Psychology / Psych 0425 · Atom · ~20 seconds
The Cochlea and Basilar Membrane
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The cochlea is the fluid-filled inner ear structure whose basilar membrane vibrates in response to sound.
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A high-frequency tone produces peak vibration near the cochlea's base and a low tone near its far end.
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The cochlea does not amplify. It separates frequencies, which is what makes pitch coding possible.