Magnocellular visual function and children's single word reading
Magnocellular visual function and children's single word reading
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DOI：
10.1016/s0042-6989(97)00199-5
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发表时间：
1998-02-01
期刊：
影响因子：
1.8
通讯作者：
Stein, JF
中科院分区：
文献类型：
--
作者：
Cornelissen, PL;Hansen, PC;Stein, JF
最近的研究表明，有阅读障碍的儿童很难发现闪烁或移动的视觉刺激，这与大细胞视觉流的处理受损是一致的。然而，关于这种视觉敏感性降低可能会影响儿童阅读的说法仍然存在争议。在这里，我们认为，当儿童阅读时，受损的大细胞功能可能会降低字母相对于其他字母的位置的信息。我们将这些拼写不一致的无意义错误称为“字母”错误，为了验证这一观点，我们使用连贯的运动检测任务评估了58名未被选中的儿童样本的巨细胞功能，然后我们给这些孩子一个单一的单词阅读任务，发现他们的“字母”错误最好的解释是运动检测的独立贡献(即，这一结果甚至在实际年龄、阅读能力和智商被控制的情况下仍然有效。这些发现表明，受损的大细胞视觉功能以及语音缺陷可能会影响儿童的阅读方式。(C) 1998 Elsevier Science Ltd，版权所有
Recent research has shown that reading disabled children find it unusually difficult to detect flickering or moving visual stimuli, consistent with impaired processing in the magnocellular visual stream, Yet, it remains controversial to suggest that reduced visual sensitivity of this kind might affect children's reading, Here we suggest that when children read, impaired magnocellular function may degrade information about where letters are positioned with respect to each other, leading to reading errors which contain sounds not represented in the printed word, We call these orthographically inconsistent nonsense errors ''letter'' errors, To test this idea we assessed magnocellular function in a sample of 58 unselected children by using a coherent motion detection task, We then gave these children a single word reading task and found that their ''letter'' errors were best explained by independent contributions from motion detection (i.e., magnocellular function) and phonological awareness (assessed by a spoonerism task), This result held even when chronological age, reading ability, and IQ were controlled for, These findings suggest that impaired magnocellular visual function, as well as phonological deficits may affect how children read. (C) 1998 Elsevier Science Ltd, All rights reserved.