Download or read book An Investigation of the Relationship Between Acoustic Reflex Growth and Loudness Growth written by and published by . This book was released on 1970 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Investigation of the Relationship Between the Acoustic Reflex Growth and Loudness Growth in Normal and Pathological Ears written by Randall Keith Beedle and published by . This book was released on 1970 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study to Investigate the Relationship Between Loudness Discomfort Level and the Acoustic Reflex Threshold written by Karen Lee Heerse Vitolo and published by . This book was released on 1982 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acoustic reflex Growth and the Loudness discomfort Level written by Donna Gayle Greenfield and published by . This book was released on 1980 with total page 296 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 Development of an Audiometric Technique to Identify Individuals Susceptibility to Noise written by Marie-Pier Champagne and published by . This book was released on 2010 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: BoldAbstract /bolduniderlineIntroduction/underline: As shown in previous studies (Borg, Nilsson, & Engström, 1983; Zakrisson, Borg, Liden & Nilsson, 1980) the absence of acoustic reflex (AR) increases the hearing hazards from noise exposure. Past researchers (Stach, 1987; Colletti & Sittoni, 1986; Stach & Jerger, 1984) have studied the AR as a potential indicator of individuals' susceptibility to noise. The Colletti & Sittoni (1986) study indicates a relationship between the strength of the acoustic reflex contraction and the ear's resistance to noise. However, no relationship has been established so far between the acoustic reflex characteristics and susceptibility to develop a noise-induced hearing loss.^The goal of this project is to evaluate whether the strength of contraction of the acoustic reflex in workers exposed to high level noise is correlated with their industrial acquired hearing loss.Method: Retrospective analysis was conducted on 82 workers exposed to noise environments (Leq) of approximately 90 dBA. Participants were divided into four groups according to their hearing threshold (HT) in relation to their predicted ISO 1999 distribution (predicted hearing threshold based on a normal distribution with a given age as well as time and level of exposure). Group 1 was composed of workers with excellent hearing (HT falling between the 75th and the 90th percentile of the ISO 1999 distribution), Group 2 with just above average hearing workers (HT between the 50th and the 75th percentile), and Group 3 with just below average hearing workers (HT between the 25th and the 50th percentile.^Group 4, on its side, was composed of workers that had developed the same amount of hearing loss as Group 2 workers but in a much shorter period of time (3 to 10 years in contrast to 13 to 20 years for Group 2 workers). All participants underwent an audiometric testing as well as an acoustic reflex measurement using a newly developed Interacoustic Wideband Reflectance instrument. Wideband acoustic reflexes were evaluated using 500, 1000 and 2000 Hz pure tones as well as a broad band noise. The acoustic reflex thresholds, strength of contraction as well as dynamic range were compared between the four groups for all stimulus presentations.Results: Observed results tend to show that Group 1 (more resistant to noise) has on average stronger acoustic reflex (lower acoustic reflex threshold, stronger contraction) than Group 4 (least resistant to noise).^However, due to a large inter-individual variability and relatively small number of subjects for a field study, the observed tendencies are not statistically significant. The need for further investigation to establish a correlation or a lack of correlation between AR and susceptibility to noise-induced hearing loss is clear. It would be of great interest to be able to prevent noise-induced hearing loss before it happens.
Download or read book Loudness written by Mary Florentine and published by Springer Science & Business Media. This book was released on 2010-11-04 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: Loudness is the primary psychological correlate of intensity. When the intensity of a sound increases, loudness increases. However, there exists no simple one-to-one correspondence between loudness and intensity; loudness can be changed by modifying the frequency or the duration of the sound, or by adding background sounds. Loudness also changes with the listener’s cognitive state. Loudness provides a basic reference for graduate students, consultants, clinicians, and researchers with a focus on recent discoveries. The book begins with an overview of the conceptual thinking related to the study of loudness, addresses issues related to its measurement, and later discusses the physiological effects of loud sounds, reaction times and electrophysiological measures that correlate with loudness. Loudness in the laboratory, loudness of steady-state sounds and the loudness of time-varying sounds are also covered, as are hearing loss and models.
Download or read book Predicting the Loudness Discomfort Level from the Acoustic Reflex Threshold and Growth Function written by Justine Marie Cannavo and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Clinical Relationship Between Acoustic Reflexes and Loudness Discomfort Level written by Danielle Marie Mikulich and published by . This book was released on 1978 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Loudness Changes Associated with the Acoustic Reflex when Pitch Levels are Equated written by William Frederick Prather and published by . This book was released on 1960 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Relationships Between the Magnitudes of Acoustic Reflexes and Loudness Discomfort Levels written by May Lee and published by . This book was released on 1987 with total page 90 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 Research Awards Index written by and published by . This book was released on 1978 with total page 1520 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Communication Disorders written by R. W. Rieber and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1976 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sensory Research written by Ronald T. Verrillo and published by Psychology Press. This book was released on 2014-03-05 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a record of the proceedings of a festspiel held to honor Jozef F. Zwislocki for his outstanding contributions to science and to Syracuse University. His contributions to the knowledge of the hydromechanical, neurophysiological, and perceptual mechanisms of the auditory system are truly monumental. In addition, his contributions to the comprehension of the mammalian auditory system include not only landmark ideas, but also many of the experimental findings in psychoacoustics and peripheral auditory physiology that constitute the database which has provided a springboard for research in laboratories throughout the world. His efforts to link physics, biology, and psychophysics to create a basis for our understanding of the nervous system have had an influence that extends far beyond the science of acoustics. Although the purpose of this conference was to recognize the many achievements of Professor Zwislocki, the spirit of the participants was to honor him in a manner that best characterized his lifetime dedication to research, that is, to report the results of their own work. Consequently, this volume is first and foremost a compilation of scientific papers in the area of sensory research. Some are reports of recent experiments and some present an overview of research efforts extending from the past up to ongoing work. His influence can be recognized in all of the contributions and some explicitly describe the ties between their own work and the germinal ideas planted by him. This volume, in reflecting the rapid progress being made in sensory science and written by those who are making it, is a fitting tribute to Zwislocki, who always stood at the forefront of his science.
Download or read book Journal of Speech and Hearing Research written by and published by . This book was released on 1973 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
