The 30th Annual Meeting will be held in Groningen (The Netherlands) on June 21-24, 2018

Conference venue Groningen 2018

SLTBR Meeting Final program 2018


 Social program

Boat Trip through the canals of Groningen: Thursday afternoon, June 21 from 5.00 pm to 6.15 pm (costs: 39 Euro/person).

You can find info and register for the social Thursday event here: here


The SLTBR proudly collaborates with the following industrial partners and donors


Daylight Academy
c/o Velux Stiftung
Kirchgasse 42
8001 Zürich



ERIC DELLOYE, Managing Director

LUCIMED S.A. rue le marais, 12a B-4530 Villers-le-Bouillet, Belgium

TEL +32 4 369 48 36 | FAX +32 4 228 04 18 | MOBILE +32 478 28 85 95

Chromaviso Chromaviso

Claus Puggaard
Partner, Director of Sales


lumie blue normal use

Lumie (Outside In Ltd.)
Jonathon Cridland, CEO

3 The Links, Traflaga Way
Bar Hill, Cambridge CB23 8UD
United Kingdom

Wave medical

Circadian optics



Marijke C.M. Gordijn, PhD

CEO/Founder, senior scientist

Chrono@Work B.V.

Friesestraatweg 213, 9743 AD Groningen

The Netherlands

T: +31 (0)50 2111946




Home | The Optical Society

The Optical Society 2010 Massachusetts Ave, NW




Toldboden 1, 3.
DK-8800  Viborg

Register for the meeting: here



Invited SLTBR Speakers at the 2018 Meeting in Groningen



Julie Carrier (CA)

Dr Carrier is Full Professor in Psychology at the Université de Montréal and Fellow of the Canadian Academy of Health Science. She is the scientific director of the Canadian Sleep and Circadian Network. Her work identified key mechanisms underlying age-related changes in the sleep-wake cycle and and their functional consequences on physical and cognitive health in normal and pathological aging. Her research team contributed to the development of several methodological tools in sleep and circadian research (e.g. sleep studies using EEG-fMRI fusion and combination of EEG-MEG, evaluation of light sensitivity using fMRI) in collaboration with several international teams. She published more than 130 scientific articles.



Tom de Boer (NL)

Tom de Boer, PhD, is Associate professor in the Laboratory for Neurophysiology of the Department of Cell and Chemical Biology of the Leiden University Medical Center. He obtained a master’s degree in Chronobiology in 1992 and a doctorate in Mathematics and Natural Sciences in 1996 at the University of Groningen. He worked in sleep and chronobiology laboratories in Zurich (Switzerland), Philadelphia, PA (USA), and Leiden (The Netherlands) and published over 80 peer reviewed papers, reviews, and book chapters on sleep and sleep research. His main research concerns the interaction between sleep and circadian or circannual rhythms. He is specialized in sleep-wake electroencephalogram-electromyogram recordings in freely moving rodents. This technique is combined with brain/body temperature recordings, and/or electrophysiological recordings.




Derk-Jan Dijk (UK)

He is a Royal Society-Wolfson Research Merit Award holder. He previously was a Senior Research Associate in the Institute of Pharmacology at the University of Zurich, an Assistant Professor of Medicine at Harvard Medical School, and an Associate Neuroscientist in the Brigham and Women’s Hospital in Boston. Professor Dijk has more than 30 years of experience in clinical sleep research. His current research interests include the pharmacological manipulation of sleep and cognition; the role of circadian rhythmicity in sleep regulation; identification of novel-biomarkers for susceptibility to the negative effects of sleep loss; understanding age and sex related differences in sleep physiology and sleep disorders.



Marijke Gordijn (NL)

Marijke Gordijn studied Biology at the University of Groningen and specialized in chronobiology and psychiatry investigating 24-hour rhythms, light, sleep and well-being. After 25 years of research, she started her company Chrono@Work; a science based consulting company, also providing education and carrying out research projects and supporting laboratory tests. Focus of interest are topics such as treatment of sleep-wake rhythm disorders and mood disorders, interventions for improving shift work, and the prevention of disturbed sleep in society. Marijke is a guest employee of the University of Groningen, co-founder of Chronotherapy Network Netherlands and a member of several boards and scientific committees (SOLG, NSWO, Dutch Health Council).



Claude Gronfier (FR)

Claude Gronfier is senior research scientist at the National Institute for Health and Medical Research (Inserm, Lyon, France). After a PhD in Neuroscience in Strasbourg (France), he did a 5-year Fellowship on Sleep Medicine at Harvard Medical School in Boston (USA). He then joined Inserm (Lyon, France) where he obtained a tenured position in 2008. Claude has published over 60 articles, 4 review articles, 12 books/chapters, 35 abstracts (120 total), and has given over 80 invited lectures (H24, M1). He has been directing the Platform for Human Chronobiology in Lyon (HEH Hospital) over the past 15 years. He is a former member of the board of Directors of the Society for Light Treatment and Biological Rhythms (SLTBR), and of the scientific committee of the European Sleep Research Society. He is currently on the boards of the French National Institute of Sleep and Vigilance (INSV), of the French Sleep Research Society (SFRMS), and he is Vice President the French Society of Chronobiology. He has been invited expert by the working group on the effects of LED lights on health (AFSSET 2010), and by the European workgroup on the effects of light on Health (SCENIHR 2012). He chaired the Working group “Health effects of Shiftwork” set by the French Agency for Food, Environmental and Occupational Health & Safety (Anses), who published its report in 2016. He is currently a member of the task force working on the impacts of LEDs on health. His current research projects in humans focus on the mechanisms involved in non-visual photoreception in humans, on the effects of light on physiological functions (alertness, cognition, mood), and on the design of lighting strategies for the treatment of circadian, mood, vigilance, and sleep disorders, in real-life conditions (jet lag, shiftwork, extreme environments), and in pathological conditions (Parkinson’s disease, ocular diseases). In 2019, he will organize the XVI European Biological Research Society Congress, and will be pleased to welcome you in the superb city of Lyon!




Samer Hattar (USA)

I was born in Amman, Jordan. I attended Yarmouk University for my undergraduate studies, where I majored in Biology/Chemistry. I began my graduate studies in biochemistry in 1993 at the University of Houston where I studied circadian rhythms’ regulation. I completed my postdoctoral fellowship at the Johns Hopkins University (JHU), where I made discoveries on ipRGCs, the ganglion cell photoreceptors. In 2004, I established an independent laboratory in the Department of Biology at JHU and received tenure in 2011. In 2017, I moved to the National Institute of Mental Health and established the section on light and circadian rhythms.



Tone Henriksen (NOR)

Tone Elise G. Henriksen MD, PhD researcher University of Bergen, Chief Consultant Psychiatrist Valen Hospital. In her practice in psychiatry, she has become increasingly aware of the mismatch between the astonishing results from the clinical studies on chrono-therapeutic interventions in affective disorders, and the disproportionate low use of chronotherapy in the clinic. The publication Blue-blocking glasses as additive treatment for mania: a randomized controlled trial, received the Best Paper of the Year Award, runner up, from the International Society for Bipolar Disorders in 2017, and is the most downloaded paper from Bipolar Disorders in 2016.




Robert Levitan (CA)

Dr. Robert Daniel Levitan is a Psychiatrist at the Centre for Addiction and Mental Health, and a Professor of Psychiatry and of Physiology at the University of Toronto, Toronto, Canada. He holds the Cameron Holcombe Wilson Chair in Depression studies at CAMH and University of Toronto. Dr. Levitan’s primary research interest is the “atypical spectrum” of mood disorders which encompass both depression and overeating/obesity, including seasonal affective disorder. Dr. Levitan combines clinical research work in adult patients with early human developmental research to help unravel the early origins and inter-generational transmission of atypical depressive subtypes.




Peter Meerlo (NL)

Peter Meerlo received his PhD in 1997 at the University of Groningen on research concerning stress, circadian rhythms and sleep. He continued this research as a postdoctoral fellow and research associate at Northwestern University in Chicago. In 2002 he returned to Groningen where he is now a member of the Chronobiology group in the Groningen Institute for Evolutionary Life Sciences. Part of his current research program is focused on the consequences of chronically restricted or disrupted sleep and the role of sleep disturbances in psychiatric diseases.




Barbara L. Parry (USA)

Barbara L. Parry, M.D. is Professor of Psychiatry at the University of California, San Diego (UCSD) and Director of the Women’s Mood Disorders Clinic.  She completed a Research Fellowship in Clinical Psychobiology at the National Institutes of Health in Bethesda, Maryland, a Residency in Psychiatry and an Internship in Internal Medicine at the University of California, Los Angeles.  Her focus is the chronobiology of premenstrual, peripartum and menopausal depression; sleep, light and melatonin studies; and combined sleep and light therapy, work supported by NIH funding and reported in over 300 publications. She’s served on study sections, Review and Editorial Boards.



Norman Rosenthal (USA)

Norman E. Rosenthal is the U.S. psychiatrist best known for leading the team that described seasonal affective disorder (SAD) and pioneered the use of light therapy at the National Institute of Mental Health in the 1980s.  He has published extensively on that topic in the professional literature and is the author of Winter Blues and several other books on mental health for the general public.  He is currently in private practice in Maryland and is clinical professor of psychiatry at Georgetown Medical School.


Bill Schwartz (USA)

William J. Schwartz is currently Professor of Neurology (Dell Medical School) and Integrative Biology (College of Natural Sciences), at The University of Texas at Austin, and Editor-in-Chief of the Journal of Biological Rhythms. For nearly four decades, he has been conducting research on biological clocks and the mentoring of trainees in basic and clinical neuroscience. Schwartz completed his M.D. degree and neurology residency at the University of California San Francisco, a research fellowship at the National Institute of Mental Health, and was on the faculties of Harvard Medical School, Massachusetts General Hospital, and University of Massachusetts before his current position.



Manuel Spitschan (UK)

Dr Manuel Spitschan (Department of Experimental Psychology, University of Oxford) read psychology at the University of St Andrews and completed his PhD at the University of Pennsylvania. After a short post-doctoral fellowship at Stanford University/VA Palo Alto, he joined the University of Oxford as a Sir Henry Wellcome Postdoctoral Fellow in September 2017, and was appointed as a Biomedical Sciences Junior Research Fellow at Linacre College in October 2017. Dr Spitschan is interested in visual and non-visual responses to light in humans and the precise quantification and display of visual stimuli. In January 2018, he was elected chair of the Color Technical Group in the Optical Society of America, and is serving on the Joint Technical Committee 9 within the CIE.



Michael Terman (USA)

Dr. Terman, a co-founder of SLTBR, is Professor of Clinical Psychology in Psychiatry at Columbia University. He is president of the Center for Environmental Therapeutics (, a nonprofit education and research agency focused on applied chronobiology. He is co-author of the treatment manual, Chronotherapeutics for Affective Disorders, and, for general readers, Reset Your Inner Clock. His lab and clinical work has focused on mood disorders, circadian rhythm sleep disorders, chronotherapy, photobiology, and diagnosis and assessment. HIs group has produced a set of novel treatment methods including 10,000-lux light therapy, dawn and dusk simulation, and high-density negative air ionization.



Eus van Someren (NL)

After his training in physics, psychophysiology and neuropsychology he received a cum laude PhD in neurobiology from the faculty of medicine. He leads the Sleep and Cognition group at the Netherlands Institute for Neuroscience of the Royal Academy of Arts and Sciences and focuses on the brain mechanisms of insomnia. He received prestigious grants and his ~200 publications in high-ranking scientific journals including NJEM, JAMA, Nature Neuroscience, Nature Genetics and PNAS are highly cited (H: 47). His informal and easy manner and infectious enthusiasm for sleep neuroscience make him a frequently invited speaker, e.g. for TED-X.



Tom Wehr (USA)

Dr. Wehr completed undergraduate education at Yale University, medical training at the University of Louisville, psychiatric training at Yale University Medical School and a research fellowship at NIMH.  Currently, he is Scientist Emeritus in the Intramural Research Program of the NIMH, where formerly he was chief of the Clinical Psychobiology Branch.  His research focuses on the role of biological rhythms in mood disorders.  With colleagues, this effort led to the discovery of light-suppression of human melatonin secretion, SAD and its treatment with light, a system in humans that responds to seasonal changes in photoperiod, and lunar effects on bipolar disorder.



Anna Wirz-Justice (CH)

Anna Wirz-Justice, a co-founder of SLTBR, is emeritus Professor at the Centre for Chronobiology, University of Basel. She is co-author of the manual for clinicians, Chronotherapeutics for Affective Disorders. Post-lab explorations reach out to collaborations with architects, artists, and lighting designers. She is on the steering committee of the newly founded Daylight Academy which has published “Changing perspectives on daylight: science, technology, and culture.” Science/AAAS, Washington DC, 2017.




Katherine L. Wisner (USA)

Dr. Wisner’s main focus is research related to the psychiatric treatment of women of childbearing age. She is internationally recognized as an expert in the treatment of mood disorders in women, with particular expertise in pregnancy and the postpartum period. She has been the principal investigator on multiple National Institute of Mental Health- and foundation-funded research projects including the impact of medication use during pregnancy for Unipolar and Bipolar Disorders, a Randomized Controlled Trial of Estradiol for Postpartum Depression, Screening for Postpartum Disorders, and the efficacy of bright light treatment for patients with bipolar disorder. Other areas of interest in include mood disorders in the premenstrual and perimenopause periods, post-bariatric surgery, complex medical-psychiatric diagnostic assessment and treatment-refractory mood disorders.