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How a cochlear implant works

This is how the implant works:

  • Sounds are picked up by the microphone in the speech processor..
  • The speech processor analyzes the sound and converts it into a special pattern of digital information.
  • This information is then sent to the coil and is transmitted across the skin to the implant.
  • The implant interprets the code and sends electrical pulses to the electrodes in the cochlea.
  • The nerve endings in the cochlea (the area where the hair cells are located) are stimulated and the message is sent along the hearing, or auditory, nerve.
  • The auditory nerve sends them to the auditory centre in the brain. The brain recognises these signals as sound.