Liu Minghui, He Xun, Rotsthein Pia, Sui Jie
a Department of Psychology , Tsinghua University , Beijing , China.
b Department of Psychology , Haerbin Normal University , Haebin , China.
Cogn Neurosci. 2016 Jan-Oct;7(1-4):37-44. doi: 10.1080/17588928.2015.1044428. Epub 2015 May 15.
We report two experiments showing that dynamically orienting our own face facilitates the automatic attraction of attention. We had participants complete a cueing task where they had to judge the orientation of a lateralized target cued by a central face that dynamically changed its orientation. Experiment 1 showed a reliable cueing effect from both self- and friend-faces at a long stimulus onset asynchrony (SOA), however, the self-faces exclusively generated a spatial cueing effect at a short SOA. In Experiment 2, event-related potential (ERP) data to the face cues showed larger amplitudes in the N1 component for self-faces relative to friend- and unfamiliar-faces. In contrast, the amplitude of the P3 component was reduced for self compared with friend- and unfamiliar-other cues. The size of the self-bias effect in N1 correlated with the strength of self-biases in P3. The results indicate that dynamic changes in the orientation of one's own face can provide a strong ecological cue for attention, enhancing sensory responses (N1) and reducing any subsequent uncertainty (P3) in decision-making.
我们报告了两项实验，结果表明动态调整自己面部的朝向有助于注意力的自动吸引。我们让参与者完成一项提示任务，在该任务中，他们必须判断由一个动态改变其朝向的中央面部所提示的侧向目标的朝向。实验1表明，在较长的刺激起始异步时间（SOA）下，来自自己的面部和朋友的面部都产生了可靠的提示效应，然而，只有自己的面部在较短的SOA下产生了空间提示效应。在实验2中，对面部提示的事件相关电位（ERP）数据显示，与朋友的面部和不熟悉的面部相比，自己的面部在N1成分中具有更大的振幅。相反，与朋友的面部和不熟悉的他人的提示相比，自己的面部在P3成分中的振幅降低。N1中自我偏向效应的大小与P3中自我偏向的强度相关。结果表明，自己面部朝向的动态变化可以为注意力提供一个强大的生态线索，增强感觉反应（N1）并减少决策中随后的任何不确定性（P3）。
