Author

Fiona C. Baker

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Review Open access Sep 2026

A systematic review of digital and wearable sensor data in the ABCD study: Insights, methods, and emerging opportunities.

Research into key adolescent health domains, like problematic screen-based media use, sleep health, and physical activity, are frequently limited by error-prone self-report-based measures. To improve the measurement of such behaviors, the Adolescent Brain Cognitive Development Study (ABCD), a diverse longitudinal cohor...

Jordan D. Alexander, S. Mills, Kelsey Sumpter et al. · Developmental Cognitive Neur... · 0 citations

Open access Jul 2026

Sleep Pattern Differences in Women at Midlife: A Large-Scale Multi-Country Smartwatch Study (SONAR).

STUDY OBJECTIVES To evaluate associations between age and objectively measured sleep in women. METHODS We analyzed ~3.8 million nights' data from 192 500 female Galaxy Smartwatch users aged 20-65 years (United States, South Korea, Germany, France, and the UK) with ≥7 nights' sleep data during March 2024. We evaluated...

Claudio N. Soares, Carina Dinkel-Keuthage, Fiona C. Baker et al. · Sleep · 0 citations

Aug 2026

Characterizing Nonlinear Heterogeneous Sleep Trajectories across the Menstrual Cycle in a Transdiagnostic Psychiatric Population.

Sleep trajectories across the menstrual cycle are heterogeneous and meaningfully coupled with psychiatric symptom patterns, which support cycle-aware sleep monitoring and suggest that cyclical sleep disruption may help identify windows of heightened psychiatric risk, motivating replication and personalized intervention...

A. Nagpal, Anna Patterson, Ashley Ross et al. · Sleep · 0 citations

Open access Jul 2026

Associations between objective sleep duration, sleep duration variability, and sleep onset with emotion regulation and internalizing symptoms in adolescents: findings from the ABCD® study.

Investigation of cross-sectional associations between objective sleep features (sleep duration, duration variability, and onset time) and mental health outcomes in 1371 U.S. adolescents found objective sleep features were differentially associated with mental health outcomes.

S. Izabel, Orsolya Kiss, Adam J. Krause et al. · npj Mental Health Research · 0 citations