Coslett H B, Saffran E M
Department of Neurology, Temple University Hospital, Philadelphia, PA 19140.
Brain Lang. 1992 Jul;43(1):148-61. doi: 10.1016/0093-934x(92)90026-b.
Optic aphasia is a rare, visual modality-specific naming disorder. We describe a patient who developed this disorder subsequent to a left occipital lobe infarction. Like another case that we described previously, this patient performed normally on a variety of tasks assessing the recognition of objects he could not name. Additionally, although he never read aloud a single word, his performance on lexical decision and word comprehension tasks was far better than chance. We suggest that his performance was mediated by a right hemisphere semantic system.
视觉性失语症是一种罕见的、特定于视觉模式的命名障碍。我们描述了一名在左枕叶梗死之后出现这种障碍的患者。与我们之前描述的另一例病例一样，该患者在各种评估对其无法命名的物体的识别任务中表现正常。此外，尽管他从未大声读出一个单词，但他在词汇判断和单词理解任务中的表现远高于随机水平。我们认为他的表现是由右半球语义系统介导的。
