Physiological evidence for auditory modulation filterbanks: Cortical responses to concurrent modulations

Juanjuan Xiang; David Poeppel; Jonathan Z. Simon

doi:10.1121/1.4769400

Physiological evidence for auditory modulation filterbanks: Cortical responses to concurrent modulations

Juanjuan Xiang, David Poeppel, Jonathan Z. Simon

Psychology

Research output: Contribution to journal › Article › peer-review

Abstract

Modern psychophysical models of auditory modulation processing suggest that concurrent auditory features with syllabic (∼5 Hz) and phonemic rates (∼20 Hz) are processed by different modulation filterbank elements, whereas features at similar modulation rates are processed together by a single element. The neurophysiology of concurrent modulation processing at speech-relevant rates is here investigated using magnetoencephalography. Results demonstrate expected neural responses to stimulus modulation frequencies; nonlinear interaction frequencies are also present, but, critically, only for nearby rates, analogous to "beating" in a cochlear filter. This provides direct physiological evidence for modulation filterbanks, allowing separate processing of concurrent syllabic and phonemic modulations.

Original language	English (US)
Pages (from-to)	EL7-EL12
Journal	Journal of the Acoustical Society of America
Volume	133
Issue number	1
DOIs	https://doi.org/10.1121/1.4769400
State	Published - Jan 2013

ASJC Scopus subject areas

Arts and Humanities (miscellaneous)
Acoustics and Ultrasonics

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10.1121/1.4769400

Cite this

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abstract = "Modern psychophysical models of auditory modulation processing suggest that concurrent auditory features with syllabic (∼5 Hz) and phonemic rates (∼20 Hz) are processed by different modulation filterbank elements, whereas features at similar modulation rates are processed together by a single element. The neurophysiology of concurrent modulation processing at speech-relevant rates is here investigated using magnetoencephalography. Results demonstrate expected neural responses to stimulus modulation frequencies; nonlinear interaction frequencies are also present, but, critically, only for nearby rates, analogous to {"}beating{"} in a cochlear filter. This provides direct physiological evidence for modulation filterbanks, allowing separate processing of concurrent syllabic and phonemic modulations.",

author = "Juanjuan Xiang and David Poeppel and Simon, {Jonathan Z.}",

note = "Funding Information: Support has been provided by the National Institute for Deafness and Other Communication Disorders (NIDCD) by NIH grants R01 DC 005660 and R01 DC 008342. We thank Mounya Elhilali and Nai Ding for discussions and Jeff Walker for excellent technical support.",

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AU - Simon, Jonathan Z.

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Physiological evidence for auditory modulation filterbanks: Cortical responses to concurrent modulations

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