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The relationship between verbal fluency and semantic processing in patients with Alzheimer Type Dementia Atsushi Toda 1 , Ikuyo Fujita 2 1Speech Therapist Course, Department of Sensory Science, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare 2Graduate School of Health and Welfare Sciences, International University of Health and Welfare Graduate School Keyword: アルツハイマー型認知症 , 言語流暢性課題 , 意味処理 , Alzheimer Type Dementia , verbal fluency task , semantic processing pp.16-23
Published Date 2021/3/15
DOI https://doi.org/10.11477/mf.6001200311
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 We investigated the relationship between the performance on verbal fluency tasks (VFT) and semantic processing impairment in persons with Alzheimer Type Dementia (ATD). The subjects were 15 patients with mild to moderate ATD and 15 healthy elderly controls. Semantic (category) fluency tasks (CFT), phonemic (letter) fluency tasks (LFT), and semantic processing tests for naming, auditory word comprehension, semantic judgment of words to assess semantic processing were developed and administered. The results show that the ATD group recalled significantly fewer words than the control group in both CFT and LFT, but there was no difference in their scores for CFT and LFT. Also, the ATD group showed a decline in the scores of all semantic processing tasks and the scores were related to the number of words recalled in CFT. In CFT, the ATD group tended to start recall from the words that were similar to those of healthy subjects. From these results, we conclude that semantic processing impairment seems to underlie impaired verbal fluency in ATD patients.


Copyright © 2021, Japanese Association of Speech-Language-Hearing Therapists. All rights reserved.

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電子版ISSN 印刷版ISSN 1349-5828 日本言語聴覚士協会

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