Affective facial expression processing in young children who have experienced maltreatment during the first year of life: An event-related potential study
Affective facial expression processing in young children who have experienced maltreatment during the first year of life: An event-related potential study
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DOI：
10.1017/s0954579411000125
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发表时间：
2011-05-01
影响因子：
3.3
通讯作者：
Cicchetti, Dante
中科院分区：
文献类型：
--
作者：
Curtis, W. John;Cicchetti, Dante
本研究采用事件相关电位（ERPs）技术，探讨了42个月时受虐待儿童和非受虐待儿童面部情绪加工的神经相关性。事件相关电位引起的，而儿童被动地观看标准化的女性模特的照片构成愤怒，快乐，中性的面部表情进行了检查，虐待（N = 46）和nonmaltreated（N = 25）儿童之间的差异进行了报道。确定了三个枕部成分（P1，N170和P400）和四个额中央成分（N150，P240，Nc和一个正慢波[PSW]）。研究结果显示，虐待儿童有更大的P1和P400振幅在愤怒的面部影响相比，其他情绪，相比nonmaltreated儿童。在虐待组中，N170振幅对快乐的反应比对愤怒的反应更大。对于P240的组成部分，虐待儿童有更大的幅度在响应愤怒的面部表情相对于快乐，而儿童在nonmaltreated组有更大的P240幅度在响应快乐相对于愤怒的面部影响。此外，nonmaltreated组有更大的PSW振幅在愤怒的面部表情，而那些在maltreated组表现出更大的PSW振幅高兴的面部表情。研究结果进一步支持了这一假设，即虐待的经历和虐待家庭中主要的负面情绪基调改变了与面部情绪识别和处理相关的神经系统的功能。这些结果强调了早期预防干预的重要性，重点是对那些在生命早期经历过虐待的儿童进行情感干预。
This study employed event-related potentials (ERPs) to investigate the neural correlates of facial affect processing in maltreated and nonmaltreated children at 42 months of age. ERPs elicited while children passively viewed standardized pictures of female models posing angry, happy, and neutral facial expressions were examined, and differences between maltreated (N = 46) and nonmaltreated (N = 25) children were reported. Three occipital components (P1, N170, and P400) and four frontal-central components (N150, P240, Nc, and a positive slow wave [PSW]) were identified. Findings revealed that maltreated children had greater P1 and P400 amplitude in response to angry facial affect compared to other emotions, and compared to nonmaltreated children. N170 amplitude was greater in response to happy compared to angry in the maltreated group. For the P240 component, maltreated children had greater amplitude in response to angry facial expressions relative to happy, whereas children in the nonmaltreated group had greater P240 amplitude in response to happy relative to angry facial affect. Further, the nonmaltreated group had greater PSW amplitude in response to angry facial affect, whereas those in the maltreated group showed greater PSW amplitude to happy facial expressions. The results provided further support for the hypothesis that the experience of maltreatment and the predominantly negative emotional tone in maltreating families alters the functioning of neural systems associated with the identification and processing of facial emotion. These results exemplify the importance of early preventive interventions focused on emotion for children who have experienced maltreatment early in life.