Department of Neurology, UCLA School of Medicine, Los Angeles, California.
Ann Dyslexia. 1984 Jan;34(1):1-13. doi: 10.1007/BF02663610.
Three main types of acquired reading disturbance (alexia) have been described and accepted by clinicians. Each features a group of distinct findings and each is found following damage to a separate location within the language dominant hemisphere of the brain. Many different names have been applied to these entities, but posterior alexia, central alexia, and anterior alexia appear to represent both the clinical differentiations and the basic anatomical loci. A fourth type of acquired alexia, called deep dyslexia, has recently been reported, again with separate clinical findings and a different anatomical locus postulated. By comparison of the clinical features of the four alexias with features of alexia in Oriental languages and the reading competency of the nondominant hemisphere, a hypothetical neural basis for the act of reading can be outlined.
临床医生已经描述并接受了三种主要类型的获得性阅读障碍（失读症）。每种类型都具有一组不同的发现，并且每种类型都是在大脑语言优势半球的不同位置受损后发现的。这些实体已经应用了许多不同的名称，但后部失读症、中央失读症和前部失读症似乎既代表了临床差异，也代表了基本的解剖部位。最近又报道了第四种获得性失读症，称为深部失读症，其临床表现也不同，推测的解剖部位也不同。通过将四种失读症的临床特征与东方语言的失读症特征以及非优势半球的阅读能力进行比较，可以概述阅读行为的假设神经基础。
