Lobaugh Nancy J, Gibson Erin, Taylor Margot J
Sunnybrook & Women's College Health Sciences Centre, Toronto, Ontario, Canada.
Neuroreport. 2006 Feb 6;17(2):215-9. doi: 10.1097/01.wnr.0000198946.00445.2f.
The ability to properly distinguish facial emotions has a protracted development, not maturing until well into adolescence. Emotional faces activate emotion-specific neural networks in adults; whether these networks are operational in children is not known. Using an implicit face-processing task in 10-year-old children, we determined that the emotions of fear, disgust and sadness recruited distinct neural systems. These systems included a number of regions typically associated with processing emotions in adults, namely the amygdala and parahippocampal gyrus, insula and cingulate gyrus, as well as the fusiform and superior temporal gyri. Thus, in spite of immature behavioral responses to emotional faces in explicit tasks, neural networks for emotion-specific processing are present in young children.
正确区分面部情绪的能力有一个漫长的发展过程,直到青春期后期才会成熟。在成年人中,情绪化的面孔会激活特定情绪的神经网络;这些网络在儿童中是否起作用尚不清楚。通过对10岁儿童进行一项隐性面部处理任务,我们确定恐惧、厌恶和悲伤的情绪会激活不同的神经系统。这些系统包括一些通常与成年人情绪处理相关的区域,即杏仁核和海马旁回、脑岛和扣带回,以及梭状回和颞上回。因此,尽管在明确任务中对情绪化面孔的行为反应不成熟,但幼儿中存在用于特定情绪处理的神经网络。