Abstract
In the normal cochlea, the physical dimensions of the inner hair cell itself largely determine the degree of localization of sensory excitation. That is, with a few notable exceptions, the discharge patterns evoked on a primary auditory-nerve fiber by a wide range of sounds, including speech syllables, can be satisfactorily accounted for using only the mechanical vibrations thought to exist at the location of the single hair cell with which the fiber synapses, and the transducing and synaptic mechanisms of that cell (e.g., Deng and Geisler, 1987). Possible exceptions to this generality are the double-peaked discharge patterns sometimes evoked by low- frequency sinusoids (e.g., Sellick, Patuzzi, and Johnstone, 1982, but see Mountain and Cody, 1988, for an opposing view) and the effects of efferent stimulation (e.g., Guinan and Guifford, 1988).
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Békésy, G. von (1951). The coarse pattern of the electrical resistance in the cochlea of the guinea pig (electro-anatomy of the cochlea). J. Acoust. Soc. Am. 23:18–28. Reprinted in Experiments in Hearing, by G. von Békésy ( McGraw-Hill, New York ), 1960, pp. 654–672.
Black, R.C., and Clark, G.M. (1980). Differential electrical excitation of the auditory nerve. J. Acoust. Soc. Am. 67: 868–874.
Brownell, W.E., Zidanic, M., and Spirou, G.A. (1986). Standing currents and their modulation in the cochlea. In Neurobiology of Hearing: The Cochlea, edited by R.A. Altschuler, D.W. Hoffman, and R.P. Bobbin ( Raven Press, New York ), pp. 91–107.
Cannon, M.W., Jr. (1976). Electrical impedances, current pathways and voltage sources in the guinea pig cochlea. Institute for Sensory Research Report ISR-S-14, Syracuse University, Syracuse, N.Y.
Cheatham, M.A., and Dallos, P. (1984). Summating potential (SP) tuning curves. Hearing Res. 16: 189–200.
Dallos, P. (1983). Some electrical circuit properties of the organ of Corti. I. Analysis without reactive elements. Hearing Res. 12: 89–119.
Davis, H. (1958). A mechano-electrical theory of cochlear action. Ann. Otol. Rhinol. Laryngol. 67: 789–801.
Deng, L., and Geisler, C.D. (1987). A composite auditory model for processing speech sounds. J. Acoust. Soc. Am. 82: 2001–2012.
Finley, C.C., Wilson, B.S., and White, M.W. (1987). A finite-element model of bipolar field patterns in the electrically stimulated cochlea—A two-dimensional approximation. Proceedings of the Ninth Annual Conference of the IEEE Engineering in Medicine and Biology Society, Boston, pp. 1901–1903.
Garcia, P., and Clopton, B.M. (1987). Radial current flow and source density in the basal scala tympani. Hearing Res. 31: 55–64.
Geisler, C.D., Mountain, D.C., Hubbard, A.E., Adrian, H.O., and Ravindran, A. (1977). Alternating electrical-resistance changes in the guinea-pig cochlea caused by acoustic stimulation. J. Acoust. Soc. Am. 61: 1557–1566.
Guinan, J.J., Jr., and Gifford, M.L. (1988). Effects of electrical stimulation of efferent olivocochlear neurons on cat auditory-nerve fibers. II. Spontaneous rate. Hearing Res. 33: 115–128.
Hudspeth, A.J., and Corey, D.P. (1977). Sensitivity, polarity, and conductance 2. Electrical Characteristics of Cochlear Tissues 15 change in the response of vertebrate hair cells to controlled mechanical stimuli. Proc. Natl. Acad. Sci. 74: 2407–2411.
Johnstone, B.M., Johnstone, J.R., and Pugsley, I.O. (1966). Membrane resistance in endolymphatic walls of the first turn of the guinea pig cochlea. J. Acoust. Soc. Am. 40: 1398–1404.
Liberman, M.C. (1982). The cochlear frequency map for the cat: Labeling auditory-nerve fibers of known characteristic frequency. J. Acoust. Soc. Am. 72: 1441–1449.
Merzenich, M.M., and Reid, M.D. (1974). Representation of the cochlea within the inferior colliculus of the cat. Brain Res. 77: 397–416.
Merzenich, M.M., and White, M.W. (1977). Cochlear implant: The interface problem. In Functional Electrical Stimulation, edited by J. Resnick and T. Hambrecht ( Marcel Dekker, New York ), pp. 321–340.
Merzenich, M.M., and White, M.W. (1977). Cochlear implant: The interface problem. In Functional Electrical Stimulation, edited by J. Resnick and T. Hambrecht ( Marcel Dekker, New York ), pp. 321–340.
Robertson, D., Cody, A.R., Bredberg, G., and Johnstone, B.M. (1980). Response properties of spiral ganglion neurons in cochleas damaged by direct mechanical trauma. J. Acoust. Soc. Am. 67: 1295–1303.
Russell, I.J. (1983). Origin of the receptor potential in inner hair cells of the mammalian cochlea—Evidence for Davis’ theory. Nature 301: 334–336.
Sellick, P.M., Patuzzi, R., and Johnstone, B.M. (1982). Modulation of responses of spiral ganglion cells in the guinea pig cochlea by low frequency sound. Hearing Res. 7: 199–221.
Spelman, F.A., Clopton, B.M., and Suesserman, M.F. (1987). Measurements of the resistivity of bony tissues of the cochlea. Proceedings of the Ninth Annual Conference of the IEEE Engineering in Medicine and Biology Society, pp. 1911–1912.
Strelioff, D. (1973). A computer simulation of the generation and distribution of cochlear potentials. J. Acoust. Soc. Am. 54: 620–629.
van den Honert, C., and Stypulkowski, P.H. (1984). Physiological properties of the electrically stimulated auditory nerve II. Single fiber recordings. Hearing Res. 14: 225–243.
van den Honert, C., and Stypulkowski, P.H. (1987). Single fiber mapping of spatial excitation patterns in the electrically stimulated auditory nerve. Hearing Res. 29: 195–206.
Wilson, B.S., and Finley, C.C. (1984). Fifth Quarterly Progress Report, NIH Contract N01-NS-2356, Research Triangle Institute, North Carolina.
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1990 Springer Verlag New York Inc.
About this chapter
Cite this chapter
Geisler, C.D. (1990). Electrical Characteristics of Cochlear Tissues. In: Miller, J.M., Spelman, F.A. (eds) Cochlear Implants. Springer, New York, NY. https://doi.org/10.1007/978-1-4612-3256-8_2
Download citation
DOI: https://doi.org/10.1007/978-1-4612-3256-8_2
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4612-7936-5
Online ISBN: 978-1-4612-3256-8
eBook Packages: Springer Book Archive