中国发展性阅读障碍儿童的正字法加工：一项事件相关电位研究的证据。

Orthographic Processing of Developmental Dyslexic Children in China: Evidence from an Event-Related Potential Study.

机构信息

Medical College, Shihezi University, Shihezi, 832002, China.

School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.

出版信息

Curr Med Sci. 2021 Dec;41(6):1239-1246. doi: 10.1007/s11596-021-2468-1. Epub 2021 Dec 6.

DOI:10.1007/s11596-021-2468-1

PMID:34874487

Abstract

OBJECTIVE

This study aimed to explore the orthographic processing of simplified Chinese characters in developmental dyslexic children in Kashgar, Xinjiang, China, and provide a theoretical basis for intervention strategies for developmental dyslexia in Chinese.

METHODS

Using event-related potential (ERP) measures, 18 developmental dyslexic children and 23 typically developing children performed a character decision task with three types of stimuli: real characters (RCs), pseudocharacters (PCs), and noncharacters (NCs).

RESULTS

Behavioral results showed that the control children displayed a faster and higher accurate performance than the dyslexic children across PCs and NCs. ERP data revealed that the RCs and PCs elicited a stronger P200 than the NCs. Compared with the RCs and NCs, children in the control group showed more N400 negatives for PCs. It is worth mentioning that dyslexic children did not show any difference on N400, which reflected the insufficient orthographic processing of dyslexic children in China.

CONCLUSION

These results show that Chinese dyslexic children had orthographic processing defects.

摘要

目的

本研究旨在探讨中国新疆喀什发育性阅读障碍儿童对简体汉字的正字法加工，为汉语发育性阅读障碍的干预策略提供理论依据。

方法

采用事件相关电位（ERP）技术，18 名发育性阅读障碍儿童和 23 名正常儿童完成了三种刺激类型的字符判断任务：真实字符（RCs）、伪字符（PCs）和非字符（NCs）。

结果

行为结果表明，控制组儿童在 PCs 和 NCs 上的表现均优于阅读障碍组，反应速度更快，准确率更高。ERP 数据显示，RCs 和 PCs 诱发出比 NCs 更强的 P200。与 RCs 和 NCs 相比，对照组儿童对 PCs 表现出更大的 N400 负值。值得注意的是，阅读障碍组儿童在 N400 上没有表现出任何差异，这反映了中国阅读障碍儿童在正字法加工方面的不足。