Communicative hand gestures and object-directed hand movements activated the mirror neuron system
Communicative hand gestures and object-directed hand movements activated the mirror neuron system
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DOI：
10.1093/scan/nsm004
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发表时间：
2007-06-01
影响因子：
4.2
通讯作者：
Haxby, James V.
中科院分区：
文献类型：
--
作者：
Montgomery, Kimberly J.;Isenberg, Nancy;Haxby, James V.
人类产生手部动作来操纵物体，但也使手部动作向彼此传达社会相关信息。镜像神经元系统（MNS）在观察和执行动作的过程中被激活。以前的神经影像学实验已经确定了顶下小叶（IPL）和额盖作为人类MNS的一部分。虽然实验表明，对象导向的手部运动驱动MNS，目前还不清楚是否沟通手势，不涉及一个对象是有效的刺激MNS。此外，目前还不清楚是否有差异激活的MNS沟通手势和对象导向的手运动。在这里，我们报告的结果的功能性磁共振成像（fMRI）的实验中，参与者观看，模仿和产生的沟通手势和对象导向的手部动作。观察和执行这两种类型的手部动作激活MNS的程度相似。这些结果表明，MNS参与观察和执行的交际手势和对象直接的手运动。
Humans produce hand movements to manipulate objects, but also make hand movements to convey socially relevant information to one another. The mirror neuron system (MNS) is activated during the observation and execution of actions. Previous neuroimaging experiments have identified the inferior parietal lobule (IPL) and frontal operculum as parts of the human MNS. Although experiments have suggested that object-directed hand movements drive the MNS, it is not clear whether communicative hand gestures that do not involve an object are effective stimuli for the MNS. Furthermore, it is unknown whether there is differential activation in the MNS for communicative hand gestures and object-directed hand movements. Here we report the results of a functional magnetic resonance imaging (fMRI) experiment in which participants viewed, imitated and produced communicative hand gestures and object-directed hand movements. The observation and execution of both types of hand movements activated the MNS to a similar degree. These results demonstrate that the MNS is involved in the observation and execution of both communicative hand gestures and object-direct hand movements.