Vowels in the buffer: A case study of acquired dysgraphia with selective vowel substitutions
Vowels in the buffer: A case study of acquired dysgraphia with selective vowel substitutions
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DOI：
10.1080/02643290244000158
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发表时间：
2003-03-01
影响因子：
3.4
通讯作者：
Cappa, SF
中科院分区：
文献类型：
--
作者：
Cotelli, M;Abutalebi, J;Cappa, SF
我们报告一位病人从流利性失语症到选择性书写困难的临床影像恢复。书写障碍的特征与字形输出缓冲功能障碍(所有拼写任务和所有类型材料的错误，受字长影响，主要由字形偏差组成)相一致，但缺乏换位错误和位置偏好。此外，拼写障碍对元音是选择性的，重复了Cubeli(1991)最初的观察结果。在阅读任务中也观察到了类似的错误模式，特别是在非单词任务中，这表明功能障碍涉及阅读和写作共同的加工阶段。这些发现支持辅音-元音状态是字形表征的一种属性，并与拼写和阅读涉及公共缓冲区的观点相一致。我们讨论了选择性元音障碍对当前拼写系统模型的影响。
We report the case of a patient who recovered from a clinical picture of fluent aphasia to selective dysgraphia. The features of the writing disorder were compatible with a graphemic output buffer dysfunction ( errors in all spelling tasks and for all type of material, affected by word length and consisting mostly of graphemic deviations), with the exception of the lack of transposition errors and position preference. Further, the spelling disorder was selective for vowels, replicating the original observation by Cubelli ( 1991). A similar, although milder, error pattern was also observed in reading tasks, in particular for nonwords, suggesting that the locus of dysfunction involves a processing stage shared by reading and writing. These findings support the notion that the consonant-vowel status is a property of graphemic representations, and is compatible with that a common buffer is involved in spelling and reading. We discuss the implications of selective vowel disorders for current models of the spelling system.