A quantitative model is presented that describes the formation of auditory brainstem responses (ABRs) to tone pulses, clicks, and rising chirps as a function of stimulation level. The model computes the convolution of the instantaneous discharge rates using the “humanized” nonlinear auditory-nerve model of Zilany and Bruce [J. Acoust. Soc. Am. 122, 402–417 (2007)] and an empirically derived unitary response function which is assumed to reflect contributions from different cell populations within the auditory brainstem, recorded at a given pair of electrodes on the scalp. It is shown that the model accounts for the decrease of tone-pulse evoked wave-V latency with frequency but underestimates the level dependency of the tone-pulse as well as click-evoked latency values. Furthermore, the model correctly predicts the nonlinear wave-V amplitude behavior in response to the chirp stimulation both as a function of chirp sweeping rate and level. Overall, the results support the hypothesis that the pattern of ABR generation is strongly affected by the nonlinear and dispersive processes in the cochlea.
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May 04 2012
Modeling auditory evoked brainstem responses to transient stimuli
Filip Munch Rønne;
Filip Munch Rønne
a)
Centre for Applied Hearing Research, Acoustic Technology, Department of Electrical Engineering,
Technical University of Denmark
, DK-2800 Kgs. Lyngby, Denmark
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Torsten Dau;
Torsten Dau
Centre for Applied Hearing Research, Acoustic Technology, Department of Electrical Engineering,
Technical University of Denmark
, DK-2800 Kgs. Lyngby, Denmark
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James Harte;
James Harte
Institute of Digital Healthcare, WMG, University of Warwick
, Coventry, CV4 7AL, United Kingdom
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Claus Elberling
Claus Elberling
William Demant Holding A/S
, Kongebakken 9, DK-2765 Smørum, Denmark
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a)
Author to whom correspondence should be addressed. Electronic mail: fro@elektro.dtu.dk
J. Acoust. Soc. Am. 131, 3903–3913 (2012)
Article history
Received:
October 26 2011
Accepted:
February 21 2012
Citation
Filip Munch Rønne, Torsten Dau, James Harte, Claus Elberling; Modeling auditory evoked brainstem responses to transient stimuli. J. Acoust. Soc. Am. 1 May 2012; 131 (5): 3903–3913. https://doi.org/10.1121/1.3699171
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