diseases of audiology Flashcards
aprox what percent of people over the age of 18 have hearing loss
15%
does hearing loss increase with age
yes
about 10% of adults have experienced ____
tinnitus
true/false: only about 16% of adults with hearing loss use hearing aids
true
audiologists treat impairment of auditory and ___ function
vestibular
vestibular assesments consist of testing for ability to:
maintain an upright posture, coordinate complex movements, and maintain a visual target while moving
common vestibular-related issue:
vertigo (spinning feeling)
Vestibulo-ocular reflex (VOR):
connects the vestibular neural
pathway in the brainstem to neurons that reflexively control the muscles of the eyes to maintain a clear visual image during head
movement.
Vestibulospinal reflex (VSR):
connects from the vestibular nuclei in
the brainstem to motor neurons that control the relevant skeletal muscles; this helps control the body when unexpected changes in
position occur relative to gravity.
what does VNG balance test do
test for rapid eye movement
Posturography assesses an individual’s:
functional balance, change in body weight distribution
VEMP measures:
the electrical activity in one’s neck muscles
otoscopy looks at
ear wax, possible diseases in outer/middle ear
whats impedance
opposition to the sound energy (healthy ears will have less impedance)
whats admittance
how much energy flows through the middle ear
impedance and admittance are all categorized under the word _____ and part of the ____ hearing system
immitance, conductive
how is immitance used in a tympanometry
ear canal is pressured, which pushes the tympanic membrane into middle ear, reducing its ability to vibrate in response to the tone.
what range of db is considered “normal” hearing
-10 - 20
what % would someone have to get on their WRS to have excellent/normal hearing ability
90-100%
?/6 children develop an ear infection before they’re 3yold
5/6
the acoustic reflex threshold measures
the contraction of the stapedius
muscle in response to loud sounds.
otoacoustic emissions are commonly used for: and test the:
newborn hearing screenings, cochlea function
the auditory brainstem response test presents a series of ___ ___ that measure neural response
broadband clicks
true/false: Listeners of tone
languages and speakers of non-tonal languages have the same FFR accuracy
false.
for pure tone optometry, the goal is to identify the lowest intensity for a particular tone that can be heard ___ of time the time
50%
pure tone optometry is usually done through air conduction (headphones) but can also be done through
bone conduction
what are spondee words
two syllable words with roughly equal stress on each syllable (usually compound)
energetic masking:
when the frequencies of the noise overlap with the freqencies of the signal
informational masking:
when your attention is shifted to recognizing/understanding speech when you’re supposed to be focused on another stimuli
