자발화를 통한 알츠하이머형 치매와 뇌혈관성 치매의 언어 특성 연구

Abstract

Language damage of dementia is found later than other cognitive damages, which is because it is detected later than other neuro-speech disorders and moreover, because injuries of semantics is harder to be found than expressive speech. It is hard to find these speech specifications of dementia through standard speech tests. Therefore, they need considering by speech analysis on discourse. The purpose of this study is to examine closely into communication problems of dementia as a result of discourse specification on types and degrees of dementia through discourse analysis. The types of dementia in this study are Alzheimer’s dementia and cerebrovescular dementia, and the severe degrees are measured through the scores of‘Clinical Dementia Rating’. Research groups are AD group 44(10-14 per each CDR rating), VD group 40(10 per each CDR rating). The result of study follows below. First, after comparison of discourse specification on types of dementia between group AD and VD, we find out that there is no significant difference in subject-maintaining ability but in other hand, there is significant difference in information- delivery ability. In negative elements of discourse, there is significant difference in‘I have no idea’speech and whole negative elements of discourse between group AD and VD. Group AD shows higher score in the average of‘I have no idea’speech than group VD. When it comes to the comparison of discourse specification between group AD and VD on degree, there is a significant difference in total speech quantity, information-conveying ability,‘I have no idea’speech. There is a significant difference between mild group AD and mild group VD for them while there is a significant difference between moderate groups for subject-maintaining ability. There is a significant difference between severe groups for‘I have no idea’speech.