Osiejuk E
Faculty of Psychology, Department of Clinical Neuropsychology, University of Warsaw, Poland.
Acta Neurobiol Exp (Wars). 1993;53(1):275-9.
This paper presents a review of the main results of an application of discourse analysis in aphasics with the left hemisphere damages and in the right hemisphere damaged (RHD) patients. Research findings indicate that aphasics have marked deficits on the level of microstructure, especially cohesion of discourse, whereas the coherence and superstructure of their texts are relatively well preserved. RHD patients show difficulties at the microstructure of discourse but not so marked as that of aphasic subjects. The main impairments of RHD patients' discourse can be observed at the level of text coherence. The both populations have also preserved cognitive representation concerned with script knowledge. Discourse processing at macrostructural level of discourse is affected in aphasics as well as in RHD patients. These results suggest that both hemispheres are necessary for normal discourse processes.
本文综述了话语分析在左半球受损的失语症患者和右半球受损（RHD）患者中的主要应用结果。研究结果表明，失语症患者在微观结构层面存在明显缺陷，尤其是话语的衔接方面，而其文本的连贯性和宏观结构相对保存较好。RHD患者在话语微观结构方面存在困难，但不如失语症患者明显。RHD患者话语的主要损伤可在文本连贯性层面观察到。这两类人群也都保留了与脚本知识相关的认知表征。失语症患者和RHD患者在话语宏观结构层面的加工都受到影响。这些结果表明，两个半球对于正常的话语过程都是必需的。
