Kim HyangHee, Na Duk L, Park Eun Sook
Graduate Program in Speech and Language Pathology, Department of Rehabilitation Medicine, Yonsei University College of Medicine, Seoul, Korea.
Behav Neurol. 2007;18(2):91-7. doi: 10.1155/2007/751407.
Dysgraphia due to a focal brain lesion can be characterized by substitution, transposition, deletion and/or addition errors of graphemes or strokes. However, those linguistic errors can be language-specific because the writing system of a given language may influence error patterns. We investigated a Korean stroke patient, a 57-year-old English teacher with dysgraphia both in Korean Han-geul [see text] and in English alphabet writings. The results of an experimental testing revealed transposition errors between a consonant and a vowel only in English but not in Korean writings. This austerity of vowel-consonant position may be attributed to a unique Korean writing system of a spatially well-formed syllabic configuration or block with consonant(s) and a vowel. In light of a neuropsychological model of writing, which depicts a multi-level spelling and writing process, we suggest a spatial-constructional component of internal orthographic representations in Korean writing. This Korean graphemic configuration feature may be resistant to a focal, left cerebral damage, and thus, we also discuss our results in terms of cerebral lateralization of the writing processes.
由局灶性脑损伤导致的书写障碍可表现为字素或笔画的替换、换位、缺失和/或添加错误。然而，这些语言错误可能因语言而异，因为特定语言的书写系统可能会影响错误模式。我们研究了一名韩国中风患者，一名57岁的英语教师，其在韩语（韩文）和英文字母书写中均存在书写障碍。实验测试结果显示，换位错误仅出现在英文书写中，即辅音和元音之间的换位，而在韩文书写中未出现。这种辅音 - 元音位置的严格性可能归因于韩语独特的书写系统，即空间结构良好的音节组合或由辅音和元音组成的方块字。根据描述多层次拼写和书写过程的书写神经心理学模型，我们提出韩语书写中内部正字法表征的空间构造成分。这种韩语字素构型特征可能对左侧大脑局灶性损伤具有抵抗力，因此，我们也从书写过程的大脑侧化角度讨论了我们的结果。
