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Laser Technique Reveals How Ear Amplifies Sound

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NEW YORK, Dec. 20, 2012 — When illuminated by an ultraviolet laser, a newly developed photonic drug has been shown to inactivate prestin, a motor protein in the ear, revealing how the cochlea amplifies sound. The inner ear actively amplifies sound from forces generated by outer hair cells in the cochlea, but exactly how it accomplishes this had always been somewhat of a mystery. The new technique, developed by Dr. Jonathan A.N. Fisher and colleagues at The Rockefeller University, reveals how the cochlea actively self-amplifies sound it receives to help increase the range of sounds that can be heard. The...Read full article

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    Published: December 2012
    American Hearing Research FoundationAmericasBiophotonicsJonathan A.N. Fisherlight-sensitive drugNew Yorkphotonic drugResearch & TechnologySensors & Detectorssound amplificationThe Rockefeller UniversityLasers

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