The human brain perceives the intensity (i.e., loudness) of sound waves:

The human brain perceives the intensity (i.e., loudness) of sound waves:

	(A) by detecting the frequency of action potentials arriving at the auditory cortex; with higher frequencies of action potentials correlating with higher intensity sounds.
	(B) by detecting the frequency of action potentials arriving at the auditory cortex; with higher frequencies of action potentials correlating with lower intensity sounds.
	(C) by detecting the specific location along the organ of Corti stimulated by sound, leading to the generation of action potentials that ultimately arrive at the auditory cortex. Higher intensity sounds evoke action potentials in auditory fibers stimulated by inner hair cells closer to the base of the cochlea, and lower intensity sounds evoke action potentials in auditory fibers stimulated by inner hair cells closer to the apex of the cochlea.
	(D) by detecting the specific location along the organ of Corti stimulated by sound, leading to the generation of action potentials that ultimately arrive at the auditory cortex. Higher intensity sounds evoke action potentials in auditory fibers stimulated by inner hair cells closer to the apex of the cochlea, and lower intensity sounds evoke action potentials in auditory fibers stimulated by inner hair cells closer to the base of the cochlea.

Checking your answer...

Physiology Test Question