Eye movements of university students with and without reading difficulties during naming speed tasks
Eye movements of university students with and without reading difficulties during naming speed tasks
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DOI：
10.1007/s11881-013-0090-z
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发表时间：
2014-07-01
影响因子：
2.3
通讯作者：
Kirby, John R.
中科院分区：
文献类型：
--
作者：
Al Dahhan, Noor;Georgiou, George K.;Kirby, John R.
尽管命名速度（NS）已被证明可以预测成年后的阅读能力并区分成人阅读障碍者和对照者，但问题仍然是为什么 NS 与阅读有关。为了解决这个问题，眼动方法与三个字母 NS 任务相结合（最初的字母 NS 任务由 Denckla & Rudel，Cortex 10:186-202, 1974，以及由 Compton 开发的另外两个字母，The Journal of Special Education 37:81-94, 2003，增加了字母的语音或视觉相似性）。 20 名有阅读困难（RD）的本科生和 27 名没有阅读困难（NRD）的本科生接受了字母 NS 任务（在 NS 任务期间记录眼球运动）、语音处理和阅读流畅性的测试。结果首先表明，RD 组在所有 NS 任务上都比 NRD 组慢，并且 NS 任务之间没有差异。此外，与 RD 组相比，NRD 组的注视持续时间较短、眼跳较长、眼跳和注视次数较少。即使在控制了语音处理措施之后，注视持续时间和注视次数也是阅读流畅度的重要预测因素。总而言之，这些发现表明，NS-阅读关系是由两个因素造成的：能力较差的读者在注视期间需要更多时间来获取刺激信息，并且他们会进行更多的扫视。
Although naming speed (NS) has been shown to predict reading into adulthood and differentiate between adult dyslexics and controls, the question remains why NS is related to reading. To address this question, eye movement methodology was combined with three letter NS tasks (the original letter NS task by Denckla & Rudel, Cortex 10:186-202, 1974, and two more developed by Compton, The Journal of Special Education 37:81-94, 2003, with increased phonological or visual similarity of the letters). Twenty undergraduate students with reading difficulties (RD) and 27 without (NRD) were tested on letter NS tasks (eye movements were recorded during the NS tasks), phonological processing, and reading fluency. The results indicated first that the RD group was slower than the NRD group on all NS tasks with no differences between the NS tasks. In addition, the NRD group had shorter fixation durations, longer saccades, and fewer saccades and fixations than the RD group. Fixation duration and fixation count were significant predictors of reading fluency even after controlling for phonological processing measures. Taken together, these findings suggest that the NS-reading relationship is due to two factors: less able readers require more time to acquire stimulus information during fixation and they make more saccades.