对交流手势的快速神经辨别
Rapid neural discrimination of communicative gestures.
作者信息
Redcay Elizabeth, Carlson Thomas A
机构信息
Department of Psychology, University of Maryland, College Park, MD 20742, USA, Perception in Action Research Centre & Department of Cognitive Sciences, Macquarie University, Sydney, NSW 2109, Australia, and Centre for Cognition & Its Disorders, Macquarie University, Sydney, NSW 2109, Australia
Department of Psychology, University of Maryland, College Park, MD 20742, USA, Perception in Action Research Centre & Department of Cognitive Sciences, Macquarie University, Sydney, NSW 2109, Australia, and Centre for Cognition & Its Disorders, Macquarie University, Sydney, NSW 2109, Australia Department of Psychology, University of Maryland, College Park, MD 20742, USA, Perception in Action Research Centre & Department of Cognitive Sciences, Macquarie University, Sydney, NSW 2109, Australia, and Centre for Cognition & Its Disorders, Macquarie University, Sydney, NSW 2109, Australia.
出版信息
Soc Cogn Affect Neurosci. 2015 Apr;10(4):545-51. doi: 10.1093/scan/nsu089. Epub 2014 Jun 23.
Humans are biased toward social interaction. Behaviorally, this bias is evident in the rapid effects that self-relevant communicative signals have on attention and perceptual systems. The processing of communicative cues recruits a wide network of brain regions, including mentalizing systems. Relatively less work, however, has examined the timing of the processing of self-relevant communicative cues. In the present study, we used multivariate pattern analysis (decoding) approach to the analysis of magnetoencephalography (MEG) to study the processing dynamics of social-communicative actions. Twenty-four participants viewed images of a woman performing actions that varied on a continuum of communicative factors including self-relevance (to the participant) and emotional valence, while their brain activity was recorded using MEG. Controlling for low-level visual factors, we found early discrimination of emotional valence (70 ms) and self-relevant communicative signals (100 ms). These data offer neural support for the robust and rapid effects of self-relevant communicative cues on behavior.
人类倾向于社交互动。在行为上，这种倾向在与自我相关的交际信号对注意力和感知系统产生的快速影响中很明显。对交际线索的处理会调动广泛的脑区网络，包括心理化系统。然而，相对较少的研究考察了与自我相关的交际线索的处理时间。在本研究中，我们使用多变量模式分析（解码）方法对脑磁图（MEG）进行分析，以研究社交交际行为的处理动态。24名参与者观看了一名女性执行各种动作的图像，这些动作在包括自我相关性（对参与者而言）和情感效价在内的一系列交际因素上有所不同，同时使用MEG记录他们的大脑活动。在控制低水平视觉因素的情况下，我们发现了对情感效价（70毫秒）和与自我相关的交际信号（100毫秒）的早期辨别。这些数据为与自我相关的交际线索对行为产生的强大而快速的影响提供了神经学支持。
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