Brain activity differentiates face and object processing in 6-month-old infants
Brain activity differentiates face and object processing in 6-month-old infants
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DOI：
10.1037/0012-1649.35.4.1113
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发表时间：
1999-07-01
影响因子：
4
通讯作者：
Nelson, CA
中科院分区：
文献类型：
--
作者：
de Haan, M;Nelson, CA
事件相关电位被用来确定婴儿在面部和物体识别过程中是否像成人一样表现出大脑激活的空间和时间特征的差异。视觉处理的三个方面被确定：（a）面部与物体的区分（对于面部，枕部电极的P400潜伏期较短），（B）熟悉身份的识别（对于熟悉的刺激，额颞电极[FTE]的Nc或负分量具有较大的振幅），以及（c）编码新奇性（对于不熟悉的刺激，FTE的慢波较大）。地形的NC的类别类型的影响：熟悉的效果仅限于中线和右前颞电极的面孔，但扩展到所有的颞电极的对象。结果表明，婴儿的经验与具体的例子在类别和他们的一般类别知识影响的神经相关的视觉处理。
Event-related potentials were used to determine whether infants, like adults, show differences in spatial and temporal characteristics of brain activation during face and object recognition. Three aspects of visual processing were identified: (a) differentiation of face vs. object (P400 at occipital electrode was shorter latency for faces), (b) recognition of familiar identity (Nc, or negative component, at frontotemporal electrodes [FTEs] was of larger amplitude for familiar stimuli), and (c) encoding novelty (slow wave at FTEs was larger for unfamiliar stimuli). The topography of the Nc was influenced by category type: Effects of familiarity were limited to the midline and right anterior temporal electrodes for faces but extended to all temporal electrodes for objects. Results show that infants' experience with specific examples within categories and their general category knowledge influence the neural correlates of visual processing.