Cubelli R
Rehabilitation Department Ospedale Maggiore, Bologna, Italy.
Nature. 1991 Sep 19;353(6341):258-60. doi: 10.1038/353258a0.
Brain-damaged patients with acquired writing disorders provide important information about the normal processes of spelling and writing. Current models indicate that to produce a letter string, its 'abstract' representation is computed and stored in a temporary orthographic buffer, from which it is converted to a verbal code (if the word is to be spelled aloud) or to a physical letter code (if the word is to be written). The stored graphemic representations specify the identity and order of the component letters and their consonant/vowel status. Here I describe the spelling performance of two patients with a selective deficit in writing vowels. When writing words, the first patient omitted all vowels, leaving a blank space between consonants or consonant clusters, whereas the second produced errors that almost exclusively involved vowels. This pattern of performance supports the hypothesis that the consonant/vowel status of graphemes is differentially specified in the spelling process and may be selectively affected after brain damage.
患有后天性书写障碍的脑损伤患者为拼写和书写的正常过程提供了重要信息。当前模型表明，要生成一个字母串，需计算其“抽象”表征并存储在临时正字法缓冲区中，然后将其转换为语音代码（如果要大声拼写单词）或物理字母代码（如果要书写单词）。存储的字素表征指定了组成字母的身份、顺序及其辅音/元音状态。在此，我描述了两名书写元音存在选择性缺陷的患者的拼写表现。在书写单词时，第一名患者省略了所有元音，在辅音或辅音群之间留出空白，而第二名患者产生的错误几乎都只涉及元音。这种表现模式支持了以下假设：字素的辅音/元音状态在拼写过程中是有差异地指定的，并且在脑损伤后可能会受到选择性影响。
