Work

Minima in cubic distortion-product otoacoustic emission input/output functions due to distributed primary sources

Year: 2024

Type: article

Abstract: Input/output (I/O) functions of distortion-product otoacoustic emissions (DPOAEs) may contain sudden amplitude minima (notches) although they are measured in animals with a negligible reflection source. We measured DPOAEs in humans and analyzed the data by time-frequency filtering to decompose the nonlinear-distortion and coherent-reflection components of DPOAE. The presented I/O functions of the nonlinear-distortion component contain notches. We suggest that because these notches are present only in the nonlinear-distortion component, they result from destructive interference between distortion-product wavelets coming from the primary generation region. Simulations conducted with a nonlinear cochlear model showed qualitative similarities with the presented experimental results.

Source: JASA Express Letters

DOI: 10.1121/10.0028386

Authors: Václav Vencovský, Aleš Vetešník

Institution: Czech Technical University in Prague

Language: English

Topic: Hearing, Cochlea, Tinnitus, Genetics

Subfield: Sensory Systems

Field: Neuroscience

Domain: Life Sciences

Open Access status: diamond

Funder: Grantová Agentura České Republiky

Award: Otoacoustic emissions in normal cochlea and cochlea with endolymphatic hydrops: modeling and experiments