Brock University, Canada.
Brock University, Canada.
Biol Psychol. 2024 Mar;187:108771. doi: 10.1016/j.biopsycho.2024.108771. Epub 2024 Mar 7.
The ability to detect and recognize facial emotions emerges in childhood and is important for understanding social cues, but we know relatively little about how individual differences in temperament may influence early emotional face processing. We used a sample of 419 children (M = 10.57 years, SD = 1.75; 48% female; 77% White) to examine the relation between temperamental shyness and early stages of emotional face processing (assessed using the P100 and N170 event-related potentials) during different facial expressions (neutral, anger, fear, and happy). We found that higher temperamental shyness was related to greater P100 activation to faces expressing anger and fear relative to neutral faces. Further, lower temperamental shyness was related to greater N170 activation to faces expressing anger and fear relative to neutral faces. There were no relations between temperamental shyness and neural activation to happy faces relative to neutral faces for P100 or N170, suggesting specificity to faces signaling threat. We discuss findings in the context of understanding the early processing of facial emotional display of threat among shy children.
识别和感知面部情绪的能力在儿童时期逐渐发展，并对理解社交线索至关重要。然而，我们对于气质个体差异如何影响早期情绪面孔处理知之甚少。我们使用了一个由 419 名儿童组成的样本（M = 10.57 岁，SD = 1.75；48%为女性；77%为白人），研究了气质害羞与情绪面孔处理的早期阶段（通过 P100 和 N170 事件相关电位评估）之间的关系，这些儿童在不同的面部表情（中性、愤怒、恐惧和快乐）下会表现出不同的情绪。我们发现，相对于中性面孔，更高的气质害羞与对表达愤怒和恐惧的面孔的 P100 激活增加有关。此外，相对于中性面孔，较低的气质害羞与对表达愤怒和恐惧的面孔的 N170 激活增加有关。在 P100 或 N170 中，气质害羞与快乐面孔相对于中性面孔的神经激活之间没有关系，这表明对表达威胁的面孔具有特异性。我们在理解害羞儿童对面部威胁表情的早期处理的背景下讨论了这些发现。
