1. List the five main components of the Cochlear Nucleus Freedom implant and briefly describe how it works.
Head piece coil
Microphone cover
Battery
Controller cord jack
Body-worn controller
Brief Description: The Nucleus Freedom cochlear implant and speech processor was made by Cochlear Ltd. of Australia. A cochlear implant is an electronic medical device that replaces the function of the damaged inner ear. Unlike hearing aids, which make sounds louder, cochlear implants do the work of damaged parts of the inner ear (cochlea) to provide sound signals to the brain.
2. Define the term “mapping”.
Mapping is the term for programming a cochlear implant to the specifications and needs of its user.
3. What relevance does auditory deprivation have with regard to hearing aid fitting and use?
Speech recognition scores and the duration of bilateral significant hearing loss and with the duration of auditory stimulation before bilateral significant hearing loss. No significant correlation with the duration of auditory deprivation or with the duration of prior auditory stimulation regards to hearing and fitting/use.
4. Outline the systems involved in helping us maintain our balance. sensory input from vision (sight) proprioception (touch) vestibular system (motion, equilibrium, spatial orientation) integration of that sensory input; and motor output to the eye and body muscles
5. What non-audiometric tools are available for the audiologist to assess the impact of dizziness or tinnitus on person’s day to day activities?
Pulse oximetry and Finger stick glucose test
ECG
MRI
6. Why the inner ear is called a “dual sensory” organ?
The inner ear is called dual sensory because it controls a combination of vision and hearing.
Chapter 4
Short Answer / Essay
1. Speech is a highly redundant signal. Why is that a good thing for all listeners, especially for persons with hearing impairment?
The redundant