Right unilateral agraphia following callosal infarction in a left-hander.
Right unilateral agraphia following callosal infarction in a left-hander.
复制标题
左利手胼胝体梗死后右侧单侧失写症。
DOI：
10.1159/000117032
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发表时间：
1994
影响因子：
2.4
通讯作者：
S. Maruyama
中科院分区：
文献类型：
--
作者：
H. Tei;Y. Soma;S. Maruyama
摘要一位惯用左手的日本男性，在胼胝体梗塞后出现右手失写及触觉性命名障碍。磁共振成像显示从躯干的后半部分延伸到胼胝体压部的缺血性病变。在他的右手笔迹中，“假名”（表音文字）比“汉字”（表意文字）受损更严重，最常见的打字错误是形态学，其次是新字。他的视觉建构能力也在右手比左手更受损。在我们的病例中，右手失写症很容易用右半球在语言和视觉建构能力上的优势来解释。
A left-handed Japanese man is reported who presented right-hand agraphia and tactile anomia following callosal infarction. Magnetic resonance imaging revealed an ischemic lesion extending from the posterior half of the trunk to the splenium of the corpus callosum. In his right handwriting, the 'Kana' (phonogram) was more severely impaired than the 'Kanji' (ideogram), and the most frequent typewriting error was morphological followed by neographism. His visuoconstructional ability was also more impaired in the right hand than in the left. Right-hand agraphia in our case is readily explained by the right hemisphere dominance both for language and visuoconstructional ability.