Abstract:

In the present study we explored the cerebral mechanisms underlying self processing relative to one’s own name by recording event-related potentials (ERPS). In the experiment, pictures of big circles, small circles, and names were presented to subjects randomly, and subjects were asked to discriminate small and big circle, while names were task-irrelevant stimulus. The results showed that subject’s own name (SON) elicited larger P2 and P3 amplitudes than did famous name (FN) and unfamiliar name (UFN). While different from previous studies, present study discovered the “self name effect” on P2 amplitude, that is, self processing relative to one’s own name could occurred at not only later P3 stage but also earlier P2 stage. Therefore, self processing relative to one’s own name maybe involve early and late two different stages, and the early one maybe automatic process , while the late one maybe conscious process.

Key words: self-processing, name, event-related potential

摘要：

本研究采用事件相关电位技术（ERP）探讨了自我名字加工的神经机制。实验中向被试随机呈现大圆、小圆及名字，被试的任务是辨别大圆和小圆，名字是任务无关刺激。实验结果表明，被试自己的名字引发的P2及P3波幅都显著高于名人的名字及陌生人的名字。 与以往研究结果不同，本研究发现了P2波幅上的“自我名字效应”，即，人名相关的自我加工不仅表现在晚期成分P3上，同时还表现在早期成分P2上。所以，人名相关的自我加工过程分为早期和晚期两个加工阶段，前一个阶段可能是自动化加工，不需要意识参与，后一个阶段是意识加工。

关键词: 自我加工, 人名, 事件相关电位