Audition

Question 0

Which of the following best describes a dogs hearing as compared to humans
A) they can detect higher frequency sound than humans
B) they can detect lower frequency sound than humans
C) they can detect higher amplitude sound than humans
D) they can detect lower amplitude sound than humans

Answer 0

A) which is why dog whistles work

Question 1

Which of the following would result from a longer basilar membrane?
A) hearing a smaller range of sounds
B) hearing a wider range of sounds
C) hearing fainter sound
D) hearing louder sounds

Answer 1

B) this is because the basilar membrane encodes different frequencies along its length

Question 2

What is the unit of measure for the amplitude, or loudness, of a sound?

Answer 2

Decibel

Question 3

What is the unit of measure for the frequency, or pitch, of sound?

Answer 3

Hertz

Question 4

What are the characteristics of a low pitch sound?

Answer 4

Low frequency
Long wavelength

Frequency is the inverse of wavelength

Question 5

Which of the following is the structure of the external ear that protrudes from the head?
A) ear canal
B) eardrum
C) semicircular canal
D) pinna
E) ossicles

Answer 5

D) Pinna

The pinna helps to funnel sound into the ear canal

Question 6

What is the name of the receptors that translate sound into neural impulses

Answer 6

Hair cells

Hair cells bend to respond to sound and fire action potentials

Question 7

These hair cells synapse with Unmyelinated, and therefore slower, axons

Answer 7

Outer hair cells

Question 8

What is the name we give to the organizational structure found in primary auditory cortex?

Answer 8

Tonotopic

Question 9

What are the three reliable cues for auditory localization?

Answer 9

Time arrival
Intensity differences
Pinna cues

Question 10

Name the structure responsible for comparing time and intensity differences in each ear

Answer 10

Superior olivary complex