How Tonotopy Shapes Our Perception of Sound.
Within the human cochlea, sound frequencies activate distinct regions of the basilar membrane—a phenomenon known as tonotopy. High-frequency sounds resonate near the rigid base, while low frequencies stimulate the flexible apex.
As these vibrations propagate, hair cells in the organ of Corti bend against the tectorial membrane, triggering neurotransmitter release. This translates mechanical vibrations into neural signals, which the auditory nerve carries to the brain.
Our perception of the auditory world thus relies on this precise physiological mapping, highlighting the remarkable precision underlying sensory processing.
To deepen your understanding of human behavior and perception, consider reading Living to the Power of Two:
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