Lab Members

  • Principal Investigator
      Gooley, Joshua J
      Associate Professor

      Harvard University, USA
      Dr. Gooley joined Duke-NUS Medical School in 2008 as an Assistant Professor in the Neuroscience and Behavioral Disorders Program. He is Principal Investigator of the Chronobiology and Sleep Laboratory, located in the SingHealth Investigational Medicine Unit at Singapore General Hospital. In 2005, he received his Ph.D. in Neurobiology from Harvard Medical School (HMS), where he studied neural pathways that mediate entrainment of circadian rhythms. During his postdoctoral fellowship at Brigham and Women’s Hospital (Boston, USA) and HMS, his research focused on effects of light on circadian rhythms and melatonin secretion. His current research program at Duke-NUS focuses on understanding the role of sleep and circadian rhythms in regulating human performance and physiology. (link to Dr. Gooley’s publications)

  • PhD Student
      Rachel Seng Charoenthammanon
      PhD Student

      B.A. Biological Sciences
      (conc. Neurobiology)
      Northwestern University, Evanston IL, USA

      B.A. Computer Science
      (conc. Human-Computer Interaction)
      Northwestern University, Evanston IL, USA
      Of all the organs in the human body, the brain is by far the least understood; yet it is the black box that is responsible for human consciousness. Given that humans spend a substantial amount of time sleeping, the study of sleep is vital to the unravelling of the mystery that is the brain. I want to better understand the biological necessity of sleep (in particular its effect on cognitive processing), the manifestation of individual differences in sleep (e.g. sleep patterns, sleep deprivation thresholds, sleep disorders), and how to leverage the full therapeutic properties of sleep to enhance individual performance and well-being

      Loke Yng Miin
      PhD Student

      B. Soc. Sci. (Hons) Psychology
      National University of Singapore, Singapore
      How much and how well we sleep greatly influence our cognitive and emotional processing on a day-to-day basis. As a graduate student at Chronobiology and Sleep Laboratory, I am interested in the role of sleep in mental health and wellbeing. Additionally, I am interested in using physiological recordings as objective measures of human emotional processing.

      Yeo Sing Chen
      PhD Student

      BSc (Hons.) Chemistry
      Nanyang Technological University, Singapore

      MSc Chemistry
      National University of Singapore, Singapore
      The brain not only allows us to process sensory information and execute motor commands, but also allows us to think, analyze, and learn. The memories and experiences stored in the brain guide our actions in the future and facilitate problem-solving. I am interested in studying the neural mechanisms that underlie learning, memory, and creative thinking.

  • Staff
      Rukmini Dhara
      Research Fellow (Senior)

      PhD., Integrated Biology and Medicine
      Duke-NUS Medical School, Singapore
      The Chronobiology and Sleep Laboratory (CL) is also interested in the pupillary light responses, which are mediated by the same intrinsially photosensitive retinal ganglion cells (ipRGC) which mediate other non-visual responses to light like circadian rhythms and sleep/wake regulation. Rukmini worked on the development of a light exposure protocol for chromatic pupillometry useful for sreening of eye diseases, based on the differential light responses of rods, cones and ipRGC during her PhD at the CL. Prior to joining the CL as a Research fellow, she was with the Visual Neurosience laboratory at the Singapore Eye Research Institute and helped in the further development of chromatic pupillometry as a sreening tool for ocular diseases like glaucoma, diabetic retinopathy and others.

      Cheng Li
      Research Fellow

      PhD., Machine learning and artificial intelligence
      Deakin university, Australia
      My research interests focus on Bayesian statistics and optimization. I am interested in using machine learning methods to understand sleep pattern and also perform automatic sleep stage classification. My objective is to advance the use of machine learning and artificial intelligence methods in the sleep domain.

      Charmaine Ter Li Min
      Research Assistant

      B. Soc. Sci (Hons) Psychology
      National University of Singapore, Singapore
      For something that takes up more than one-third of our lives, what we really know about sleep is arguably not a lot. Nonetheless, its effects on daily human performance or even clinical populations are salient and extremely significant. I am thus interested in furthering our understanding of sleep behavior, and how it can be integrated into interventions to improve one’s physical and mental health.

      Crystal Ong Huiyi
      Research Assistant

      B. Soc. Sci (Hons) Psychology
      National University of Singapore, Singapore
      Sleep is often neglected in pursuit of contemporary demands like work, good grades, and so on. However, having sufficient, good quality sleep is critical not just for higher productivity, but our mental wellbeing as well. I’m motivated to explore approaches to improve sleep behaviour, in hopes that our research can inform policy changes on the broader scope too.

      Stephanie Anne Fernandez
      Research Assistant

      BSc (Hons.) Biological Sciences
      Second major in psychology
      Nanyang Technological University, Singapore
      Diseases of the mind, such as Alzheimer’s and Parkinson’s, are becoming more prevalent due to increased life expectancies and no known cure. As sleep is an innate practice which has been associated with improving attention, memory and executive functions, it is my interest to study the natural and rejuvenating mechanisms of sleep on cognitive skills which could consequently inspire effective treatments for such diseases.

      C Yuvan
      Research Assistant

      BA (Hons) Psychology
      Monash University, Australia
      Sleep is increasingly being seen as the third pillar of health alongside exercise and a healthy diet. Lack of sleep presents a major health issue in modern society, detrimentally impacting both our brains and our bodies. At CSL, I'm interested in probing the effects of sleep deprivation on brain function, particularly in the processes of attention, memory and learning.

      Samantha Lim
      Research Assistant

      B.A. (Hons) Linguistics and Multilingual Studies
      Nanyang Technological University, Singapore

      M.A. Linguistics and Multilingual Studies
      Nanyang Technological University, Singapore
      I am interested to better understand physiological and environmental variables that can facilitate improved cognitive processing and learning. Sleep (the adequacy of it) is an important factor. It has been found a necessary condition for optimal neuropsychological functioning. In my earlier research life at the Neurolinguistics and Cognitive Science Lab (NTU), I examined the impact of music experience on language learning.

      Jacinda Tan Geok Gun
      Research Assistant

      BSc (Hons) Biological Science
      Nanyang Technological University, Singapore
      Sleep, although usually taken for granted, is absolutely essential to ensure proper function of our brain and body, such as cognitive processing and glucose metabolism. Thus, with this opportunity I hope to leverage on my previous research experience to explore and elucidate the role of sleep in learning and memory.

  • Student
      Justinn Tan
      Thesis Student

      Undergraduate, B.Sc. (Hons) Life Sciences
      National University of Singapore
      A traditional human is expected to spend a third of their days asleep, to regain their strength for the next day. However, as our modern lives get more hectic, some of us might find ourselves sleeping less and less to make time for other matters such as work or studies. In my journey with CSL, I hope to study and better understand sleep and its impact on our health and performance in daily life.

Link to Alumni

© Chronobiology and Sleep Laboratory 2021