ArticleJournal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine2020
Sleep and circadian instability in delayed sleep-wake phase disorder.
Article in Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 22 citations in OpenAlex.
- Rationale and protocol for time-based energy intake goals within an obesity care lifestyle intervention: Daily eating patterns for total health study.Contemporary clinical trials · 2026Article
- Naturalistic light exposure patterns in relation to medication status, mood symptoms, and chronotype.Npj biological timing and sleep · 2026Article
- Sleep and circadian disorders as risk factors for autoimmune disease: A population-based study.Neurobiology of sleep and circadian rhythms · 2025Article
- Associations Between Delayed Sleep Phase Syndrome and Daytime Napping with the Metabolic Syndrome Among Adults: Results from the Ravansar Non-Communicable Disease (RaNCD) Cohort Study.Alpha psychiatry · 2024Article
- The relations between chronotype, stressful life events, and impulsivity in the Adolescent Brain Cognitive Development (ABCD) study.Journal of psychiatric research · 2023Article
- Measuring light regularity: sleep regularity is associated with regularity of light exposure in adolescents.Sleep · 2023Article
- Role of Sleep Restriction in Daily Rhythms of Expression of Hypothalamic Core Clock Genes in Mice.Current issues in molecular biology · 2022Article
- Measuring sleep regularity: theoretical properties and practical usage of existing metrics.Sleep · 2021Article
- Light-based methods for predicting circadian phase in delayed sleep-wake phase disorder.Scientific reports · 2021Article
- Robust stability of melatonin circadian phase, sleep metrics, and chronotype across months in young adults living in real-world settings.Journal of pineal research · 2021Article
- Irregular Sleep/Wake Patterns Are Associated With Reduced Quality of Life in Post-treatment Cancer Patients: A Study Across Three Cancer Cohorts.Frontiers in neuroscience · 2021Article
- Evening home lighting adversely impacts the circadian system and sleep.Scientific reports · 2020Article
Corrections and comments
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Authors and funding
6 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
STUDY
objectivesIn patients with delayed sleep-wake phase disorder (DSWPD), the circadian clock may be more easily affected by light at night. This creates a potential vulnerability, whereby individuals with irregular schedules may have less stable circadian rhythms. We investigated the stability of circadian timing and regularity of sleep in patients with DSWPD and healthy controls.
methodsParticipants completed 2 dim-light melatonin onset (DLMO) assessments approximately 2 weeks apart while keeping their habitual sleep/wake schedule. After the second DLMO assessment, light sensitivity was assessed using the phase-resetting response to a 6.5-hour 150-lux stimulus. The change in DLMO timing (DLMO instability) was assessed and related to light sensitivity and the sleep regularity index.
resultsRelative to healthy controls, patients with DSWPD had later sleep rhythm timing relative to clock time, earlier sleep rhythm timing relative to DLMO, lower sleep regularity index, and greater DLMO instability. Greater DLMO instability was associated with increased light sensitivity across all participants, but not within groups.
conclusionsWe find that circadian timing is less stable and sleep is less regular in patients with DSWPD, which could contribute to etiology of the disorder. Measures of light sensitivity may be informative in generating DSWPD treatment plans.
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