AP PSYCHOLOGY

Detailed explanation-1: -Volley theory states that groups of neurons of the auditory system respond to a sound by firing action potentials slightly out of phase with one another so that when combined, a greater frequency of sound can be encoded and sent to the brain to be analyzed.

Detailed explanation-2: -Low-frequency sounds are perceived as lower pitch due to activation of cilia deep in the cochlea, whereas high-frequency sounds are higher pitched and processed closer to the base of the cochlea.

Detailed explanation-3: -The place theory of pitch perception suggests that different portions of the basilar membrane are sensitive to sounds of different frequencies. More specifically, the base of the basilar membrane responds best to high frequencies and the tip of the basilar membrane responds best to low frequencies.

Detailed explanation-4: -The frequency theory of hearing proposes that whatever the pitch of a sound wave, nerve impulses of a corresponding frequency will be sent to the auditory nerve. For example, a tone measuring 600 hertz will be transduced into 600 nerve impulses a second.

Detailed explanation-5: -Frequency theory: The rate of nerve impulses traveling up the auditory nerve matches the frequency of a tone; enabling us to sense its pitch. Best explains how we sense low pitches.