ArticleBrain and behavior2025
Differences in Finger Dexterity in Patients With Mild and Moderate Alzheimer's Disease-A Study of Cognitive Function by Disease Severity.
Article in Brain and behavior, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- Impaired manual dexterity and its association with the trunk control, disease severity, and dystonia severity in people with cervical dystonia.Acta neurologica Belgica · 2026Article
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Authors and funding
10 authors.
Funding
Abstract
aimThis study aimed to estimate the relationship between finger function and cognitive function in patients with Alzheimer's disease (AD).
methodsPatients diagnosed with AD at the Outpatient Center for Comprehensive Care and Research on Memory Disorder of the National Center for Geriatrics and Gerontology underwent a 15-s bimanual alternating tapping task to measure finger movements. After finger movement measurements, we classified the severity of AD into mild and moderate and compared the finger movements. The Mann-Whitney U test and effect size were used to compare parameter values between the two groups (mild and moderate AD), and the calculated p values were corrected using the Bonferroni method. The Spearman rank correlation coefficient was calculated to determine the association between finger parameters and cognitive function (Mini-Mental Examination [MMSE]).
resultsData from 163 patients with AD were analyzed. When comparing finger parameters between the mild AD (64 individuals) and moderate AD (99 individuals) groups, the moderate AD group demonstrated fewer taps (p = 0.005; r = 0.22) and a longer interval between taps with the thumb and index finger (p = 0.007; r = 0.21) than the mild AD group. The correlation between the MMSE score and finger function was weakly positive for the number of taps and weakly negative for the average of tapping interval.
conclusionsThese parameters reflect the decline in finger function associated with the advanced stages of dementia and may help assess the severity of AD. Additionally, these findings may have clinical utility in assessing the severity of AD, potentially enhancing diagnostic accuracy for differentiating stages of AD.
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