Projects per year
Personal profile
Biography
Shantha is Professor of Sleep and Circadian Medicine, Head of the School of Psychological Sciences, and Deputy Director of the Turner Institute for Brain and Mental Health. He is Chair of the Sleep Health Foundation, and a Fellow of the Australian Academy of Health and Medical Sciences. He is Chair of the Monash Sleep Network.
His primary research interest is in the field of sleep and circadian rhythms, and its application to occupational and clinical settings.
Sleep is increasingly recognised as the third pillar of good health, along side diet and exercise. Poor sleep quality and sleep deficiency are linked to a number of serious health problems, including depression and cardiovascular disease, as well as impaired alertness and neurocognitive functioning, reduced productivity and increased accident risk.
Shantha's research program aims to investigate the role of the internal biological clock in the regulation of the sleep-wake cycle, and how disruption of the clock leads to sleep disorders and other physiological consequences (for example, in shift workers). His group is developing novel treatment approaches for sleep disorders that are caused by biological clock disruption. These include light and melatonin treatments. The group is also investigating the contribution of sleep disturbances and fatigue to mood disorders and impaired cognition in clinical populations.
Sleep loss and impaired alertness adversely affect occupational safety, health and productivity, and also road safety. About 20 percent of serious car crash injuries are associated with driver sleepiness. Shantha's research is examining innovative technologies to monitor alertness in occupational and transportations settings, and is developing and testing intervention strategies aimed at reducing the burden associated with impaired alertness in these contexts.
Sleep and ciradian health offer an opportunity to implement a preventive health approach that is grounded in neuroscience and strongly evidence based. This is based on the extensive evidenced that poor sleep and circadian health lead to other major adverse health and wellbeing outcomes, and interventions to improve sleep and circadian health are known to lead to improvements in overall health and wellbeing.
Community service
2020-present Iterim Research Director and bid coordinator, Well and Productive CRC
2020-present Chair, Sleep Health Foundation
2020-present Chair, Working Group for the International Association of Circadian Health Clinics
2016-2020 Board Member, Sleep Health Foundation
2013-2020 Program Leader, Alertness CRC
2011-2014 President, Australasian Sleep Association
2007-present Chair, Monash Sleep Network
Research interests
- The role of sleep and circadian health on workplace health, productivity and safety
- Development and evaluation of interventions for sleep and circadian disruption in occupational and clinical settings
- Role of the circadian clock in regulating mood and cognitive function
- Effects of light, melatonin and melatonin agonists on sleep and circadian rhythms
- Legal issues relating to sleep loss and sleepiness
Monash teaching commitment
2011-2014 Director of Undergraduate Programs, School of Psychology and Psychiatry
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
Education/Academic qualification
Law, LLB(Hons), MONASH UNIVERSITY
Award Date: 29 Mar 2000
Chronobiology, PhD, AN EXAMINATION OF THE CIRCADIAN SYSTEM OF THE DIURNAL INDIAN PALM SQUIRREL, FUNAMBULUS PENNANTI, MONASH UNIVERSITY
Award Date: 11 Mar 1998
Psychology, BSc(Hons), MONASH UNIVERSITY
Award Date: 20 Apr 1994
External positions
Associate Neuroscientist, Brigham and Women's Hospital Inc
1 Jul 2004 → …
Lecturer in Medicine (academic, part-time), Harvard Medical School
1 Jul 2004 → …
Research area keywords
- Circadian rhythms
- Workplace mental health
- Light
- Melatonin
- Shift work
- Sleep
- Sleep Loss
- Sleep disorders
- Sleepiness-related crashes
- Fatigue
- Mood Disorders
- Depression
- Cognitive Function
- Occupational Health and Safety
Collaborations and top research areas from the last five years
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Reaching out: A new pipeline for Australian mental health workforce training and development.
Maloney, S., Haines, T., Morphet, J., Najm, D., Harvey, P., Bullock, S., Lawrence, K., Wilson Rajaratnam, S., Shlonsky, A., Fossey, E., Kent, F., Brown, A., Petrakis, M., Bevilacqua, M. & Gullifer, J.
12/06/23 → 30/09/25
Project: Research
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ARC Training Centre for Optimal Ageing
Lim, Y. Y., Kulic, D., Grundy, J., Batstone, J., Olivier, P., Wilson Rajaratnam, S., Cornish, K., Anderson, C., Klein, B., Browning, C., Pase, M., Abdi, E., Robinson, N., McNaney, R., Srikanth, V., Hill, K., Flynn, D., Callisaya, M., Brusco, N., Carreno-Medrano, P., Cronin, J., Fripp, J., Kothari, N., Toms, M., Browne, E., Neilson, P., Orelowitz, J., Udagedara, I. B., De Chaumont Rambert, C., Haddock, R., Pitt, A., Pearman, A., Lethlean, G., Skye, S., Ong, A. & Cai, J.
Australian Research Council (ARC), Readiness Pty Ltd
25/05/23 → 25/05/28
Project: Research
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CSIRO Data61 Next Generation Graduates Programs: AI in Mental Health
McNaney, R., Olivier, P., Yap, M., Cai, J., Wu, L., Watterson, J., Haffari, R., Qu, L., Wilson Rajaratnam, S., Wang, T., Sharp, G., Alvarez-Jimenez, M., D'Alfonso, S. & Kostakos, V.
Monash University – Internal Department Contribution
5/04/23 → 31/12/27
Project: Research
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Zest – A personalised, digital intervention for sleep and wellbeing in Australian shift workers
Varma, P., Murray, J., Stone, J., Booker, L., Sletten, T., Bei, B., Postnova, S. D., King, K., McNaney, R., Wilson Rajaratnam, S., Walker-Bone, K., Phillips, A. & Howard, M. E.
1/02/23 → 31/01/26
Project: Research
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Association between burnout and adherence with mask usage and additional COVID-19 prevention behaviours: findings from a large-scale, demographically representative survey of US adults
Czeisler, M., Wolkow, A. P., Czeisler, C. A., Howard, M. E., Rajaratnam, S. M. W. & Lane, R. I., 1 Mar 2023, In: BMJ Open. 13, 3, 10 p., e066226.Research output: Contribution to journal › Article › Research › peer-review
Open Access -
Cognitive fitness modulates gender differences in sleep and mental health among competitive athletes under chronic stress
Mascaro, L., Drummond, S. P. A., Leota, J., Boardman, J. M., Hoffman, D., Rajaratnam, S. M. W., Aidman, E. & Facer-Childs, E. R., 2023, In: Frontiers in Physiology. 14, 11 p., 1118822.Research output: Contribution to journal › Article › Research › peer-review
Open Access -
European NCAP Driver State Monitoring Protocols: Prevalence of Distraction in Naturalistic Driving
Mulhall, M., Wilson, K., Yang, S., Kuo, J., Sletten, T., Anderson, C., Howard, M. E., Rajaratnam, S. M. W., Magee, M., Collins, A. L. & Lenne, M. G., 20 Aug 2023, (Accepted/In press) In: Human Factors. 13 p.Research output: Contribution to journal › Article › Research › peer-review
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Insomnia, Poor Sleep Quality, and Sleep Duration and Risk for COVID-19 Infection and Hospitalization
Quan, S. F., Weaver, M. D., Czeisler, M., Barger, L. K., Booker, L. A., Howard, M. E., Jackson, M. L., Lane, R. I., McDonald, C. F., Ridgers, A., Robbins, R., Varma, P., Wiley, J. F., Rajaratnam, S. M. W. & Czeisler, C. A., Aug 2023, In: American Journal of Medicine. 136, 8, p. 780-788.e5 14 p.Research output: Contribution to journal › Article › Research › peer-review
1 Citation (Scopus) -
Legal implications of circadian rhythm sleep-wake disorders
Lee, C. J. & Rajaratnam, S. M. W., Jan 2023, Encyclopedia of Sleep and Circadian Rhythms. Kushida, C. A. (ed.). 2nd ed. Amsterdam Netherlands: Academic Press, Vol. 3. p. 800-808 9 p.Research output: Chapter in Book/Report/Conference proceeding › Chapter (Book) › Other › peer-review
Prizes
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Dean’s Award for Excellence in Education (Teaching Innovation; School of Psychology Team)
Cornish, Kim (Recipient), McKenzie, Wendy (Recipient), Heinrich, Liesl (Recipient), Rickard, Nikki (Recipient), Anderson, Clare (Recipient), Cain, Sean (Recipient) & Wilson Rajaratnam, Shanthakumar (Recipient), 3 Jul 2013
Prize: Prize (including medals and awards)
Press/Media
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Paramedic Health and Wellbeing Research Unit (PHAWRU)
Kelly Bowles, Benjamin Meadley, Joanne Caldwell Odgers, Luke Perraton, Maxine Bonham, Brett Williams, Karen Smith, Shanthakumar Wilson Rajaratnam & Alexander Wolkow
21/02/19
1 item of Media coverage
Press/Media: Article/Feature
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CREATORS: 'Immersive Installation Explores Sleep Culture and Insomnia'
Matthew Bird, Marcus McMahon, Shanthakumar Rajaratnam, Sean Drummond, Caitlyn Parry, J David Franke & Phillip Adams
7/07/17
1 item of Media coverage
Press/Media: Review
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ART ALMANAC: 'Matthew Bird: Dormitorium'
Matthew Bird, Marcus McMahon, Shanthakumar Rajaratnam, Sean Drummond, Caitlyn Parry, J David Franke & Phillip Adams
10/06/17
1 item of Media coverage
Press/Media: Review
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SMH: 'Trouble sleeping? Designers might have the answer (here's a clue: lose the blue)'
Matthew Bird, Marcus McMahon, Shanthakumar Rajaratnam, Sean Drummond, Caitlyn Parry, J David Franke & Phillip Adams
28/03/17
1 item of Media coverage
Press/Media: Article/Feature
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ABC RADIO NATIONAL: 'An invitation to sleep'
Matthew Bird, Marcus McMahon, Shanthakumar Rajaratnam, Sean Drummond, Caitlyn Parry, J David Franke & Phillip Adams
20/03/17
1 item of Media coverage
Press/Media: Article/Feature