PSYCH 2E03 Lecture Notes - Otoacoustic Emission, Tectorial Membrane, Basilar Membrane
12 Jun 2013
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Document Summary
Dynamic interactions between the inner and outer hair cells fine-tuning of ihc. Differences between the inner and outer hair cells inner hair cell: Do not contract on electrical stimulation or vibration of basilar membrane the primary hair cell for hearing. Contract on electrical stimulation or vibration of basilar membrane fine-tune the inner hair cells for hearing. Both the hair cells have tip links. Effect of outer hair cell (ohc) damage on frequency tuning curve of inner hair cell. Sharp frequency band-width: the cochlear filters cochlea has a bank of filters each with specific band-width owing to: Ohc that selectively enhance the activity of particular ihc while relatively suppressing their neighbouring segments. This is akin to lateral inhibition between ihc. Too much of, too good increased prestin is harmful too long-term usage of high dose of salicylates: increased prestin expression. Extremely low amplitude sounds produced due to contractions of the ohc.
