Department of Psychology, University of Hull, Hull HU6 7RX, UK.
Soc Cogn Affect Neurosci. 2013 Jun;8(5):509-14. doi: 10.1093/scan/nss024. Epub 2012 Feb 15.
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.
将大脑中特定于人类行为的过程分离出来是社会神经科学的一个关键目标。本研究试图通过比较注视线索和箭头线索的效果，来检验对意外的人类注视反应增强的负事件相关电位（ERP）是否是注视刺激所特有的。当参与者（N=30）观察虚拟演员或注视（或指向）闪烁棋盘的箭头时，记录了 ERP。与物体一致的试验相比，对物体不一致的试验，无论是注视刺激还是箭头刺激，都会记录到增强的负 ERP（N300）。研究结果被解释为反映了一种用于检测意外事件的普遍机制。
