Electrophysiological responses to violations of expectation from eye gaze and arrow cues.
Electrophysiological responses to violations of expectation from eye gaze and arrow cues.
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DOI：
10.1093/scan/nss024
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发表时间：
2013-06
影响因子：
4.2
通讯作者：
J. Tipples;P. Johnston;Angela K Mayes
中科院分区：
文献类型：
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作者：
J. Tipples;P. Johnston;Angela K Mayes
分离大脑中特定于人类行为的过程是社会神经科学的一个关键目标。目前的研究试图通过比较凝视提示和箭头提示的效果来测试最近发现的对意外的人类凝视做出反应的增强的负事件相关电位是否是眼睛凝视刺激所特有的。当参与者(N=30)观察到一个虚拟演员或一个箭头凝视(或指向)闪烁的棋盘(物体一致)或远离(物体不一致)时，记录事件相关电位。对于眼睛凝视和箭头刺激，与物体一致试验相比，对物体不一致反应的增强负事件相关电位(N300)被记录下来。这些发现被解释为反映了检测意外事件的领域通用机制。
Isolating processes within the brain that are specific to human behavior is a key goal for social neuroscience. The current research was an attempt to test whether recent findings of enhanced negative ERPs in response to unexpected human gaze are unique to eye gaze stimuli by comparing the effects of gaze cues with the effects of an arrow cue. ERPs were recorded while participants (N = 30) observed a virtual actor or an arrow that gazed (or pointed) either toward (object congruent) or away from (object incongruent) a flashing checkerboard. An enhanced negative ERP (N300) in response to object incongruent compared to object congruent trials was recorded for both eye gaze and arrow stimuli. The findings are interpreted as reflecting a domain general mechanism for detecting unexpected events.