Modulation of event-related potentials by prototypical and atypical faces
Modulation of event-related potentials by prototypical and atypical faces
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DOI：
10.1097/00001756-200006260-00014
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发表时间：
2000-06-26
期刊：
影响因子：
1.7
通讯作者：
Johnson, MH
中科院分区：
文献类型：
--
作者：
Halit, H;de Haan, M;Johnson, MH
高密度事件相关电位（HD-ERPs）被记录，而成年人被动地观看彩色图像的脸，人工（实验I）或自然（实验II）不同的配置。在实验一中，改变面孔的特征，使其不那么典型，不那么有吸引力，并没有影响N170的幅度，但影响P1和P2的幅度。在实验二中，PI和N170是较大的不具吸引力的和典型的面孔相比，有吸引力的和典型的面孔，在没有P2效应。结果表明，第一次，面部结构的变化调制ERP活动早在PI，但调制后的延迟组件取决于刺激和内隐任务的要求的性质。NeuroReport 11：1871-1875（C）2000 Lippincott威廉姆斯& Wilkins.
High-density event-related potentials (HD-ERPs) were recorded while adults passively viewed colour images of faces that artificially (Experiment I) or naturally (Experiment II) differed in configuration. In Experiment I, altering features of faces to make them less typical and less attractive did not affect the amplitude of N170, but did affect the amplitude of PI and P2. In Experiment II, the PI and N170 were larger for unattractive and atypical faces compared with attractive and typical faces, in the absence of P2 effects. The results show for the first time that variations in facial configuration modulate ERP activity as early as PI, but that modulation of later latency components depends on the nature of the stimuli and implicit task demands. NeuroReport 11:1871-1875 (C) 2000 Lippincott Williams & Wilkins.