Christopher A. Shera, Ph.D.

Harvard Medical School

Professor of Otolaryngology

Massachusetts Eye and Ear

Senior Scientist

Research Summary

Research Area Affiliations

Research Summary

Dr. Shera’s primary research interests include cochlear and middle ear mechanics and modeling, mechanisms of cochlear nonlinearity and amplification, otoacoustic emissions, comparative cochlear mechanics, and signal processing and acoustics. Through a combination of physiological measurements and theoretical modeling, Dr. Shera aims to understand the active, nonlinear signal processing performed by the inner ear while developing the power and precision of noninvasive probes of hearing function.

Select Publications

Evoked otoacoustic emissions arise by two fundamentally different mechanisms: A taxonomy for mammalian otoacoustic emissions. Shera CA, Guinan JJ (1999) J Acoust Soc Am 105:782−798

Revised estimates of human cochlear tuning from otoacoustic and behavioral measurements. Shera CA, Guinan JJ, Oxenham AJ (2002) Proc Nat Acad Sci USA 99:3318−3323

Mammalian spontaneous otoacoustic emissions are amplitude-stabilized cochlear standing waves. Shera CA (2003) J Acoust Soc Am 114:244−262

Laser amplification with a twist: Traveling-wave propagation and gain functions from throughout the cochlea.  Shera CA (2007) J Acoust Soc Am 122:2738−2758

Otoacoustic estimation of cochlear tuning: Validation in the chinchilla. Shera CA, Guinan JJ, Oxenham AJ (2010) J Assoc Res Otolaryngol 11:343−365

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