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Detecting Sleep/Wake Rhythm Disruption Related to Cognition in Older Adults With and Without Mild Cognitive Impairment Using the myRhythmWatch Platform: Feasibility and Correlation Study

Detecting Sleep/Wake Rhythm Disruption Related to Cognition in Older Adults With and Without Mild Cognitive Impairment Using the myRhythmWatch Platform: Feasibility and Correlation Study

Set-shifting, an aspect of cognitive function, was measured as the time taken using Part B of the O-TMT, which requires the subject to alternate between listing numbers and letters in sequence (“1, A, 2, B,” etc). Note that longer times on both parts of the O-TMT indicates worse performance [21]. To compare recording lengths between the MCI and NCD groups, we used an independent sample t test and density plots illustrating recording length distributions by groups.

Caleb D Jones, Rachel Wasilko, Gehui Zhang, Katie L Stone, Swathi Gujral, Juleen Rodakowski, Stephen F Smagula

JMIR Aging 2025;8:e67294