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The Mechanics and Biophysics of Hearing: Proceedings of a Conference held at the University of Wisconsin, Madison, WI, June 25–29, 1990 PDF

426 Pages·1990·42.081 MB·English
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The Mechanics and Biophysics of Hearing Proceedings of a Conference held at the University of Wisconsin, Madison, WI, June 25-29, 1990 ~i1 Springer-Verlag Berlin Heidelberg GmbH Editorial Board Ch. Delisi M. Feldman J. 8. Keller M. Kimura S. Levin (Managing Editor) R. May J. D. Murray G. F. Oster A.S. Perelson L.A. Segel Editors Peter Dallos Auditory Physiology Laboratory and Department of Neurobiology and Physiology, Northwestern University Evanston, IL 60208, USA C. Daniel Geisler Department of Neurophysiology and Department of Electrica! and Computer Engineering University of Wisconsin-Madison, Madison, Wl 53706, USA John W. Matthews Computer Systems Laboratory, Washington University St. Louis, MO 63110, USA Mario A. Ruggero Department of Otolaryngology, University of Minnesota Minneapolis, MN 55414, USA Charles R. Steele Division of Applied Mechanics, Stanford University, Stanford, CA 94305, USA Mathematics Subject Classification (1980): 92-06 ISBN 978-0-387-97473-6 ISBN 978-1-4757-4341-8 (eBook) DOI 10.1007/978-1-4757-4341-8 This work is subject to copyright. Ali rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, re-use of illustrations, recitation, broadcasting, reproduction on microfilms or in other ways, and storage in data banks. Duplication of this publication or paris thereof is only permitted under the provisions of the German Copyright Law of September 9, 1965, in its current version, and a copyright fee must always be paid. Violations fali under the prosecution act of the German Copyright Law. © Springer-Verlag Berlin Heidelberg 1990 Printing and binding: Beltz Offsetdruck, Hemsbach/Bergstr. 2146/3140-543210-Printed on acid-free paper Introduction This compendium represents the proceedings of a five-day symposium held at the University of Wisconsin, Madison between June 25 and 29, 1990. The remarkably rapid progress of hearing science during the past twenty years has been punctuated by two series of international symposia. One series began as meetings whose purpose it was to bring physiologists and psychophysicists together. These triennial meetings continue to the present time at various locations in Europe. A second series of meetings has been designed to enhance interchange among neurobiologists, biophysicists and mathematical modelers dealing with cochlear function. The present volume is the latest in this second series. In the late seventies and early eighties hearing science entered a revolutionary state in which many fundamental tenets of the cochlea's functioning required reassessment. Key discoveries, among them outer hair cell influence upon cochlear output, otoacoustic emissions, outer hair cell motility and multiplicity of schemes of producing cochlear tuning in different species, provided the rungs of the ladder upon which we climb. The frame of the ladder was made of new and refined techniques applied to cochlear measurements that pem1itted new views of the system. The assimilation and invention of techniques for measuring low-level motion and force, intracellular measurements in vivo and a bewildering array of in vitro methods, including those examining single channel properties and cell motility, yielded a comucopia of data. The emerging view of the mammalian cochlea, based on these methods and experiments, is that of a highly nonlinear distributed feedback system, in which outer hair cells provide local mechanical feedback to the basilar membrane-tectorial membrane complex under stimulus and efferent control to produce the remarkable frequency selectivity and sensitivity of the audit01y periphe1y. Being an extraordinarily complex mechano-hydraulic and bio-electric system, the cochlea has fascinated physicists and engineers since Helmholtz' time. The past decade's developments in the laboratory were paralleled by advances in computing and modeling. An additional element that made recent modeling efforts particularly valuable is a new and highly developed communication process among experimenters and modelers. To this end, symposia have been organized with the avowed purpose of bringing these two species together and fostering their intermarriage. The Madison meeting continues a series of such international symposia focused on cochlear function. It follows in the spirit of the first of these meetings at Delft in 1983 (Mechanics of Hearing, Edts. E. de Boer and M.A. Viergever, Delft University Press, Delft, 1983) as well as the previous meeting at Keele in 1988 (Cochlear Mechanisms, Edts. J.P. Wilson and D.T. Kemp, Plenum Press, New York, 1989). The tradition of these symposia will continue, providing the periodic overviews and summaries that are so necessary in a rapidly advancing discipline. As the table of contents indicates, we achieved an excellent balance between theoreticians and experimentalists, reflecting the healthy state of the field. It is also apparent that many ingredients necessary for understanding cochlear function are present in this volume. We begin with experiments and models pertaining to the physiology and motility of individual hair cells and address one of the key issues: what is the relevance of motility to cochlear mechanics? The book continues with several papers on general cochlear physiology and with a major section on otoacoustic emissions. The study of these emitted sounds, whose origin is in the cochlea, has been one of the most profitable avenues of recent inquiry. Another productive line of research, measuring macromechanical movements with ever increasing precision, dates back to Bekesy's work and is producing some of the most definitive inforn1ation about cochlear function. Our compendium closes with two sections on general and nonlinear cochlear models. Ill The symposium on The Mechanics and Biophysics of Hearing was supported by the National Institute of Deafness and other Communication Disorders (DC00009-01) and by the National Science Foundation (BNS-8919879). We thank the Department of Neurophysiology, University of Wisconsin for its hospitality and the departmental staff for their untiring efforts on the conference's behalf. Particular thanks are extended toP. J-leinritz, R. Klipstein and R. Sorensen . The conference logo was designed by C. Dizack. The editors dedicate this volume to the memory of the late modeler-experimenter, Juergcn Tonndorf who passed away last year. August, 1990 Peter Dallos C. Daniel Geisler John W. Matthews Mario A. Ruggero Charles R. Steele IV Introduction III v CONTENTS 1. Hair Cell and Cilia l Calcium ions and the adaptation of the transducer current in turtle 2 cochlear hair cells M.G. Evans, R. Fettiplace and A.C. Crawford Structural abnormalities in inner hair cells following kanamycin-induced 10 outer hair cell loss CM. Hackney, D.N. Furness and P.S. Steyger Modelling input-output characteristics of the inner hair cell 18 J.W. Horst and P.C. de long Calcium ions promote rapid mechanically evoked movements of hair bundles 26 F: Jaramillo, J. Howard and AJ. Hudspeth Modulation of voltage responses to 100Hz tones by high frequency 34 tones in cochlear hair cells M. Kossl and I.J. Russell Movements and mechanical properties of ampullary hair bundles and of 42 their kinocilium A. Rasch and U. Thurm 2 Hair Cell Motility 51 The effect of cytoplasmic turgor pressure on the static and dynamic 52 mechanical properties of outer hair cells W.E. Brownell and W.E. Shehata The nonlinearity of outer hair cell motility: implications for cochlear 61 physiology and pathology BN. Evans, R. Hal/worth and P. Dallos Fast outer hair cell motility: how fast is fast? 69 J. Santos-Sacchi Elastic behavior of the outer hair cell wall 76 C.R. Steele 3. Relevance of Motility to Macromechanics 85 A model for cochlear vibrations based on feedback from motile 86 outer hair cells C.D. Geisler and X. Shan Does the cochlear amplifier produce reactive or resistive forces? 96 P J. Kolston and G.F. Smoorenburg The basilar membrane nonlinear input-output function 106 G.K. Yates Active cochlear feedback: Required structure and response phase 114 J.J. Zwislocki v 4. Electrophysiology Spontaneous activity of auditory afferent neurones in the spiral ganglion of the pigeon A.W. Gummer Two-tone rate suppression in auditory nerve fibers: Time course of suppression and excitation in peri-stimulus time histograms K.G. Hill and A.R. Palmer Further evidence for tuning mechanisms of high dynamic order in lower vertebrates E.R. Lewis, M.G. Sneary and X. Yu Observations on structure and function of the olivocochlear projections in cat M.C. Liberman The sting is in the tail V.F. Prijs, J. Keijzer, R. Schoonhoven and H. Versnel 5. Emissions Can basilar membrane tuning be inferred from distortion measurement? A.M. Brown and S.A. Gaskill Changes in stimulus frequency otoacoustic emissions produced by two-tone suppression and efferent stimulation in cats J.J. Guinan, Jr. Growth functions of tone burst evoked and distortion-product otoacoustic emissions in humans F .P. Harris and R. Probst Sound induced changes in electrically evoked cochlear emissions A.E. Hubbard, H.H. Nakajima, E.S. Olson and D.C. Mountain Chaotic dynamics of otoacoustic emissions D.H. Keefe, E.M. Burns, R. Ling and B. Laden Observations on simultaneous SFOAE and DPOAE generation and suppression D.T. Kemp, D.N. Brass and M. Souter Components of the 2f1-f2 distortion product in the earcanal of the bobtailed lizard G.A. Manley, C. Koppl and B.M. Johnstone Active and passive ADP components in mammalian and avian ears S.J. Norton and E.W. Rubel A generalized Vander Pol-oscillator cochlea model M.P.M.G. Van den Raadt and H. Duifhuis Quantitative evaluation of limit-cycle oscillator models cf spontaneous otoacoustic emissions C.L. Talmadge, G.R. Long, W.J. Murphy and A. Tubis Actively and passively generated acoustic distortion at 2f1-f2 in rabbits M.L. Whitehead, B.L. Lonsbury-Martin and G.K. Martin Effects of tympanic membrane modification on distortion product otoacoustic emissions in the cat ear canal M.L. Wiederhold Spontaneous otoacoustic emission generators behave like coupled oscillators H.P. Wit VI 6. Macromechanical Measurements 269 Measurement of middle ear transfer function in cat, chinchilla and 270 guinea pig L. Decory, R.B. Franke and A.L. Dancer Helmholtz revisited: direct mechanical data suggest a physical model 278 for dynamic control of mapping frequency to place along the cochlear partition E.L. LePage Measurements of basilar membrane tuning and distortion with laser 288 Doppler velocimetry AL. Nuttall, D.F. Dolan and G. Avinash In vivo measurement of basilar membrane stiffness 296 E.S. Olson and D.C. Mountain Two-tone distortion products in the basilar membrane of the chinchilla 304 L. Robles, M.A. Ruggero and N.C. Rich Systemic injection of furosemide alters the mechanical response to sound 314 of the basilar membrane M.A. Ruggero and N.C. Rich 7. General Cochlear Models 323 Modeling the noise damaged cochlea 324 J.B. Allen Wave propagation modes and boundary conditions for the 333 Ulfendahl-Flock-Khanna (UFK) preparation E. de Boer On dipoles and the radiating membrane 340 J.S.C. van Dijk Approximate evaluation of cochlear model tuning from the wave 348 development graph S.M. Novoselova The fractal doubly stochastic Poisson point process as a model for the 354 cochlear neural spike train M.C. Teich, R.G. Turcott and S.B. Lowen The impedance of the organ of Corti 362 G. Zweig 8. Nonlinear Models 371 Implementation of a nonlinear wave-digital filter cochlear model 372 D H. Friedman Nonlinear transmission line model can predict the statistical properties of 380 spontaneous otoacoustic emissions M. Furst Mathematical analysis of a nonlinear model for hybrid filtering in the cochlea 387 J.L. Goldstein Automatic gain control in cochlear mechanics 395 R.F. Lyon Non-linearity in a computational model of the response of the 403 basilar membrane R. Meddis, MJ. Hewitt and T.M. Shackleton Level dependence of the latency of cochlear transients 411 S.T. Neely VII Section 1 Hair Cell and Cilia

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