Author: Yidao CaiPublisher:
ISBN:
Category :
Languages : en
Pages : 602
Book Description
Temporal Responses of the Auditory-nerve Fibers to Single-tone and Two-tone Stimuli
Author: Yidao CaiStimulus-response Relation for Auditory-noise Fibers: Two-tone Stimuli
Author: Murray B. SachsPublisher:
ISBN:
Category :
Languages : en
Pages : 12
Book Description
Spike discharges from single fibers in the auditory nerve of anesthetized cats were recorded with microelectrodes. Rates of discharge were measured as functions of the frequencies and levels of either single tone bursts or of the sum of two simultaneous tone bursts. From these data, a mathematical expression relating rate of discharge to parameters of a two-tone stimulus is derived. The rate of response is written as the sum of a 'spontaneous' part and a driven part. The driven part of the response to two tones is a weighted sum of the driven parts of the responses to the individual tones presented alone. The weighting factors to a first approximation depend only on the ratio of the levels of the two tones and on their frequencies. The relationship of this stimulus-response formulation to existing data and to auditory system models is discussed. (Author).
Temporal Encoding and Processing of Information in the Auditory Nerve and Anteroventral Cochlear Nucleus of the Cat
Author: Laurel H. CarneyAuditory Physiology
Author: Aage MollerPublisher: Elsevier
ISBN: 0323156193
Category : Science
Languages : en
Pages : 318
Book Description
Auditory Physiology describes the functions of the ear and the auditory nervous system, using well-documented research work. This book explains the physiology of the ear, the general function of the auditory nervous system, and its anatomy. This text also discusses in detail the neurophysiological basis for discriminating frequency and time. This discrimination refers in particular to (1) the ability to distinguish two sounds on the basis of their frequencies when the two sounds are not presented at the same time; and (2) the ability to discriminate one spectral component in a complex sound that contains several spectral components. This book notes that for low frequencies, temporal analysis is more useful in processing complex sounds than the simple determination of energy in different frequency bands. Research shows that particular spatial patterns of response to different characteristic of complex sounds can exist, which are not feature detectors such as neurons specifically tuned to special and complex properties of a certain stimulus. This book can prove beneficial for physiologists, neurobiologists, neurophysiologists, general medical practioners, and EENT specialists.
Discharge Rate of Auditory-nerve Fibers to Two-tone Stimuli
Author: Paul J. AbbasCochlear Implants
Author: Joseph M. MillerPublisher: Springer Science & Business Media
ISBN: 1461232562
Category : Medical
Languages : en
Pages : 416
Book Description
This volume describes a new direction in technological and biomedical developments for profoundly deaf individuals. The first section covers topics of tissue characteristics, such as responses to electrical stimulation and computer modelling of cochlea currents. Perception of acoustic signals, responses and behavioral pattern as well as psychophysical aspects are treated in the second part. Part III is addressed to perspectives and challenges of encoding schemes. Reports on studies of acoustic and electrical encoding of temporal information, speech features with cochlear implants as well as psychophysical and speech perceptual studies will allow further strategies for cochlea implants.
Hearing Loss
Author: National Research CouncilPublisher: National Academies Press
ISBN: 0309092965
Category : Social Science
Languages : en
Pages : 321
Book Description
Millions of Americans experience some degree of hearing loss. The Social Security Administration (SSA) operates programs that provide cash disability benefits to people with permanent impairments like hearing loss, if they can show that their impairments meet stringent SSA criteria and their earnings are below an SSA threshold. The National Research Council convened an expert committee at the request of the SSA to study the issues related to disability determination for people with hearing loss. This volume is the product of that study. Hearing Loss: Determining Eligibility for Social Security Benefits reviews current knowledge about hearing loss and its measurement and treatment, and provides an evaluation of the strengths and weaknesses of the current processes and criteria. It recommends changes to strengthen the disability determination process and ensure its reliability and fairness. The book addresses criteria for selection of pure tone and speech tests, guidelines for test administration, testing of hearing in noise, special issues related to testing children, and the difficulty of predicting work capacity from clinical hearing test results. It should be useful to audiologists, otolaryngologists, disability advocates, and others who are concerned with people who have hearing loss.
The Journal of the Acoustical Society of America
Author: Acoustical Society of AmericaPublisher:
ISBN:
Category : Acoustical engineering
Languages : en
Pages : 1360
Book Description
Cochlear and Brainstem Implants
Author: Aage R. MøllerPublisher: Karger Medical and Scientific Publishers
ISBN: 3805581572
Category : Medical
Languages : en
Pages : 237
Book Description
Today cochlear implants are the most successful of all prostheses of the nervous system. They are used in individuals who are deaf or suffer from a severe hearing deficiency caused by loss of cochlear hair cells. Auditory brainstem implants provide stimulation of the cochlear nucleus and are used in patients with an auditory nerve dysfunction, a deformed cochlea which does not allow cochlear implantation, or traumatic auditory nerve injury. In this volume different aspects of cochlear implantation such as the role of neural plasticity, the interaction with the development of the auditory system, and the optimal time of implantation in children (sensitive periods) are discussed in detail. Further, the processors and the algorithms used in modern cochlear implants are described The second part is devoted to auditory brainstem implants. It describes surgical techniques, methods for intraoperative testing as well as speech processing. It also deals with electrical stimulation of neural tissue and the neurophysiologic basis for cochlear and brainstem implants. The publication provides the latest scientific and clinical knowledge on cochlear and brainstem implants and is highly recommended to audiologists, otolaryngologists and also neurosurgeons.
Speech Processing in the Auditory System
Author: Steven GreenbergPublisher: Springer Science & Business Media
ISBN: 0387215751
Category : Science
Languages : en
Pages : 487
Book Description
Although speech is the primary behavioral medium by which humans communicate, its auditory basis is poorly understood, having profound implications on efforts to ameliorate the behavioral consequences of hearing impairment and on the development of robust algorithms for computer speech recognition. In this volume, the authors provide an up-to-date synthesis of recent research in the area of speech processing in the auditory system, bringing together a diverse range of scientists to present the subject from an interdisciplinary perspective. Of particular concern is the ability to understand speech in uncertain, potentially adverse acoustic environments, currently the bane of both hearing aid and speech recognition technology. There is increasing evidence that the perceptual stability characteristic of speech understanding is due, at least in part, to elegant transformations of the acoustic signal performed by auditory mechanisms. As a comprehensive review of speech's auditory basis, this book will interest physiologists, anatomists, psychologists, phoneticians, computer scientists, biomedical and electrical engineers, and clinicians.