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Troy, N.Y. -  9/10/2019

LRC Recruiting Participants for New Paid Study: Investigating the Effects of Light at Night

The Lighting Research Center (LRC) is recruiting participants over the age of 18 for a new study investigating the effects of light on melatonin levels. The study will take place on four consecutive Fridays: September 13,  20, 27 and October 4. Participants need to attend all four scheduled sessions, unless withdrawing from the experiment.  
In order to be eligible for the study, participants need to regularly have bedtimes no later than 11:30 pm and wake up no later than 8:00 am. Participants will be asked to keep this regular schedule all weeks of the study. Participants will be asked to wear an actigraph and keep a sleep log all 4 weeks of the study.
Participants arrive at the LRC at 11:20 pm each Friday night. Starting at midnight, participants sit in front of a light box for 1 hour using a chin rest. Participants will also be asked to collect 3 saliva samples during this time. Participants experience three lighting conditions, and a dark condition (no light exposure). 
Exclusions: You cannot participate in the experiment if you have major health problems, are colorblind, take prescription medication (except birth control pills), or are traveling more than one time zone the month before or during the weeks of the experiment.
Participants will be paid $70 for each session — a total of $280 for completing all four scheduled sessions. Payment will be processed by Rensselaer after completion of each session. If you are interested in participating, please contact Barbara Plitnick at for more information. Thank you!

About the Lighting Research Center
The Lighting Research Center (LRC) at Rensselaer Polytechnic Institute is the world's leading center for lighting research and education. Established in 1988 by the New York State Energy Research and Development Authority (NYSERDA), the LRC conducts research in light and human health, transportation lighting and safety, solid-state lighting, energy efficiency, and plant health. LRC lighting scientists with multidisciplinary expertise in research, technology, design, and human factors, collaborate with a global network of leading manufacturers and government agencies, developing innovative lighting solutions for projects that range from the Boeing 787 Dreamliner to U.S. Navy submarines to hospital neonatal intensive-care units. In 1990, the LRC became the first university research center to offer graduate degrees in lighting and today, offers a M.S. in lighting and a Ph.D. to educate future leaders in lighting. Learn more at

About Rensselaer Polytechnic Institute
Founded in 1824, Rensselaer Polytechnic Institute is America's first technological research university. Rensselaer encompasses five schools, 32 research centers, more than 145 academic programs, and a dynamic community made up of more than 7,900 students and more than 100,000 living alumni. Rensselaer faculty and alumni include more than 145 National Academy members, six members of the National Inventors Hall of Fame, six National Medal of Technology winners, five National Medal of Science winners, and a Nobel Prize winner in Physics. With nearly 200 years of experience advancing scientific and technological knowledge, Rensselaer remains focused on addressing global challenges with a spirit of ingenuity and collaboration.