Tracy and the Cochlear Implant Part 1
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Uploaded by HouseEar on Dec 4, 2009
In 1981 the House Ear Institute became the first center in the world to implant a pre-school-aged child with a single-channel cochlear implant. This documentary followed Tracy and her family as she received a single-channel Cochlear Implant.
House Ear Institute Copyright 1981. SD-5
How CI Works
Cochlear implant technology generates patterns of nerve activity that imitate those of a normal ear for a broad range of sounds. During surgery, a series of electrodes are implanted into the cochlea, or inner ear. After a post-surgery period of four to six weeks during which they cannot yet hear with the device, cochlear implant patients return to their clinic for an initial stimulation and mapping session with an audiologist. Mapping refers to the process of adjusting the external speech processor for the individual. At this time, the patient is fitted with the external components of the cochlear implant. These components include a tiny microphone that picks up environmental sounds and transmits them to a speech processor, where mechanical sounds are converted into a processed electrical signal. A transmitter coil placed on the scalp behind the ear passes the signals to a receiver located under the scalp. The signal then travels along a wire to the tiny electrodes implanted within the cochlea. The electrodes send the signals from the cochlea along the auditory nerve to the brain. This entire process happens in real time.
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check out the coke bottle glasses on the mother :P
bunzy11 2 years ago 2