注视方向和面部表情对注意朝向的影响
首发时间:2013-02-25
摘要:面孔的诸多信息如注视方向和面部表情都能够传递他人注意朝向的社会信号,理解他人的面部表情及注视方向的转移对于观察者来说是重要的。本文以三种表情面孔为材料,运用事件相关电位(ERP)方法探讨表情线索在注意朝向中与注视转移发生的交互及两者如何共同影响观察者的反应。结果发现:(1)线索效应在三种表情面孔的两种SOA中都出现了;(2)SOA较长时,注视线索效应量间的显著差异出现在中性和恐惧面孔、高兴和恐惧面孔间;(3)面部表情的效应出现在了表情线索诱发的P1成分上;(4)目标诱发的P1和N1说明了注视线索效应的存在及与表情间的交互。结论:表情线索先对观察者的朝向反应产生影响,随后是注视线索及其与表情线索发生的交互。
For information in English, please click here
The Influence of Facial Expression and Gaze Direction in Attentional Orienting
Abstract:Changeable aspects of faces, such as gaze shifts and facial expressions, provide human with powerful social signals that permit inferences about the internal states and intentions of others. It is important for observer to understand how facial expression and gaze direction change in social situations. In this study we use three kinds of facial expression materials and adopted Event-related Potentials to examine the impact of concurrent changes in cue and target emotion and their interactions with gaze shifts during attentional orienting. We obtained the results suggest there was gaze cuing effect in neutral and emotional faces in both stimulus onset asynchrony. But only in long stimulus onset asynchrony, the difference of cuing effect amount was significant between fearful and neutral faces as well as fearful and happy faces. But happy face isn't significantly different from neutral one. Besides behavioral data, Event-related Potentials(ERP) data showed the main effect of emotion appeared in P1 triggered by expression cues. The brain components of P1 and N1 evoked by target reflected main effect of cuing effect. The P1 and N1 amplitude was bigger when the target was opposite the position cued by faces. Total results showed that the emotion and direction of gaze separated in early processing stage. And then they interacted after full processing. This research explored the time course integration of facial expression and gaze direction which has not been studied before.
Keywords: cognitive psychology facial expression attentional orienting Event-related Potentials(ERP)
论文图表:
引用
No.****
同行评议
共计0人参与
勘误表
注视方向和面部表情对注意朝向的影响
评论
全部评论0/1000