Electrophysiological concomitants of pupillary synchrony
Electrophysiological concomitants of pupillary synchrony
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DOI：
10.1111/psyp.14405
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发表时间：
2023-08-04
期刊：
影响因子：
3.7
通讯作者：
Reed，Catherine L.
中科院分区：
文献类型：
--
作者：
Hartley，Alan A.;Chitre，Aditi M.;Reed，Catherine L.
瞳孔同步或传染是在二元相互作用中自动无意识地模仿瞳孔扩张。本实验探讨了与瞳孔同步相关的电生理事件相关电位(ERP)。人工瞳孔(黑点)被叠加在部分面部(眼睛、鼻子、眉毛)或随机纹理上。观察者被要求判断圆点的大小(大、中或小)。有明显的证据表明，观察者的瞳孔同步放大到较大的点而不是较小或中等的点。在整个实验过程中，瞳孔的同步性增加了，在面部和纹理上都发现了这一点。当刺激为有人工瞳孔的部分人脸时，在P250和P3时，出现与靶点大小相关的事件相关电位活动。还发现了一个面部特异的N170。当刺激为随机带点纹理时，在刺激后1 40~2 0 0 ms的时间间隔内，在P1出现事件相关电位活动。结合瞳孔测量法使用事件相关电位的结果显示，面部的结果与对瞳孔同步性的社会解释一致，而对纹理的结果与局部亮度解释一致。
Pupillary synchrony or contagion is the automatic unconscious mimicry of pupil dilation in dyadic interactions. This experiment explored electrophysiological event‐related potential (ERP) concomitants of pupillary synchrony. Artificial pupils (black dots) were superimposed on either partial faces (eyes, nose, brow) or random textures. Observers were asked to judge dot size (large, medium, or small). There was clear evidence of pupillary synchrony with observer pupil dilation greater to large dots than to small or medium dots. The pupillary synchrony increased in magnitude throughout the trial and was found both with faces and with textures. When the stimuli were partial faces with artificial pupils (dots), there was ERP activity related to target dot size in the period at P250 and P3. A face specific N170 was also found. When the stimuli were random textures with dots, there was ERP activity at P1 and in the interval from 140 to 200 ms post‐stimulus onset. The use of ERP with pupillometry revealed results for faces that were consistent with a social explanation of pupillary synchrony whereas results for textures were consistent with a local luminance explanation.