中文听觉双字词认知中的正字法即时激活效应——来自ERP的证据

On-line Orthographic Activation Effect in Chinese Two-character Auditory Words Recognition—Evidence from ERP

目的:探讨中文听觉双字词认知中的正字法即时激活效应。方法:采用事件相关电位(ERP)技术,操纵3种双字词条件(一致性:一致、首字不一致、尾字不一致),选择9个电极,使用时间窗分析技术,以50ms为一个时间窗分析300-350ms以及375-675ms时段的脑电波。结果:对前部脑电波平均波幅进行方差分析发现,三种实验条件在575-625ms时间窗差异显著,而在625-675ms时间窗差异边缘显著。首字不一致和一致条件在575-625ms时间窗差异显著,而在625-675ms时间窗差异边缘显著。结论:在中文听觉双字词认知中可能同样存在正字法即时激活效应。

Objective： To investigate on-line orthographic activation effect in Chinese two-character auditory words recognition.Methods： Event-related potential（ERP） technology were adopted to manipulate 3 conditions（consistency： consistent,inconsistent with the first character,inconsistent with the last character）,and select nine electrodes.50ms for a time window was used to analyze the brain waves between 300-350ms and between 375-675ms.Results： Mean amplitude of frontal area in the 575-625ms time window was significantly different in three experimental conditions and the difference in 625-675ms time window was marginally significant.There were significant difference between inconsistent with the first character and consistent condition in the 575-625ms time window,but the difference was marginally significant in 625-675ms time window.Conclusion： There may also be on-line orthographic activation effect in Chinese two-character auditory words recognition.