Download or read book Hearing impaired Listeners Perception of s written by Sandra Isabella Ramos and published by . This book was released on 1981 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hearing Loss written by National Research Council and published by National Academies Press. This book was released on 2004-12-17 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Suprathreshold perception in normal hearing and hearing impaired listeners written by Jan Hots and published by Logos Verlag Berlin GmbH. This book was released on 2014-08-12 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt: The perception of sound by the human auditory system is a complex process and its understanding is of major importance for many applications in our everyday life, e.g., the estimation of noise emissions, or the development of hearing aids. The mechanics of the human auditory system and the perception of sound are investigated in psychoacoustics. Psychoacoustic studies and measures help to characterize the perception of sound. The scope of this thesis is the perception of loudness and sound intensity. Loudness perception, among other aspects, depends on temporal and spectral properties of a sound. In the present thesis temporal and spectral effects of loudness as well as the changing of the perception of loudness and sound intensity in hearing-impaired listeners are investigated. Especially regarding the loudness of subcritical noise bands, the presented results are challenging for current ideas of modeling loudness perception.
Download or read book Perception of Periodicity Pitch in Hearing Impaired Listeners written by George O'Neill Purvis and published by . This book was released on 1973 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Perception of Fluctuating Sounds by Hearing impaired Listeners written by Joannes Adrianus Petrus Maria Laat and published by . This book was released on 1989 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Modeling Sensorineural Hearing Loss written by Walt Jesteadt and published by Routledge. This book was released on 2019-01-04 with total page 515 pages. Available in PDF, EPUB and Kindle. Book excerpt: A recent study indicates that 20 million people in the United States have significant sensorineural hearing loss. Approximately 95% of those people have partial losses, with varying degrees of residual hearing. These percentages are similar in other developed countries. What changes in the function of the cochlea or inner ear cause such losses? What does the world sound like to the 19 million people with residual hearing? How should we transform sounds to correct for the hearing loss and maximize restoration of normal hearing? Answers to such questions require detailed models of the way that sounds are processed by the nervous system, both for listeners with normal hearing and for those with sensorineural hearing loss. This book contains chapters describing the work of 25 different research groups. A great deal of research in recent years has been aimed at obtaining a better physiological description of the altered processes that cause sensorineural hearing loss and a better understanding of transformations that occur in the perception of those sounds that are sufficiently intense that they can still be heard. Efforts to understand these changes in function have lead to a better understanding of normal function as well. This research has been based on rigorous mathematical models, computer simulations of mechanical and physiological processes, and signal processing simulations of the altered perceptual experience of listeners with sensorineural hearing loss. This book provides examples of all these approaches to modeling sensorineural hearing loss and a summary of the latest research in the field.
Download or read book How and Why Does Spatial Hearing Ability Differ among Listeners What Is the Role of Learning and Multisensory Interactions written by Guillaume Andéol and published by Frontiers Media SA. This book was released on 2016-08-29 with total page 255 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spatial-hearing ability has been found to vary widely across listeners. A survey of the existing auditory-space perception literature suggests that three main types of factors may account for this variability: - physical factors, e.g., acoustical characteristics related to sound-localization cues, - perceptual factors, e.g., sensory/cognitive processing, perceptual learning, multisensory interactions, - and methodological factors, e.g., differences in stimulus presentation methods across studies. However, the extent to which these–and perhaps other, still unidentified—factors actually contribute to the observed variability in spatial hearing across individuals with normal hearing or within special populations (e.g., hearing-impaired listeners) remains largely unknown. Likewise, the role of perceptual learning and multisensory interactions in the emergence of a multimodal but unified representation of “auditory space,” is still an active topic of research. A better characterization and understanding of the determinants of inter-individual variability in spatial hearing, and of its relationship with perceptual learning and multisensory interactions, would have numerous benefits. In particular, it would enhance the design of rehabilitative devices and of human-machine interfaces involving auditory, or multimodal space perception, such as virtual auditory/multimodal displays in aeronautics, or navigational aids for the visually impaired. For this Research Topic, we have considered manuscripts that: - present new methods, or review existing methods, for the study of inter-individual differences; - present new data (or review existing) data, concerning acoustical features relevant for explaining inter-individual differences in sound-localization performance; - present new (or review existing) psychophysical or neurophysiological findings concerning spatial hearing and/or auditory perceptual learning, and/or multisensory interactions in humans (normal or impaired, young or older listeners) or other species; - discuss the influence of inter-individual differences on the design and use of assistive listening devices (rehabilitation) or human-machine interfaces involving spatial hearing or multimodal perception of space (ergonomy).
Download or read book Perception of Speech Music and Emotion by Hearing impaired Listeners written by Tim Metcalfe and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Methods for Robust Characterization of Consonant Perception in Hearing impaired Listeners written by Woojae Han and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Individuals with {it sensorineural hearing loss} (SNHL) are prescribed hearing aids and/or a cochlear implant, based on their pure-tone threshold and speech perception scores. Although these assistive listening devices do help these individuals communicate in quiet surroundings, many still have difficulty understanding speech in noisy environments. Especially, listeners with mild-to-moderate SNHL have complained that their hearing aids do not provide enough benefit to facilitate understanding of normal speech. Why is it that the modern hearing aid, even with a high level of technology, does not produce one-hundred percent efficiency? We shall show that the current clinical measurements, which interpret the result as a mean score (e.g., pure-tone average, speech recognition threshold, AI-gram, etc.), do not deliver sufficient information about the characteristics of a SNHL listener's impairment when hearing speech, and thus, result in a poorly fitting hearing aid.\ This dissertation addressed three key questions, fundamental to clinical audiology and hearing science: (1) How well do the results of standard clinical tests predict the speech perception ability of SNHL patients? (2) Are the existing methods of hearing aid fitting (e.g., the half-gain rule, NAL-R, etc.) appropriate for modern hearing aid technology? (3) How useful are measured error patterns of speech perception in SNHL patients in addressing these perception errors?\ Four sub-studies were conducted for finding answers to the proposed questions: textbf{Study I} measured individual consonant errors to quantify how each hearing-impaired (HI) listener perceives speech sounds (e.g., high- vs. low-error consonants), and then compared the individual consonant errors to the results provided by currently used clinical measurements to ascertain the differences. The results of Study I showed that the HI ear had significant errors in receiving only a few consonants. There was a low correlation between the error rates of high-error consonants and either degree and configuration of pure-tone hearing threshold or average consonant scores. textbf{Study II} examined how reliably a CV listening test could measure a HI listener's consonant loss using only {it zero-error} (ZE) utterances (defined as utterances for which normal hearing (NH) listeners incur zero errors, citep{singh2011}) and having a statistically suitable number of presentations in CVs, in order to characterize unique HI consonant loss. We provided graphical as well as statistical analysis to see not only the error rate (%) of a target consonant but also its pattern of specific confusions. As we found in Study I, there was no measurable correlation between pure-tone threshold and the error rate, or no identification of high-error consonants in HI ears. As noise increased, the percentage of error and confusions of target consonants increased. Although some consonants showed significantly higher errors and resulted in more confusion than others, HI ears have a very different consonant confusion pattern than NH ears, which may not be either measured or analyzed by the use of average scores. Comparison between the two (separated) phases of the experiment (Exp.~II) showed a good internal consistency for all HI ears. textbf{Study III} investigated whether or not NAL-R amplification might offer a positive benefit to speech perception of each HI listener at the consonant level, i.e., differentiates consonants that are distorted with amplification from those that achieve a positive benefit from amplification. The results were then compared to the current clinical measurement to see a relation between consonants which have positive amplification benefit and hearing loss. Regardless of NAL-R amplification, HI listeners have their own consonant dependence and the dependence was not predicted by either pure-tone threshold or aided threshold. HI listeners who have symmetrical hearing loss do not have the same positive amplification benefit to the two ears. textbf{Study IV} characterized consonant perception errors of each HI listener by identifying missing critical features of misheard consonants as a function of signal-to-noise ratio (SNR), while following the same procedure (i.e., increasing the number of ZE utterance presentations up to 20) as in Study II, yet for the NAL-R amplification condition. As the noise increased, consonant error and confusions were significantly increased, although by applying gains provided by NAL-R amplification correction. The percentage of error and confusions of the target consonants were different across the HI ears, thus could not be averaged. When the results of Study IV were compared with those of Study II, a significant amplification effect is found. Generally, the percentage of error and confusions were decreased in the NAL-R condition as a function of SNRs. However, typical average analysis, using mean score and grouping the HI ears, failed to explain the idiosyncratic characteristics of HI speech perception.\ Overall, this series of studies concluded that current average measures and analyses have a serious, even fatal limitation in finding problems of HI speech perception. Therefore, we have explored the use of the nonsense CV test for as a more precise measure. We will show that this can make significant contributions to HI speech perception. We propose that this CV test and its application might be utilized in the clinical setting, to improve the diagnosis of HI speech perception. This research will help HI listeners hear day-to-day conversations more clearly, as well as aid in audiological diagnosis and successful rehabilitation to increase speech perception for HI listeners.
Download or read book Aspects of Vowel Perception by Normal Hearing and Hearing Impaired Listeners written by Joan Marie Besing and published by . This book was released on 1988 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract.
Download or read book Auditory Training written by Norman P. Erber and published by . This book was released on 1982 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Update On Hearing Loss written by Fayez Bahmad and published by BoD – Books on Demand. This book was released on 2015-12-02 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: Update on Hearing Loss encompasses both the theoretical background on the different forms of hearing loss and a detailed knowledge on state-of-the-art treatment for hearing loss, written for clinicians by specialists and researchers. Realizing the complexity of hearing loss has highlighted the importance of interdisciplinary research. Therefore, all the authors contributing to this book were chosen from many different specialties of medicine, including surgery, psychology, and neuroscience, and came from diverse areas of expertise, such as neurology, otolaryngology, psychiatry, and clinical and experimental audiology.
Download or read book Timbre Acoustics Perception and Cognition written by Kai Siedenburg and published by Springer. This book was released on 2019-05-07 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Roughly defined as any property other than pitch, duration, and loudness that allows two sounds to be distinguished, timbre is a foundational aspect of hearing. The remarkable ability of humans to recognize sound sources and events (e.g., glass breaking, a friend’s voice, a tone from a piano) stems primarily from a capacity to perceive and process differences in the timbre of sounds. Timbre raises many important issues in psychology and the cognitive sciences, musical acoustics, speech processing, medical engineering, and artificial intelligence. Current research on timbre perception unfolds along three main fronts: On the one hand, researchers explore the principal perceptual processes that orchestrate timbre processing, such as the structure of its perceptual representation, sound categorization and recognition, memory for timbre, and its ability to elicit rich semantic associations, as well as the underlying neural mechanisms. On the other hand, timbre is studied as part of specific scenarios, including the perception of the human voice, as a structuring force in music, as perceived with cochlear implants, and through its role in affecting sound quality and sound design. Finally, computational acoustic models are sought through prediction of psychophysical data, physiologically inspired representations, and audio analysis-synthesis techniques. Along these three scientific fronts, significant breakthroughs have been achieved during the last decade. This volume will be the first book dedicated to a comprehensive and authoritative presentation of timbre perception and cognition research and the acoustic modeling of timbre. The volume will serve as a natural complement to the SHAR volumes on the basic auditory parameters of Pitch edited by Plack, Oxenham, Popper, and Fay, and Loudness by Florentine, Popper, and Fay. Moreover, through the integration of complementary scientific methods ranging from signal processing to brain imaging, the book has the potential to leverage new interdisciplinary synergies in hearing science. For these reasons, the volume will be exceptionally valuable to various subfields of hearing science, including cognitive auditory neuroscience, psychoacoustics, music perception and cognition, but may even exert significant influence on fields such as musical acoustics, music information retrieval, and acoustic signal processing. It is expected that the volume will have broad appeal to psychologists, neuroscientists, and acousticians involved in research on auditory perception and cognition. Specifically, this book will have a strong impact on hearing researchers with interest in timbre and will serve as the key publication and up-to-date reference on timbre for graduate students, postdoctoral researchers, as well as established scholars.
Download or read book Auditory and Visual Cues in Speech Perception written by Donna L. Eskwitt and published by . This book was released on 1988 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Foundations of Aural Rehabilitation written by Nancy Tye-Murray and published by Delmar. This book was released on 2009 with total page 777 pages. Available in PDF, EPUB and Kindle. Book excerpt: We proudly present the new third edition of Foundations of Aural Rehabilitation: Children, Adults, and Their Family Members, International Edition, one of our most successful and widely used texts for audiologists and speech-language pathologists. A readable, comprehensive resource, it covers topics such as identification and diagnosis of hearing and other hearing-related communication challenges, patient and family counseling, selection and fitting of listening devices, communication training, literacy promotion, and much more. General information is provided in the early sections, while the latter half of the book focuses on adult and child populations, respectively. New to this edition is a chapter devoted to infants and toddlers who have hearing loss and an expanded consideration of informational counseling.
Download or read book The Handbook of Language and Speech Disorders written by Nicole Müller and published by John Wiley & Sons. This book was released on 2012-07-10 with total page 674 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Speech and Language Disorders presents a comprehensive survey of the latest research in communication disorders. Contributions from leading experts explore current issues, landmark studies, and the main topics in the field, and include relevant information on analytical methods and assessment. A series of foundational chapters covers a variety of important general principles irrespective of specific disorders. These chapters focus on such topics as classification, diversity considerations, intelligibility, the impact of genetic syndromes, and principles of assessment and intervention. Other chapters cover a wide range of language, speech, and cognitive/intellectual disorders.
Download or read book Binaural Interference a Guide for Audiologists written by James Jerger and published by Plural Publishing. This book was released on 2018-02-23 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Binaural interference occurs when the speech input to one ear interferes with the input to the other ear during binaural stimulation. The first published study on binaural interference twenty-five years ago demonstrated that some individuals, particularly older individuals, perform more poorly with two hearing aids than with one and/or more poorly with binaural than monaural stimulation on electrophysiologic as well as behavioral measures. Binaural interference is relevant to every audiologist because it impacts the successful use of binaural hearing aids and may explain communicative difficulty in noise or other challenging listening situations in persons with normal-hearing sensitivity as well as persons with hearing loss. This exciting new book written by two highly respected audiologists first traces the history of its study by researchers, then reviews the evidence, both direct and indirect, supporting its reality. This is followed by a discussion of the possible causes of the phenomenon and in-depth analysis of illustrative cases. The authors outline a systematic approach to the clinical detection, evaluation and amelioration of individuals who exhibit binaural interference. Suggestions are furnished on improved techniques for evaluation of the binaural advantage in general and on sensitized detection of the disorder in particular. The book ends with recommendations for future directions. Given the adverse impact of binaural interference on auditory function and its occurrence in a significant subset of the population with hearing loss, as well as in some individuals with normal-hearing sensitivity, research on binaural interference only recently has begun to flourish, and adaptation of audiologic clinical practice to identify, assess, and manage individuals with binaural interference has yet to become widespread. The authors intend for the book to provide impetus for pursuing further research and to encourage audiologists to explore the possibility of binaural interference when patient complaints suggest it and when performing audiologic evaluations. The book is intended for practicing clinical audiologists, audiology students, and hearing scientists.
