The human brain perceives the frequency (i.e., pitch) of sound waves:

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Physiology Test Question

The human brain perceives the frequency (i.e., pitch) 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 frequency sounds.
	(B) by detecting the frequency of action potentials arriving at the auditory cortex; with higher frequencies of action potentials correlating with lower frequency 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 frequency sounds evoke action potentials in auditory fibers stimulated by inner hair cells closer to the base of the cochlea, and lower frequency 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 frequency sounds evoke action potentials in auditory fibers stimulated by inner hair cells closer to the apex of the cochlea, and lower frequency sounds evoke action potentials in auditory fibers stimulated by inner hair cells closer to the base of the cochlea.

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Posted: Wednesday, November 18, 2015
Last updated: Wednesday, November 18, 2015