Brain potentials during affective picture processing in children.
Brain potentials during affective picture processing in children.
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DOI：
10.1016/j.biopsycho.2008.11.006
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发表时间：
2009-03
影响因子：
2.6
通讯作者：
Dennis, Tracy A.
中科院分区：
文献类型：
--
作者：
Hajcak, Greg;Dennis, Tracy A.
在成年人中，情感（例如，与中性图片相比，不愉快的和愉快的）引起早期后负性（EPN）和晚期正电位（LPP）的增加;这些ERP成分的调制被认为反映了对动机显著刺激的促进处理和对动机显著刺激的增加的注意。为了确定EPN和LPP是否对儿童的情感内容敏感，记录了18名5至8岁（平均年龄= 77个月，SD = 11个月）的儿童的高密度EEG，同时他们观看了从国际情感图片系统中选择的发育适当的图片。自我报告的评价价和唤醒也得到了。与中性图片相比，情绪化图片后的EPN并不明显;然而，在愉快的图片后，枕-顶叶记录部位的最大积极性从500毫秒增加到1,000毫秒，在不愉快的图片后，从500毫秒增加到1,500毫秒。EPN和LPP之间的比较观察到的儿童和成人，情绪的发展研究的影响，进行了讨论。
In adults, emotional (e.g., both unpleasant and pleasant) compared to neutral pictures elicit an increase in the early posterior negativity (EPN) and the late positive potential (LPP); modulation of these ERP components are thought to reflect the facilitated processing of, and increased attention to, motivationally salient stimuli. To determine whether the EPN and LPP are sensitive to emotional content in children, high-density EEG was recorded from 18 children who were 5 to 8 years of age (mean age = 77 months, SD = 11 months) while they viewed developmentally appropriate pictures selected from the International Affective Picture System. Self-reported ratings of valence and arousal were also obtained. An EPN was not evident following emotional compared to neutral pictures; however, a positivity maximal at occipital-parietal recording sites was increased from 500 to 1,000 ms following pleasant pictures and from 500 to 1,500 ms following unpleasant pictures. Comparisons between the EPN and LPP observed in children and adults, and implications for developmental studies of emotion, are discussed.
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