Work

A lumped-element model of the chinchilla middle ear

Year: 2019

Type: article

Abstract: An air-conduction circuit model was developed for the chinchilla middle ear and cochlea. The lumped-element model is based on the classic Zwislocki model of the same structures in human. Model parameters were fit to various measurements of chinchilla middle-ear transfer functions and impedances, using a combination of error-minimization-driven computer-automated and manual fitting methods. The measurements used to fit the model comprise a newer, more-extensive data set than previously used, and include measurements of stapes velocity and inner-ear sound pressure within the vestibule and the scala tympani near the round window. The model is in agreement with studies of the effects of middle-ear cavity holes in experiments that require access to the middle-ear air space. The structure of the model allows easy addition of other sources of auditory stimulation, e.g., the multiple sources of bone-conducted sound-the long-term goal for the model's development-and mechanical stimulation of the ossicles and round window.

Source: The Journal of the Acoustical Society of America

DOI: 10.1121/1.5094897

Authors: Peter Bowers, John J. Rosowski

Institution: Massachusetts Eye and Ear Infirmary

Language: English

Topic: Hearing, Cochlea, Tinnitus, Genetics

Subfield: Sensory Systems

Field: Neuroscience

Domain: Life Sciences

Open Access status: green

Funders: National Institutes of Health, National Institute on Deafness and Other Communication Disorders

Awards: Structure and Function Relations in Middle-Ears, G4601631084, Use of new measurements to develop a model of bone conduction in animal and human, Training for Speech and Hearing Sciences