A Three-Degree-of-Freedom Active Micromechanical Model of the Cochlear Partition
The earliest cochlear models were passive and macromechanical (e.g., Peterson and Bogert, 1950; Ranke, 1950; Zwislocki, 1950). In these models, the properties of the cochlear partition were lumped and represented by a single value of mass, stiffness, and damping for each location on the partition. Hence, we refer to these models as single degree-of-freedom (1-DOF) models. The results of calculations based on these models were in good agreement with the only measurements available at the time, those of von Békésy (1960), who worked with cochleas taken from cadavers.
KeywordsHair Cell Outer Hair Cell Basilar Membrane Otoacoustic Emission Auditory Nerve Fiber
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- Bekesy, G. von (1960) Experiments in Hearing, McGraw Hill, New York.Google Scholar
- Bialek, W. and Witt, H. (1984) Quantum limits to oscillator stability: theory and experiments on acoustic emissions from the human ear. Phys. Lett. 10A, 173–177.Google Scholar
- Evans, E.F. and Wilson, J.P. (1973) The frequency selectivity of the cochlea. In: Basic Mechanisms in Hearing (Ed: Moller, A.R.) Academic Press, New York.Google Scholar
- Kiang, N.Y.S., Watanabe, T., Thomas, E.C., and Clark, L.F. (1965) Discharge patterns of single fibres in the cat’s auditory nerve. In: Res. Monogr. M.I.T. 35, M.I.T. Press, Cambridge, MA.Google Scholar
- Kim, D.O. and Molnar, C.E. (1975) Cochlear Mechanics: Measurements and Models. In: The Nervous System, Vol. 3: Human Communication and Its Disorders (Editor-in-Chief: Tower, D.B.) Raven Press, New York.Google Scholar
- Kim, D.O., Neely, S.T., Molnar, C.E., and Matthews, J.W. (1980) An active cochlear model with negative damping in the partition: Comparison with Rhode’s ante-and post-mortem observations. In: Psychophysical, Physiological and Behavioural Studies in Hearing (Eds: van den Brink, G. and Bilsen, F.A.) Delft University Press, The Netherlands.Google Scholar
- Neely, S.T. (1986) Micromechanics of the cochlear partition. In: Peripheral Auditory Mechanisms (Eds: Allen, J.B., Hall, J.L., Hubbard, A., Neely, S.T., and Tubis, A.) Springer-Verlag, New York, pp. 137–146.Google Scholar
- Zwislocki, J.J. (1974) A possible neuro-mechanical sound analysis in the cochlea. Acustica 31, 354–359.Google Scholar