Assessing human mirror activity with EEG mu rhythm: A meta-analysis.

Assessing human mirror activity with EEG mu rhythm: A meta-analysis.
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用EEG MU节奏评估人镜活动:一项荟萃分析。

DOI:
10.1037/bul0000031
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发表时间:
2016-03
影响因子:
22.4
通讯作者:
van IJzendoorn MH
van IJzendoorn MH
中科院分区:
心理学1区
文献类型:
--
作者:
Fox NA;Bakermans-Kranenburg MJ;Yoo KH;Bowman LC;Cannon EN;Vanderwert RE;Ferrari PF;van IJzendoorn MH

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认知神经科学的一个基本问题是大脑如何编码他人的行为和意图。近年来,我们在这个问题上的知识的一个潜在进展是在非人类灵长类动物的运动皮层中发现了镜像神经元。这些神经元对执行和观察特定类型的动作都有反应。研究人员利用这一证据来推动对人类镜像系统的研究,这表明感知和运动过程存在共同的神经代码。在用于推断人类镜像系统活动的方法中,脑电图(EEG)中称为μ节律的特定频带的变化。Mu频率在动作执行和动作观察过程中出现振幅下降(反映皮层活动)。目前的荟萃分析回顾了85项关于mu的研究(1,707名参与者),这些研究推断了人类镜像系统的活动。结果表明,在执行过程中(科恩的d = 0.46,N = 701),以及观察行动(科恩的d = 0.31,N = 1,508),证实了脑电图的镜像属性的mu的显着效果大小。一些主持人进行了检查,以确定这些影响的特异性。我们框架内的发展和功能的人类镜像系统的当前讨论这些元分析的结果,并得出结论,脑电图mu活动的变化提供了一个有效的手段,为人类神经镜像的研究。最后,提出了改进使用μ来研究人镜系统的实验和方法的建议。
A fundamental issue in cognitive neuroscience is how the brain encodes others’ actions and intentions. In recent years, a potential advance in our knowledge on this issue is the discovery of mirror neurons in the motor cortex of the nonhuman primate. These neurons fire to both execution and observation of specific types of actions. Researchers use this evidence to fuel investigations of a human mirror system, suggesting a common neural code for perceptual and motor processes. Among the methods used for inferring mirror system activity in humans are changes in a particular frequency band in the electroencephalogram (EEG) called the mu rhythm. Mu frequency appears to decrease in amplitude (reflecting cortical activity) during both action execution and action observation. The current meta-analysis reviewed 85 studies (1,707 participants) of mu that infer human mirror system activity. Results demonstrated significant effect sizes for mu during execution (Cohen’s d = 0.46, N = 701) as well as observation of action (Cohen’s d = 0.31, N = 1,508), confirming a mirroring property in the EEG. A number of moderators were examined to determine the specificity of these effects. We frame these meta-analytic findings within the current discussion about the development and functions of a human mirror system, and conclude that changes in EEG mu activity provide a valid means for the study of human neural mirroring. Suggestions for improving the experimental and methodological approaches in using mu to study the human mirror system are offered.
DOI: 10.1016/s0013-4694(98)00071-6
发表时间: 1998-10-01
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