TY - GEN
T1 - Modeling two-tone suppression and distortion product on basilar membrane
AU - Murakami, Yasuki
AU - Ishimitsu, Shunsuke
N1 - Publisher Copyright:
© 2015 AIP Publishing LLC.
PY - 2015/12/31
Y1 - 2015/12/31
N2 - This paper reveals mechanisms of two-tone suppression (2TS) and distortion product (DP) on the basilar membrane (BM) using a model. Computational simulation is conducted with an active and nonlinear transmission line model including a nonlinear outer hair cell model that shows compressive property in two dimensionally where two tones are input. To evaluate the cochlear model, over all responses of BM model are used. For simultaneous input pairs, the response is suppressed by a stronger tone, or distorted where levels of a pair are equaled. Cubic distortion produced by a simple nonlinear feedback system including the OHC model appears similar to DPs in the cochlear model. These results suggest that two dimensional property of the OHC and its feedback generate 2TS and DPs. This further suggests the importance of the overall responses for investigating mechanisms of cochlear nonlinearities without fluid coupling in the cochlea.
AB - This paper reveals mechanisms of two-tone suppression (2TS) and distortion product (DP) on the basilar membrane (BM) using a model. Computational simulation is conducted with an active and nonlinear transmission line model including a nonlinear outer hair cell model that shows compressive property in two dimensionally where two tones are input. To evaluate the cochlear model, over all responses of BM model are used. For simultaneous input pairs, the response is suppressed by a stronger tone, or distorted where levels of a pair are equaled. Cubic distortion produced by a simple nonlinear feedback system including the OHC model appears similar to DPs in the cochlear model. These results suggest that two dimensional property of the OHC and its feedback generate 2TS and DPs. This further suggests the importance of the overall responses for investigating mechanisms of cochlear nonlinearities without fluid coupling in the cochlea.
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U2 - 10.1063/1.4939419
DO - 10.1063/1.4939419
M3 - Conference contribution
AN - SCOPUS:84984581054
T3 - AIP Conference Proceedings
BT - Mechanics of Hearing
A2 - Corey, David P.
A2 - Karavitaki, K. Domenica
PB - American Institute of Physics Inc.
T2 - 12th International Workshop on the Mechanics of Hearing: Protein to Perception
Y2 - 23 June 2014 through 29 June 2014
ER -