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A cochlear implant (CI) is a surgically implanted neuroprosthesis that provides a person who has moderate-to-profound sensorineural hearing loss with sound perception. With the help of therapy, cochlear implants may allow for improved speech understanding in both quiet and noisy environments.
Electrodes found to cause one of these side-effects are deactivated, resulting in fewer signals reaching the brain. In addition, the brainstem is unable to offer the same tonotopic range as the cochlea. With a cochlear implant, the electrodes positioned in the basal end of the cochlea elicit a higher pitch sensation than those positioned in the ...
A cochlear implant is surgical implantation of a battery powered electronic medical device in the inner ear. Unlike hearing aids , which make sounds louder, cochlear implants do the work of damaged parts of the inner ear (cochlea) to provide sound signals to the brain.
The 40-second clip cycles through what a person with a cochlear implant hears when various tones are played, followed by several sentences of speech.
With age, comes a loss in distinction of frequencies, especially higher ones. The electrodes of the implant are designed to stimulate the array of nerve fibers that previously responded to different frequencies accurately. Due to spatial constraints, the cochlear implant may not be inserted all the way into the cochlear apex.
Side effects are few. [24] Cochlear implants. Cochlear implant. Cochlear implants have provided partial hearing to more than 120,000 persons worldwide as of 2008. The ...
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