The visual magnocellular deficit in Chinese-speaking children with developmental dyslexia

	The visual magnocellular deficit in Chinese-speaking children with developmental dyslexia
	Qian, Yi 1,2; Bi, Hong-Yan1
摘要	Many alphabetic studies have evidenced that individuals with developmental dyslexia (DD) have deficits in visual magnocellular (M) pathway. However, there are few studies to investigate the M function of Chinese DD. Chinese is a logographic language, and Chinese characters are complicated in structure. Visual skills and orthographic processing abilities are particularly important for efficient reading in Chinese as compared to alphabetic languages. Therefore, it is necessary to investigate the visual M function of Chinese DD and whether the M function was associated with orthographic skills. In the present study, 26 dyslexic children (mean age: 10.03 years) and 27 age-matched normal children (mean age: 10.37 years) took part in a coherent motion (CM) detection task and an orthographic awareness test. The results showed that dyslexic children had a significantly higher threshold than age-matched children in CM detection task. Meanwhile, children with DD responded more slowly in orthographic awareness test, although the group difference was marginally significant. The results suggested that Chinese dyslexics had deficits both in visual M pathway processing and orthographic processing. In order to investigate the relationship between M function and orthographic skills, we made a correlation analysis between CM threshold and orthographic awareness by merging performance of dyslexic children and age-matched children. The results revealed that CM thresholds were positively correlated with reaction times in orthographic awareness test, suggesting that better M function was related to better orthographic processing skills.
关键词	Developmental Dyslexia Magnocellular Pathway Coherent Motion Detection Orthographic Processing Skills Chinese Reading
	2014-07-03
语种	英语
发表期刊	FRONTIERS IN PSYCHOLOGY
ISSN	1664-1078
卷号	5 期号:0 页码:692
期刊论文类型	Article
收录类别	SSCI
WOS记录号	WOS:000338779100001
引用统计	被引频次：21[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.psych.ac.cn/handle/311026/14157
专题	中国科学院行为科学重点实验室
作者单位	1.Chinese Acad Sci, Inst Psychol, Key Lab Behav Sci, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China
第一作者单位	中国科学院行为科学重点实验室
推荐引用方式 GB/T 7714	Qian, Yi,Bi, Hong-Yan. The visual magnocellular deficit in Chinese-speaking children with developmental dyslexia[J]. FRONTIERS IN PSYCHOLOGY,2014,5(0):692.
APA	Qian, Yi,&Bi, Hong-Yan.(2014).The visual magnocellular deficit in Chinese-speaking children with developmental dyslexia.FRONTIERS IN PSYCHOLOGY,5(0),692.
MLA	Qian, Yi,et al."The visual magnocellular deficit in Chinese-speaking children with developmental dyslexia".FRONTIERS IN PSYCHOLOGY 5.0(2014):692.

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