Download or read book Contralateral Stimulus Comparison of the Acoustic Reflex Via Reflectance Measures written by Jinna Simone Borgstrom and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The acoustic reflex (AR) occurs as the result of a contraction of the stapedius muscle in response to the presentation of a loud sound. When the stapedius muscle contracts, the ossicular chain and the tympanic membrane are stiffened. Generally, increased stiffness of the middle ear system causes low frequency sounds to be more readily reflected off the tympanic membrane, while high frequency sounds are more easily admitted into the middle ear. Wideband power reflectance (WPR) measures energy across a broad frequency range (200-6000Hz) as it is reflected off of the tympanic membrane. Use of WPR allows for measurement of stiffness effects across frequencies, in comparison to conventional immittance instruments, which measure admittance changes at a single probe tone frequency (226Hz). The purpose of this study was to identify whether reflectance measures could be used to differentiate reflectance patterns resulting from activation of the acoustic reflex as a function of contralateral stimulus type (broadband noise, 500, 1000, 2000 and 4000Hz). This study hypothesized that innervation distribution patterns of the basilar membrane would result in the AR producing different stiffness changes based on contralateral stimulus type. This study additionally demonstrates the potential of WPR to enhance understanding of the AR effects on the auditory system.
Download or read book Comparison of Ipsilateral and Contralateral Acoustic Reflexes Measured Using an Electro acoustic Impedance Meter written by Michael John Smith and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Acoustic Reflex written by Shlomo Silman and published by Elsevier. This book was released on 2012-12-02 with total page 549 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Acoustic Reflex discusses the acoustic reflex - its magnitude in differential diagnosis, threshold, latency, and other related topics. The book covers different topics such as the neurophysiological basis of the acoustic middle-ear reflex and its characteristics; impedance concepts relating to it; and theories of middle-ear muscle function. The text also encompasses the evaluation of the response time of acoustic-immittance instruments; the contralateral acoustic-reflex threshold and its application for prediction of hearing loss; the magnitude and growth of the acoustic; the ipsilateral acoustic reflex; and the acoustic reflex latency. The monograph is recommended for clinicians and researchers in audiology, deaf education, hearing science, neurology, otolaryngology, physiology, and psychology. The book will also serve as a reference text in a course on impedance.
Download or read book Auditory Efferent System New Insights from Cortex to Cochlea written by Paul H. Delano and published by Frontiers Media SA. This book was released on 2016-09-06 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main function of the sensory systems is the transducing of external stimuli into bioelectrical signals, which are conducted through afferent pathways from sensory epithelia to the brain. However, it is known that descending projections are ubiquitous in the different sensory modalities, and in the case of auditory efferents connect the cerebral cortex with sensory receptor cells. Several functions have been attributed to the efferent system, including protection to acoustic trauma, unmasking of auditory stimuli in background noise, balance of interaural sensitivity and some cognitive functions like modulation of cochlear sensitivity during selective attention to auditory or visual stimuli. In addition there is evidence of a possible involvement of the efferent system in the etiology or treatment of some clinical pathologies like tinnitus. In this e-book, entitled “Auditory Efferent System: New Insights from Cortex to Cochlea”, we aimed to give an overview of the advances concerning the descending projections from the auditory cortex to subcortical nuclei and the olivocochlear system. In addition, different theoretical proposals of efferent functions are presented. We think that this e-book is an important contribution to the understanding of the efferent system in mammals, merging auditory-cortex literature with studies performed in the olivocochlear system.
Download or read book Descending Control in the Auditory System written by David Pérez-González and published by Frontiers Media SA. This book was released on 2022-05-25 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book New Advances in Electrocochleography for Clinical and Basic Investigation written by Jeffery T. Lichtenhan and published by Frontiers Media SA. This book was released on 2018-07-09 with total page 315 pages. Available in PDF, EPUB and Kindle. Book excerpt: Electrocochleography (ECochG) is an approach for objective measurements of physiologic responses from the inner ear. Measurements have classically been made from electrodes placed in the outer ear canal, on the tympanic membrane, the round window niche, or inside the cochlea. Recent innovations have led to ECochG being used for exciting new purposes that drive clinical practice and contribute to the basic understanding of inner ear physiology. Cochlear implant recording electrodes can monitor the preservation of residual, low-frequency acoustic hearing, both in the operating room and post-operatively. ECochG measurements can quantify differential effects of inner ear surgery or other manipulations on vestibular and auditory physiology simultaneously. Various attributes of cognitive neuroscience can be addressed with ECochG measurements from the auditory periphery. These advances in ECochG provide a way to understand a variety of inner ear diseases and are likely to be of value to many groups in their own clinical and basic research.
Download or read book Sataloff s Comprehensive Textbook of Otolaryngology Head Neck Surgery written by Robert T Sataloff and published by JP Medical Ltd. This book was released on 2015-11-30 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sataloffs Comprehensive Textbook of Otolaryngology (Six Volume Set) is a multi-volume textbook covering basic and clinical science across the entire field of otolaryngology. Volumes in the set include; otology, neurotology and skull-based surgery; rhinology, allergy and immunology; facial plastic and reconstructive surgery; laryngology; head and neck surgery; and paediatric otolaryngology. The full set is enhanced by over 5000 full colour images and illustrations, spanning nearly 6000 pages, complete with a comprehensive index on DVD. Edited by Robert T Sataloff from Drexel University College of Medicine, Philadelphia, each volume includes contributions from internationally recognised experts in otolaryngology, ensuring authoritative content throughout. Sataloffs Comprehensive Textbook of Otolaryngology (Six Volume Set) is an indispensable, in-depth guide to the field for all otolaryngology practitioners.
Download or read book Objective Assessment of Hearing written by James W. Hall and published by Plural Publishing. This book was released on 2009-12-01 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Cochlea written by Peter Dallos and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 561 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowledge about the structure and function of the inner ear is vital to an understanding of vertebrate hearing. This volume presents a detailed overview of the mammalian cochlea from its anatomy and physiology to its biophysics and biochemistry. The nine review chapters, written by internationally distinguished auditory researchers, provide a detailed and unified introduction to sound processing in the cochlea and the steps by which the ensuing signals are prepared for the central nervous system.
Download or read book Acoustic Immittance Measures written by Lisa L. Hunter and published by Plural Publishing. This book was released on 2013-03-01 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Speech Language and Hearing Research written by and published by . This book was released on 2008 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines for the Care and Use of Mammals in Neuroscience and Behavioral Research written by National Research Council and published by National Academies Press. This book was released on 2003-08-22 with total page 223 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expanding on the National Research Council's Guide for the Care and Use of Laboratory Animals, this book deals specifically with mammals in neuroscience and behavioral research laboratories. It offers flexible guidelines for the care of these animals, and guidance on adapting these guidelines to various situations without hindering the research process. Guidelines for the Care and Use of Mammals in Neuroscience and Behavioral Research offers a more in-depth treatment of concerns specific to these disciplines than any previous guide on animal care and use. It treats on such important subjects as: The important role that the researcher and veterinarian play in developing animal protocols. Methods for assessing and ensuring an animal's well-being. General animal-care elements as they apply to neuroscience and behavioral research, and common animal welfare challenges this research can pose. The use of professional judgment and careful interpretation of regulations and guidelines to develop performance standards ensuring animal well-being and high-quality research. Guidelines for the Care and Use of Mammals in Neuroscience and Behavioral Research treats the development and evaluation of animal-use protocols as a decision-making process, not just a decision. To this end, it presents the most current, in-depth information about the best practices for animal care and use, as they pertain to the intricacies of neuroscience and behavioral research.
Download or read book Handbook of Clinical Impedance Audiometry written by James Jerger and published by . This book was released on 1975 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Disorders of Peripheral and Central Auditory Processing written by Gastone G. Celesia and published by Elsevier Health Sciences. This book was released on 2013-12-12 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Mechanics and Biophysics of Hearing written by Peter Dallos and published by Springer. This book was released on 2014-03-11 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proceedings of a workshop on the physics and biophysics of hearing that brought together experimenters and modelers working on all aspects of audition. Topics covered include: cochlear mechanical measurements, cochlear models, mechanicals and biophysics of hair cells, efferent control, and ultrastructure.
Download or read book Clinical Neurophysiology written by Jasper R. Daube and published by Oxford University Press. This book was released on 2009-05-22 with total page 915 pages. Available in PDF, EPUB and Kindle. Book excerpt: Clinical Neurophysiology, Third Edition will continue the tradition of the previous two volumes by providing a didactic, yet accessible, presentation of electrophysiology in three sections that is of use to both the clinician and the researcher. The first section describes the analysis of electrophysiological waveforms. Section two describes the various methods and techniques of electrophysiological testing. The third section, although short in appearance, has recommendations of symptom complexes and disease entities using electroencephalography, evoked potentials, and nerve conduction studies.
Download or read book Otoacoustic Emissions written by Martin S. Robinette and published by Thieme. This book was released on 2011-01-01 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: A new edition of a best-selling text with a CD-ROM by Dr. David Kemp The new edition of the best-selling Otoacoustic Emissions: Clinical Applications provides a thorough review of the complex physiology of the ear and clinical applications of the latest research on otoacoustic emissions. The book features new chapters on such important topics as middle ear function enhanced by reflectance measurements and the use of otoacoustic emissions as a preclinical measure of susceptibility to hearing loss. Accompanying the book is a CD-ROM developed by Dr. David Kemp, Ph.D., which contains animations, movies, and interviews. The CD-ROM serves as an indispensable aid to both teaching and reviewing key concepts. From physiological phenomena to diagnostic and clinical applications, this book is a complete reference on otoacoustic emissions that will provide graduates in audiology and residents in otolaryngology and otology with all the essential information needed for research and professional practice.
