Exam 3 Part 2

Question 1

Area of the cerebral cortex responsible for processing auditory information

Answer 1

Auditory cortex

Question 2

Area in left temporal lobe of the cerebral cortex that is important for comprehension of speech

Answer 2

Wernicke’s area

Question 3

Where is the olivocochlear bundle located?

Answer 3

Superior olivary complex to organ of corti

Question 4

Stimulates the contralateral cochlea and affects the inner hair cells of the contralateral cochlea

Answer 4

Crossed olivocochlear bundle

Question 5

Stimulates the ipsilateral outer hair cells of the ipsilateral cochlea

Answer 5

Uncrossed olivocochlear bundle

Question 6

Pathway that prevents some afferent signals from reaching the cortex and tune out unwanted sounds or noise

Answer 6

Efferent auditory pathway

Question 7

The science that deals with the perception of sound

Answer 7

Psychoacoustics

Question 8

What does psychoacoustics study the relationships of?

Answer 8

Acoustic/physical characteristics of sound and the perceptual/psychological characteristics

Question 9

What are some examples of perceptual/psychological characteristics of sound?

Answer 9

Pitch, loudness, perceived duration, timbre

Question 10

What are some examples of acoustic/physical characteristics of sound?

Answer 10

Frequency, intensity, duration, spectral complexity

Question 11

Measured the same by different individuals

Answer 11

Acoustic/physical characteristics

Question 12

Perceived differently from one individual to another (subjective)

Answer 12

Perceptual/psychological characteristics

Question 13

Frequency goes with ___

Answer 13

pitch

Question 14

Intensity goes with ___

Answer 14

Loudness

Question 15

Duration goes with ____

Answer 15

Perceived duration

Question 16

Spectral complexity goes with ____

Answer 16

Timbre

Question 17

Anything that is capable of eliciting a response

Answer 17

Stimuli

Question 18

Lowest level of a stimulus that causes a reaction

Answer 18

Threshold

Question 19

Lowest sound intensity that can be heard under specific listening conditions

Answer 19

Hearing threshold

Question 20

What is the human range intensity?

Answer 20

20-20,000 Hz

Question 21

At what frequencies are we most sensitive to?

Answer 21

500-5,000 Hz

Question 22

Graph of the auditory sensitivity across a range of frequencies

Answer 22

Human audibility curve

Question 23

As frequency increases, what happens to intensity sensitivity?

Answer 23

Decreases

Question 24

the shortest duration for a signal that a normal hearing listener can detect and perceive tones

Answer 24

10 msec

Question 25

Sensitivity improves as the duration of a stimulus increases from 10 msec to about 300 msec. No apparent effect beyond.

Answer 25

Stimulus duration

Question 26

What is comfortable stimulus intensity range?

Answer 26

From 10 dB below a comfortable listening level (~ 40 dB SPL) to 10 dB below the uncomfortable loudness level (~ 90 dB SPL)

Question 27

What are some types of stimulus presentations?

Answer 27

headphones, speakers

Question 28

Why do we use earphones?

Answer 28

Easier to test right and left ears individually

Question 29

Lowest level of sound heard when measuring auditory sensitivity through earphones

Answer 29

Minimal audible pressure

Question 30

Device used to test one's hearing

Answer 30

Audiometer