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首页> 外文期刊>The European Journal of Neuroscience >Sight and sound of actions share a common neural network.
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Sight and sound of actions share a common neural network.

机译：动作的视觉和声音共享一个公共的神经网络。

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The mirror-neuron system (MNS) connects sensory information that describes an action with a motor plan for performing that action. Recently, studies using the repetition-suppression paradigm have shown that strong activation occurs in the left premotor and superior temporal areas in response to action-related, but not non-action-related, stimuli. However, few studies have investigated the mirror system by using event-related potentials (ERPs) and employing more than one sensory modality in the same sample. In the present study, we compared ERPs that occurred in response to visual and auditory actionon-action-related stimuli to search for evidence of overlapping activations for the two modalities. The results confirmed previous studies that investigated auditory MNS and extended these studies by showing that similar activity existed for the visual modality. Furthermore, we confirmed that the responses to action- and non-action-related stimuli were distinct by demonstrating that, in the case of action-related stimuli, activity was restricted mainly to the left hemisphere, whereas for non-action-related stimuli, activity tended to be more bilateral. The time course of ERP brain sources showed a clear sequence of events that subtended the processing of action-related stimuli. This activity seemed to occur in the left temporal lobe and, in agreement with findings from previous studies of the mirror-neuron network, the information involved appeared to be conveyed subsequently to the premotor area. The left temporo-parietal activity observed following a delay might reflect processing associated with stimulus-related motor preparation.
机译：镜像神经元系统（MNS）将描述动作的感觉信息与执行该动作的运动计划联系起来。最近，使用重复抑制范例的研究表明，对动作相关但非动作相关的刺激，左前运动区和颞上叶区域发生强烈激活。但是，很少有研究通过使用事件相关电位（ERP）并在同一样本中采用一种以上的感觉方式来研究镜像系统。在本研究中，我们比较了响应视觉和听觉动作/非动作相关刺激而发生的ERP，以寻找两种方式重叠激活的证据。该结果证实了先前的研究，该研究调查了听觉MNS并通过显示视觉方式存在相似的活动来扩展了这些研究。此外，我们证实了对动作和非动作相关刺激的反应是不同的，这表明在动作相关刺激的情况下，活动主要限于左半球，而对于非动作相关刺激，活动倾向于双边活动。 ERP脑源的时间过程显示出一系列清晰的事件，这些事件属于与动作相关的刺激的处理。这项活动似乎发生在左颞叶，并且与先前对镜像神经元网络的研究结果相一致，所涉及的信息似乎随后传递至运动前区。延迟后观察到的左颞顶活动可能反映了与刺激相关的运动准备有关的处理。

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