How are high- and low-frequency sounds discriminated?
A) low frequencies producing stronger vibrations
B) high frequencies producing larger action potentials
C) the middle ear bones vibrating more vigorously for low frequencies
D) low frequencies deflecting the basilar membrane at a greater distance from the oval window

Question

Quizplus · Accepted Answer

Low frequencies deflect the basilar membrane at a greater distance from the oval window, which causes the hair cells on the membrane to move in a specific pattern. This pattern is then detected by the brain as a low-frequency sound. Conversely, high frequencies result in more deflection closer to the oval window, causing a different pattern of hair cell movement, which is interpreted as high-frequency sound.

How Are High- and Low-Frequency Sounds Discriminated