Exam 1 Part 7 Flashcards
What are the 3 types of listening devices?
Hearing aids, assistive listening devices, cochlear implants
When would someone get a cochlear implant?
If hearing aid device does not benefit them
Device that bypasses the hair cells in the cochlea, stimulates auditory nerve directly, nerve impulses go through the neural auditory pathway
Cochlear implant
What nerve does the cochlear implant stimulate directly?
Auditory nerve
What part of the ear does the hearing aid rely on?
Cochlea
Frequency bands in the cochlear implant are ______ organized
Tonotopically
High frequencies are detected at what part of the cochlea?
Base
Low frequencies are detected at what part of the cochlea?
Apex
Part of the cochlear implant that converts incoming sound to electrical signal
Microphone
Part of the cochlear implant that transmits signal from the microphone to the speech processor
Cable or cord
Part of the cochlear implant that processes and codes signal
Speech processor/external sound processor
Part of the cochlear implant that sends processed signal to the internal receiver
Transmitter or coil
Part of the cochlear implant that stimulates the auditory nerve fiber
Electrode array
Part of the cochlear implant that receives the signal via radio frequency transmission or electromagnetic induction; transmits signal to electrode array
Internal receiver
Part of the cochlear implant that inserts into the cochlea
Electrode array
What are the ALD benefits in cochlear implants?
Direct audio input, bluetooth, t-coil
Combines cochlear implant system with hearing aid technology
Hybrid hearing
What are the candidacy requirements for children age 12 to 24 months?
Bilateral profound sensorineural hearing loss, minimum use of hearing aid for 6 months, demonstrate little to no benefit using HA, lack of auditory skill development, enrolled in AR program
What are the candidacy requirements for children age 2 years to 17 years 11 months?
Bilateral severe to profound sensorineural hearing loss, minimal to no benefit using HA, minimum use of hearing aid for 6 months, lack of auditory skill development, MLNT/LNT is less than 30% with in best aided condition
What are the candidacy requirements for adults?
Bilateral moderate to profound sensorineural hearing loss, minimal to no benefit using HA, sentence recognition is less than 50%, sentence recognition is less than 60% in opposite ear