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Short answer Outer hair cells physically contract at a rate corresponding to the characteristic resonant frequency at which they are situated on the basilar membrane, thereby mechanically amplifying the basilar membrane movement. Background After the exchange of thoughts in the comments I started to understand your question is basically what the mechanism is ...


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The wide, slack composition of the basilar membrane (BM) in the apex and the narrow, stiff characteristics at the base are among the factors that underlie the tuning of the BM. Slack, wide structures vibrate at low harmonic frequencies, stiff and narrow structures at high frequencies, just like the strings of a guitar. The apex of the cochlea transduces low ...


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I think this is just a question of causality. Most cognitive neuroscience has traditionally been correlational. Using your example, when gamma power is higher, sensory perception is increased. But does gamma power cause higher sensory perception? That's what the researchers have really always wanted to know, but only now have methods like transcranial ...


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