The visual magnocellular-dorsal dysfunction in Chinese children with developmental dyslexia impedes Chinese character recognition

	The visual magnocellular-dorsal dysfunction in Chinese children with developmental dyslexia impedes Chinese character recognition
	Zhao, Jing1,2 ; Qian, Yi 1,2; Bi, Hong-Yan1 ; Coltheart, Max 3
摘要	The visual magnocellular-dorsal (M-D) deficit theory of developmental dyslexia (DD) is still highly debated. Many researchers have made great efforts to investigate the relationship between M-D dysfunction and reading disability. Given that visual analysis plays an important role in Chinese reading, the present study tried to examine how the M-D dysfunction affected Chinese character recognition in Chinese children with DD. Sixteen DD children with M-D deficit, fifteen DD children with normal M-D function and twenty-seven age-matched typically developing children participated in this study. A global/local decision task was adopted, in which we manipulated the spatial frequency of target characters to separate an M-D condition from an unfiltered condition. Results of reaction times and error rates showed that in the M-D condition both M-D normal dyslexics and controls exhibited a significant global precedence effect, with faster responses and lower error rates in global decision than in local decision. In contrast, this global advantage was absent for the M-D impaired dyslexics. Accordingly, we propose that the M-D impairment present in some but not all dyslexics might influence global recognition of Chinese characters in this subgroup of children with DD, which might be implicated in their difficulties in learning to read.
	2014-11-20
语种	英语
发表期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
卷号	4 期号:0 页码:7068
期刊论文类型	Article
收录类别	SCI
WOS记录号	WOS:000346177400001
引用统计	被引频次：38[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.psych.ac.cn/handle/311026/13468
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 100101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Macquarie Univ, Ctr Cognit & Its Disorders, N Ryde, NSW 2109, Australia
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	Zhao, Jing,Qian, Yi,Bi, Hong-Yan,et al. The visual magnocellular-dorsal dysfunction in Chinese children with developmental dyslexia impedes Chinese character recognition[J]. SCIENTIFIC REPORTS,2014,4(0):7068.
APA	Zhao, Jing,Qian, Yi,Bi, Hong-Yan,&Coltheart, Max.(2014).The visual magnocellular-dorsal dysfunction in Chinese children with developmental dyslexia impedes Chinese character recognition.SCIENTIFIC REPORTS,4(0),7068.
MLA	Zhao, Jing,et al."The visual magnocellular-dorsal dysfunction in Chinese children with developmental dyslexia impedes Chinese character recognition".SCIENTIFIC REPORTS 4.0(2014):7068.

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