ArticleScientific reports2018
Impact of long-term daylight deprivation on retinal light sensitivity, circadian rhythms and sleep during the Antarctic winter.
Article in Scientific reports, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.
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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.
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Who cites it
20 citing papers in PubMed, 54 citations in OpenAlex.
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- Living in Biological Darkness II: Impact of Winter Habitual Daytime Light on Night-Time Sleep.The European journal of neuroscience · 2025Article
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- [Effects of Extreme Environments on Human Sleep].Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition · 2024Review
- Current perspective on circadian function of the kidney.American journal of physiology. Renal physiology · 2024Review
- Seasonal Variation in the Responsiveness of the Melanopsin System to Evening Light: Why We Should Report Season When Collecting Data in Human Sleep and Circadian Studies.Clocks & sleep · 2023Article
- Article
- Individual light history matters to deal with the Antarctic summer.Scientific reports · 2023Article
- How Sleep Research in Extreme Environments Can Inform the Military: Advocating for a Transactional Model of Sleep Adaptation.Current psychiatry reports · 2023Review
- BLUES - stabilizing mood and sleep with blue blocking eyewear in bipolar disorder - a randomized controlled trial study protocol.Annals of medicine · 2023Article
- The role of circadian phase in sleep and performance during Antarctic winter expeditions.Journal of pineal research · 2022Article
- Current Insights into Optimal Lighting for Promoting Sleep and Circadian Health: Brighter Days and the Importance of Sunlight in the Built Environment.Nature and science of sleep · 2022Review
- Living on the edge: How to prepare for it?Frontiers in neuroergonomics · 2022Article
- The Role of Daylight for Humans: Gaps in Current Knowledge.Clocks & sleep · 2020Article
- Circadian Rhythms in the Telephone Calls of Older Adults: Observational Descriptive Study.JMIR mHealth and uHealth · 2020Observational
- Sleep in Isolated, Confined, and Extreme (ICE): A Review on the Different Factors Affecting Human Sleep in ICE.Frontiers in neuroscience · 2020Review
- Can Extra Daytime Light Exposure Improve Well-Being and Sleep? A Pilot Study of Patients With Glaucoma.Frontiers in neurology · 2020Article
Corrections and comments
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Authors and funding
7 authors at 5 institutions in 4 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Long-term daylight deprivation such as during the Antarctic winter has been shown to lead to delayed sleep timing and sleep fragmentation. We aimed at testing whether retinal sensitivity, sleep and circadian rest-activity will change during long-term daylight deprivation on two Antarctic bases (Concordia and Halley VI) in a total of 25 healthy crew members (mean age: 34 ± 11y; 7f). The pupil responses to different light stimuli were used to assess retinal sensitivity changes. Rest-activity cycles were continuously monitored by activity watches. Overall, our data showed increased pupil responses under scotopic (mainly rod-dependent), photopic (mainly L-/M-cone dependent) as well as bright-blue light (mainly melanopsin-dependent) conditions during the time without direct sunlight. Circadian rhythm analysis revealed a significant decay of intra-daily stability, indicating more fragmented rest-activity rhythms during the dark period. Sleep and wake times (as assessed from rest-activity recordings) were significantly delayed after the first month without sunlight (p < 0.05). Our results suggest that during long-term daylight deprivation, retinal sensitivity to blue light increases, whereas circadian rhythm stability decreases and sleep-wake timing is delayed.
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Registered trials
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