Exploring the functional architecture of person recognition system with event-related potentials in a within- and cross-domain self-priming of faces
Exploring the functional architecture of person recognition system with event-related potentials in a within- and cross-domain self-priming of faces
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DOI：
10.1016/j.neuropsychologia.2005.03.016
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发表时间：
2005-01-01
期刊：
影响因子：
2.6
通讯作者：
Bruyer, R
中科院分区：
文献类型：
--
作者：
Jemel, B;Pisani, M;Bruyer, R
在本文中，我们通过研究事件相关电位（ERP）的域内和跨域自启动效应的发生、幅度和头皮分布，探讨了人物识别系统的功能特性。与中性或不相关素数之前的曝光相比，通过预先暴露同一个人的脸部（域内自启动）或姓名（跨域自启动），可以增强对名人退化图片的识别。 ERP结果首先表明，N170成分对著名面部目标的幅度受到域内和跨域自启动的调节，这表明N170成分不仅会受到自上而下的影响，而且这种自上而下的效应是跨领域的。其次，与我们的行为数据类似，后来对名人面孔的 ERP 在域内表现出比跨域条件更大的 ERP 自启动效应。此外，目前的数据在两个拓扑和时间上重叠的启动敏感 ERP 组件之间分离：第一个组件在早期出现时具有强烈的后验分布，无论重复的面孔是否熟悉，更多地受到域内启动的调节。第二个组成部分具有相对均匀的头皮分布，通过熟悉面孔的域内和跨域启动进行调节。此外，没有证据表明 ERP 在跨域条件下对不熟悉的面部目标产生调节。总之，我们的研究结果表明，可能由不同的大脑位点介导的多种神经认知事件有助于面部启动效应。 (c) 2005 Elsevier Ltd. 保留所有权利。
In this paper, we explored the functional properties of person recognition system by investigating the onset, magnitude, and scalp distribution of within- and cross-domain self-priming effects on event-related potentials (ERPs). Recognition of degraded pictures of famous people was enhanced by a prior exposure to the same person's face (within-domain self-priming) or name (cross-domain self-priming) as compared to those preceded by neutral or unrelated primes. The ERP results showed first that the amplitude of the N170 component to famous face targets was modulated by within- and cross-domain self-priming, suggesting not only that the N170 component can be affected by top-down influences but also that this top-down effect crosses domains. Second, similar to our behavioral data, later ERPs to famous faces showed larger ERP self-priming effects in the within-domain than in the cross-domain condition. In addition, the present data dissociated between two topographically and temporally overlapping priming-sensitive ERP components: the first one, with a strongly posterior distribution arising at an early onset, was modulated more by within-domain priming irrespective whether the repeated face was familiar or not. The second component, with a relatively uniform scalp distribution, was modulated by within- and cross-domain priming of familiar faces. Moreover, there was no evidence for ERP-induced modulations for unfamiliar face targets in the cross-domain condition. To.-ether, our findings suggest that multiple neurocognitive events that are possibly mediated by distinct brain loci contribute to face priming effects. (c) 2005 Elsevier Ltd. All rights reserved.