![]() However, it allows many people to recognize warning signals, understand other sounds in the environment, and understand speech in person or over the telephone. ![]() Hearing through a cochlear implant is different from normal hearing and takes time to learn or relearn. Signals generated by the implant are sent by way of the auditory nerve to the brain, which recognizes the signals as sound. Cochlear implants bypass damaged portions of the ear and directly stimulate the auditory nerve. Hearing aids amplify sounds so they may be detected by damaged ears. How does a cochlear implant work?Ī cochlear implant is very different from a hearing aid. Instead, it can give a deaf person a useful representation of sounds in the environment and help him or her to understand speech. An electrode array, which is a group of electrodes that collects the impulses from the stimulator and sends them to different regions of the auditory nerve.Īn implant does not restore normal hearing.A transmitter and receiver/stimulator, which receive signals from the speech processor and convert them into electric impulses.A speech processor, which selects and arranges sounds picked up by the microphone.A microphone, which picks up sound from the environment.The implant consists of an external portion that sits behind the ear and a second portion that is surgically placed under the skin (see figure). Congressional Testimony and the NIDCD BudgetĪ cochlear implant is a small, complex electronic device that can help to provide a sense of sound to a person who is profoundly deaf or severely hard-of-hearing.Research Training in NIDCD Laboratories (Intramural).Types of Research Training Funding Opportunities. ![]()
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