COMD 4590 : EXAM 2-Jumonville
Document Summary
September 29, 2015: pediatric hearing aids optimizing listening through acoustic. Using meter, child doesn"t get credit for prompted responses. They are often recommended when using fm systems at home: some fm receivers allows the fm level to be adjusted. To bypass the damaged hair cells (in cochlea) New generation: improved communication abilities (auditory cues with lip reading, open set speech) Since 1972 more than 16 different cochlear implants. 1984 fda approved cochlear implants for adults. Cochlea is tonotopic (fine tuned to different frequencies along the way (high f at base, low freq apex) Surgical insertion (by ent) of a receiver stimulator in the mastoid bone and placement of the electrode array in the scala tympani of cochlea. The internal receiver communicates with the externally worn transmitter held in place by magnet. Transmitter is coupled to a speech processor that encodes speech.
