Empathy and the somatotopic auditory mirror system in humans
Empathy and the somatotopic auditory mirror system in humans
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DOI：
10.1016/j.cub.2006.07.072
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发表时间：
2006-09-19
期刊：
影响因子：
9.2
通讯作者：
Keysers, Christian
中科院分区：
文献类型：
--
作者：
Gazzola, Valeria;Aziz-Zadeh, Lisa;Keysers, Christian
如果我们只能听到别人的行为，我们如何理解他们的行为？听觉镜像神经元在猴子执行手或嘴动作时以及在它们听到类似动作的声音时都会做出反应[1，2]。这个系统可能对听觉动作理解和语言进化至关重要[1-6]。初步证据表明，类似的系统可能存在于人类[7-10]。利用功能磁共振成像，我们寻找了在运动执行过程中以及当个体听到同一效应器发出的动作声音时都会做出反应的大脑区域。我们发现，在这两种情况下，左半球的颞顶运动前电路被激活，为人类的听觉镜像系统提供证据。在左前运动皮层，还观察到一个躯体定位模式的激活：背侧集群更多地参与在听和执行的手的行动，和腹侧集群更多地参与在听和执行的嘴的行动。这个系统的大部分似乎是多模式的，因为它也对类似的行为做出反应。最后，在同理心量表上得分较高的人更强烈地激活了这个系统，增加了运动镜像系统和同理心之间可能存在联系的证据。
How do we understand the actions of other individuals if we can only hear them? Auditory mirror neurons respond both while monkeys perform hand or mouth actions and while they listen to sounds of similar actions [1, 2]. This system might be critical for auditory action understanding and language evolution [1-6]. Preliminary evidence suggests that a similar system may exist in humans [7-10]. Using fMRI, we searched for brain areas that respond both during motor execution and when individuals listened to the sound of an action made by the same effector. We show that a left hemispheric temporo-parieto-premotor circuit is activated in both cases, providing evidence for a human auditory mirror system. In the left premotor cortex, a somatotopic pattern of activation was also observed: A dorsal cluster was more involved during listening and execution of hand actions, and a ventral cluster was more involved during listening and execution of mouth actions. Most of this system appears to be multimodal because it also responds to the sight of similar actions. Finally, individuals who scored higher on an empathy scale activated this system more strongly, adding evidence for a possible link between the motor mirror system and empathy.