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Significance of the Trail Making Test in elderly dementia patients: Studies in patients with mild cognitive impairment and Alzheimer's disease Atsushi Toda 1 , Shinsuke Nagami 2 , Ayako Katsumata 3 , Jun Tanemura 2 1Speech-Language-Hearing Therapist Course, Department of Sensory Science, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare 2Department of Speech-Language Pathology and Audiology, Faculty of Rehabilitation, Kawasaki University of Medical Welfare 3Outpatient Rehabilitation RirakuRiha AIZU Keyword: 加齢 , 認知症 , 軽度認知障害 , 遂行機能 , Trail Making Test , aging , dementia , mild cognitive impairment , executive function pp.133-140
Published Date 2022/6/15
DOI https://doi.org/10.11477/mf.6001200375
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 The characteristic symptom of Alzheimer's disease (AD) is amnesia, and there is research that executive dysfunction is also recognized from the very early stage of the disease process. The cognitive basis for executive function is complicated, and it seems to be greatly affected by aging. This study investigated the significance of the Trail Making Test (TMT), which reflects attention and executive function, in evaluating elderly patients. The subjects were 12 healthy elderly (HE) subjects, 12 subjects with mild cognitive impairment (MCI) , and 13 AD subjects. They were tested with TMT, Mini-Mental State Examination (MMSE), and Raven's Coloured Progressive Matrices (RCPM). The time required for TMT in the AD group was not different from that in the MCI group, but it was significantly longer than in the HE group. The ratio of abnormal B/A value was significantly higher in the AD group than in the MCI and HE groups. There were significant correlations between TMT and both MMSE and RCPM, but there were some subjects whose performance showed difference. Thus, the B/A value of TMT was found useful for the differentiation of AD and for evaluation of execution function in elderly patients.


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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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