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 email@example.com or (518) 687-7166 for more information. Thank you!