Although reduced verbal span is well documented in individuals with developmental dyslexia, the existing data on visual-spatial span are inconclusive. The aim of the present study was to ascertain whether the working memory deficit in developmental dyslexia is confined to verbal material or whether it also involves visual-object and visual-spatial information. Results document deficits on span tasks tapping verbal, visual-spatial, and visual-object working memory in dyslexic children and indicate that the working memory deficit in developmental dyslexia is not limited to dysfunction of phonological components but also involves visual-object and visual-spatial information.

中文翻译：

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发育性阅读障碍儿童的工作记忆障碍：仅仅是语音缺陷吗？

尽管在患有发展性阅读障碍的个体中减少了言语跨度，但现有的视觉空间跨度数据尚无定论。本研究的目的是确定发展性阅读障碍的工作记忆缺陷是否仅限于口头材料，或者是否还涉及视觉对象和视觉空间信息。结果记录了阅读障碍儿童在语言、视觉空间和视觉对象工作记忆方面的跨度任务缺陷，并表明发展性阅读障碍的工作记忆缺陷不仅限于语音成分的功能障碍，还涉及视觉对象和视觉空间信息。