阿尔茨海默症患者话语的衔接与连贯分析

A Cohesion and Coherence Analysis of the Discourse of the Alzheimer's Patients

伴随全球很多国家日益进入老龄化社会,阿尔茨海默症患者的人数呈显著增长趋势。记忆力衰退是该症的显性表征,但研究发现,阿尔茨海默症患者语言功能的退化早于记忆功能的退化,因此研究患者的语言表现对该症的早期预防及筛查无疑具有积极的意义。借助系统功能语言学的衔接与连贯理论,对30名阿尔茨海默症患者和等数健康老年人的话语作了基于衔接与连贯的分析,发现患者在话语构建方面显著低于健康老年人,集中表现为话语的整体连贯受损,同时在话语损伤方面显著高于健康老年人。表明阿尔茨海默症患者的语义记忆和工作记忆均遭受了不同程度的损伤。

The number of the Alzheimer＇ patients is ascending with many countries stepping into aging societies.While memory deterioration is the explicit syndrome of the disease,studies found that language disorder may come before the memory dysfunction,which indicates that it is worthwhile studying the language function of the patients.Based on Systemic functional grammar＇s cohesion and coherence theory,this study analyzes the discourse of 30 Alzheimer＇s patients and 30 healthy counterparts in discourse building,cohesion and discourse impairment.In discourse building,the healthy counterparts outperform the patients.The patients＇ global coherence was significantly impaired.In discourse impairment,the patients significantly outperform their healthy counterparts.The results indicate that the semantic memory and working memory of the patients were compromised.