Associate Professor Shantha Rajaratnam

  • Associate Professor in the School of Psychology and Psychiatry at Monash University
  • Lecturer in Medicine in the Division of Sleep Medicine at Harvard Medical School
  • Associate Neuroscientist in the Division of Sleep Medicine at Brigham and Women's Hospital (USA)
  • on the Board of the Australasian Sleep Association

Current research interests

Associate Professor Rajaratnam is an internationally recognised expert in chronobiology, with longstanding interest in the circadian regulation of sleep, effects of light and melatonin on sleep and circadian rhythms, evaluation of fatigue management programs, and regulation of working time and legal issues relating to sleep loss and fatigue.

Major research achivements

Associate Professor Rajaratnam’s work has contributed to the understanding of therapeutic uses of melatonin and melatonin agonists for sleep and circadian rhythm disorders. He is currently studying the mechanisms through which light affects the internal circadian clock in humans, and is using this information to help develop novel light therapies. Through his collaboration with the Harvard Work Hours, Health and Safety Group, he has been conducting large-scale studies to evaluate fatigue management strategies (including screening for sleep disorders) in emergency responders, including police and firefighters.

CCRE role & involvement in CCRE projects

As an Associate Investigator in the CCRE, Associate Professor Rajaratnam will provide expertise in the field of chronobiology, facilitate collaborations with other eminent chronobiology groups, assist in achieving CCRE training/educational objectives through collaborative postgraduate training programs, and facilitate the translation of research through targeted educational and policy programs.

Associate Professor Rajaratnam will be actively involved in the Neurobehavioural and Neurobiological Interactions with Sleep Health stream, and will serve on the CCRE Research Committee.