汉字加工中重复知盲效应的神经机制  

Neural Mechanisms of Repetition Blindness in Processing Chinese:Evidence from an ERP Study

作　　者：郭亚桥[1] 邱江[1] 王丽丽[1] 王德路[1] 张庆林[1] 

机构地区：[1]西南大学心理学院,重庆400715

出　　处：《西南大学学报（自然科学版）》2008年第12期159-163,共5页Journal of Southwest University(Natural Science Edition)

基　　金：国家重点学科西南大学基础心理学资助项目(西国重NSKD06002)

摘　　要：以快速序列视觉呈现法呈现汉字，采用事件相关电位技术探讨在汉字加工过程中重复知盲效应的认知神经机制．结果发现：在200-300ms内，产生RB效应的序列刺激比重复判断正确的序列刺激有一个更负向的偏移；而在600-800ms内，产生RB效应的序列刺激比非重复判断正确的序列刺激有一个更负向的偏移．表明RB效应可能是由于重复的汉字R2在早期知觉阶段不完整的加工而导致其在工作记忆中受到抑制而产生的．In the present study, Event-related brain potentials （ERP） were used to investigate the neural mechanisms underlying Repetition Blindness in processing Chinese, when stimuli were displayed in rapid serial visual presentation. The results showed a greater negativity in ＂Repetition Blindness＂ as compared to the ＂Repeated Correct＂ between 200 and 300 ms after onset of the second repeated Chinese character R2 besides, ＂Unrepeated correct＂ elicited a more positive ERP deflection （P700） than ＂Repetition Blindness＂ during the time window 600-800 ms, thus suggesting that repetition blindness results in inhibition of working memory which is induced by early erroneous perceptual process on repetition Chinese character.

关 键 词：重复知盲 事件相关电位 快速序列视觉现法任务 

分 类 号：B842.1[哲学宗教—基础心理学]