The aim of this study was to gain additional knowledge about the asynchrony phenomenon in developmental dyslexia, especially when spatial selective attention is manipulated. Adults with developmental dyslexia and non-impaired readers underwent two experimental tasks, one including alphabetic stimuli (pre-lexical consonant–vowel syllables) and the other containing non-alphabetic stimuli (pictures and sounds of animals). Participants were instructed to attend to the right or left hemifields and to respond to all stimuli on that hemifield. Behavioral parameters and event-related potentials were recorded. The main finding was that the dyslexic readers demonstrated asynchrony between the auditory and visual modalities when alphabetic stimuli were presented on the right hemifield. These results suggest that intact reading is linked to a synchronized auditory and visual speed of processing even when spatial selective attention is manipulated. The findings of the current study are discussed in terms of asynchrony between modalities as a neurocognitive marker in developmental dyslexia.

中文翻译：

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成人阅读障碍读者的空间选择性注意和认知系统的异步性：ERP和行为研究。

这项研究的目的是获得关于发育性阅读障碍中异步现象的更多知识，尤其是在操纵空间选择性注意力时。患有阅读障碍的成年人和没有阅读障碍的成年人要进行两项实验任务，一项任务包括字母刺激（词前辅音-元音音节），另一项任务包含非字母刺激（图片和动物的声音）。指示参与者参加右侧或左侧半场，并对该半场上的所有刺激做出反应。记录行为参数和事件相关电位。主要发现是，当在右侧半场呈现字母刺激时，阅读障碍的读者表现出听觉和视觉方式之间的异步。这些结果表明，即使在操纵空间选择性注意力时，完整的阅读也与同步的听觉和视觉处理速度相关。本研究的发现是作为发展性阅读障碍的一种神经认知标记，在模态之间的异步性方面进行讨论的。