Is the impaired N170 print tuning specific to developmental dyslexia? A matched reading-level study with poor readers and dyslexics
Is the impaired N170 print tuning specific to developmental dyslexia? A matched reading-level study with poor readers and dyslexics
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DOI：
10.1016/j.bandl.2013.09.012
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发表时间：
2013-12-01
影响因子：
2.5
通讯作者：
Doignon-Camus, Nadege
中科院分区：
文献类型：
--
作者：
Mahe, Gwendoline;Bonnefond, Anne;Doignon-Camus, Nadege
Left N170 印刷品调整与印刷品的视觉专业知识相关，据报道，使用年龄匹配的设计，阅读困难症患者会受到损害。这是 N170 印刷体调谐首次在成人阅读障碍者和成人阅读障碍者中进行比较，并在阅读水平上进行匹配。参与者使用类似单词的刺激和符号字符串执行词汇决策任务。与阅读障碍相比，较差的阅读者表现出与控制专家阅读者类似的 N170 调节，这表明 N170 专业化受损是发展性阅读障碍的一个标志。我们的研究结果为阅读障碍提供了电生理学支持，阅读障碍是由于参与印刷专业处理的左枕颞区异常专业化造成的。此外，如相关数据所示并根据语音映射缺陷理论，阅读障碍者中描述的印刷品视觉专业知识受损可能是由他们的核心语音缺陷引起的。 (C) 2013 Elsevier Inc. 保留所有权利。
Left N170 print tuning has been associated with visual expertise for print and has been reported to be impaired in dyslexics, using age matched designs. This is the first time N170 print tuning has been compared in adult dyslexics and adult poor readers, matched in reading level. Participants performed a lexical decision task using both word-like stimuli and symbol strings. In contrast to dyslexics, poor readers displayed similar N170 tuning to control expert readers, suggesting that impaired N170 specialization is a hallmark of developmental dyslexia. Our findings provide electrophysiological support for dyslexia being the result of abnormal specialization of the left occipito-temporal areas involved in the expert processing of print. Furthermore, as shown by correlations data and in accordance with the phonological mapping deficit theory, the impaired visual expertise for print described in dyslexics may have been caused by their core phonological deficits. (C) 2013 Elsevier Inc. All rights reserved.