C_S_D 4340 Lecture Notes - Lecture 15: Cochlear Implant, Cochlea, Hair Cell
Document Summary
First commercial cis: introduced 1972, more than 1000 implanted between 1972 and mid-1980"s, house 3m single-electrode implant formally approved by fda in. How does a cochlear implant work: how is a cochlear implant. Hearing aids amplify sound. (still relying on cochlea to respond to sound) Cochlear implants compensate for damaged or non-working parts of the inner ear. Bypasses the cochlea and hair cells: when hearing is functioning normally, complicated parts of the inner ear convert sound waves in the air into electrical impulses. These impulses are then sent to the brain, where a hearing person recognizes them as sound. A cochlear implant works in a similar manner. It electronically finds useful sounds and then sends them to the brain. Hearing through an implant may sound different from normal hearing, but it allows many people to communicate fully with oral communication in person and over the phone.
