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                             Rensselaer Polytechnic Institute

Contact:   Rebekah Mullaney
Lighting Research Center
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Troy, N.Y. -  5/24/2017

LRC Recruiting Participants for Paid iPad Study

The Lighting Research Center (LRC) is recruiting individuals over the age of 18 to participate in a paid study that will take place on four consecutive Fridays: June 9, 16, 23 and 30.  The study will test the effect of light from an iPad screen on melatonin production.

Participants need to attend all four scheduled sessions, unless they decide to withdraw from the experiment.  Participants need to have regular bed times no later than 11:30 p.m. and wake up no later than 8:00 a.m., Sunday night through Friday morning. This regular schedule must be kept throughout the study. Participants need to keep a sleep log starting one week before the study begins, continuing throughout the study.

Participants need to bring their own compatible iPad to the study; the iOS update that includes Night Shift Mode needs to be available on their iPad. Compatible iPad versions are: iPad Air, iPad Air 2. On two of the four nights, participants will use their iPads with different settings of the Night Shift mode—on one night they will wear orange goggles that block light, and on one night they will wear blue light goggles. A secure Wi-Fi network will be available for participants.

Each Friday night, participants will arrive at the LRC at 10:30 p.m. and will sit in a dimly lit room until 11:00 p.m. Researchers will then collect a saliva sample. After the saliva sample, participants will use their iPads for two hours, watching what they wish during that time. At midnight and at 1:00 a.m., additional saliva samples will be taken. After the 1:00 am sample, participants will be sent home.

Exclusions: Persons cannot participate in the experiment if they smoke or have any major health problems. Persons will not be eligible to participate in the study if they take any prescription medication (except birth control pills). Persons will not be allowed to participate if they will be traveling more than one time zone the week before or during the weeks of the experiment.

Participants earn $40 for each nighttime session, totaling $160 for all four weeks. Payment will be processed by Rensselaer after each nighttime session. If a participant is not a U.S. citizen, taxes will be withheld from payment. Persons interested in participating in the study should contact Barbara Plitnick at or (518) 687-7166 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.