How do we hear the difference between two high-pitched sounds (such as 8000 Hz and 9000 Hz)?
A)The sounds produce activity in different parts of the basilar membrane.
B)The sounds produce different frequencies of action potentials in the auditory nerve.
C)The sounds produce different ratios of firing between the left and right ears.
D)The sounds produce different velocities of action potentials in the auditory nerve.

Question

How do we hear the difference between two high-pitched sounds (such as 8000 Hz and 9000 Hz)?​
A)The sounds produce activity in different parts of the basilar membrane.
B)​The sounds produce different frequencies of action potentials in the auditory nerve.
C)​The sounds produce different ratios of firing between the left and right ears.
D)​The sounds produce different velocities of action potentials in the auditory nerve.

Quizplus · Accepted Answer

Different frequencies of sound waves stimulate different parts of the basilar membrane, which results in the activation of different sets of hair cells. This information is then transmitted to the brain via the auditory nerve, where it is processed to detect differences in pitch.

How Do We Hear the Difference Between Two High-Pitched Sounds