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Re: mechanical cochlear model

Hello everyone,

Rather a large scale model, we built a one-to-one scale model of the 
human cochlea using silicone etching techniques. The orthotropic 
basilar membrane was put into a chamber with fluid on both sides. 
We show that in this passive model, there is a traveling wave. 
The reference is:

Wittbrodt, M.J., Steele, C.R., Puria, S. (2006), “Developing a physical model of the human cochlea using micro-fabricated methods.” Audiology-Neurotology 11(2): 104-12.

Karl Grosh and his student have also built a physical model of the cochlea.
The reference for that is:

White RD, Grosh K: Microengineered hydromechanical cochlear model. Proc Natl Acad Sci USA 2005; 102: 1296-1301.

On Mar 2, 2010, at 10:22 PM, Lina Reiss wrote:

There is a mechanical model similar to what you describe at the University of Utah:

They cite the following paper for the passive version of the model:
R. Keolian (1991), J. Acoust. Soc. Am. 89

Hope this helps!


Sunil Puria, PhD

Stanford University

Depts. of ME & OHNS

OtoBiomechanics Group


5th International Middle Ear Mechanics in Research and Otology meeting: http://memro2009.stanford.edu