情绪效价和注意水平对面孔倒置效应的影响-《集美大学学报（教育科学版）》

文章信息/Info

Title:: The Influence of Emotional Valence and Attention Level on Face Inversion Effect

Author(s):: LIN Guo-yao1; 2; ZHUANG Wei1; (1.Department of Psychology, Minnan Normal University, Zhangzhou 363000, China；2.School of Psychology, South China Normal University, Guangzhou 510631, China)

Keywords:: face inversion effect; emotional valence; attention level; holisticconfigural processing; local-feature-based processing

摘要:: 卡通情绪面孔为材料，通过一个脑电实验考察了情绪效价和注意水平对面孔倒置效应的影响。结果发现：倒置面孔的N170潜伏期显著大于正立面孔，且这种差异不受注意水平的影响，这说明本研究所用卡通情绪面孔可以适用于探讨面孔倒置效应；倒置愉快面孔引发的P3a波幅显著大于正立愉快面孔，这可能反映了被试在无意注意水平对倒置面孔局部特征的负性偏向；正立愉快面孔的P3b显著大于正立悲伤面孔，这可能说明正立愉快面孔获得了更强的有意注意。研究认为：情绪效价会影响面孔倒置效应，这种影响可能与注意偏向机制有关，其中面孔局部特征加工可能更容易受无意注意水平负性偏向的影响，而面孔整体构形加工可能更容易受有意注意水平正性偏向的影响。

Abstract:: This study explored the influence of emotional valence and attention level on face inversion effect through an ERP experiment with cartoon faces as experimental material. The results showed that: 1) The latency of N170 for inverted faces was significantly larger than that for upright faces regardless of the attention level, which provided further evidence for the applicability of the cartoon faces in exploring face inversion effect; 2)The amplitude of P3a for inverted happy faces was significantly larger than that for upright happy faces, which might implicate that there was negativity bias for the local-feature-based information of inverted faces; 3) The amplitude of P3b for upright happy faces was significantly larger than that for upright sad faces, which might implicate that there was positivity bias for the configural information of upright faces. The conclusion of this study were as follow: Emotional valence in the faces could influence the pattern and extent of face inversion effect; The influence of emotional valence on face inversion effect might be caused of attention bias; The processing of local-feature-based face information might more likely be affected by negativity bias under involuntary attention, while the processing of configural face information might more likely be affected by positivity bias under voluntary attention.