The primary objective of this work is to determine the effect noise has on the auditory system (both auditory health and performance) and also the degree to which the effect of pre-noise therapy such as Near Infrared (NIR) light can mitigate the effects of noise exposure.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
14
NIR Light Therapy will be administered with the Earlight Generation 1.4 device during 2 out of the 4 sessions. It will be administered to each ear individually for 30 minutes per ear.
Noise stimulus will be administered, open ear, to continuous broadband noise up to 25% of the allowable daily dose of noise per the AFI 48-127 Occupational Noise and Hearing Conservation Program.
Sham NIR Light Therapy will be administered with the Earlight Generation 1.4 device during 2 out of the 4 sessions. It will be administered to each ear individually for 30 minutes per ear.
U.S. Army Aeromedical Research Laboratory
Fort Rucker, Alabama, United States
University of Miami Miller School of Medicine
Miami, Florida, United States
Wright-Patterson Air Force Base
Wright-Patterson Air Force Base, Ohio, United States
Change in auditory threshold
Auditory function tests will be measured through the change in air conduction threshold measurements from 500 up to 8000 Hz
Time frame: Baseline, up to 365 days
Change in otoacoustic emissions (OAE)
Auditory performance will be measured through OAE testing
Time frame: Baseline, up to 365 days
Change in central auditory performance (CAP)
Auditory performance will be measured through central auditory processing assessments
Time frame: Baseline, up to 365 days
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