畸变汉字语义启动的ERP效应  

ERP Effect of Twirled Chinese Characters in Low Frequency Word Recognition

作　　者：舒德华[1] 王权红[1] 

机构地区：[1]西南大学心理学学院 认知与人格教育部重点实验室,重庆400715

出　　处：《现代生物医学进展》2012年第12期2368-2374,共7页Progress in Modern Biomedicine

基　　金：国家自然科学基金项目(30870756);西南大学211工程国家重点学科建设项目(NSKD08009)

摘　　要：运用事件相关电位技术,采用词汇判断作业,考察字形畸变和语境对低频汉字识别的影响。行为结果显示,启动效应的主效应显著,启动条件和字形畸变的交互作用显著。脑电结果显示,150-300ms窗口,字形畸变的主效应显著。300-450ms时间窗口,启动效应的主效应显著。靶字畸变和靶字清晰条件下,均得到了语义相关和语义无关条件的显著差异。得出结论,汉字通透性是影响汉字加工的重要因素。RP与视知觉分析有关,N400和语义的自动加工有关。In use of ERP technique, the present study invstigated the effects of twirled Chinese characters and semantic priming in low frequency word recognition. Twenty native Chinese undergraduates from Southwest University participated in the experiment during which they were instructed to make a yes,no distinction. The behavioral data showed that twirled Chinses characters were more difficult to be idendified than normal words. At 150-300ms interval, the main effect of twirled word was significant. At 300-450ms interval, the main effect of semantic priming was significant. These findings supported that space transparency plays a leading role in word recognition. RP reflects a visual structural step in the perceptual anslysis. N400 was related to automatic semantic activation.

关 键 词：ERP 语义启动 字形畸变 

分 类 号：R395[哲学宗教—心理学] R395.5[医药卫生—医学心理学]