Charting development of ERP components on face-categorization: Results from a large longitudinal sample of infants
Charting development of ERP components on face-categorization: Results from a large longitudinal sample of infants
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DOI：
10.1016/j.dcn.2020.100840
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发表时间：
2020-10-01
影响因子：
4.7
通讯作者：
Junge, Caroline
中科院分区：
文献类型：
--
作者：
Di Lorenzo, Renata;van den Boomen, Carlijn;Junge, Caroline
从婴儿期开始，EEG被广泛用于测量面部分类，即面部与非面部刺激的不同大脑活动。四个ERP成分可能是婴儿面孔敏感的信号，但反映了不同的潜在机制：P1，N290，P400，Nc。我们测试这些组件是否揭示了类似的发展模式，从婴儿早期到晚期，使用纵向数据集的80个婴儿在5个月和10个月的测试。P1、N290和Nc在5个月大的时候就已经表现出了面孔分类，这种模式并没有随着时间的推移而改变。发展是可见的，在所有组件的幅度增加，但类似的面部和非面部刺激。通过使用马尔可夫模型，我们说明，有不同的个人轨迹的脸分类组件从5至10个月的分布。尽管Nc和P1的个体轨迹变化更大，但N290揭示了一个更一致的模式：更大比例的5个月大的婴儿显示出主导群体反应;更大比例的10个月大的婴儿留在这个群体中，更大比例的5到10个月大的替代轨迹向主导群体移动。这是重要的信息，当一个人想要检查的个体差异，婴儿的ERPs有关的面孔分类。
From infancy onwards, EEG is widely used to measure face-categorization, i.e. differential brain activity to faces versus non-face stimuli. Four ERP components likely signal infants' face-sensitivity but reflect different underlying mechanisms: the P1, N290, P400, Nc. We test whether these components reveal similar developmental patterns from early to late infancy, using a longitudinal dataset of 80 infants tested at 5 and 10 months. The P1, N290, and the Nc show face-categorization already in 5-months-olds, a pattern which did not change over time. Development is visible as increased amplitudes in all components, but similar for face and non-face stimuli. By using Markov models, we illustrate that there are differences in the distribution of individual trajectories of face-categorization components from 5 to 10 months. Whereas individual trajectories appear more varied for the Nc and the P1, the N290 reveals a more consistent pattern: a larger proportion of 5-month-olds shows the dominant group response; a larger proportion of 10-month-olds remains in this group, and larger proportions of the alternative trajectories from 5- to 10-month-olds move towards the dominant group. This is vital information when one wants to examine individual differences in infant ERPs related to face-categorization.