Question 1

The dynamic range of loudness perception spans&#10;A) 30 dB&#10;B) 60 dB&#10;C) 120 dB&#10;D) 240 dB

Accepted Answer

The dynamic range of loudness perception spans 120 dB, which means that the softest sound we can hear is around 0 dB and the loudest sound we can tolerate is around 120 dB.

Question 2

Which one of the following is not associated with conductive hearing loss?&#10;A) Damage to the tympanic membrane&#10;B) Damage to the ossicles&#10;C) Auditory thresholds are raised by up to 40-50 dB&#10;D) Cochlear damage

Accepted Answer

Conductive hearing loss is caused by issues in the outer or middle ear that prevent sound waves from reaching the inner ear where they are turned into electrical signals that the brain can interpret. Damage to the tympanic membrane or ossicles can disrupt the transmission of sound vibrations, leading to a conductive hearing loss. This type of hearing loss typically results in auditory thresholds being raised by up to 40-50 dB. However, cochlear damage affects the inner ear and can result in sensorineural hearing loss, which is not considered a form of conductive hearing loss.

Question 3

Which one of the following does not cause cochlear damage?&#10;A) Ear wax&#10;B) Exposure to intense sounds&#10;C) Infection&#10;D) Presbyacusis&#10;E) Allergy

Accepted Answer

Ear wax does not cause cochlear damage. It may cause temporary hearing loss or blockage of the ear canal, but it is not associated with cochlear damage.

Question 4

Which one of the following is not associated with cochlear damage?&#10;A) Broader frequency tuning&#10;B) Threshold elevation at all sound frequencies&#10;C) Loudness recruitment&#10;D) Impaired ability to segregate a speech signal from background noise.

Accepted Answer

Threshold elevation at all sound frequencies is not specifically associated with cochlear damage; it can occur due to other types of hearing loss as well. Cochlear damage typically affects specific frequencies.

Question 5

Which one of the following is the name for the pitch heard in a complex wave due to beats?&#10;A) Missing fundamental&#10;B) Fundamental frequency&#10;C) Residue pitch&#10;D) Notched noise

Accepted Answer

The name for the pitch heard in a complex wave due to beats is the residue pitch. This is the perceived pitch that remains after the two original frequencies have been removed by the process of interaction between them known as beats. The missing fundamental refers to the perception of a lower frequency that is not present in the sound but is inferred from its harmonics. The fundamental frequency is the lowest frequency component of a complex wave that determines its pitch. Notched noise is a type of noise that is characterized by the removal of a specific frequency range.

Question 6

The beat frequency in a complex sound corresponds to&#10;A) The place of maximum excitation on the basilar membrane&#10;B) The sound's intensity&#10;C) The sound's resolved harmonics&#10;D) The sound's fundamental frequency

Accepted Answer

The beat frequency is the difference in frequency between two sounds. It is not directly related to the intensity or resolved harmonics of the sound. However, it is related to the fundamental frequency, which is the lowest frequency of the complex sound.

Question 7

Which researcher first proposed the duplex theory of sound localisation?&#10;A) Georg vonBekesy&#10;B) Lord Rayleigh&#10;C) Lloyd Jefress&#10;D) Georg Ohm

Accepted Answer

Lord Rayleigh, also known as John William Strutt, first proposed the duplex theory of sound localization, which explains how humans can determine the direction of a sound source.

Question 8

Which of the following statements is not true? Wernicke's aphasia:&#10;A) Is the name given to disordered speech perception&#10;B) Is caused by damage in the posterior part of the left temporal lobe&#10;C) Is not associated with marked sensory impairments in hearing&#10;D) Offers evidence for a special speech mode of auditory processing

Accepted Answer

The answer of Which of the following statements is not...

Question 9

If a person reports hearing problems in noisy environments but standard tests do not reveal sensory deficits which one of the following conditions are they likely to have?&#10;A) Tinnitus&#10;B) Damage to the tympanic membrane&#10;C) Otosclerosis&#10;D) Central auditory processing disorder (CAPD)

Accepted Answer

Central auditory processing disorder (CAPD) is a condition where the brain has difficulty processing auditory information, making it hard to understand speech in noisy environments. Standard tests may not reveal any sensory deficits, as the problem is in the processing of sound rather than the ability to hear it. Tinnitus is a ringing or buzzing in the ears, damage to the tympanic membrane would result in a conductive hearing loss, and otosclerosis is a type of hearing loss caused by abnormal bone growth in the middle ear.

Question 10

The grouping of parts of a complex acoustic signal into discrete auditory objects is called&#10;A) Auditory streaming&#10;B) Speech mode&#10;C) Precedence effect&#10;D) Categorical perception

Accepted Answer

Auditory streaming refers to the process by which the auditory system groups together sounds that have similar acoustic properties, leading to the perception of discrete auditory objects. This can be demonstrated through the phenomenon of "auditory streaming," where a complex sound pattern can be heard as two distinct melodies when presented in a certain way. The other options (B, C, and D) are related to other phenomena in auditory perception, but are not directly related to the grouping of parts of a complex acoustic signal into discrete auditory objects.

Question 11

Which structure vibrates to create speech sounds?&#10;A) Tongue&#10;B) Vocal chords&#10;C) Lips&#10;D) Cheeks

Accepted Answer

The answer of Which structure vibrates to create speech sounds?&#10;A)...

Question 12

A sound signal containing a narrow range of frequencies with random phase and amplitude is called:&#10;A) Band-width noise&#10;B) Critical-band noise&#10;C) Broad-band noise&#10;D) Band-pass noise

Accepted Answer

The answer of A sound signal containing a narrow range...

Question 13

At most frequencies The JND for pitch discrimination is below&#10;A) 1%&#10;B) 5%&#10;C) 10%&#10;D) 15%

Accepted Answer

The answer of At most frequencies The JND for pitch...

Question 14

The most important source of information about pitch in complex sounds is&#10;A) Timing of responses in the auditory nerve&#10;B) Place of maximum excitation on the basilar membrane&#10;C) ITDs&#10;D) ILDs

Accepted Answer

The answer of The most important source of information about...

Question 15

A sound having an azimuth angle of 0&#176; and an elevation of 90&#176; is:&#10;A) Directly in front of the head.&#10;B) Directly behind the head&#10;C) Directly above the head&#10;D) Directly opposite the left ear

Accepted Answer

The answer of A sound having an azimuth angle of...

Question 16

Which one of the following statements is not true for localisation in the vertical plane?&#10;A) The cue for vertical localisation is binaural.&#10;B) The cue is based on the interaction of sound with the pinna&#10;C) The effect of the pinna is restricted to frequencies above 6 kHz&#10;D) The filtering effect of the pinna depends on the direction of the sound source

Accepted Answer

The answer of Which one of the following statements is...

Question 17

Thunder is heard as a sharp crack from nearby but a low rumble from a far distance because&#10;A) Lower sound frequencies travel through the air faster than higher sound frequencies.&#10;B) Sound intensity decreases by a factor of four each time distance doubles.&#10;C) Air molecules absorb energy at higher sound frequencies more than at lower frequencies.&#10;D) Reverberation decreases as source distance increases.

Accepted Answer

The answer of Thunder is heard as a sharp crack...

Question 18

The idea that speech processing is qualitatively different from the processing of non-speech sounds in partly based on&#10;A) The frequency content of speech sounds.&#10;B) Evidence for the existence of phonemes&#10;C) Evidence for top-down processing of speech.&#10;D) Evidence for categorical perception in speech

Accepted Answer

The answer of The idea that speech processing is qualitatively...

Question 19

Cochlear implants have been available since:&#10;A) 1920's&#10;B) 1940's&#10;C) 1960's&#10;D) 1980's

Accepted Answer

The answer of Cochlear implants have been available since:&#10;A) 1920's&#10;B)...

Deck 5: Perception of Sound