不同启动时间下汉语换位效应的ERP研究

发布时间：2018-06-27 18:37

本文选题：四字假词 + 换位效应　；参考：《辽宁师范大学》2015年硕士论文

【摘要】：前人研究表明换位假词不但可以激活其原词,还可以激活原词的同义词或联想词,本文从汉语词汇角度出发,使用联想启动范式结合ERP实验技术,来探讨汉语四字假词的联想激活效应,从跨文化层面来进一步验证换位效应,并从语义层面来丰富字符位置编码机制。本研究从验证激活理论出发,当启动项曝光时间较短情况下,假词可以激活其原词的语义,当启动项曝光时间较长的情况下,假词启动的联想启动或语义启动效应均消失不见了。但是由于换位效应的存在,本研究认为换位假词启动在呈现时间较长情况下,依然可以激活其原词的语义。实验一启动项的呈现时间设置为80毫秒,启动项分为三类,真词启动,换位假词启动,替换假词启动,使用联想启动范式结合词汇判断任务,并记录ERP脑电成分。研究发现,在250毫秒到550毫秒的时间窗口内,半球主效应显著,启动项同半球之间交互作用显著,进一步检验表明,在右半球上,真词启动和替换假词相比差异显著,换位假词同替换假词相比差异显著。实验二的设置就是把实验一中启动项的呈现时间由80毫秒延长至200毫秒,其他均与实验一相同。结果表明,在150毫秒到250毫秒的时间窗口内,启动类型主效应显著,电极位置主效应显著,事后检验表明,真词启动同替换启动之间差异显著,换位启动同替换启动之间差异显著。在250毫秒到550毫秒时间窗口内,启动类型主效应和半球主效应均显著,启动类型同半球的交互作用,启动类型同电极位置交互作用,启动类型,半球和电极位置交互作用,三类交互作用都显著。进一步的检验表明,真词启动同替换假词启动差异显著,换位假词同替换假词差异显著。在左半球的后部电极上,真词和换位同替换假词相比差异都显著,在右半球中后部电极上真词和换位假词同替换假词相比差异都显著。研究得到了如下结论:1无论启动呈现时间较短抑或较长,汉语四字换位假词都可以发挥出与其原词同样的作用,并且这种作用能够维持一段时间。2同前人研究所得结果一样,本研究认为,在视觉词汇识别早期,字符(汉字)身份编码机制效用的发挥要早于字符(汉字)位置信息的编码。
[Abstract]:Previous studies have shown that transposition pseudonyms can not only activate the original words, but also the synonyms or associative words of the original words. From the perspective of Chinese vocabulary, this paper uses associative priming paradigm combined with ERP experimental technology. To explore the associative activation effect of Chinese four-character false words, to further verify the transposition effect from the cross-cultural level, and to enrich the character position coding mechanism from the semantic level. Based on the validation of activation theory, the pseudonym can activate the semantics of the original word when the exposure time of the promoter term is short, and when the priming term is exposed for a long time, the false word can activate the semantics of the original word. The associative priming or semantic priming effect of false word priming disappeared. However, due to the existence of transposition effect, this study suggests that transposition pseudonyms can activate the semantics of the original words even if they are initiated for a long time. In experiment 1, the priming time was set to 80 milliseconds. The primer items were divided into three categories: true word priming, transposition false word priming, replacing false word priming, associative priming paradigm combined with lexical judgment task, and recording ERP EEG components. In the time window of 250 milliseconds to 550 milliseconds, the hemispheric main effect was significant, and the interaction between the initiator and the hemispheres was significant. Further tests showed that in the right hemisphere, there were significant differences between the true word priming and the replacement false word. The difference between transposition falsettes and replacement falsettes is significant. The setup of experiment 2 is to extend the rendering time from 80 milliseconds to 200 milliseconds, and the rest are the same as that of experiment 1. The results showed that in the time window of 150 milliseconds to 250 milliseconds, the main effect of startup type and electrode position were significant. The difference between transposition start and replacement start is significant. In the 250 millisecond to 550 millisecond window, the main effect of startup type and hemispheric effect are significant, the interaction between start type and hemispheres, the interaction between starting type and electrode position, the interaction between start type and electrode position, and the interaction between start type and electrode position are significant. All three types of interactions were significant. Further tests show that there are significant differences between the initiation of true words and replacement false words, and the difference between transposition false words and replacement false words. On the posterior electrode of the left hemisphere, there were significant differences between the true words and the transposition words compared with the replacement false words, while the true words and the transposition false words on the right hemispheric posterior electrode were significantly different from the replacement false words. The research results show that: 1 can play the same role as its original words, and this function can be maintained for a period of time, which is the same as the results of previous studies, no matter how short or long the initiation time is, the Chinese four-character transposition pseudonyms can play the same role as the original words, and this effect can be maintained for a period of time. In this study, it is concluded that in the early stage of visual vocabulary recognition, the role of character (Chinese character) identity coding mechanism is earlier than that of character (Chinese character) position information coding.
【学位授予单位】：辽宁师范大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：B842

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