A cochlear implant is a surgically implanted device that provides a person with moderate to profound sensorineural hearing loss with the perception of sound by bypassing acoustic hearing altogether and directly electrically stimulating the auditory nerve. It has two main parts, an external sound processor worn behind the ear or, in some newer designs, held to the head magnetically, and an internal implant placed in the cochlea whose electrodes stimulate the cochlear nerve; with training and regular use, recipients learn to interpret the resulting electrical signals as meaningful speech and sound. The implant is placed under general anesthesia and typically allows same-day discharge, and outcomes afterward vary considerably depending on factors including the age of implantation, parental involvement and education level, and the duration and cause of the hearing loss.
Facts
Sources
1. Wikipedia
Wikipedia contributors, Wikimedia FoundationWikipedia, Cochlear implant, History section, first paragraph
André Djourno and Charles Eyriès invented the original cochlear implant in 1957.
https://en.wikipedia.org/wiki/Cochlear_implant, lead section
A cochlear implant (CI) is a surgically implanted neuroprosthesis that provides a person who has moderate-to-profound sensorineural hearing loss with sound perception.
View the Source Reader Challenges (0)
No disputes yet. Spotted an error or a better source? Open the first one.
Sign in to dispute this or suggest a correction.
View At A Past Year
Choose a year to see this entry's facts and connections as the atlas records them at that moment: what it held then, what it held instead, and what it had not yet adopted. Choose Present for the current record.