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Landrigan, Christopher P., Rahman, Shadab, Sullivan, Jason P., Vittinghoff, Eric, Barger, Laura, Sanderson, Amy L., Wright Jr., Kenneth P., O'Brien, Conor S., Qadri, Salim, St. Hilaire, Melissa A., Halblower, Ann C., Segar, Jeffrey L., McGuire, John K., Vitiello, Michael V., de la Iglesia, Horacio O., Poynter, Sue E., Yu, Pearl L., Zee, Phyllis C., Lockley, Steven, Stone, Katie L. and Czeisler, Charles A. (2020) Effect on Patient Safety of a Resident Physician Schedule without 24-Hour Shifts New England Journal of Medicine, 382. pp. 2514-2523.

Grant, L.K., Gooley, J.J., St Hilaire, M.A., Rajaratnam, S.M.W., Brainard, G.C., Czeisler, C.A., Lockley, S.W. and Rahman, S.A. (2020) Menstrual phase-dependent differences in neurobehavioral performance: The role of temperature and the progesterone/estradiol ratio Sleep, 43 (2).

Peterson, S.A., Wolkow, A.P., Lockley, S.W., O'Brien, C.S., Qadri, S., Sullivan, J.P., Czeisler, C.A., Rajaratnam, S.M.W. and Barger, L.K. (2019) Associations between shift work characteristics, shift work schedules, sleep and burnout in North American police officers: A cross-sectional study BMJ Open, 9 (11).

Wolkow, A.P., Barger, L.K., O'Brien, C.S., Sullivan, J.P., Qadri, S., Lockley, S.W., Czeisler, C.A. and Rajaratnam, S.M.W. (2019) Associations between sleep disturbances, mental health outcomes and burnout in firefighters, and the mediating role of sleep during overnight work: A cross-sectional study Journal of Sleep Research, 28 (6).

St Hilaire, M.A., Anderson, C., Anwar, J., Sullivan, J.P., Cade, B.E., Flynn-Evans, E.E., Czeisler, C.A. and Lockley, S.W. (2019) Brief (<4 hr) sleep episodes are insufficient for restoring performance in first-year resident physicians working overnight extended-duration work shifts Sleep, 42 (5).

Rahman, S.A., Wright, K.P., Lockley, S.W., Czeisler, C.A. and Gronfier, C. (2019) Characterizing the temporal Dynamics of Melatonin and Cortisol Changes in Response to Nocturnal Light Exposure Scientific Reports, 9 (1).

Chang, A.-M., Duffy, J.F., Buxton, O.M., Lane, J.M., Aeschbach, D., Anderson, C., Bjonnes, A.C., Cain, S.W., Cohen, D.A., Frayling, T.M., Gooley, J.J., Jones, S.E., Klerman, E.B., Lockley, S.W., Munch, M., Rajaratnam, S.M.W., Rueger, M., Rutter, M.K., Santhi, N., Scheuermaier, K., Van Reen, E., Weedon, M.N., Czeisler, C.A., Scheer, F.A.J.L. and Saxena, R. (2019) Chronotype Genetic Variant in PER2 is Associated with Intrinsic Circadian Period in Humans Scientific Reports, 9 (1).

Chua, E.C.-P., Sullivan, J.P., Duffy, J.F., Klerman, E.B., Lockley, S.W., Kristal, B.S., Czeisler, C.A. and Gooley, J.J. (2019) Classifying attentional vulnerability to total sleep deprivation using baseline features of Psychomotor Vigilance Test performance Scientific Reports, 9 (1).

Blackwell, T., Kriesel, D.R., Vittinghoff, E., O'Brien, C.S., Sullivan, J.P., Viyaran, N.C., Rahman, S.A., Lockley, S.W., Barger, L.K., Halbower, A.C., Poynter, S.E., Wright, K.P., Yu, P.L., Zee, P.C., Landrigan, C.P., Czeisler, C.A. and Stone, K.L. (2019) Design and recruitment of the randomized order safety trial evaluating resident-physician schedules (ROSTERS) study Contemporary Clinical Trials, 80. pp. 22-33.

Barger, L.K., Sullivan, J.P., Blackwell, T., O'Brien, C.S., St Hilaire, M.A., Rahman, S.A., Phillips, A.J.K., Qadri, S., Wright, K.P., Segar, J.L., McGuire, J.K., Vitiello, M.V., De La Iglesia, H.O., Poynter, S.E., Yu, P.L., Zee, P., Sanderson, A.L., Halbower, A.C., Lockley, S.W., Landrigan, C.P., Stone, K.L. and Czeisler, C.A. (2019) Effects on resident work hours, sleep duration, and work experience in a randomized order safety trial evaluating resident-physician schedules (ROSTERS) Sleep, 42 (8).

Rahman, S.A., Grant, L.K., Gooley, J.J., Rajaratnam, S.M.W., Czeisler, C.A. and Lockley, Steven (2019) Endogenous Circadian Regulation of Female Reproductive Hormones Journal of Clinical Endocrinology and Metabolism, 104 (12). pp. 6049-6059.

St. Hilaire, M.A., Kristal, B.S., Rahman, S.A., Sullivan, J.P., Quackenbush, J., Duffy, J.F., Barger, L.K., Gooley, J.J., Czeisler, C.A. and Lockley, S.W. (2019) Using a Single Daytime Performance Test to Identify Most Individuals at High-Risk for Performance Impairment during Extended Wake Scientific Reports, 9 (1).

Rahman, Shadab A., St Hilaire, Melissa A., Gronfier, Claude, Chang, Anne-Marie, Santhi, Nayantara, Czeisler, Charles A., Klerman, Elizabeth B. and Lockley, Steven W. (2018) Functional decoupling of melatonin suppression and circadian phase resetting in humans The Journal of Physiology, 596 (11). pp. 2147-2157.

Ogeil, R.P., Barger, L.K., Lockley, S.W., O'Brien, C.S., Sullivan, J.P., Qadri, S., Lubman, D.I., Czeisler, C.A. and Rajaratnam, S.M.W. (2018) Cross-sectional analysis of sleep-promoting and wake-promoting drug use on health, fatigue-related error, and near-crashes in police officers BMJ open, 8 (9).

Rahman, S.A., St Hilaire, M.A., Gronfier, C., Chang, A.-M., Santhi, N., Czeisler, C.A., Klerman, E.B. and Lockley, S.W. (2018) Functional decoupling of melatonin suppression and circadian phase resetting in humans Journal of Physiology, 596 (11). pp. 2147-2157.

Vidafar, P., Gooley, J.J., Burns, A.C., Rajaratnam, S.M.W., Rueger, M., Van Reen, E., Czeisler, C.A., Lockley, S.W. and Cain, S.W. (2018) Increased vulnerability to attentional failure during acute sleep deprivation in women depends on menstrual phase Sleep, 41 (8).

Vandewalle, G., van Ackeren, M.J., Daneault, V., Hull, J.T., Albouy, G., Lepore, F., Doyon, J., Czeisler, C.A., Dumont, M., Carrier, J., Lockley, S.W. and Collignon, O. (2018) Light modulates oscillatory alpha activity in the occipital cortex of totally visually blind individuals with intact non-image-forming photoreception Scientific Reports, 8 (1).

Anderson, C., Ftouni, S., Ronda, J.M., Rajaratnam, S.M.W., Czeisler, C.A. and Lockley, S.W. (2018) Self-reported drowsiness and safety outcomes while driving after an extended duration work shift in trainee physicians Sleep, 41 (2).

Hull, J.T., Czeisler, C.A. and Lockley, S.W. (2018) Suppression of Melatonin Secretion in Totally Visually Blind People by Ocular Exposure to White Light: Clinical Characteristics Ophthalmology, 125 (8). pp. 1160-1171.

Rahman, SA, St. Hilaire, MA, Chang, A-M, Santhi, Nayantara, Duffy, JF, Kronauer, RE, Czeisler, CA, Lockley, SW and Klerman, EB (2017) Circadian phase resetting by a single short-duration light exposure JCI Insight, 2 (7), e89494.

Rahman, S.A., St Hilaire, M.A., Chang, A.-M., Santhi, N., Duffy, J.F., Kronauer, R.E., Czeisler, C.A., Lockley, S.W. and Klerman, E.B. (2017) Circadian phase resetting by a single short-duration light exposure JCI insight, 2 (7).

Phillips, A.J.K., Clerx, W.M., O'Brien, C.S., Sano, A., Barger, L.K., Picard, R.W., Lockley, S.W., Klerman, E.B. and Czeisler, C.A. (2017) Irregular sleep/wake patterns are associated with poorer academic performance and delayed circadian and sleep/wake timing Scientific Reports, 7 (1).

Sullivan, J.P., O'Brien, C.S., Barger, L.K., Rajaratnam, S.M.W., Czeisler, C.A. and Lockley, S.W. (2017) Randomized, prospective study of the impact of a sleep health program on firefighter injury and disability Sleep, 40 (1).

de la Iglesia, HO, Moreno, C, Lowden, A, Louzada, F, Marqueze, E, Levandovski, R, Pilz, LK, Valeggia, C, Fernandez-Duque, E, Golombek, DA, Czeisler, CA, Skene, Debra, Duffy, JF and Roenneberg, T (2016) Ancestral sleep. Current Biology, 26 (7). R271-R272.

Chang, A.-M., Bjonnes, A.C., Aeschbach, D., Buxton, O.M., Gooley, J.J., Anderson, C., Van Reen, E., Cain, S.W., Czeisler, C.A., Duffy, J.F., Lockley, S.W., Shea, S.A., Scheer, F.A.J.L. and Saxena, R. (2016) Circadian gene variants influence sleep and the sleep electroencephalogram in humans Chronobiology International, 33 (5). pp. 561-573.

Lane, J.M., Chang, A.-M., Bjonnes, A.C., Aeschbach, D., Anderson, C., Cade, B.E., Cain, S.W., Czeisler, C.A., Gharib, S.A., Gooley, J.J., Gottlieb, D.J., Grant, S.F.A., Klerman, E.B., Lauderdale, D.S., Lockley, Steven, Munch, M., Patel, S., Punjabi, N.M., Rajaratnam, S.M.W., Rueger, M., St. Hilaire, M.A., Santhi, Nayantara, Scheuermaier, K., Van Reen, E., Zee, P.C., Shea, S.A., Duffy, J.F., Buxton, O.M., Redline, S., Scheer, F.A.J.L. and Saxena, R. (2016) Impact of common diabetes risk variant in MTNR1B on sleep, circadian, and melatonin physiology Diabetes, 65 (6). pp. 1741-1751.

Barger, L.K., O'Brien, C.S., Rajaratnam, S.M.W., Qadri, S., Sullivan, J.P., Wang, W., Czeisler, C.A. and Lockley, S.W. (2016) Implementing a sleep health education and sleep disorders screening program in fire departments Journal of Occupational and Environmental Medicine, 58 (6). pp. 601-609.

Sigurdardottir, L.G., Markt, S.C., Sigurdsson, S., Aspelund, T., Fall, K., Schernhammer, E., Rider, J.R., Launer, L., Harris, T., Stampfer, M.J., Gudnason, V., Czeisler, C.A., Lockley, S.W., Valdimarsdottir, U.A. and Mucci, L.A. (2016) Pineal gland volume assessed by MRI and its correlation with 6-sulfatoxymelatonin levels among older men Journal of Biological Rhythms, 31 (5). pp. 461-469.

Markt, S.C., Flynn-Evans, E.E., Valdimarsdottir, U.A., Sigurdardottir, L.G., Tamimi, R.M., Batista, J.L., Haneuse, S., Lockley, S.W., Stampfer, M., Wilson, K.M., Czeisler, C.A., Rider, J.R. and Mucci, L.A. (2016) Sleep duration and disruption and prostate cancer risk: A 23-year prospective study Cancer Epidemiology Biomarkers and Prevention, 25 (2). pp. 302-308.

Markt, S.C., Valdimarsdottir, U.A., Shui, I.M., Sigurdardottir, L.G., Rider, J.R., Tamimi, R.M., Batista, J.L., Haneuse, S., Flynn-Evans, E., Lockley, S.W., Czeisler, C.A., Stampfer, M.J., Launer, L., Harris, T., Smith, A.V., Gudnason, V., Lindstrom, S., Kraft, P. and Mucci, L.A. (2015) Circadian clock genes and risk of fatal prostate cancer Cancer Causes and Control, 26 (1). pp. 25-33.

Barger, L.K., Rajaratnam, S.M.W., Wang, W., O'Brien, C.S., Sullivan, J.P., Qadri, S., Lockley, S.W. and Czeisler, C.A. (2015) Common sleep disorders increase risk of motor vehicle crashes and adverse health outcomes in firefighters Journal of Clinical Sleep Medicine, 11 (3). pp. 233-240.

Rahman, S.A., Castanon-Cervantes, O., Scheer, F.A.J.L., Shea, S.A., Czeisler, C.A., Davidson, A.J. and Lockley, S.W. (2015) Endogenous circadian regulation of pro-inflammatory cytokines and chemokines in the presence of bacterial lipopolysaccharide in humans Brain, Behavior, and Immunity, 47. pp. 4-13.

Sigurdardottir, L.G., Markt, S.C., Rider, J.R., Haneuse, S., Fall, K., Schernhammer, E.S., Tamimi, R.M., Flynn-Evans, E., Batista, J.L., Launer, L., Harris, T., Aspelund, T., Stampfer, M.J., Gudnason, V., Czeisler, C.A., Lockley, S.W., Valdimarsdottir, U.A. and Mucci, L.A. (2015) Urinary melatonin levels, sleep disruption, and risk of prostate cancer in elderly men European Urology, 67 (2). pp. 191-194.

Rahman, S.A., Flynn-Evans, E.E., Aeschbach, D., Brainard, G.C., Czeisler, C.A. and Lockley, Steven (2014) Diurnal spectral sensitivity of the acute alerting effects of light Sleep, 37 (2). pp. 271-281.

Lucas, R.J., Peirson, S.N., Berson, D.M., Brown, T.M., Cooper, H.M., Czeisler, C.A., Figueiro, M.G., Gamlin, P.D., Lockley, S.W., O'Hagan, J.B., Price, L.L.A., Provencio, I., Skene, D.J. and Brainard, G.C. (2014) Measuring and using light in the melanopsin age Trends in Neurosciences, 37 (1). pp. 1-9.

Barger, L.K., Wright Jr., K.P., Burke, T.M., Chinoy, E.D., Ronda, J.M., Lockley, S.W. and Czeisler, C.A. (2014) Sleep and cognitive function of crewmembers and mission controllers working 24-h shifts during a simulated 105-day spaceflight mission Acta Astronautica, 93. pp. 230-242.

Lucas, R, Brown, T, Peirson, SN, Berson, DM, Cooper, H, Czeisler, CA, Lockley, SW, Figueiro, MG, Gamlin, PD, O'Hagan, JB, Price, LLA, Provencio, I, Skene, Debra and Brainard, GC (2013) Measuring and using light in the melanopsin age Trends in Neurosciences, 37 (1). pp. 1-9.

Klerman, EB, Wang, W, Duffy, JF, Dijk, Derk-Jan, Czeisler, CA and Kronauer, RE (2013) Survival analysis indicates that age-related decline in sleep continuity occurs exclusively during NREM sleep Neurobiology of Aging, 34 (1). pp. 309-318.

Vandewalle, G., Collignon, O., Hull, J.T., Daneault, V., Albouy, G., Lepore, F., Phillips, C., Doyon, J., Czeisler, C.A., Dumont, M., Lockley, S.W. and Carrier, J. (2013) Blue light stimulates cognitive brain activity in visually blind individuals Journal of Cognitive Neuroscience, 25 (12). pp. 2072-2085.

Crowley, K.E., Rajaratnam, S.M.W., Shea, S.A., Epstein, L.J., Czeisler, C.A. and Lockley, S.W. (2013) Evaluation of a single-channel nasal pressure device to assess obstructive sleep apnea risk in laboratory and home environments Journal of Clinical Sleep Medicine, 9 (2). pp. 109-116.

Rüger, M., St Hilaire, M.A., Brainard, G.C., Khalsa, S.-B.S., Kronauer, R.E., Czeisler, C.A. and Lockley, S.W. (2013) Human phase response curve to a single 6.5 h pulse of short-wavelength light Journal of Physiology, 591 (1). pp. 353-363.

Shekleton, J.A., Rajaratnam, S.M.W., Gooley, J.J., Van Reen, E., Czeisler, C.A. and Lockley, S.W. (2013) Improved neurobehavioral performance during the wake maintenance zone Journal of Clinical Sleep Medicine, 9 (4). pp. 353-362.

Sigurdardottir, L.G., Valdimarsdottir, U.A., Mucci, L.A., Fall, K., Rider, J.R., Schernhammer, E., Czeisler, C.A., Launer, L., Harris, T., Stampfer, M.J., Gudnason, V. and Lockley, S.W. (2013) Sleep disruption among older men and risk of prostate cancer Cancer Epidemiology Biomarkers and Prevention, 22 (5). pp. 872-879.

Chang, AM, Santhi, N, St Hilaire, M, Gronfier, C, Bradstreet, DS, Duffy, JF, Lockley, SW, Kronauer, RE and Czeisler, CA (2012) Human responses to bright light of different durations. J Physiol, 590 (Pt 13). pp. 3103-3112.

Dijk, DJ, Duffy, JF, Silva, EJ, Shanahan, TL, Boivin, DB and Czeisler, CA (2012) Amplitude reduction and phase shifts of melatonin, cortisol and other circadian rhythms after a gradual advance of sleep and light exposure in humans. PLoS One, 7 (2).

Anderson, C., Sullivan, J.P., Flynn-Evans, E.E., Cade, B.E., Czeisler, C.A. and Lockley, S.W. (2012) Deterioration of neurobehavioral performance in resident physicians during repeated exposure to extended duration work shifts Sleep, 35 (8). pp. 1137-1146.

St Hilaire, M.A., Gooley, J.J., Khalsa, S.B.S., Kronauer, R.E., Czeisler, C.A. and Lockley, S.W. (2012) Human phase response curve to a 1 h pulse of bright white light Journal of Physiology, 590 (13). pp. 3035-3045.

Chang, A.-M., Santhi, N., St Hilaire, M., Gronfier, C., Bradstreet, D.S., Duffy, J.F., Lockley, S.W., Kronauer, R.E. and Czeisler, C.A. (2012) Human responses to bright light of different durations Journal of Physiology, 590 (13). pp. 3103-3112.

Gooley, J.J., Mien, I.H., St. Hilaire, M.A., Yeo, S.-C., Chua, E.C.-P., van Reen, E., Hanley, C.J., Hull, J.T., Czeisler, C.A. and Lockley, S.W. (2012) Melanopsin and Rod-cone photoreceptors play different roles in mediating pupillary light responses during exposure to continuous light in humans Journal of Neuroscience, 32 (41). pp. 14242-14253.

Duffy, JF, Cain, SW, Chang, AM, Phillips, AJ, Münch, MY, Gronfier, C, Wyatt, JK, Dijk, DJ, Wright, KP and Czeisler, CA (2011) Quantification of Behavior Sackler Colloquium: Sex difference in the near-24-hour intrinsic period of the human circadian timing system. Proc Natl Acad Sci U S A.

Gooley, J.J., Chamberlain, K., Smith, K.A., Khalsa, S.B.S., Rajaratnam, S.M.W., Van Reen, E., Zeitzer, J.M., Czeisler, C.A. and Lockley, S.W. (2011) Exposure to room light before bedtime suppresses melatonin onset and shortens melatonin duration in humans Journal of Clinical Endocrinology and Metabolism, 96 (3). E463-E472.

Rajaratnam, S.M.W., Barger, L.K., Lockley, S.W., Shea, S.A., Wang, W., Landrigan, C.P., O'Brien, C.S., Qadri, S., Sullivan, J.P., Cade, B.E., Epstein, L.J., White, D.P. and Czeisler, C.A. (2011) Sleep disorders, health, and safety in police officers JAMA - Journal of the American Medical Association, 306 (23). pp. 2567-2578.

Cain, SW, Dennison, CF, Zeitzer, JM, Guzik, AM, Khalsa, SB, Santhi, N, Schoen, MW, Czeisler, CA and Duffy, JF (2010) Sex differences in phase angle of entrainment and melatonin amplitude in humans. J Biol Rhythms, 25 (4). pp. 288-296.

Cohen, DA, Wang, W, Wyatt, JK, Kronauer, RE, Dijk, D-J, Czeisler, CA and Klerman, EB (2010) Uncovering Residual Effects of Chronic Sleep Loss on Human Performance SCIENCE TRANSLATIONAL MEDICINE, 2 (14), ARTN 1.

Jung, C.M., Khalsa, S.B.S., Scheer, F.A.J.L., Cajochen, C., Lockley, S.W., Czeisler, C.A. and Wright Jr., K.P. (2010) Acute effects of bright light exposure on cortisol levels Journal of Biological Rhythms, 25 (3). pp. 208-216.

Gordon, J.A., Alexander, E.K., Lockley, S.W., Flynn-Evans, E., Venkatan, S.K., Landrigan, C.P. and Czeisler, C.A. (2010) Does simulator-based clinical performance correlate with actual hospital behavior? the effect of extended work hours on patient care provided by medical interns Academic Medicine, 85 (10).

Gooley, J.J., Rajaratnam, S.M.W., Brainard, G.C., Kronauer, R.E., Czeisler, C.A. and Lockley, S.W. (2010) Spectral responses of the human circadian system depend on the irradiance and duration of exposure to light Science Translational Medicine, 2 (31).

Aeschbach, D, Lockyer, BJ, Dijk, D-J, Lockley, SW, Nuwayser, ES, Nichols, LD and Czeisler, CA (2009) Use of Transdermal Melatonin Delivery to Improve Sleep Maintenance During Daytime CLINICAL PHARMACOLOGY & THERAPEUTICS, 86 (4). pp. 378-382.

Cappuccio, F.P., Bakewell, A., Taggart, F.M., Ward, G., Ji, C., Sullivan, J.P., Edmunds, M., Pounder, R., Landrigan, C.P., Lockley, S.W., Peile, E., Bennett-Jones, D., Pohl, J., Short, A., Miller, M.A., Kamdala, N.-B., Kidd, J., Cooper, D., Lowe, A. and Czeisler, C.A. (2009) Implementing a 48 h EWTD-compliant rota for junior doctors in the UK does not compromise patients' safety: Assessor-blind pilot comparison QJM, 102 (4). pp. 271-282.

Aeschbach, D., Lockyer, B.J., Dijk, D.-J., Lockley, S.W., Nuwayser, E.S., Nichols, L.D. and Czeisler, C.A. (2009) Use of transdermal melatonin delivery to improve sleep maintenance during daytime Clinical Pharmacology and Therapeutics, 86 (4). pp. 378-382.

Santhi, N, Aeschbach, D, Horowitz, TS and Czeisler, CA (2008) The impact of sleep timing and bright light exposure on attentional impairment during night work JOURNAL OF BIOLOGICAL RHYTHMS, 23 (4). pp. 341-352.

Santhi, N, Horowitz, TS, Duffy, JF and Czeisler, CA (2007) Acute Sleep Deprivation and Circadian Misalignment Associated with Transition onto the First Night of Work Impairs Visual Selective Attention PLOS ONE, 2 (11), ARTN e1233.

Zeitzer, JM, Duffy, JF, Lockley, SW, Dijk, D-J and Czeisler, CA (2007) Plasma melatonin rhythms in young and older humans during sleep, sleep deprivation, and wake SLEEP, 30 (11). pp. 1437-1443.

Landrigan, C.P., Czeisler, C.A., Barger, L.K., Ayas, N.T., Rothschild, J.M. and Lockley, S.W. (2007) Effective implementation of work-hour limits and systemic improvements Joint Commission Journal on Quality and Patient Safety, 33 (11 SUP). pp. 19-29.

Lockley, S.W., Barger, L.K., Ayas, N.T., Rothschild, J.M., Czeisler, C.A. and Landrigan, C.P. (2007) Effects of health care provider work hours and sleep deprivation on safety and performance Joint Commission Journal on Quality and Patient Safety, 33 (11 SUP). pp. 7-18.

Zeitzer, J.M., Duffy, J.F., Lockley, S.W., Dijk, D.-J. and Czeisler, C.A. (2007) Plasma melatonin rhythms in young and older humans during sleep, sleep deprivation, and wake Sleep, 30 (11). pp. 1437-1443.

Zaidi, F.H., Hull, J.T., Peirson, StuartN., Wulff, K., Aeschbach, D., Gooley, J.J., Brainard, GeorgeC., Gregory-Evans, K., Rizzo III, JosephF., Czeisler, C.A., Foster, RussellG., Moseley, M.J. and Lockley, S.W. (2007) Short-Wavelength Light Sensitivity of Circadian, Pupillary, and Visual Awareness in Humans Lacking an Outer Retina Current Biology, 17 (24). pp. 2122-2128.

Wyatt, JK, Dijk, DJ, Ritz-De Cecco, A, Ronda, JM and Czeisler, CA (2006) Sleep-facilitating effect of exogenous melatonin in healthy young men and women is circadian-phase dependent SLEEP, 29 (5). pp. 609-618.

Lockley, S.W., Evans, E.E., Scheer, F.A.J.L., Brainard, G.C., Czeisler, C.A. and Aeschbach, D. (2006) Short-wavelength sensitivity for the direct effects of light on alertness, vigilance, and the waking electroencephalogram in humans Sleep, 29 (2). pp. 161-168.

Lockley, S.W., Landrigan, C.P., Barger, L.K. and Czeisler, C.A. (2006) When policy meets physiology: The challenge of reducing resident work hours Clinical Orthopaedics and Related Research (449). pp. 116-127.

Santhi, N, Duffy, JF, Horowitz, TS and Czeisler, CA (2005) Scheduling of sleep/darkness affects the circadian phase of night shift workers (vol 384, pg 316, 2005) NEUROSCIENCE LETTERS, 390 (3). p. 187.

Santhi, N, Duffy, JF, Horowitz, TS and Czeisler, CA (2005) Scheduling of sleep/darkness affects the circadian phase of night shift workers NEUROSCIENCE LETTERS, 384 (3). pp. 316-320.

Rothschild, J.M., Landrigan, C.P., Cronin, J.W., Kaushal, R., Lockley, S.W., Burdick, E., Stone, P.H., Lilly, C.M., Katz, J.T., Czeisler, C.A. and Bates, D.W. (2005) The Critical Care Safety Study: The incidence and nature of adverse events and serious medical errors in intensive care Critical Care Medicine, 33 (8). pp. 1694-1700.

Landrigan, C.P., Lockley, S.W., Czeisler, C.A., Milbrandt, E.B., Sarani, B. and Alarcon, L.H. (2005) Effect of intern's consecutive work hours on safety, medical education and professionalism [1] (multiple letters) Critical Care, 9 (5). pp. 528-530.

Pennell, N.A., Liu, J.F., Mazzini, M.J., Harnik, I.G., Fessler, H.E., Brotman, D.J., Dwyer, J.P., Cohen, M.D., Evans, A.T., Landrigan, C.P., Lockley, S.W. and Czeisler, C.A. (2005) Interns' work hours [2] (multiple letters) New England Journal of Medicine, 352 (7). pp. 726-728.

Wyatt, JK, Cajochen, C, Ritz-De Cecco, A, Czeisler, CA and Dijk, DJ (2004) Low-dose repeated caffeine administration for circadian-phase-dependent performance degradation during extended wakefulness SLEEP, 27 (3). pp. 374-381.

Lockley, S.W., Cronin, J.W., Evans, E.E., Cade, B.E., Lee, C.J., Landrigan, C.P., Rothschild, J.M., Katz, J.T., Lilly, C.M., Stone, P.H., Aeschbach, D. and Czeisler, C.A. (2004) Effect of reducing interns' weekly work hours on sleep and attentional failures New England Journal of Medicine, 351 (18). 1829-1837+1922.

Landrigan, C.P., Rothschild, J.M., Cronin, J.W., Kaushal, R., Burdick, E., Katz, J.T., Lilly, C.M., Stone, P.H., Lockley, S.W., Bates, D.W. and Czeisler, C.A. (2004) Effect of reducing interns' work hours on serious medical errors in intensive care units New England Journal of Medicine, 351 (18). pp. 1838-1848.

Lockley, S.W., Brainard, G.C. and Czeisler, C.A. (2003) High sensitivity of the human circadian melatonin rhythm to resetting by short wavelength light Journal of Clinical Endocrinology and Metabolism, 88 (9). pp. 4502-4505.

Wyatt, JK, Dijk, DJ and Czeisler, CA (2002) Negative effects of wake duration, circadian phase, and caffeine administration on self-assessment SLEEP, 25. A425-A426.

Khalsa, SBS, Conroy, DA, Duffy, JF, Czeisler, CA and Dijk, DJ (2002) Sleep- and circadian-dependent modulation of REM density JOURNAL OF SLEEP RESEARCH, 11 (1). pp. 53-59.

Duffy, JF, Zeitzer, JM, Rimmer, DW, Klerman, EB, Dijk, DJ and Czeisler, CA (2002) Peak of circadian melatonin rhythm occurs later within the sleep of older subjects AMERICAN JOURNAL OF PHYSIOLOGY-ENDOCRINOLOGY AND METABOLISM, 282 (2). E297-E303.

Cajochen, C, Wyatt, JK, Czeisler, CA and Dijk, DJ (2002) Separation of circadian and wake duration-dependent modulation of EEG activation during wakefulness NEUROSCIENCE, 114 (4), PII S0306-. pp. 1047-1060.

Lewis, C., Strub, W.M., Czeisler, C.A., Lockley, S.W., Landrigan, C.P., Katz, J.T., Barger, L.K., Ayas, N.T., Rothschild, J.M., Kaushal, R., Stone, P.H. and Bates, D.W. (2002) Current resident work hours: Too many or not enough? Journal of the American Medical Association, 287 (14). pp. 1802-1803.

Wright, KP, Hughes, RJ, Kronauer, RE, Dijk, DJ and Czeisler, CA (2001) Intrinsic near-24-h pacemaker period determines limits of circadian entrainment to a weak synchronizer in humans PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 98 (24). pp. 14027-14032.

Dijk, DJ, Neri, DF, Wyatt, JK, Ronda, JM, Riel, E, Cecco, ARD, Hughes, RJ, Elliott, AR, Prisk, GK, West, JB and Czeisler, CA (2001) Sleep, performance, circadian rhythms, and light-dark cycles during two space shuttle flights AMERICAN JOURNAL OF PHYSIOLOGY-REGULATORY INTEGRATIVE AND COMPARATIVE PHYSIOLOGY, 281 (5). R1647-R1664.

Dijk, DJ, Duffy, JF and Czeisler, CA (2001) Age-related increase in awakenings: Impaired consolidation of NonREM sleep at all circadian phases SLEEP, 24 (5). pp. 565-577.

Elliott, AR, Shea, SA, Dijk, DJ, Wyatt, JK, Riel, E, Neri, DF, Czeisler, CA, West, JB and Prisk, GK (2001) Microgravity reduces sleep-disordered breathing in humans AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE, 164 (3). pp. 478-485.

Duffy, JF, Winkelman, JW, Riel, E, Dijk, DJ and Czeisler, CA (2001) Circadian modulation of PLMS SLEEP, 24. A100-A101.

Klerman, EB, Duffy, JF, Dijk, DJ and Czeisler, CA (2001) Circadian phase resetting in older people by ocular bright light exposure JOURNAL OF INVESTIGATIVE MEDICINE, 49 (1). pp. 30-40.

Cajochen, C, Zeitzer, JM, Czeisler, CA and Dijk, DJ (2000) Dose-response relationship for light intensity and ocular and electroencephalographic correlates of human alertness BEHAVIOURAL BRAIN RESEARCH, 115 (1). pp. 75-83.

Zeitzer, JM, Duffy, JF, Klerman, EB, Shanahan, TL, Dijk, DJ and Czeisler, CA (2000) Plasma melatonin concentrations decline with age? Reply AMERICAN JOURNAL OF MEDICINE, 109 (4). p. 345.

Zeitzer, JM, Dijk, DJ, Kronauer, RE, Brown, EN and Czeisler, CA (2000) Sensitivity of the human circadian pacemaker to nocturnal light: melatonin phase resetting and suppression JOURNAL OF PHYSIOLOGY-LONDON, 526 (3). pp. 695-702.

Czeisler, CA, Dijk, DJ, Kronauer, RE, Brown, EN, Duffy, JF, Allan, JS, Shanahan, TL, Rimmer, DW, Ronda, JM, Mitchell, RF, Silva, EJ and Emens, JS (2000) Is there an intrinsic period of the circadian clock? Response SCIENCE, 288 (5469). pp. 1174-1175.

Dijk, DJ, Duffy, JF and Czeisler, CA (2000) Contribution of circadian physiology and sleep homeostasis to age-related changes in human sleep CHRONOBIOLOGY INTERNATIONAL, 17 (3). pp. 285-311.

Dijk, DJ, Jewett, ME, Czeisler, CA and Kronauer, RE (1999) Reply to technical note: Nonlinear interactions between circadian and homeostatic processes: Models or metrics? JOURNAL OF BIOLOGICAL RHYTHMS, 14 (6). pp. 604-605.

Zeitzer, JM, Daniels, JE, Duffy, JF, Klerman, EB, Shanahan, TL, Dijk, DJ and Czeisler, CA (1999) Do plasma melatonin concentrations decline with age? AMERICAN JOURNAL OF MEDICINE, 107 (5). pp. 432-436.

Wyatt, JK, Ritz-De Cecco, A, Czeisler, CA and Dijk, DJ (1999) Circadian temperature and melatonin rhythms, sleep, and neurobehavioral function in humans living on a 20-h day AMERICAN JOURNAL OF PHYSIOLOGY-REGULATORY INTEGRATIVE AND COMPARATIVE PHYSIOLOGY, 277 (4). R1152-R1163.

Cajochen, C, Khalsa, SBS, Wyatt, JK, Czeisler, CA and Dijk, DJ (1999) EEG and ocular correlates of circadian melatonin phase and human performance decrements during sleep loss AMERICAN JOURNAL OF PHYSIOLOGY-REGULATORY INTEGRATIVE AND COMPARATIVE PHYSIOLOGY, 277 (3). R640-R649.

Czeisler, CA, Duffy, JF, Shanahan, TL, Brown, EN, Mitchell, JF, Rimmer, DW, Ronda, JM, Silva, EJ, Allan, JS, Emens, JS, Dijk, DJ and Kronauer, RE (1999) Stability, precision, and near-24-hour period of the human circadian pacemaker SCIENCE, 284 (5423). pp. 2177-2181.

Kelly, TL, Neri, DF, Grill, JT, Ryman, D, Hunt, PD, Dijk, DJ, Shanahan, TL and Czeisler, CA (1999) Nonentrained circadian rhythms of melatonin in submariners scheduled to an 18-hour day JOURNAL OF BIOLOGICAL RHYTHMS, 14 (3). pp. 190-196.

Dijk, DJ, Duffy, JF, Riel, E, Shanahan, TL and Czeisler, CA (1999) Ageing and the circadian and homeostatic regulation of human sleep during forced desynchrony of rest, melatonin and temperature rhythms JOURNAL OF PHYSIOLOGY-LONDON, 516 (2). pp. 611-627.

Duffy, JF, Dijk, DJ, Hall, EF and Czeisler, CA (1999) Relationship of endogenous circadian melatonin and temperature rhythms to self-reported preference for morning or evening activity in young and older people JOURNAL OF INVESTIGATIVE MEDICINE, 47 (3). pp. 141-150.

Jewett, ME, Wyatt, JK, Ritz-De Cecco, A, Khalsa, SB, Dijk, DJ and Czeisler, CA (1999) Time course of sleep inertia dissipation in human performance and alertness JOURNAL OF SLEEP RESEARCH, 8 (1). pp. 1-8.

Wei, HG, Riel, E, Czeisler, CA and Dijk, DJ (1999) Attenuated amplitude of circadian and sleep-dependent modulation of electroencephalographic sleep spindle characteristics in elderly human subjects NEUROSCIENCE LETTERS, 260 (1). pp. 29-32.

Klerman, EB, Rimmer, DW, Dijk, DJ, Kronauer, RE, Rizzo, JF and Czeisler, CA (1998) Erratum: Nonphotic entrainment of the human circadian pacemaker (American Journal of Physiology (R991-R996)) American Journal of Physiology - Renal Physiology, 275 (6 44-6).

Klerman, EB, Rimmer, DW, Dijk, DJ, Kronauer, RE, Rizzo, JF and Czeisler, CA (1998) Nonphotic entrainment of the human circadian pacemaker (vol 43, pg R991, 1998) AMERICAN JOURNAL OF PHYSIOLOGY-REGULATORY INTEGRATIVE AND COMPARATIVE PHYSIOLOGY, 275 (6).

Duffy, JF, Dijk, DJ, Klerman, EB and Czeisler, CA (1998) Later endogenous circadian temperature nadir relative to an earlier wake time in older people AMERICAN JOURNAL OF PHYSIOLOGY-REGULATORY INTEGRATIVE AND COMPARATIVE PHYSIOLOGY, 275 (5). R1478-R1487.

Duffy, JF, Dijk, DJ, Klerman, EB and Czeisler, CA (1998) Later endogenous circadian temperature nadir relative to an earlier wake time in older people. Am J Physiol, 275 (5 Pt 2). R1478-R1487.

Klerman, EB, Rimmer, DW, Dijk, DJ, Kronauer, RE, Rizzo, JF and Czeisler, CA (1998) Nonphotic entrainment of the human circadian pacemaker AMERICAN JOURNAL OF PHYSIOLOGY-REGULATORY INTEGRATIVE AND COMPARATIVE PHYSIOLOGY, 274 (4). R991-R996.

Klerman, EB, Rimmer, DW, Dijk, DJ, Kronauer, RE, Rizzo, JF and Czeisler, CA (1998) Nonphotic entrainment of the human circadian pacemaker. Am J Physiol, 274 (4 Pt 2). R991-R996.

Klerman, EB, Rimmer, DW, Dijk, DJ, Kronauer, RE, Rizzo, JF and Czeisler, CA (1998) Erratum: Nonphotic entrainment of the human circadian pacemaker (American Journal of Physiology - Regulatory and Integrative Physiology (April 1998) 274:43 (R991-R996)) American Journal of Physiology - Regulatory Integrative and Comparative Physiology, 275 (2 44-2).

Dijk, DJ, Shanahan, TL, Duffy, JF, Ronda, JM and Czeisler, CA (1997) Variation of electroencephalographic activity during non-rapid eye movement and rapid eye movement sleep with phase of circadian melatonin rhythm in humans JOURNAL OF PHYSIOLOGY-LONDON, 505 (3). pp. 851-858.

Boivin, DB, Czeisler, CA, Dijk, DJ, Duffy, JF, Folkard, S, Minors, DS, Totterdell, P and Waterhouse, JM (1997) Complex interaction of the sleep-wake cycle and circadian phase modulates mood in healthy subjects ARCHIVES OF GENERAL PSYCHIATRY, 54 (2). pp. 145-152.

Klerman, EB, Dijk, DJ, Kronauer, RE and Czeisler, CA (1996) Simulations of light effects on the human circadian pacemaker: Implications for assessment of intrinsic period AMERICAN JOURNAL OF PHYSIOLOGY-REGULATORY INTEGRATIVE AND COMPARATIVE PHYSIOLOGY, 270 (1). R271-R282.

Klerman, EB, Dijk, DJ, Kronauer, RE and Czeisler, CA (1996) Simulations of light effects on the human circadian pacemaker: implications for assessment of intrinsic period. Am J Physiol, 270 (1 Pt 2). R271-R282.

Czeisler, CA and Dijk, DJ (1995) Use of bright light to treat maladaptation to night shift work and circadian rhythm sleep disorders JOURNAL OF SLEEP RESEARCH, 4. pp. 70-73.

Dijk, D-J and Czeisler, CA (1994) Body temperature is elevated during the rebound of slow-wave sleep following 40-h of sleep deprivation on a constant routine (J. Sleep Res., Volume 2, Number 3, pp. 117-120, September 1993) Journal of Sleep Research, 3 (1). p. 64.

Dijk, DJ, Duffy, JF and Czeisler, CA (1992) Circadian and sleep/wake dependent aspects of subjective alertness and cognitive performance. J Sleep Res, 1 (2). pp. 112-117.

Johnson, MP, Duffy, JF, Dijk, DJ, Ronda, JM, Dyal, CM and Czeisler, CA (1992) Short-term memory, alertness and performance: a reappraisal of their relationship to body temperature. J Sleep Res, 1 (1). pp. 24-29.

Conference or Workshop Item

Duffy, JF, Cain, SW, Chang, A, Phillips, AJ, Munch, MY, Gronfier, C, Wyatt, JK, Dijk, D, Wright, KP and Czeisler, CA (2011) SEX DIFFERENCE IN INTRINSIC CIRCADIAN PERIOD IN HUMANS In: 25th Anniversary Meeting of the Associated-Professional-Sleep-Societies (APSS), 2011-06-11 - 2011-06-15, Minneapolis, MN.

Chang, A, Santhi, N, Bradstreet, DS, Lockley, SW, Duffy, JF, Kronauer, RE and Czeisler, CA (2011) DURATION RESPONSE CURVE TO BRIGHT LIGHT IN HUMANS

Klerman, E, Wang, W, Kronauer, RE, Duffy, JF, Czeisler, CA and Dijk, D (2009) AGE-RELATED CHANGES IN SLEEP MAINTENANCE QUANTIFIED USING SURVIVAL ANALYSES OF SLEEP AND WAKE BOUTS In: 23rd Annual Meeting of the Associated-Professional-Sleep-Societies, 2009-06-06 - 2009-06-11, Seattle, WA.

Santhi, N, Duffy, JF and Czeisler, CA (2009) ATTENTIONAL FAILURES ARE MORE PRONOUNCED IN THE LATTER HALF OF A WAKE EPISODE FOLLOWING AN INVERSION OF THE SLEEP-WAKE SCHEDULE In: 23rd Annual Meeting of the Associated-Professional-Sleep-Societies, 2009-06-06 - 2009-06-11, Seattle, WA.

Cohen, DA, Wyatt, JK, Wang, W, Kronauer, RE, Dijk, D, Czeisler, CA and Klerman, EB (2009) VIGILANCE PERFORMANCE IS DETERMINED BY AN INTERACTION AMONG ACUTE HOMEOSTATIC, CHRONIC HOMEOSTATIC, AND CIRCADIAN MECHANISMS In: 23rd Annual Meeting of the Associated-Professional-Sleep-Societies, 2009-06-06 - 2009-06-11, Seattle, WA.

Kronauer, RE, Wang, W, Duffy, JF, Czeisler, CA, Wyatt, JK, Dijk, D and Klerman, EB (2009) SURVIVAL ANALYSES OF SLEEP AND WAKE BOUTS REVEAL DIFFERENTIAL REGULATION OF THE MAINTENANCE OF NREM AND REM SLEEP In: 23rd Annual Meeting of the Associated-Professional-Sleep-Scoieties, 2009-06-11 - 2009-06-11, Seattle, WA.

Santhi, N, Horowitz, TS and Czeisler, CA (2008) Reducing nighttime attentional failures with bright light exposure: timing it right In: 19th Congress of the European-Sleep-Research-Society, 2008-09-09 - 2008-09-13, Glasgow, SCOTLAND.

Dean, DA, Wyatt, JK, Dijk, D, Czeisler, CA and Klerman, EB (2008) Quantifying practice effects within groups and individuals: Examples from a month long forced desynchrony protocol In: 22nd Annual Meeting of the Associated-Professional-Sleep-Societies, 2008-06-07 - 2008-06-12, Baltimore, MD.

Santhi, N, Horowitz, T, Wolfe, J and Czeisler, C (2007) Sleep deprivation impairs search for rare targets In: 21st Annual Meeting of the Association-Professional-Sleep-Societies, 2007-06-09 - 2007-06-14, Minneapolis, MN.

Santhi, N, Duffy, JF, Gronfier, C, Lockley, SW and Czeisler, CA (2006) Moderate intensity room light can entrain the circadian pacemaker to a non-24-h day In: 18th Congress of the European-Sleep-Research-Society, 2006-09-12 - 2006-09-16, Innsbruck, AUSTRIA.

Aeschbach, D, Lockyer, BJ, Dijk, D, Lockley, SW, Nuwayser, ES, Nichols, LD and Czeisler, CA (2006) Approaching an endogenous melatonin secretion profile to improve daytime sleep by dermal melatonin delivery In: 20th Annual Meeting of the Associated-Professional-Sleep-Societies, 2006-06-17 - 2006-06-22, Salt Lake City, UT.

Santhi, N, Duffy, JF, Horowitz, TS and Czeisler, CA (2006) Moderate intensity light in combination with scheduled sleep facilitates adaptation to night work In: 20th Annual Meeting of the Associated-Professional-Sleep-Societies, 2006-06-17 - 2006-06-22, Salt Lake City, UT.

Santhi, N, Horowitz, TS and Czeisler, CA (2005) Night shift work impairs decision-making in visual search In: 19th Annual Meeting of the Associated-Professional-Sleep-Societies, 2005-06-18 - 2005-06-23, Denver, CO.

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