基于词汇识别ERP数据的跨语言激活路径研究: 从二语到母语方向  

Cross-Language Activation Pathways Based on Word Recognition ERP Data:from Second Language to Native Language

作　　者：杨思琴 江铭虎[2] YANG Siqin;JIANG Minghu(School of Liberal Arts,Renmin University of China,Beijing 100872,China;School of Humanities,Tsinghua University,Beijing 100084,China)

机构地区：[1]中国人民大学文学院,北京100872 [2]清华大学人文学院,北京100084

出　　处：《中文信息学报》2024年第4期28-37,共10页Journal of Chinese Information Processing

基　　金：国家自然科学基金(62036001)。

摘　　要：该文运用事件相关电位技术(Event-Related Potentials,ERPs)探索了二语学习者在识别二语(Second Language,L2)词汇时激活母语(Native Language,L1)词汇表征的路径。研究设计了隐性启动范式来开展两个实验,通过观察被试对L1中对译词这一隐性条件的感知情况来推测激活结果。脑电结果显示,实验一的被试在执行语义判断任务时,对译词首字重复与不重复的两种情况产生了显著的N400差异,这表明被试通过概念表征激活了L1词汇表征,印证了激活路径Path-1的存在;实验二的被试在执行书写形式判断任务时,在没有语义启动的情况下,同样感知到了对译词重复这一隐性条件,这表明L2词汇表征可以直接激活L1词汇表征,从而证明了激活路径Path-2的存在。总体而言,词汇识别过程中从L2词汇表征到L1词汇表征的激活路径与修正层次模型(the Revised Hierarchical Model,RHM)描绘的词汇产出的激活路径类似。据此,该研究推测,尽管大脑在词汇识别和产出过程中采用了不同的处理机制,但在词汇的跨语言激活过程中,它们依然存在某些共通之处。This study applies ERP method to explore the pathway by which L2 learners activate their L1 lexical representations while recognizing their L2 words.Employing an implicit priming paradigm,two experiments are conducted to infer activation by observing participants'perception of the implicit repetition of translated words,which could be identified only after activating their L1 lexical representation.EEG results from Experiment 1,where participants perform a semantic relatedness judgment task,reveal a significant N400 difference between repeated and non-repeated translated words.This indicates that participants activate their L1 lexical representations through conceptual representation,confirming the existence of Path-1.In Experiment 2,where participants are engaged in an orthographic judgment task without semantic priming,they also perceive the implicit condition of word translation,suggesting direct activation of their L1 lexical representations from their L2 lexical representations,i.e.the existence of Path-2.Overall,the pathway from L2 lexical representations to L1 lexical representations during word recognition aligns with the RHM's description of word production pathways.Consequently,this study hypothesizes that although the brain employs different processing mechanisms in word recognition and production,they share commonalities during cross-language word activation.

关 键 词：词汇 激活 路径 P200 N400 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]