Trial reportSleep medicine2011
Effects of an advanced sleep schedule and morning short wavelength light exposure on circadian phase in young adults with late sleep schedules.
Trial report in Sleep medicine, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers, 3 of them syntheses that pooled it.
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
36 citing papers in PubMed, 3 syntheses or guidelines pooled it.
- Circadian realignment and depressed mood: A systematic review.Sleep medicine reviews · 2025Pooled it
- Evaluation of the Accuracy of Contactless Consumer Sleep-Tracking Devices Application in Human Experiment: A Systematic Review and Meta-Analysis.Sensors (Basel, Switzerland) · 2023Pooled it
- Clinical Practice Guideline for the Treatment of Intrinsic Circadian Rhythm Sleep-Wake Disorders: Advanced Sleep-Wake Phase Disorder (ASWPD), Delayed Sleep-Wake Phase Disorder (DSWPD), Non-24-Hour Sleep-Wake Rhythm Disorder (N24SWD), and Irregular Sleep-Wake Rhythm Disorder (ISWRD). An Update for 2015: An American Academy of Sleep Medicine Clinical Practice Guideline.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2015Guideline
- Advanced sleep schedules affect circadian gene expression in young adults with delayed sleep schedules.Sleep medicine · 2013Trial
- Human phase response curve to intermittent blue light using a commercially available device.The Journal of physiology · 2012Trial
- Circadian Biomarkers Before and After the Transition to Spring Daylight Saving Time.Sleep science (Sao Paulo, Brazil) · 2026Article
- An Investigation into the Effects of Correlated Color Temperature and Illuminance of Urban Motor Vehicle Road Lighting on Driver Alertness.Sensors (Basel, Switzerland) · 2024Article
- Bright Light Therapy for Major Depressive Disorder in Adolescent Outpatients: A Preliminary Study.Clocks & sleep · 2024Article
- Days to re-entrainment following the spring and autumn changes in local clock time: Beyond simple heuristics.Frontiers in photonics · 2024Article
- Circadian phase advances in children during camping life according to the natural light-dark cycle.Journal of physiological anthropology · 2022Article
- Efficacy of a Combination Therapy for Difficulties Waking Up in Non-School-Attending Students.Journal of clinical medicine · 2022Article
- The circadian stimulus-oscillator model: Improvements to Kronauer's model of the human circadian pacemaker.Frontiers in neuroscience · 2022Article
- Sleep's role in the development and resolution of adolescent depression.Nature reviews psychology · 2022Review
- Understanding Sleep-Wake Behavior in Late Chronotype Adolescents: The Role of Circadian Phase, Sleep Timing, and Sleep Propensity.Frontiers in psychiatry · 2022Article
- Treatment of Circadian Rhythm Sleep-Wake Disorders.Current neuropharmacology · 2022Review
- Assessing Chronotypes by Ambulatory Circadian Monitoring.Frontiers in physiology · 2019Article
- Habitual light exposure relative to circadian timing in delayed sleep-wake phase disorder.Sleep · 2018Article
- Delayed sleep-wake phase disorder.Journal of thoracic disease · 2018Review
- Non-visual effects of light: how to use light to promote circadian entrainment and elicit alertness.Lighting research & technology (London, England : 2001) · 2018Article
- Central and peripheral circadian clocks and their role in Alzheimer's disease.Disease models & mechanisms · 2017Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
Abstract
objectiveWe examined the effects of an advanced sleep/wake schedule and morning short wavelength (blue) light in 25 adults (mean age±SD=21.8±3 years; 13 women) with late sleep schedules and subclinical features of delayed sleep phase disorder (DSPD).
methodsAfter a baseline week, participants kept individualized, fixed, advanced 7.5-h sleep schedules for 6days. Participants were randomly assigned to groups to receive "blue" (470nm, ∼225lux, n=12) or "dim" (<1lux, n=13) light for 1h after waking each day. Head-worn "Daysimeters" measured light exposure; actigraphs and sleep diaries confirmed schedule compliance. Salivary dim light melatonin onset (DLMO), self-reported sleep, and mood were examined with 2×2 ANOVA.
resultsAfter 6days, both groups showed significant circadian phase advances, but morning blue light was not associated with larger phase shifts than dim-light exposure. The average DLMO advances (mean±SD) were 1.5±1.1h in the dim light group and 1.4±0.7h in the blue light group.
conclusionsAdherence to a fixed advanced sleep/wake schedule resulted in significant circadian phase shifts in young adults with subclinical DSPD with or without morning blue light exposure. Light/dark exposures associated with fixed early sleep schedules are sufficient to advance circadian phase in young adults.
Indexed as
Identifiers
What OpenQuestion holds
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.