Deficits in perceptual noise exclusion in developmental dyslexia

被引：218

作者：

Sperling, AJ

Lu, ZL

Manis, FR

Seidenberg, MS

机构：

[1] Georgetown Univ, Med Ctr, Washington, DC 20057 USA

[2] Univ So Calif, Los Angeles, CA 90089 USA

[3] Univ Wisconsin, Madison, WI 53706 USA

来源：

NATURE NEUROSCIENCE | 2005年 / 8卷 / 07期

关键词：

D O I：

10.1038/nn1474

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

We evaluated signal-noise discrimination in children with and without dyslexia, using magnocellular and parvocellular visual stimuli presented either with or without high noise. Dyslexic children had elevated contrast thresholds when stimuli of either type were presented in high noise, but performed as well as non-dyslexic children when either type was displayed without noise. Our findings suggest that deficits in noise exclusion, not magnocellular processing, contribute to the etiology of dyslexia.

引用

收藏

页码：862 / 863

页数：2

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