A dual-route perspective on eye movements of dyslexic readers.
A dual-route perspective on eye movements of dyslexic readers.
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DOI：
10.1016/j.cognition.2009.11.004
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发表时间：
2010-06
期刊：
影响因子：
3.4
通讯作者：
Wimmer H
中科院分区：
文献类型：
--
作者：
Hawelka S;Gagl B;Wimmer H
这项研究评估了青少年阅读困难读者的眼动异常，并通过将单字阅读的双路径模型与无声句子阅读期间眼动控制的 E-Z Reader 模型联系起来来解释研究结果。词汇路径的功能障碍被认为是导致仅接受一次注视或被跳过的单词数量减少以及多次注视的单词数量增加以及单词长度对凝视持续时间的显着影响的原因。这种模式被解释为正字法全字识别（基于正字法词典条目）的频繁失败，并且依赖于串行亚词汇处理。词汇路径的低效是通过长时间注视单一固定单词来推断的。这些发现与眼动控制的 E-Z Reader 模型有关。单词音系激活缓慢是阅读困难读者跳读率较低的原因。对词下解码的频繁依赖是从固定单词开头和短距离向前扫视的倾向推断出来的。总体而言，单字阅读的双路径模型和眼动控制模型的联系为理解阅读障碍读者的眼动异常提供了一个有用的框架。
This study assessed eye movement abnormalities of adolescent dyslexic readers and interpreted the findings by linking the dual-route model of single word reading with the E-Z Reader model of eye movement control during silent sentence reading. A dysfunction of the lexical route was assumed to account for a reduced number of words which received only a single fixation or which were skipped and for the increased number of words with multiple fixations and a marked effect of word length on gaze duration. This pattern was interpreted as a frequent failure of orthographic whole-word recognition (based on orthographic lexicon entries) and on reliance on serial sublexical processing instead. Inefficiency of the lexical route was inferred from prolonged gaze durations for singly fixated words. These findings were related to the E-Z Reader model of eye movement control. Slow activation of word phonology accounted for the low skipping rate of dyslexic readers. Frequent reliance on sublexical decoding was inferred from a tendency to fixate word beginnings and from short forward saccades. Overall, the linkage of the dual-route model of single word reading and a model of eye movement control led to a useful framework for understanding eye movement abnormalities of dyslexic readers.
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