An ERP study of emotional face processing in the adult and infant brain
An ERP study of emotional face processing in the adult and infant brain
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DOI：
10.1111/j.1467-8624.2007.00994.x
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发表时间：
2007-01-01
影响因子：
4.6
通讯作者：
Nelson, Charles A.
中科院分区：
文献类型：
--
作者：
Leppanen, Jukka M.;Moulson, Margaret C.;Nelson, Charles A.
为了检查情绪处理的个体发育，从成年人和7个月大的婴儿中记录了与事件相关的潜力（ERP），同时观看可怕，快乐和中性面孔的照片。枕叶上敏感的ERP在成年人中有恐惧和中性/快乐面孔区分（N170较大而出于恐惧而较大）和婴儿（P400较大）（P400较大）。行为措施没有明显的注意偏见，而对成年人的恐惧面孔，但在婴儿中，第一个固定的持续时间比快乐的面孔更长。总之，这些结果表明，对恐惧和快乐/中性面孔进行差异化处理的基础的神经系统在生命的早期就具有功能性，并且情感因素可能在调节婴儿的面部处理中起重要作用。
To examine the ontogeny of emotional face processing, event-related potentials (ERPs) were recorded from adults and 7-month-old infants while viewing pictures of fearful, happy, and neutral faces. Face-sensitive ERPs at occipital-temporal scalp regions differentiated between fearful and neutral/happy faces in both adults (N170 was larger for fear) and infants (P400 was larger for fear). Behavioral measures showed no overt attentional bias toward fearful faces in adults, but in infants, the duration of the first fixation was longer for fearful than happy faces. Together, these results suggest that the neural systems underlying the differential processing of fearful and happy/neutral faces are functional early in life, and that affective factors may play an important role in modulating infants' face processing.