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orthographic processing of Developmental Dyslexic Children in China: Evidence from an Event-Related Potential Study

Current Medical Science 2021年第6期41卷 1239-1246页

作者： Shu-ting TANG Fang-fang LIU Zeng-chun LI Ke-gao DENG Ran-ran SONG Peng-xiang ZUO Medical College Shihezi UniversityShihezi 832002China School of Public Health Tongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430030China

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 ***: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 *** data revealed that the RCs and PCs elicited a stronger P200 than the *** with the RCs and NCs,children in the control group showed more N400 negatives for *** is worth mentioning that dyslexic children did not show any difference on N400,which reflected the insufficient orthographic processing of dyslexic children in ***:These results show that Chinese dyslexic children had orthographic processing defects.

关键词： developmental dyslexia orthographic processing radical position simplified Chinese characters event-related potential

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The functional orthographic unit in Chinese reading:evidence from ERP

The functional orthographic unit in Chinese reading:evidence...

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中国神经科学学会第四次会员代表大会暨第七届全国学术会议

作者： Hsuan-Chih 中科院心理所脑高级功能实验室香港中文大学心理系认知与脑研究中心

＜正＞Written Chinese possesses several unique ***,it is interesting and important to study how written Chinese is *** this end,an event-related potential（ERP） study was conducted to investigate the electrophysiological properties of orthographic processing in recognizing Chinese characters using a color matching task in which participants matched the ink color of each presented character with that of a preceding pattern *** stimuli included real characters,pseudo-characters（character components appearing in the ordinary position）,non-characters （character components appearing in the wrong position）,and random stroke *** stimuli elicited a clear negativity that was maximal 170 ms following character *** real and pseudo characters differed from the non- characters and stroke combinations in the amplitude of the N170 *** results suggest that the positional information of character components is processed in character recognition.

关键词： Chinese orthographic processing event-related potential N170 visual word recognition

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