Alexander M P, Fischette M R, Fischer R S
Aphasia Program, Braintree Hospital, Boston, Massachusetts 02184.
Brain. 1989 Aug;112 ( Pt 4):953-73. doi: 10.1093/brain/112.4.953.
Individual cases of crossed aphasia (aphasia after a right hemisphere lesion in a right-hander) have often been reported. A number of theories have been proposed as to the neuropsychological and/or nerobiological mechanisms that might underlie this phenomenon, but there is still disagreement about its language phenomenology and possible significance. We report 2 cases of crossed aphasia after stroke and review 34 cases from the literature with anatomical documentation of lesion site. Analysis of this material suggests that they represent at least two populations. There may be general conclusions concerning mechanisms of cerebral lateralization to be learned from the investigation of anomalous groups such as crossed aphasics.
交叉性失语（右利手患者右侧半球病变后出现的失语）的个别病例常有报道。关于可能是这一现象基础的神经心理学和/或神经生物学机制，已经提出了许多理论，但对于其语言现象学和可能的意义仍存在分歧。我们报告了2例中风后交叉性失语病例，并回顾了文献中34例有病变部位解剖学记录的病例。对这些资料的分析表明，它们至少代表了两类人群。通过对交叉性失语症患者等异常群体的研究，可能会得出有关大脑半球侧化机制的一般性结论。
