Infants' experience-dependent processing of male and female faces: Insights from eye tracking and event-related potentials
Infants' experience-dependent processing of male and female faces: Insights from eye tracking and event-related potentials
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DOI：
10.1016/j.dcn.2013.09.005
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发表时间：
2014-04-01
影响因子：
4.7
通讯作者：
Nelson, Charles A.
中科院分区：
文献类型：
--
作者：
Righi, Giulia;Westerlund, Alissa;Nelson, Charles A.
本研究旨在探讨婴儿对男性面孔和女性面孔的加工特点。我们使用事件相关电位（ERP）启动任务，以及视觉配对比较（VPC）眼动追踪任务，以探讨如何7个月大的“女性专家”婴儿在他们的反应不同性别的面孔。女性面孔比男性面孔诱发更大的N290振幅。此外，婴儿只对女性面孔表现出启动效应，与启动的女性面孔相比，N290对新女性的负面影响更大。VPC实验旨在测试婴儿是否能够可靠地区分两个女性和两个男性面孔。分析表明，婴儿能够区分两种性别的面孔。本研究的结果表明，7个月奥尔兹与大量的女性面孔的经验，显示出加工优势，形成一个神经表征的女性面孔，相比，男性面孔。然而，对重复女性面孔的神经敏感性增强并不是因为婴儿无法区分男性面孔。相反，这两个任务的结果表明，女性面孔的差异处理可能是专家级处理的标志。(C)2013作者由爱思唯尔有限公司出版。保留所有权利。
The goal of the present study was to investigate infants' processing of female and male faces. We used an event-related potential (ERP) priming task, as well as a visual-paired comparison (VPC) eye tracking task to explore how 7-month-old "female expert" infants differed in their responses to faces of different genders. Female faces elicited larger N290 amplitudes than male faces. Furthermore, infants showed a priming effect for female faces only, whereby the N290 was significantly more negative for novel females compared to primed female faces. The VPC experiment was designed to test whether infants could reliably discriminate between two female and two male faces. Analyses showed that infants were able to differentiate faces of both genders.The results of the present study suggest that 7-month olds with a large amount of female face experience show a processing advantage for forming a neural representation of female faces, compared to male faces. However, the enhanced neural sensitivity to the repetition of female faces is not due to the infants' inability to discriminate male faces. Instead, the combination of results from the two tasks suggests that the differential processing for female faces may be a signature of expert-level processing. (C) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.