The volley principle is particularly relevant to the ________ theory.

A) dissociation
B) place
C) gate-control
D) frequency

The volley principle refers to a mechanism in which neurons can fire at high frequencies that are greater than their maximum firing rate by synchronizing their firing with other neurons in a population. This mechanism is particularly relevant to the frequency theory of pitch perception, which posits that the pitch of a sound is determined by the frequency of neural impulses traveling along the auditory nerve. According to this theory, neural firing patterns can encode sound frequencies up to around 4,000 Hz, beyond which the place theory becomes more dominant. The dissociation theory proposes that pitch perception relies on two separate neural codes, one based on place and the other on timing, but the volley principle is not as central to this theory. The gate-control theory explains how pain signals are modulated in the spinal cord, and does not concern itself with the perception of pitch.