ERP correlates of the development of orthographical and phonological processing during Chinese sentence reading
ERP correlates of the development of orthographical and phonological processing during Chinese sentence reading
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ERP与汉语句子阅读过程中的拼写和语音处理的发展相关
DOI：
10.1016/j.brainres.2008.04.052
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发表时间：
2008-07-11
期刊：
影响因子：
2.9
通讯作者：
Zhou, Xiaolin
中科院分区：
文献类型：
--
作者：
Meng, Xiangzhi;Jian, Jie;Zhou, Xiaolin
采用事件相关电位(ERP)实验，考察了学龄儿童和成人读者在汉语句子阅读过程中正字法和语音加工的发展。参与者被呈现在视觉上的句子，字面意思，并被要求判断这些句子在语义上是否可以接受。关键的操作是对句末两字复合词的处理，这些复合词要么正确，要么不正确。对于不正确的复合词，基本单词的第二个字符被同音或拼写相似的字符取代。事件相关电位结果显示，在所有参与者中，同音条件下的P200峰值出现得比正字法和基线条件下的更早。重要的是，对于儿童和成人读者来说，相对于基线，同音条件下的拼写不匹配和拼写条件下的语音不匹配都会引发N400效应。虽然对于成年人来说，这些影响的大小似乎是相等的，但在拼写不匹配的情况下，N400成分的峰值出现得比语音不匹配的早。对于儿童来说，正字法不匹配的N400效应大于语音不匹配的N400效应。在同音条件下，儿童的N400成分也比成年人更负，并且在同音条件和基线条件下，儿童的N400成分的峰值出现得比成年人晚。此外，N400效应的抵消在成人比儿童更早出现，拼写不匹配比语音不匹配更早出现。这些发现表明，中国成人读者和学龄儿童在阅读汉语句子时都更多地依赖于正字法信息而不是语音信息来获取词汇语义。然而，正字法和音位法之间的差异效应在成人和儿童中可能有不同的事件相关电位表现。(C)2008爱思唯尔B.V.保留所有权利。
An event-related potential (ERP) experiment was conducted to investigate the development of orthographic and phonological processing during Chinese sentence reading between school children and adult readers. Participants were visually presented with sentences, word-byword, and were asked to judge whether the sentences were semantically acceptable. The crucial manipulation was on the sentence-final two-character compound words, which were either correct or incorrect. For the incorrect compounds, the second characters of the base words were replaced by homophonic or orthographically similar characters. ERP results showed that, across participant groups, the peak of P200 appeared earlier for the homophonic condition than for the orthographic and the baseline conditions. Importantly, for both child and adult readers, relative to the baseline, both orthographic mismatch in the homophonic condition and phonological mismatch in the orthographic condition elicited N400 effects. While for adults these effects appeared to be equal in size, the peak of the N400 component appeared earlier for orthographic mismatch than for phonological mismatch. For children the N400 effect was larger for orthographic mismatch than for phonological mismatch. The N400 component was also more negative for children than for adults in the homophonic condition, and its peak appeared later for children than for adults in the homophonic and the baseline conditions. Moreover, the offset of the N400 effects appeared earlier for adults than for children and for orthographic mismatch than for phonological mismatch. These findings suggest that both Chinese adult readers and school children rely more on orthographic information than on phonological information to access lexical semantics in reading Chinese sentences. However, the differential effects between orthography and phonology may have different ERP manifestations in adults and children. (C) 2008 Elsevier B.V. All rights reserved.