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Scientists Reveal the True Identity of Pivotal Hearing Structure
Researchers at the National Institute on Deafness and Other Communication Disorders (NIDCD), one of the National Institutes of Health (NIH), and the Scripps Research Institute in La Jolla, CA say that they have identified two key proteins that join together at the precise location where energy of motion is turned into electrical impulses.
The discovery is significant because scientists had long been trying to understand the pivotal point at which a person is able to discern sound.
This team has helped solve one of the lingering mysteries of the field. The better we understand the pivotal point at which a person is able to discern sound, the closer we are to developing more precise therapies for treating people with hearing loss, a condition that affects roughly 32.5 million people in the United States alone, Nature magazine quoted Dr. James F. Battey, Jr., director of the NIDCD, as saying.
He said that sound vibrations entering the ear first bounce against the eardrum to cause it to vibrate, which in turn causes three bones in the middle ear to vibrate, amplifying the sound.
He further said that vibrations from the middle ear set fluid in the inner ear, known as cochlea, into motion and a travelling wave to form along a membrane running down its length.
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