ch.5 coursera Flashcards
A young (20-something) man, told by his spouse that he seems to be saying “What?” a lot, is asked to get his hearing tested. The young man does that and finds that a vibrating tuning fork placed on the mastoid bone behind each ear sounds louder than the same vibration placed outside of each ear. What do you conclude? Check all that apply.
there is a problem in the left external or middle ear
there is a problem in the right external or middle ear
Beethoven started to lose his hearing in his late 20s and was completely deaf by the end of his relatively short life. As his hearing was declining, he used “ear trumpets” which were variously shaped long tubes that were held up to his ear. The idea behind such devices is:
1 / 1 point
to increase the amplitude of incoming sound
An individual is born deaf to deaf parents and grows up using sign language. When this individual reaches college age, which of the following could help her understand hearing people:
sign interpreter?
A number of drugs, including some antibiotics and chemotherapeutics, are ototoxic (toxic to the ear, specifically to hair cells). For a person of any age (from birth to elderly) that is exposed to a high dose of an ototoxic drug and becomes deaf, which of the following would be important in determining if a cochlear implant would help? Check all that apply.
hearing quality prior to hearing loss
age at time of hearing loss
age at time of implant?
There are two middle ear reflexes. These reflexes can change a sound stimulus in which of the following ways? Check all that apply.
increase frequency of air conducted sound
*not increase sound amplitude
Question 6
A live cochlea, but NOT a dead cochlea, can produce which of the following effects? Check all that apply
*not decrease resolution btwn neighboring frequencies
Which of the following is true of communication? Check all that apply.
prosidy typically trumps semantics
Outer hair cells have which of the following characteristics? Check all that apply.
their membrane potential typically changes in response to sound
they move in response to sound
outnumber inner hair cells?
Inner hair cells have which of the following characteristics? Check all that apply.
their membrane potential changes in response to sound
they synapse onto spiral ganglion cells, which send axons into the brain
If a person fails otoacoustic emissions testing, what is their perceptual experience likely to be? Check all that apply.
do not hear the tone played into the ear
may experience tinnitus?
Consider the pathway that a sound wave takes during otoacoustic emission testing. When a sound is played into the ear, which of the following happens? Check all that apply.
the stapes pushes on the oval window as the sound goes in
sound that is amplified in the ear conal causes movement of the tympanic membraine
