Question 1

The phenomenon known as two-tone suppression occurs when

Accepted Answer

A)   a second tone of a slightly different frequency is added to the first tone.
B)   three tones are heard together.
C)   the hair cells are not tuned properly to the particular frequencies heard.
D)   several tones are heard at the same time.
E)   any more than two tones cannot be heard.

Question 2

The tympanic, vestibular, and middle canals are filled with which substance?

Accepted Answer

A)   Muscle
B)   Skin
C)   Bone
D)   Fluid
E)   Air

Question 3

Refer to the graph.
 Which frequency and volume combination would be most likely to suppress the firing of the 8000-Hz auditory nerve fiber?

Accepted Answer

A)   500 Hz at 20 dB
B)   500 Hz at 40 dB
C)   1000 Hz at 40 dB
D)   1000 Hz at 70 dB
E)   8000 Hz at 60 dB

Question 4

Which instrument can create a noise with the lowest fundamental frequency?

Accepted Answer

A)   Violin
B)   Piccolo
C)   Tuba
D)   Flute
E)   Harp

Question 5

The _______ refers to a graph that plots the firing rate of an auditory nerve fiber in response to a sound of a constant frequency at increasing intensities.

Accepted Answer

A)   threshold tuning curve
B)   frequency tuning curve
C)   relative amplitude function
D)   spike histogram
E)   rate-intensity function

Question 6

Sounds are first collected from the environment by the

Accepted Answer

A)   cochlea.
B)   tympanic membrane.
C)   ossicles.
D)   pinna.
E)   ear canal.

Question 7

Why is it important for the basilar membrane to move?

Accepted Answer

A)   Movement of the basilar membrane causes hair cells to bend, releasing neurotransmitters.
B)   Movement of the basilar membrane causes the ossicles to transmit energy to the oval window, releasing neurotransmitters.
C)   Movement of the basilar membrane blocks loud sounds from entering the inner ear, preventing damage to the inner ear structures.
D)   Movement of the basilar membrane causes neurons to spike in the ear canal.
E)   It's not; the basilar membrane doesn't move.

Question 8

A(n)  _______ is a map plotting the responses of a neuron or fiber to sine waves with varying frequencies at the lowest intensity that will give rise to a response.

Accepted Answer

A)   spectrum
B)   isointensity function
C)   threshold tuning curve
D)   characteristic frequency
E)   place code

Question 9

Which of the following is not a cause of hearing loss?

Accepted Answer

A)   Otitis media
B)   Use of ototoxic drugs
C)   Masking
D)   Excessive exposure to noise
E)   Otosclerosis

Question 10

One of the roles of the ossicles is to

Accepted Answer

A)   amplify sounds.
B)   muffle sounds.
C)   prevent the cochlea from vibrating.
D)   transmit sound waves back to the environment.
E)   protect the ear canal.

Question 11

How are sound waves described, and what psychological aspects do they correspond to?

Accepted Answer

Sound waves are described and measured i...

Question 12

The first area within the temporal lobes that is responsible for processing acoustic information is called the

Accepted Answer

A)   lateral auditory cortex.
B)   medial auditory cortex.
C)   belt area.
D)   parabelt area.
E)   primary auditory cortex.

Question 13

Refer to the graph.
 When you play piano, why might you have to hit the keys harder with your left hand (lower notes)  than your right hand (higher notes)  to make them sound the same volume?

Accepted Answer

A)   Low-frequency sounds are more condensed, making them sound louder.
B)   High-frequency sounds are less condensed, making them sound softer.
C)   Higher-frequency tones require higher dB levels to sound the same volume as lower-frequency tones.
D)   Lower-frequency tones require higher dB levels to sound the same volume as higher-frequency tones.
E)   The audibility threshold curve is lower for low-frequency sounds and higher for high-frequency sounds.

Question 14

Describe the pathway of auditory nerve signals from the auditory nerve to primary auditory cortex.

Accepted Answer

Auditory nerve fibers leaving the cochle...

Question 15

Refer to the figure.
 The bottom portion of the figure depicts the simplest kind of sound, known as a

Accepted Answer

A)   sine wave.
B)   simple sound.
C)   period.
D)   phase.
E)   noise.

Question 16

Hearing loss that is caused by problems with bones of the middle ear is called

Accepted Answer

A)   masking.
B)   ototoxia.
C)   auditory suppression.
D)   sensorineural hearing loss.
E)   conductive hearing loss.

Question 17

Frequency is usually measured in units called

Accepted Answer

A)   mm.
B)   Hz.
C)   mL.
D)   dB.
E)   arcmin.

Question 18

What would happen if you did not have the stapedius and tensor tympani muscles?

Accepted Answer

A)   The vestibular canals would be permanently misaligned, resulting in hearing and equilibrium problems.
B)   The cochlea would not be secured in place and might move around.
C)   The ear canal would stay permanently open.
D)   Loud sounds would cause the ossicles to move too much, potentially causing damage to the inner ear.
E)   The ear canal would stay permanently closed.

Question 19

How is the harmonic spectrum of sound analogous to the color spectrum of light?

Accepted Answer

A)   We have sound-opponent cells in the auditory nerve just like we have color-opponent cells in the optic nerve.
B)   Both sound and light perception depend on sensing small molecules in the air, which vibrate at different frequencies.
C)   Both sound and light depend on photoreceptors for sensation and perception.
D)   Both sounds and lights consist of many different wavelengths that are encoded independently.
E)   Both sound and light are processed by the anterior horn of the dorsolateral prefrontal cortex.

Question 20

The primary auditory cortex (A1)  is organized in a _______ manner.

Accepted Answer

A)   center-surround
B)   topographic
C)   tonotopic
D)   rows-and-columns
E)   retinotopic

Exam 9: Hearing: Physiology and Psychoacoustics

The first area within the temporal lobes that is responsible for processing acoustic information is called the

Correct AnswerverifiedShow Answer

Hearing loss that is caused by problems with bones of the middle ear is called

Correct AnswerverifiedShow Answer

Describe the pathway of auditory nerve signals from the auditory nerve to primary auditory cortex.

Correct AnswerverifiedAuditory nerve fibers leaving the cochle...View AnswerShow Answer

A(n) _______ is a map plotting the responses of a neuron or fiber to sine waves with varying frequencies at the lowest intensity that will give rise to a response.

Correct AnswerverifiedShow Answer

One of the roles of the ossicles is to

Correct AnswerverifiedShow Answer

How are sound waves described, and what psychological aspects do they correspond to?

Correct AnswerverifiedSound waves are described and measured i...View AnswerShow Answer

The phenomenon known as two-tone suppression occurs when

Correct AnswerverifiedShow Answer

The primary auditory cortex (A1) is organized in a _______ manner.

Correct AnswerverifiedShow Answer

Why is it important for the basilar membrane to move?

Correct AnswerverifiedShow Answer

Sounds are first collected from the environment by the

Correct AnswerverifiedShow Answer

Refer to the graph. Which frequency and volume combination would be most likely to suppress the firing of the 8000-Hz auditory nerve fiber?

Correct AnswerverifiedShow Answer

Which instrument can create a noise with the lowest fundamental frequency?

Correct AnswerverifiedShow Answer

Frequency is usually measured in units called

Correct AnswerverifiedShow Answer

Refer to the figure. The bottom portion of the figure depicts the simplest kind of sound, known as a

Correct AnswerverifiedShow Answer

Which of the following is not a cause of hearing loss?

Correct AnswerverifiedShow Answer

Refer to the graph. When you play piano, why might you have to hit the keys harder with your left hand (lower notes) than your right hand (higher notes) to make them sound the same volume?

Correct AnswerverifiedShow Answer

The tympanic, vestibular, and middle canals are filled with which substance?

Correct AnswerverifiedShow Answer

The _______ refers to a graph that plots the firing rate of an auditory nerve fiber in response to a sound of a constant frequency at increasing intensities.

Correct AnswerverifiedShow Answer

How is the harmonic spectrum of sound analogous to the color spectrum of light?

Correct AnswerverifiedShow Answer

What would happen if you did not have the stapedius and tensor tympani muscles?

Correct AnswerverifiedShow Answer

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Auditory nerve fibers leaving the cochle...
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Sound waves are described and measured i...
View Answer

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