ArticleGeroScience2026
Smartphone self-testing of hand and speech motor functions: a study of reliability and usability in older adults.
Article in GeroScience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
2 citing papers in PubMed.
- Motor speech markers of Alzheimer's risk.GeroScience · 2026Article
- Real-Time Smartphone Monitoring Assessments as a Cognitive Biomarker of Alzheimer Disease: Protocol for a Development Study.JMIR research protocols · 2026Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
13 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Scalable remote-monitoring tools of motor function are vital for early detection and tracking of neurodegenerative diseases. This study evaluated the reliability and usability of TapTalk, a 2-min validated smartphone-based self-assessment of hand and speech motor function, in older adults. Community-dwelling adults aged 50 + completed TapTalk daily for 7 days: once in the research center and six consecutive days at home. Motor features were extracted using validated algorithms. Test-retest reliability was analyzed using intraclass correlation coefficient (ICC) and usability via descriptive analysis of user-experience questionnaires. Four-hundred and twenty-five sessions of TapTalk were completed by 68 participants (68.6 ± 6.6 years; range 57-80; 75% female) across 43 smartphone models. All tests had features with ICC > 0.5 except for one, indicating acceptable reliability for a self-administered in-home test. Usability scores averaged 95.9% reflecting high satisfaction with ease-of-use, clarity, and performance. Findings support TapTalk's potential for scalable longitudinal monitoring. Establishing reliability and usability in older adults is a critical step toward TapTalk's broader use by those with neurodegenerative diseases.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.