汉语双字名词识别的时间进程——基于视觉单模态词形匹配任务的脑电研究  

Time Course of Two-character Nouns Recognition in Mandarin Chinese:Based on an ERP Study Using the Task of Unimodal Visual Word Form Matching

作　　者：丁彧藻 DING Yuzao(College of Foreign Languages/Center for Language Translation and Brain Cognition Research,Fujian Business University,Fuzhou Fujian 350012,China)

机构地区：[1]福建商学院外国语学院/语言、翻译和脑认知研究中心,福建福州350012

出　　处：《常熟理工学院学报》2024年第3期37-43,共7页Journal of Changshu Institute of Technology

基　　金：国家社科基金后期资助项目“汉英文字名词识别的脑电研究”(21FYYB001)。

摘　　要：书面词语的识别是阅读的基础,但是在特定实验任务下汉语双字名词各种信息加工的时间进程并不清晰。使用视觉单模态的词形匹配任务,发现在识别的早期阶段(~130-230ms),目标词和首词之间词形的不同或字的失匹配在头皮前区会引发增大的P2效应,其不受语义变量的调节,主要反映了正字法信息的加工;在N400时间窗口,真词对照条件下的目标词比语义相关条件下的目标词在顶区引发的负走向脑电波更大。这些发现说明在N400阶段,即使被试没有被明确要求关注语义,词的语义表征也被自动激活。汉语双字名词识别的时间进程较为清晰地限定在P2至N400之间。Written word recognition forms the basis for reading,yet the time course involved in processing various information of two-character Chinese nouns under specific experimental task is not very clear.Using the task of unimodal visual word form matching,it was found that in the early stage of recognition(~130-230ms),the difference or character mismatch between target words and initial words elicited an enhanced anteriorly distributed P2,which was not modulated by the semantic variable,and mainly reflected the processing of orthographic information.In the N400 time window,the target words in the unrelated condition elicited a more negatively going brain waveform distributed in the parietal region than the target words in the semantically related condition.These findings suggest that the semantic representation of the visual words could be activated automatically in the stage of N400,even when semantic processing is not explicitly required.The time course of two-character nouns recognition is limited within a clear time window from P2 to N400.

关 键 词：词形匹配 时间进程 双字名词 ERP 

分 类 号：H017[语言文字—语言学]