Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
NA
30 participants
INTERVENTIONAL
2006-03-31
2006-10-31
Brief Summary
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Detailed Description
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Participation in this study will last 15 days. At the beginning of the study, participants will be provided with study materials and instructed in their use. These materials will include a wrist actigraph, which is a sleep and wakefulness monitoring device similar to a wristwatch; a binder containing instructions, questionnaires, and forms; and a light mask. Participants will be randomly assigned to receive a light mask with either intense green or dim red light. Participants will wear the wrist actigraph throughout the study. For the first 3 days of the study, participants will sleep normally and fill out questionnaires and a sleep diary. The questionnaires will measure mood, sleepiness, sleep quality, treatment effects, and sleep time preference. The sleep diary will be a record of time spent sleeping, time it takes to fall asleep, number of times waking during the night, and similar measures. Starting on the third night, participants will wear the light mask when sleeping. Every day participants will fill out the questionnaires and sleep diary, and they will contact the study investigators to ensure compliance and to ask any questions. Participants will also provide saliva and urine samples once at the beginning and once at the end of the study. These samples will be used to test for testosterone and LH, respectively.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
SINGLE
Study Groups
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Green Light Mask
Green light mask
Participants will receive approximately 10,000 lux from green light-emitting diodes.
Red light mask
Red Light Mask
Participants will receive approximately 0.5 lux from white light-emitting diodes covered by a red gel.
Interventions
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Green light mask
Participants will receive approximately 10,000 lux from green light-emitting diodes.
Red Light Mask
Participants will receive approximately 0.5 lux from white light-emitting diodes covered by a red gel.
Eligibility Criteria
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Exclusion Criteria
* Presence of a sleep disorder
25 Years
60 Years
MALE
Yes
Sponsors
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National Institute of Mental Health (NIMH)
NIH
University of California, San Diego
OTHER
Responsible Party
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University of California, San Diego
Locations
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UCSD
La Jolla, California, United States
Countries
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Other Identifiers
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