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Revised estimates of human cochlear tuning from otoacoustic and behavioral measurements

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Shera, Christopher A., Guinan, John J., Oxenham, Andrew J.·2002·Proceedings of the National Academy of Sciences

Abstract

We develop an objective, noninvasive method for determining the frequency selectivity of cochlear tuning at low and moderate sound levels. Applicable in humans at frequencies of 1 kHz and above, the method is based on the measurement of stimulus-frequency otoacoustic emissions and, unlike previous noninvasive physiological methods, does not depend on the frequency selectivity of masking or suppression. The otoacoustic measurements indicate that at low sound levels human cochlear tuning is more than twice as sharp as implied by standard behavioral studies and has a different dependence on frequency. New behavioral measurements designed to minimize the influence of nonlinear effects such as suppression agree with the emission-based values. A comparison of cochlear tuning in cat, guinea pig, and human indicates that, contrary to common belief, tuning in the human cochlea is considerably sharper than that found in the other mammals. The sharper tuning may facilitate human speech communication.

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Metadata

Authors
Shera, C. A., Guinan, J. J., & Oxenham, A. J.
Venue
Proceedings of the National Academy of Sciences
Published
2002-02-26
Volume
99
Issue
5
Pages
3318-3323
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2109993234
Cited by
484
References
20
FWCI
7.63
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Revised estimates of human cochlear tuning from otoacoustic and behavioral measurements. https://app.cochat.ai/papers/10.1073/pnas.032675099
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Shera, C. A., Guinan, J. J., & Oxenham, A. J. (2002). Revised estimates of human cochlear tuning from otoacoustic and behavioral measurements. Proceedings of the National Academy of Sciences. https://doi.org/10.1073/pnas.032675099

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