1997 …2023
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Research Output 1997 2019

1997

Effects of daily melatonin administration on circadian activity rhythms in the diurnal Indian palm squirrel (Funambulus penna)

Rajaratnam, S. M. W. & Redman, J. R., 1997, In : Journal of Biological Rhythms. p. 339 - 347 9 p.

Research output: Contribution to journalArticleResearchpeer-review

Sex differences in the circadian response to light in the diurnal Indian palm squirrel, Funambulus pennanti

Redman, J. R. & Rajaratnam, S. M. W., 1997, p. 1322 - 1322. 1 p.

Research output: Contribution to conferenceAbstractOther

1998

Entrainment of activity rhythms to temperature cycles in diurnal palm squirrels

Rajaratnam, S. M. W. & Redman, J. R., 1998, In : Physiology and Behavior. p. 271 - 277 7 p.

Research output: Contribution to journalArticleResearchpeer-review

The Indian palm squirrel: An animal model for human sleep-rhythm disorders

Rajaratnam, S. M. W. & Redman, J. R., 1998, p. 113 - 113. 1 p.

Research output: Contribution to conferenceAbstractOther

1999

Light-dark entrainment of circadian activity rhythms of the diurnal Indian palm squirrel (Funambulus pennanti)

Rajaratnam, S. M. W. & Redman, J. R., 1999, In : Biological Rhythm Research. p. 445 - 466 22 p.

Research output: Contribution to journalArticleResearchpeer-review

Social contact synchronizes free-running activity rhythms of diurnam palm squirrels

Rajaratnam, S. M. W. & Redman, J. R., 1999, In : Physiology and Behavior. p. 21 - 26 6 p.

Research output: Contribution to journalArticleResearchpeer-review

2000

Intoxication and criminal behaviour

Rajaratnam, S. M. W., Redman, J. R. & Lenne, M. G., 2000, In : Psychiatry Psychology and Law. p. 59 - 69 11 p.

Research output: Contribution to journalArticleResearchpeer-review

2001

Circadian locomotor activity rhythms of the diurnal indian palm squirrel in constant light

Rajaratnam, S. M. W. & Redman, J. R., 2001, In : Chronobiology International. 18, 1, p. 47 - 60 14 p.

Research output: Contribution to journalArticleResearchpeer-review

Health in a 24-h society

Rajaratnam, S. M. W. & Arendt, J., 2001, In : The Lancet. 358, p. 999 - 1005 7 p.

Research output: Contribution to journalArticleResearchpeer-review

2002

Diversity in the Circadian Response to Melatonin in Mammals

Rajaratnam, S. M. W. & Redman, J. R., 2002, Biological Rhythms. Kumar, V. (ed.). India: Narosa Publishing House, p. 224 - 231 8 p.

Research output: Chapter in Book/Report/Conference proceedingChapter (Book)Researchpeer-review

2003

Daytime exposure to bright light, as compared to dim light, decreases sleepiness and improves psychomotor vigilance performance

Phipps-Nelson, B-J., Redman, J. R., Dijk, D. J. & Rajaratnam, S. M. W., 2003, In : Sleep. 26, 6, p. 695 - 700 6 p.

Research output: Contribution to journalArticleResearchpeer-review

Melatonin phase-shifts human circadian rhythms with no evidence of changes in the duration of endogenous melatonin secretion or the 24-hour production of reproductive hormones

Rajaratnam, S. M. W., Dijk, D-J., Middleton, B., Stone, B. M. & Arendt, J., 2003, In : Journal of Clinical Endocrinology and Metabolism. 88, 9, p. 4303 - 4309 7 p.

Research output: Contribution to journalArticleResearchpeer-review

2004

Lessons about sleepiness and driving from the Selby Rail Disaster Case: R vs Gary Neil Hart

Rajaratnam, S. M. W. & Jones, C. B., 2004, In : Chronobiology International. 21, 6, p. 1 - 5 6 p.

Research output: Contribution to journalArticleResearchpeer-review

Melatonin advances the circadian timing of EEG sleep and directly facilitates sleep without altering its duration in extended sleep opportunities in humans

Rajaratnam, S. M. W., Middleton, B., Stone, B. M., Arendt, J. & Dijk, D-J., 2004, In : The Journal of Physiology. 561, 1, p. 339 - 351 13 p.

Research output: Contribution to journalArticleResearchpeer-review

The effects of a nap opportunity in quiet and noisy environments on driving performance

Lenne, M. G., Dwyer, F., Triggs, T. J., Rajaratnam, S. M. W. & Redman, J. R., 2004, In : Chronobiology International. 21, 6, p. 991 - 1001 11 p.

Research output: Contribution to journalArticleResearchpeer-review

2005

Fatigue and the criminal law

Jones, C. B., Dorrian, J. & Rajaratnam, S. M. W., 2005, In : Industrial Health. 43, 1, p. 63 - 70 8 p.

Research output: Contribution to journalArticleResearchpeer-review

The effect of traumatic brain injury on the timing of sleep

Steele, D. L., Rajaratnam, S. M. W., Redman, J. R. & Ponsford, J. L., 2005, In : Chronobiology International. 22, 1, p. 89 - 105 16 p.

Research output: Contribution to journalArticleResearchpeer-review

Working hours regulations and fatigue in transportation: A comparative analysis

Jones, C. B., Dorrian, J., Rajaratnam, S. M. W. & Dawson, D., 2005, In : Safety Science. 43, 4, p. 225 - 252 28 p.

Research output: Contribution to journalArticleResearchpeer-review

2006

Chronic partial sleep loss increases the facilitatory role of a masked prime in a word recognition task

Swann, C. E., Yelland, G. W., Redman, J. R. & Rajaratnam, S. M. W., 2006, In : Journal of Sleep Research. 15, p. 23 - 29 7 p.

Research output: Contribution to journalArticleResearchpeer-review

Self-reported changes to nighttime sleep after traumatic brain injury

Purcell, D. L., Ponsford, J. L., Rajaratnam, S. M. W. & Redman, J. R., 2006, In : Archives of Physical Medicine and Rehabilitation. 87, 2, p. 278 - 285 8 p.

Research output: Contribution to journalArticleResearchpeer-review

2007

Robust circadian rhythm in heart rate and its variability: influence of exogenous melatonin and photoperiod

Vandewalle, G., Middleton, B., Rajaratnam, S. M. W., Stone, B. M., Thorleifsdottir, B., Arendt, J. & Dijk, D-J., 2007, In : Journal of Sleep Research. 16, p. 148 - 155 8 p.

Research output: Contribution to journalArticleResearchpeer-review

2008

Introduction: Aging and the multifaceted influences on adaptation to working time

Bohle, P., Di Milia, L., Fletcher, A. & Rajaratnam, S. M. W., 2008, In : Chronobiology International. 25, 2, p. 155 - 164 10 p.

Research output: Contribution to journalArticleResearchpeer-review

Melatonin and its agonists: An update

Arendt, J. & Rajaratnam, S. M. W., 2008, In : British Journal of Psychiatry. 193, 4, p. 267 - 269 3 p.

Research output: Contribution to journalArticleResearchpeer-review

Poor sleep quality and changes in objectively recorded sleep after traumatic brain injury: A preliminary study

Parcell, D. L., Ponsford, J. L., Redman, J. R. & Rajaratnam, S. M. W., 2008, In : Archives of Physical Medicine and Rehabilitation. 89, 5, p. 843 - 850 8 p.

Research output: Contribution to journalArticleResearchpeer-review

2009

Blue light exposure reduces objective measures of sleepiness during prolonged nighttime performance testing

Phipps-Nelson, B-J., Redman, J. R., Schlangen, L. J. & Rajaratnam, S. M. W., 2009, In : Chronobiology International. 26, 5, p. 891 - 912 22 p.

Research output: Contribution to journalArticleResearchpeer-review

Melatonin agonist tasimelteon (VEC-162) for transient insomnia after sleep-time shift: Two randomized controlled multicentre trials

Rajaratnam, S. M. W., Polymeropoulos, M. H., Fisher, D. M., Roth, T., Scott, C., Birznieks, G. & Klerman, E. B., Sep 2009, In : Obstetrical and Gynecological Survey. 64, 9, p. 604-605 2 p.

Research output: Contribution to journalComment / DebateOtherpeer-review

Melatonin agonist tasimelteon (VEC-162) for transient insomnia after sleep-time shift: Two randomised controlled multicentre trials

Rajaratnam, S. M. W., Polymeropoulos, M. H., Fisher, D. M., Roth, T., Scott, C., Birznieks, G. & Klerman, E. B., 2009, In : The Lancet. 373, p. 482 - 491 9 p.

Research output: Contribution to journalArticleResearchpeer-review

Melatonin and melatonin analogues

Rajaratnam, S. M. W., Cohen, D. & Rogers, N. L., 2009, In : Sleep Medicine Clinics. 4, 2, p. 179 - 193 15 p.

Research output: Contribution to journalArticleOther

Neurobehavioral, health, and safety consequences associated with shift work in safety-sensitive professions

Barger, L., Lockley, S. W., Rajaratnam, S. M. W. & Landrigan, C. P., 2009, In : Sleep. 9, 2, p. 155 - 164 10 p.

Research output: Contribution to journalArticleResearchpeer-review

2010

Acute MDMA administration alters the distribution and circadian rhythm of wheel running activity in the rat

Ogeil, R., Rajaratnam, S. M. W., Redman, J. & Broadbear, J., 2010, In : Brain Research. 1359, C, p. 128 - 136 9 p.

Research output: Contribution to journalArticleResearchpeer-review

Lay perceptions of responsibility and accountability for fatigue-related road crashes

Jones, C., Rajaratnam, S. M. W., Dorrian, J. & Dawson, D., 2010, In : Journal of the Australasian College of Road Safety. 21, 1, p. 30 - 35 6 p.

Research output: Contribution to journalArticleResearchpeer-review

Melatonin agonists and insomnia

Ferguson, S., Rajaratnam, S. M. W. & Dawson, D., 2010, In : Expert Review of Neurotherapeutics. 10, 2, p. 305 - 318 14 p.

Research output: Contribution to journalArticleResearchpeer-review

Ramelteon prior to a short evening nap impairs neurobehavioral performance for up to 12 hours after awakening

Cohen, D. A., Wang, W., Klerman, E. B. & Rajaratnam, S. M. W., 2010, In : Journal of Clinical Sleep Medicine. 6, 6, p. 565 - 571 7 p.

Research output: Contribution to journalArticleResearchpeer-review

Searching for the daytime impairments of primary insomnia

Shekleton, J., Rogers, N. & Rajaratnam, S. M. W., 2010, In : Sleep Medicine Reviews. 14, 1, p. 47 - 60 14 p.

Research output: Contribution to journalArticleResearchpeer-review

Sleep, law, and policy

Jones, C. B., Lee, C. J. & Rajaratnam, S. M. W., 2010, Sleep, Health and Society: From Aetiology to Public Health. Cappuccio, F. P., Miller, M. A. & Lockley, S. W. (eds.). Oxford, UK: Oxford University Press, p. 417-434 18 p.

Research output: Chapter in Book/Report/Conference proceedingChapter (Book)Other

Sleep disturbance and melatonin levels following traumatic brain injury

Shekleton, J., Parcell, D., Redman, J. R., Phipps-Nelson, J., Ponsford, J. & Rajaratnam, S. M. W., 2010, In : Neurology. 74, 21, p. 1732 - 1738 7 p.

Research output: Contribution to journalArticleResearchpeer-review

Spectral responses of the human circadian system depend on the irradiance and duration of exposure to light

Gooley, J., Rajaratnam, S. M. W., Brainard, G., Kronauer, R., Czeisler, C. & Lockley, S., 2010, In : Science Translational Medicine. 2, 31 (Art. No: 31ra33), p. 1 - 9 9 p.

Research output: Contribution to journalArticleResearchpeer-review

Timing of sleep and its relationship with the endogenous melatonin rhythm

Sletten, T., Vincenzi, S., Redman, J., Lockley, S. & Rajaratnam, S. M. W., 2010, In : Frontiers in Neurology. 1, Art. No: 137, p. 1 - 8 8 p.

Research output: Contribution to journalArticleResearchpeer-review

Assessing sleep disturbance in ecstasy users: A questionnaire study

Ogeil, R., Rajaratnam, S. M. W. & Broadbear, J., 2011, In : The Open Addiction Journal. 4, special issue, p. 32 - 33 2 p.

Research output: Contribution to journalArticleOtherpeer-review

Open Access

Ecstasy use and self-reported disturbances in sleep

Ogeil, R., Rajaratnam, S. M. W., Phillips, J., Redman, J. & Broadbear, J., 2011, In : Human Psychopharmacology. 26, 7, p. 508 - 516 9 p.

Research output: Contribution to journalArticleResearchpeer-review

Exposure to room light before bedtime surpresses melatonin onset and shortens melatonin duration in humans

Gooley, J., Chamberlain, K., Smith, K., Khalsa, S., Rajaratnam, S. M. W., Van Reen, E., Zeitzer, J., Czeisler, C. & Lockley, S., 2011, In : Journal of Clinical Endocrinology and Metabolism. 96, 3, p. E463 - E472 10 p.

Research output: Contribution to journalArticleResearchpeer-review

Increased mortality associated with after-hours and weekend admission to the intensive care unit: A retrospective analysis

Kevat, D. A. S., Davies, A. R., Cameron, P. A. & Rajaratnam, S. M. W., Jun 2011, In : Medical Journal of Australia. 194, 11, p. 616 1 p.

Research output: Contribution to journalLetterOtherpeer-review

Sleep disorders, health, and safety in police officers

Rajaratnam, S. M. W., Barger, L., Lockley, S., Shea, S., Wang, W., Landrigan, C., O'Brien, C., Qadri, S., Sullivan, J. P., Cade, B., Epstein, L., White, D. & Czeisler, C., 2011, In : JAMA. 306, 23, p. 2567 - 2578 12 p.

Research output: Contribution to journalArticleResearchpeer-review

Temporal profile of prolonged, night-time driving performance: Breaks from driving temporarily reduce time-on-task fatigue but not sleepiness

Phipps-Nelson, B., Redman, J. & Rajaratnam, S. M. W., 2011, In : Journal of Sleep Research. 20, 3, p. 404 - 415 12 p.

Research output: Contribution to journalArticleResearchpeer-review

2012

An examination of australian general practitioners' knowledge, attitudes and practices in relation to sleep disorders

Hassed, C. S., Antoniades, J., Jones, K. M., Rajaratnam, S. M. W., Kiropoulos, L. A., Naughton, M. T. & Piterman, L., 2012, In : Malaysian Family Physician. 7, 1, p. 16 - 23 8 p.

Research output: Contribution to journalArticleResearchpeer-review

Ecstasy and sleep disturbance: progress towards elucidating a role for the circadian system

Ogeil, R. P., Rajaratnam, S. M. W. & Broadbear, J. H., 2012, In : Sleep and Biological Rhythm. 10, 1, p. 3 - 13 11 p.

Research output: Contribution to journalArticleResearchpeer-review

Fatigue and sleep disturbance following traumatic brain injury - their nature, causes and potential treatments

Ponsford, J. L., Ziino, C. V., Parcell, D. L., Shekleton, J., Roper, M., Redman, J. R., Phipps-Nelson, B-J. & Rajaratnam, S. M. W., 2012, In : Journal of Head Trauma Rehabilitation. 27, 3, p. 224 - 233 10 p.

Research output: Contribution to journalArticleResearchpeer-review