A wave of cochlear bone deformation can underlie bone conduction and otoacoustic emissions
Tchumatchenko T, Reichenbach T (2015)
Publication Type: Conference contribution
Publication year: 2015
Journal
Publisher: American Institute of Physics Inc.
Book Volume: 1703
Conference Proceedings Title: AIP Conference Proceedings
Event location: Cape Sounio
ISBN: 9780735413504
DOI: 10.1063/1.4939373
Abstract
A sound signal is transmitted to the cochlea through vibration of the middle ear that induces a pressure difference across the cochlea's elastic basilar membrane. In an alternative pathway for transmission, the basilar membrane can also be deflected by vibration of the cochlear bone, without participation of the middle ear. This second pathway, termed bone conduction, is increasingly used in commercial applications, namely in bone-conduction headphones that deliver sound through vibration of the skull. The mechanism of this transmission, however, remains unclear. Here, we study a cochlear model in which the cochlear bone is deformable. We show that deformation of the cochlear bone, such as resulting from bone stimulation, elicits a wave on the basilar membrane and can hence explain bone conduction. Interestingly, stimulation of the basilar membrane can in turn elicit a wave of deformation of the cochlear bone. We show that this has implications for the propagation of otoacoustic emissions: these can emerge from the cochlea through waves of bone deformation.
Authors with CRIS profile
Involved external institutions
Max-Planck-Institut für Hirnforschung / Max Planck Institute for Brain Research
Germany (DE)
Imperial College London / The Imperial College of Science, Technology and Medicine
United Kingdom (GB)
Germany (DE)
Imperial College London / The Imperial College of Science, Technology and Medicine
United Kingdom (GB)
How to cite
APA:
Tchumatchenko, T., & Reichenbach, T. (2015). A wave of cochlear bone deformation can underlie bone conduction and otoacoustic emissions. In David P. Corey, K. Domenica Karavitaki (Eds.), AIP Conference Proceedings. Cape Sounio, GR: American Institute of Physics Inc..
MLA:
Tchumatchenko, Tatjana, and Tobias Reichenbach. "A wave of cochlear bone deformation can underlie bone conduction and otoacoustic emissions." Proceedings of the 12th International Workshop on the Mechanics of Hearing: Protein to Perception, Cape Sounio Ed. David P. Corey, K. Domenica Karavitaki, American Institute of Physics Inc., 2015.
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