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--- abstract: | This chapter describes the mechanical function of the cochlea, or inner ear, the organ that converts signals from acoustical to neural. Many cochlear hearing disorders are still not well understood. If systematic progress is to be made in improved diagnostics and treatment of these disorders, a clear understanding of basic principles is essential. Models of the cochlea are useful because they succinctly describe auditory perception principles. Several topics will be reviewed. First, the history of cochlear models, including extensions that have taken place in recent years. These models include both macromechanics and micromechanics of the tectorial membrane and hair cells. This leads to comparisons of the basilar membrane, hair cell, and neural frequency tuning. The role of nonlinear mechanics and dynamic range are covered to help the student understand the importance of modern wideband dynamic range compression hearing aids. Hearing loss, loudness recruitment, as well as other important topics of modern hearing health care, are briefly discussed. altloc: [] chapter: 19 commentary: ~ commref: ~ confdates: ~ conference: ~ confloc: ~ contact_email: ~ creators_id: [] creators_name: - family: Allen given: Jont honourific: '' lineage: '' date: 2001 date_type: published datestamp: 2001-05-25 department: ~ dir: disk0/00/00/15/12 edit_lock_since: ~ edit_lock_until: ~ edit_lock_user: ~ editors_id: [] editors_name: - family: Jahn given: Anthony F. honourific: '' lineage: '' - family: Santos-Sacchi given: Joseph honourific: '' lineage: '' eprint_status: archive eprintid: 1512 fileinfo: /style/images/fileicons/application_pdf.png;/1512/3/raven.pdf full_text_status: public importid: ~ institution: ~ isbn: ~ ispublished: pub issn: ~ item_issues_comment: [] item_issues_count: 0 item_issues_description: [] item_issues_id: [] item_issues_reported_by: [] item_issues_resolved_by: [] item_issues_status: [] item_issues_timestamp: [] item_issues_type: [] keywords: 'cochlear modeling, DPOAE, Inner ear, masking, cochlear nonlinearity, neural tuning curves,outer hair cells, hearing loss' lastmod: 2011-03-11 08:54:38 latitude: ~ longitude: ~ metadata_visibility: show note: ~ number: ~ pagerange: 393-442 pubdom: FALSE publication: ' Physiology of the Ear, Second Edition' publisher: Singular Thompson refereed: FALSE referencetext: |-2 \bibitem{Pickles82} J.~O. 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McMullen. \newblock Electromechanical processes in the cochlea. \newblock In E.~de~Boer and M.A. Viergever, editors, {\em Mechanics of Hearing}, pages 119--126, Netherlands, 1983. Delft Univ. \bibitem{MOH90} P.~Dallos, C.D. Geisler, J.W. Matthews, M.A. Ruggero, and C.R. Steele. \newblock {\em The Mechanics and Biophysics of Hearing}. \newblock Springer-Verlag, New York, 1991. relation_type: [] relation_uri: [] reportno: ~ rev_number: 12 series: ~ source: ~ status_changed: 2007-09-12 16:38:22 subjects: - bio-phys - bio-theory - psy-phys succeeds: ~ suggestions: ~ sword_depositor: ~ sword_slug: ~ thesistype: ~ title: Nonlinear cochlear signal processing type: bookchapter userid: 1817 volume: ~