Recommendations for assistive devices and therapies are made that will accomplish your goals. Assistive devices are loaned so you and your family can try them in those situations you want to improve. Click here to schedule a Hearing Rehabilitation Evaluation. Return to top of page. These include a microphone that picks up sound, a speech processor that changes sound into an electrical signal, and a transmitter that sends the signal to the implanted electrode array.
Electrode array in cochlea.
Even in the most severe cases, however, some nerve cells usually remain that can send signals to the brain. When the cochlear implant stimulates the remaining nerve cells, recipients with severe hearing loss regain the ability to hear. To benefit from cochlear implantation surgery, an individual must have enough remaining nerve fibers to receive sound from the implant. There are no tests to predict the level a benefit a particular individual will receive from cochlear implantation. The level of benefit a cochlear implant provide varies among individuals.