NEUROSENSORY SYSTEMS
(BNS) EXAM STUDY GUIDE
WITH ACCURATE AND
VERIFIED SOLUTIONS RATED
A.
, PART 1
Broadman areas
Which of these statements about the Middle ear (ME) are TRUE ?
● The ME transduction process operates an amplification in pressure
● The ME acts as a High Pass filter
● The main transduction process achieved by the ME transforms mechanical energy in
electrical energy
● The impedance at the tympanic membrane is lower than the one at the oval window
● The force exerted by the vibration at the oval window is lower that the force exerted
by the tympanic membrane
● The cutoff frequency of the ME filter is around 100Hz
Which of these statements about the Basilar Membrane (BM) are true ?
● Tones at higher frequencies are assumed to give higher displacements closer to the
apex of the BM
● Tones at lower frequencies are assumed to give higher displacements closer to the
base of the BM
● Stiffness and propagation velocity gradually decrease from the base to the apex
● The higher the displacement for a specific tone in its characteristic location on the
BM, the less energy it takes to reach the hearing threshold level (lower threshold) for
that tone
● A sound that elicits displacements closer to the base of the BM encodes lower
frequencies
● None of these statements are true
What is the difference between Discrete Time Signals and Digital Signals ?
● Discrete Time Signals are continuous in time while Digital Signals are discrete in time
● Discrete Time Signals are continuous in amplitude while Digital Signals are discrete
in amplitude
● Discrete Time Signals are continuous in amplitude while Digital Signals are
continuous in time
● They are the same
● Both are discrete in time and in amplitude
Which of these statements about Otoacoustic Emissions (OAEs) are true ?
● OAEs are an objective indicator of cochlear anatomic/functional integrity in vivo
● OAEs are low level sounds generated by the cochlea
● OAEs are generated by the active mechanisms mediated by Outer Hair Cells
● OAEs are used in several clinical applications
● OAEs con only be measured after a specific age
● OAEs have intra-subject test-retest repeatability
● None of these answers apply