Endo Keiko, Suzuki Kyoko, Hirayama Kazumi, Fujii Toshikatsu, Kumabe Toshihiro, Mori Etsuro
Department of Rehabilitation, Tohoku University Hospital, Sendai, Miyagi, Japan.
Brain Nerve. 2010 Sep;62(9):991-6.
Abstract A 69-year-old right-handed man developed alexia with agraphia after resection of a brain tumor in the left parietal lobe. After the operation, neurological examination revealed right lower quadrantanopia, mild paresis and sensory disturbance on the right side. He showed marked alexia with agraphia, very mild aphasia, acalculia, and constructional disability. In reading tasks, he was able to read kanji word and kana words but not a single kana character or nonword. After he traced a single kana character or kana nonword, he was able to read it. In writing tasks, he could write kana but not kanji characters, except simple kanji characters that involved less than 4 strokes. These findings indicated that kinesthetic traces may enable such patients to read and write. We propose that processes of reading and writing may include kinesthetic route in addition to the meaning, phonological, and orthographical routes.
一名69岁右利手男性在左顶叶脑肿瘤切除术后出现失读症伴失写症。术后神经学检查发现右下象限盲、右侧轻度轻瘫和感觉障碍。他表现出明显的失读症伴失写症、非常轻微的失语症、失算症和构图障碍。在阅读任务中，他能够阅读汉字单词和平假名单词，但不能阅读单个平假名字符或非单词。在他描摹单个平假名字符或平假名非单词后，他能够阅读它。在书写任务中，他可以书写平假名，但不能书写汉字，除了笔画少于4画的简单汉字。这些发现表明，动觉痕迹可能使此类患者能够阅读和书写。我们提出，阅读和书写过程除了意义、语音和正字法途径外，可能还包括动觉途径。
