.Neurosci.：找到人脑中存在镜像神经元证据赵晨光
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镜像神经元1992年首次在猴子大脑中发现，这种神经元不只在猴子自己做动作的时候会活化，在猴子只是看到别只猴子或别人做动作的时候也会活化。镜像神经元主要是在脑中投射看到的行为或动作，使之感同身受。但是一直没有确凿的证据证明人脑中也存在镜像神经元。在12日的《神经科学杂志》上，英国伦敦大学科学家的研究为人脑中存在镜像神经元提供了强有力的证据。
英国伦敦大学詹姆斯·基勒领导的研究小组利用功能性磁振造影(fMRI,functional MRI) 技术检查人脑中镜像神经元存在的迹象。志愿者被分为两组，一组执行用手指拉动拉环的动作，另一组观看别人演示这个动作。结果表明两组志愿者大脑额下回同样存在神经冲动。这是科学家首次在人脑中发现这一现象。（生物谷Bioon.com）
生物谷推荐原始出处：
The Journal of Neuroscience, August 12, 2009, 29(32):10153-10159; doi:10.1523/JNEUROSCI.2668-09.2009
Evidence of Mirror Neurons in Human Inferior Frontal Gyrus
James M. Kilner,1 Alice Neal,1 Nikolaus Weiskopf,1 Karl J. Friston,1 and Chris D. Frith1,2
1The Wellcome Trust Centre for Neuroimaging, Institute of Neurology, UCL, London WC1N 3BG, United Kingdom, and 2Niels Bohr Project "Interacting Minds," Center of Functionally Integrative Neuroscience, University of Aarhus, 8000 ?rhus, Denmark
There is much current debate about the existence of mirror neurons in humans. To identify mirror neurons in the inferior frontal gyrus (IFG) of humans, we used a repetition suppression paradigm while measuring neural activity with functional magnetic resonance imaging. Subjects either executed or observed a series of actions. Here we show that in the IFG, responses were suppressed both when an executed action was followed by the same rather than a different observed action and when an observed action was followed by the same rather than a different executed action. This pattern of responses is consistent with that predicted by mirror neurons and is evidence of mirror neurons in the human IFG.
