ArticleJournal of biological rhythms2017
Daily Light Exposure Patterns Reveal Phase and Period of the Human Circadian Clock.
Article in Journal of biological rhythms, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 53 papers.
What it found
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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.
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Who cites it
53 citing papers in PubMed.
- Different light color temperatures in the morning on the effectiveness of rehabilitation training in patients with ischemic stroke: a prospective, single-center, randomized controlled clinical trial.Journal of neuroengineering and rehabilitation · 2025Trial
- Trial
- The effects of a real-life lifestyle program on physical activity and objective and subjective sleep in adults aged 55+ years.BMC public health · 2022Trial
- Early chronotype with advanced activity rhythms and dim light melatonin onset in a rural population.Journal of pineal research · 2020Trial
- Who Needs Bright Light and When? Mapping the Interactions of Lighting Environments and Individual Differences in Circadian Light Sensitivity.Journal of biological rhythms · 2026Article
- Circadian Phase Estimation From Ambulatory Wearables With Particle Filtering: Accuracy Depends on Initialization, Recording Duration, and Light Exposure.Journal of biological rhythms · 2026Article
- Opportunities for RNA sequencing in physiology: from big data to understanding homeostasis and heterogeneity.Function (Oxford, England) · 2026Review
- The relationship between sleep and circadian-sleep phase angles based on dim light melatonin onset predicted from light and activity data.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2025Article
- The complexity and commonness of the two-process model of sleep regulation from a mathematical perspective.Npj biological timing and sleep · 2025Article
- The real-world association between digital markers of circadian disruption and mental health risks.NPJ digital medicine · 2024Article
- Accurately predicting mood episodes in mood disorder patients using wearable sleep and circadian rhythm features.NPJ digital medicine · 2024Article
- Article
- Improving adjustment to daylight saving time transitions with light.Scientific reports · 2024Article
- Mathematical Analysis of Light-sensitivity Related Challenges in Assessment of the Intrinsic Period of the Human Circadian Pacemaker.Journal of biological rhythms · 2024Article
- Higher Levels of Morning and Daytime Light Exposure Associated with Positive Sleep Indices in Professional Team Sport Athletes.Nature and science of sleep · 2024Article
- Days to re-entrainment following the spring and autumn changes in local clock time: Beyond simple heuristics.Frontiers in photonics · 2024Article
- Human-Centric Lighting Research and Policy in the Melanopsin Age.Policy insights from the behavioral and brain sciences · 2023Article
- Article
- Machine learning estimation of human body time using metabolomic profiling.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Night-to-night associations between light exposure and sleep health.Journal of sleep research · 2023Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Light is the most potent time cue that synchronizes (entrains) the circadian pacemaker to the 24-h solar cycle. This entrainment process is an interplay between an individual's daily light perception and intrinsic pacemaker period under free-running conditions. Establishing individual estimates of circadian phase and period can be time-consuming. We show that circadian phase can be accurately predicted (SD = 1.1 h for dim light melatonin onset, DLMO) using 9 days of ambulatory light and activity data as an input to Kronauer's limit-cycle model for the human circadian system. This approach also yields an estimated circadian period of 24.2 h (SD = 0.2 h), with longer periods resulting in later DLMOs. A larger amount of daylight exposure resulted in an earlier DLMO. Individuals with a long circadian period also showed shorter intervals between DLMO and sleep timing. When a field-based estimation of tau can be validated under laboratory studies in a wide variety of individuals, the proposed methods may prove to be essential tools for individualized chronotherapy and light treatment for shift work and jetlag applications. These methods may improve our understanding of fundamental properties of human circadian rhythms under daily living conditions.
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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.