在右侧枕颞区，生物运动条件下的两个负峰均明显大于乱序运动条件下的负峰。根据之前的人类神经影像学研究，我们推测 N200 成分是在纹外皮层区域附近产生的，而 N240 成分是在颞上沟区域产生的。 (C) 2003 Elsevier Science Ireland Ltd. 保留所有权利。
In order to clarify the neural dynamics involved in the perception of biological motion, we recorded event-related potentials from 12 subjects. The subjects were shown biological motion or scrambled motion as a control stimulus. In the scrambled motion, each point had the same velocity vector as in the biological motion, but the initial starting positions were randomized. The perception of both biological and scrambled motion elicited negative peaks at around 200 (N200) and 240 ms (N240). Furthermore, both negative peaks were significantly larger in the biological motion condition than in the scrambled motion condition over the right occipitotemporal region. In light of previous human neuroimaging studies, we speculate that component N200 is generated near the extrastriate cortex area and N240 is generated from the superior temporal sulcus region. (C) 2003 Elsevier Science Ireland Ltd. All rights reserved.