A cochlear implant is a surgically implanted device to give an individual with mild to severe sensorineural deafness a modified sensory perception of sound. CI deafness bypasses the natural audible sound process to replace it by sending electric signals that directly reach the sensory nerve. The electrical signal is processed by the cochlea in the inner ear and then sent to the brain where it decodes and sends the desired sound or tone. In many cases, this device is used as a hearing aid with the purpose of improving a person's hearing.
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