Coslett H B, Roeltgen D P, Gonzalez Rothi L, Heilman K M
Department of Neurology, Temple University Hospital, Philadelphia, PA 19140.
Brain Lang. 1987 Nov;32(2):362-78. doi: 10.1016/0093-934x(87)90133-7.
Impaired auditory comprehension and fluent but semantically empty speech in conjunction with preserved repetition characterize the syndrome of transcortical sensory aphasia (TSA). Repetition, however, may be mediated by at least two distinct processes--a lexical process that may involve the recognition and subsequent activation of discrete stored word representations and a nonlexical process that involves phonologic decoding and immediate phonologic encoding from immediate memory. We investigated the spontaneous speech, reading, and tendency to recognize and spontaneously correct syntactic errors in four patients with TSA: this analysis suggests there are two subtypes of TSA. We contend that in one subtype both the lexical and direct repetition (or speech production) mechanisms are preserved, but in the second subtype the lexical mechanism is disrupted and repetition is mediated by the nonlexical mechanism.
听觉理解受损、言语流畅但语义空洞且复述能力保留是经皮质感觉性失语症（TSA）综合征的特征。然而，复述可能由至少两个不同的过程介导——一个词汇过程，可能涉及离散存储的单词表征的识别和随后的激活，以及一个非词汇过程，涉及语音解码和从即时记忆中进行即时语音编码。我们研究了4例TSA患者的自发言语、阅读以及识别和自发纠正句法错误的倾向：该分析表明TSA存在两种亚型。我们认为，在一种亚型中，词汇和直接复述（或言语产生）机制均保留，但在第二种亚型中，词汇机制受到破坏，复述由非词汇机制介导。
