The role of visual attention in dyslexia: Behavioral and neurobiological evidence.
The role of visual attention in dyslexia: Behavioral and neurobiological evidence.
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DOI：
10.1002/hbm.25753
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发表时间：
2022-04-01
影响因子：
4.8
通讯作者：
Horowitz-Kraus T
中科院分区：
文献类型：
--
作者：
Taran N;Farah R;DiFrancesco M;Altaye M;Vannest J;Holland S;Rosch K;Schlaggar BL;Horowitz-Kraus T
糟糕的语音处理通常被认为是阅读障碍的主要原因。然而，也描述了视觉注意处理异常。本研究的目的是确定在流畅的阅读过程中的视觉注意参与阅读障碍儿童和典型的读者。在这里，75名儿童（8-12岁; 36名典型的阅读者，39名患有阅读障碍的儿童）完成了认知和阅读评估。神经影像学数据是在儿童进行流畅阅读任务时采集的，其中（a）文本保留在屏幕上（静止）的条件与（B）字母被删除（删除）的条件。认知评估数据分析显示，视觉注意，执行功能，语音意识显着促进阅读理解在两组。对流畅性功能磁共振成像任务进行了种子到体素的功能连接性分析。与阅读障碍儿童相比，典型的阅读者在执行静态和静态阅读任务时，背侧注意网络和左侧角回之间的功能连接更强。较高的连接值与较高的阅读理解力相关。对照组显示，腹侧注意网络和额顶网络之间的功能连接在短文本条件下增加（与静止条件相比）。患有阅读障碍的儿童没有表现出这种模式。结果表明，执行，视觉注意和阅读相关网络的同步活动是一种功能整合的模式，阅读障碍儿童无法实现。目前的证据指向视觉注意在阅读障碍中的关键作用。与阅读障碍儿童相比，典型的阅读者在执行静态和静态阅读任务时，背侧注意网络和左侧角回之间的功能连接更强。对照组显示，腹侧注意网络和额顶网络之间的功能连接在短文本条件下增加（与静止条件相比）。结果表明，执行，视觉注意和阅读相关网络的同步活动是一种功能整合的模式，阅读障碍儿童无法实现。
Poor phonological processing has typically been considered the main cause of dyslexia. However, visuo‐attentional processing abnormalities have been described as well. The goal of the present study was to determine the involvement of visual attention during fluent reading in children with dyslexia and typical readers. Here, 75 children (8–12 years old; 36 typical readers, 39 children with dyslexia) completed cognitive and reading assessments. Neuroimaging data were acquired while children performed a fluent reading task with (a) a condition where the text remained on the screen (Still) versus (b) a condition in which the letters were being deleted (Deleted). Cognitive assessment data analysis revealed that visual attention, executive functions, and phonological awareness significantly contributed to reading comprehension in both groups. A seed‐to‐voxel functional connectivity analysis was performed on the fluency functional magnetic resonance imaging task. Typical readers showed greater functional connectivity between the dorsal attention network and the left angular gyrus while performing the Still and Deleted reading tasks versus children with dyslexia. Higher connectivity values were associated with higher reading comprehension. The control group showed increased functional connectivity between the ventral attention network and the fronto‐parietal network during the Deleted text condition (compared with the Still condition). Children with dyslexia did not display this pattern. The results suggest that the synchronized activity of executive, visual attention, and reading‐related networks is a pattern of functional integration which children with dyslexia fail to achieve. The present evidence points toward a critical role of visual attention in dyslexia. Typical readers showed greater functional connectivity between the dorsal attention network and the left angular gyrus while performing the Still and Deleted reading tasks versus children with dyslexia. The control group showed increased functional connectivity between the ventral attention network and the fronto‐parietal network during the Deleted text condition (compared with the Still condition). The results suggest that the synchronized activity of executive, visual attention, and reading‐related networks is a pattern of functional integration which children with dyslexia fail to achieve.
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影响因子：
16.6
作者：
Breznitz, Zvia;Shaul, Shelley;Karni, Avi
通讯作者：
Karni, Avi
影响因子：
9.2
作者：
Franceschini, Sandro;Gori, Simone;Facoetti, Andrea
通讯作者：
Facoetti, Andrea
影响因子：
2.5
作者：
Buchweitz, Augusto;Mason, Robert A.;Meschyan, Gayane;Keller, Timothy A.;Just, Marcel Adam
通讯作者：
Just, Marcel Adam
DOI：
10.1016/j.cortex.2020.06.013
发表时间：
2020-10
期刊：
Cortex; a journal devoted to the study of the nervous system and behavior
影响因子：
--
作者：
Assem M;Blank IA;Mineroff Z;Ademoğlu A;Fedorenko E
通讯作者：
Fedorenko E
DOI：
10.1016/b978-0-12-804281-6.00011-2
发表时间：
2019-01-01
期刊：
FRONTAL LOBES, VOL 163
影响因子：
--
作者：
Cristofori, Irene;Cohen-Zimerman, Shira;Grafman, Jordan
通讯作者：
Grafman, Jordan