Can a static nonlinearity account for the dynamics of otoacoustic emission suppression?
Verhulst, Sarah, Shera, Christopher A., Harte, James M. and Dau, Torsten (2011) Can a static nonlinearity account for the dynamics of otoacoustic emission suppression? In: 11th International Mechanics of Hearing Workshop, Williamstown, MA, U.S.A., Jul 16-22, 2011. Published in: What Fire is in Mine Ears: Progress in Auditory Biomechanics, Proceedings of the 11th International Mechanics of Hearing Workshop, Vol.1403 pp. 257-263.Full text not available from this repository.
Official URL: http://dx.doi.org/10.1063/1.3658095
This study investigates whether time‐dependent compression mechanisms in the cochlea are necessary to explain dynamic properties of otoacoustic emissions (OAEs). Dynamic properties of click‐evoked OAEs (CEOAEs) have been observed in temporal suppression; the effect where the CEOAE magnitude is reduced when a click is presented less than 10 ms before the test click. A time‐domain model of the cochlea that represented the basilar membrane (BM) as a cascade of coupled bandpass filters was used to investigate the cochlear origin of temporal suppression in CEOAEs. The model, implemented with a time‐invariant nonlinearity, was able to simulate temporal suppression, but was unable to account for the exact time scale and magnitude of the effect. The results suggest that temporal overlap of BM impulse responses can account for suppression in CEOAEs, but that an additional time‐dependent cochlear gain mechanism may be needed to account the high suppression maxima at inter‐click intervals larger than zero.
|Item Type:||Conference Item (Paper)|
|Subjects:||Q Science > QP Physiology
R Medicine > RF Otorhinolaryngology
T Technology > TA Engineering (General). Civil engineering (General)
|Divisions:||Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)|
|Journal or Publication Title:||What Fire is in Mine Ears: Progress in Auditory Biomechanics, Proceedings of the 11th International Mechanics of Hearing Workshop|
|Publisher:||American Institute of Physics|
|Page Range:||pp. 257-263|
|Access rights to Published version:||Restricted or Subscription Access|
|Conference Paper Type:||Paper|
|Title of Event:||11th International Mechanics of Hearing Workshop|
|Type of Event:||Workshop|
|Location of Event:||Williamstown, MA, U.S.A.|
|Date(s) of Event:||Jul 16-22, 2011|
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