Title: Otoacoustic Estimates of Cochlear Tuning: Test Predictions in Macaque
Authors: Shera, Christopher A
Bergevin, Christopher
Kalluri, Radha
Mc Laughlin, Myles
Michelet, Pascal
van der Heijden, Marcel
Joris, Philip
Issue Date: 2011
Publisher: American Institute of Physics
Series Title: AIP Conference Proceedings
Host Document: What Fire is in Mine Ears: Progress in Auditory Biomechanics pages:286-292
Conference: AIP Conference edition:1403
Abstract: Otoacoustic estimates of cochlear frequency selectivity suggest substantially sharper tuning
in humans. However, the logic and methodology underlying these estimates remain untested by
direct measurements in primates. We report measurements of frequency tuning in macaque monkeys,
Old-World primates phylogenetically closer to humans than the small laboratory animals often
taken as models of human hearing (e.g., cats, guinea pigs, and chinchillas). We find that measurements
of tuning obtained directly from individual nerve fibers and indirectly using otoacoustic emissions
both indicate that peripheral frequency selectivity in macaques is significantly sharper than in
small laboratory animals, matching that inferred for humans at high frequencies. Our results validate
the use of otoacoustic emissions for noninvasive measurement of cochlear tuning and corroborate
the finding of sharper tuning in humans.
ISBN: 978-0-7354-0975-0
Publication status: published
KU Leuven publication type: IHb
Appears in Collections:Laboratory for Neuro- and Psychofysiology
Laboratory for Auditive Neurophysiology

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