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By David T. Kemp (auth.), Geoffrey A. Manley, Richard R. Fay, Arthur N. Popper (eds.)

ISBN-10: 0387714677

ISBN-13: 9780387714677

ISBN-10: 0387714693

ISBN-13: 9780387714691

Sounds which are truly produced by means of fit ears let researchers and clinicians to check listening to and cochlear functionality noninvasively in either animals and people. Active approaches and Otoacoustic Emissions in Hearing provides the 1st severe overview of the organic foundation of those otoacoustic emissions. energetic approaches, reminiscent of these in hair cells that produce emissions, characterize a burgeoning and significant quarter of sensory learn. via supplying a foundation for knowing how and why otoacoustic emissions checking out works via a simple knowing of common listening to approaches, this quantity also will curiosity clinicians, fairly otolaryngologists and audiologists.

Contents:

    • Otoacoustic Emissions - Origins David Kemp
    • Traveling Waves, moment Filters and Physiological Vulnerability: a quick heritage of the invention of energetic techniques in listening to Nigel P. Cooper, James O. Pickles and Geoffrey A. Manley
    • Critical Oscillators as lively parts in listening to Thomas A. J. Duke and Frank Jülicher
    • Active Hair-Bundle Motility of the Hair Cells of Vestibular and Auditory Organs Pascal Martin
    • The Morphological Specializations and Electromotility of the Mammalian Outer Hair cellphone Richard Hallworth and Heather C. Jensen-Smith
    • Active tactics in Insect listening to Martin Göpfert and Daniel Robert
    • Otoacoustic Emissions in Amphibians, Lepidosaurs and Archosaurs Geoffrey A. Manley and Pim van Dijk
    • Otoacoustic Emissions: easy reviews in Mammalian versions Brenda Lonsbury-Martin and Glen Martin
    • Mechanisms of Mammalian Otoacoustic Emission Christopher A. Shera and John J. Guinan, Jr.
    • Cellular and Molecular Mechanisms within the Efferent keep an eye on of Cochlear Nonlinearities Ian J. Russell and Andrei N. Lukashkin
    • Cochlear types Incorporating energetic techniques Stephen Neely and Duck On Kim
    • Relations among Otoacoustic and Psychophysical Measures of Cochlear functionality Tiffany A. Johnson, Michael P. Gorga, Stephen T. Neely, Andrew J. Oxenham and Christopher A. Shera
    • Otoacoustic Emissions as a Diagnostic device in a medical Context Thomas Janssen and Jörg Müller
    • Future instructions within the learn of lively procedures and Otoacoustic Emissions Geoffrey A. Manley and William E. Brownell

About the editors:

Geoffrey A. Manley, Lehrstuhl fur Zoologie, Technical college of Munich, Garching, Germany. Richard R. Fay is Director of the Parmly listening to Institute and Professor of Psychology at Loyola collage of Chicago. Arthur N. Popper is Professor within the division of Biology and Co-Director of the guts for Comparative and Evolutionary Biology of listening to on the college of Maryland, collage Park.

About the series:

The Springer guide of Auditory Research provides a sequence of man-made reports of basic subject matters facing auditory platforms. each one quantity is self reliant and authoritative; taken as a suite, this sequence is the definitive source within the field.

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Additional info for Active Processes and Otoacoustic Emissions in Hearing

Example text

Kemp and Knight (1999) introduced the term “virtual reflector” to describe this phenomenon. If the DP’s distributed source “wavelength” is not only negative but also appropriate to a reverse traveling wave of the DP frequency, then such a spatial distribution will optimally excite distortion product waves traveling coherently toward the base. Thus, although the distortion product itself is generated by hair cell nonlinearity all along the length of the overlapping stimulus traveling waves, it is only over a limited length and in a restricted stimulus-frequency ratio range that coherent wave transmission of DP to the base becomes optimal.

It was not intended as a speculative new model of cochlear function, but simply as an attempt to explain a set of actual psychoacoustical phenomena. It is a curious coincidence that the resonant Q values of ≈ 100 that Gold wrongly believed were needed for hearing did actually appear in the auditory microstructure because of whole cochlear feedback oscillation! Gold’s model predicted sharply tuned mechanics in the healthy living cochlea. , Evans and Wilson 1975). Gold’s model had also predicted tonal spontaneous acoustic emissions as a result of abnormal function, which he failed to confirm, and in 1971, Glanville et al.

The response is identified statistically by level above the background noise at neighboring frequencies. DP frequency is precisely related to the stimulus frequencies f1 and f2 by the formulas f1 − N f2 − f1 for the lower band and f2 + N f2 − f1 for the upper side band (N an integer greater than 1). DPOAE are often thought of as puretone emissions, but this is true only when a single component is separated by processing. T. Kemp modulated sine wave oscillations pulsing at the stimulus difference frequency (see Fig.

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Active Processes and Otoacoustic Emissions in Hearing by David T. Kemp (auth.), Geoffrey A. Manley, Richard R. Fay, Arthur N. Popper (eds.)


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