References
- Borbély AA. A two process model of sleep regulation. Hum Neurobiol. 1982;1(3):195–11.
- Borbély AA, Daan S, Wirz-Justice A, et al. The two process model of sleep regulation: a reappraisal. J Sleep Res. 2016;25(2):131–143.
- García-García F, Drucker-Colin R. Endogenous and exogenous factors on sleep-wake cycle regulation. Prog Neurobiol. 1999;58(4):297–314.
- Jewett ME, Rimmer DW, Duffy JF, et al. Human circadian pacemaker is sensitive to light throughout subjective day without evidence of transients. Am J Physiol. 1997;273:1800–1809.
- LeGates TA, Fernandez DC, Hattar S. Light as a central modulator of circadian rhythms, sleep and affect. Nat Rev Neurosci. 2014;15(7):443–454.
- Czeisler CA, Kronauer RE, Allan JS, et al. Bright light induction of strong (type 0) resetting of the human circadian pacemaker. Science. 1989;244(4910):1328–1333.
- Minors DS, Waterhouse JM, Wirz-Justice A. A human phase-response curve to light. Neurosci Lett. 1991;133:36–40.
- Arendt J. Biological rhythms during residence in polar regions. Chronobiol Int. 2012;29(4):379–394.
- Marqueze EC, Vasconcelos S, Garefelt J, et al. Natural light exposure, sleep and depression among day workers and shiftworkers at arctic and equatorial latitudes. PLOS One. 2015;10(4):e0122078.
- Bhattacharyya M, Pal MS, Sharma YK, et al. Changes in sleep patterns during prolonged stays in Antarctica. Int J Biometeorol. 2008;52(8):869–879.
- Friborg O, Bjorvatn B, Amponsah B, et al. Associations between seasonal variations in day length (photoperiod), sleep timing, sleep quality and mood: a comparison between Ghana (5°) and Norway (69°). J Sleep Res. 2012;21(2):176–184.
- Johnsen MT, Wynn R, Bratlid T. Is there a negative impact of winter on mental distress and sleeping problems in the subarctic: the Tromso study. BMC Psychiatry. 2012;12:225.
- Friborg O, Rosenvinge JH, Wynn R, et al. Sleep timing, chronotype, mood, and behavior at an Arctic latitude (69° N). Sleep Med. 2014;15(7):798–807.
- Pallesen S, Nordhus IH, Nielsen GH, et al. Prevalence of insomnia in the adult Norwegian population. Sleep. 2001;24(7):771–779.
- Pattyn N, Van Puyvelde M, Fernandez-Tellez H, et al. From the midnight sun to the longest night: sleep in Antarctica. Sleep Med Rev. 2018;37:159–172.
- Brychta RJ, Arnardottir NY, Johannsson E, et al. Influence of day length and physical activity on sleep patterns in older Icelandic men and women. J Clin Sleep Med. 2016;12(2):203–213.
- Paul MA, Love RJ, Hawton A, et al. Sleep and the endogenous melatonin rhythm of high arctic residents during the summer and winter. Physiol Behav. 2015;141:199–206.
- Pattyn N, Mairesse O, Cortoos A, et al. Sleep during an Antarctic summer expedition: new light on “polar insomnia.”. J Appl Physiol. 2017;122(4):788–794.
- Buysse DJ, Reynolds CF, Monk TH, et al. The Pittsburgh sleep quality index: a new instrument for psychiatric practice and research. Psychiatry Res. 1989;28(2):193–213.
- Morin CM. Insomnia, psychological assessment and management. New York (NY): Guilford Press; 1993.
- Bastien CH, Vallieres A, Morin CM. Validation of the insomnia severity index as an outcome measure for insomnia research. Sleep Med. 2001;2(4):297–307.
- Zallek SN, Redenius R, Fisk H, et al. A single question as a sleepiness screening tool. J Clin Sleep Med. 2008;4(2):143–148.
- Mastin DF, Bryson J, Corwyn R. Assessment of sleep hygiene using the sleep hygiene index. J Behav Med. 2006;29(3):223–227.
- Paul MA, Love RJ, Hawton A, et al. Sleep deficits in the high Arctic summer in relation to light exposure and behavior: use of melatonin as a countermeasure. Sleep Med. 2015;16(3):406–413.
- Erren TC, Groß JV, Fritschi L. Focusing on the biological night: towards an epidemiological measure of circadian disruption. Occup Environ Med. 2017;74(3):159–160.
- Ottoni GL, Antoniolli E, Lara DR. The Circadian Energy Scale (CIRENS): two simple questions for a reliable chronotype measurement based on energy. Chronobiol Int. 2011;28(3):229–337.
- Horne JA, Östberg O. A self-assessment questionnaire to determine morningness- eveningness in human circadian rhythms. Int J Chronobiol. 1976;4(2):97–100.
- Cohen J. Statistical power analysis for the behavioral sciences. 2nd ed. Hillsdale (NJ): Lawrence Erlbaum Associates; 1988.
- Altman DG, Gardner MJ. Regression and correlation. In: Altman DG, Machin D, Bryant TN, et al., editors. Statistics with confidence. 2nd ed. London: BMJ Books; 2000. p. 73–92.
- Mitterling T, Högl B, Schönwald SV, et al. Sleep and respiration in 100 healthy Caucasian sleepers- a polysomnographic study according to American academy of Sleep Medicine Standards. Sleep. 2015;38(6):867–875.
- Burgess HJ. Evening ambient light exposure can reduce circadian phase advances to morning light independent of sleep deprivation. J Sleep Res. 2013;22(1):83–88.
- Duffy JF, Czeisler CA. Effect of light on human circadian physiology. Sleep Med Clin. 2009;4(2):165–177.
- Gooley JJ, Chamberlain K, Smith KA, et al. Exposure to room light before bedtime suppresses melatonin onset and shortens melatonin duration in humans. J Clin Endocrinol Metab. 2011;96(3):E463–E472.
- Obayashi K, Saeki K, Kurumatani N. Association between light exposure at night and insomnia in the general elderly population: the HEIJO-KYO cohort. Chronobiol Int. 2014;31(9):976–982.
- Beersma DG, Daan S, Hut RA. Accuracy of circadian entrainment under fluctuating light conditions: contributions of phase and period responses. J Biol Rhythms. 1999;14(4):320–329.
- Borisenkov MF. The pattern of entrainment of the human sleep-wake rhythm by the natural photoperiod in the north. Chronobiol Int. 2011;28(10):921–929.
- Gravetter FJ, Wallnau LB, Forzano LB. Essentials of statistics for the behavioral sciences. 9th ed. Boston (MA): Cengage; 2018.
- Faul F, Erdfelder E, Lang AG, et al. G*Power 3: a flexible statistical power analysis program for the social, behavioral, and biomedical sciences. Behav Res Methods. 2007;39(2):175–191.
- Hoenig JM, Heisey DM. The abuse of power: the pervasive fallacy of power calculations for data analysis. Am Stat. 2001;55(1):19–24.