Download or read book Improvement of automatic pure tone air conduction audiometry written by Florian Schmitt and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pure Tone Audiometry and Masking written by Maureen Valente and published by Plural Publishing. This book was released on 2009-09-01 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Improving Pure tone Audiometry Using Probabilistic Machine Learning Classification written by Xinyu David Song and published by . This book was released on 2017 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hearing loss is a critical public health concern, affecting hundreds millions of people worldwide and dramatically impacting quality of life for affected individuals. While treatment techniques have evolved in recent years, methods for assessing hearing ability have remained relatively unchanged for decades. The standard clinical procedure is the modified Hughson-Westlake procedure, an adaptive pure-tone detection task that is typically performed manually by audiologists, costing millions of collective hours annually among healthcare professionals. In addition to the high burden of labor, the technique provides limited detail about an individual's hearing ability, estimating only detection thresholds at a handful of pre-defined pure-tone frequencies (a threshold audiogram). An efficient technique that produces a detailed estimate of the audiometric function, including threshold and spread, could allow for better characterization of particular hearing pathologies and provide more diagnostic value. Parametric techniques exist to efficiently estimate multidimensional psychometric functions, but are ill-suited for estimation of audiometric functions because these functions cannot be easily parameterized.The Gaussian process is a compelling machine learning technique for inference of nonparametric multidimensional functions using binary data. The work described in this thesis utilizes Gaussian process classification to build an automated framework for efficient, high-resolution estimation of the full audiometric function, which we call the machine learning audiogram (MLAG). This Bayesian technique iteratively computes a posterior distribution describing its current belief about detection probability given the current set of observed pure tones and detection responses. The posterior distribution can be used to provide a current point estimate of the psychometric function as well as to select an informative query point for the next stimulus to be provided to the listener. The Gaussian process covariance function encodes correlations between variables, reflecting prior beliefs on the system; MLAG uses a composite linear/squared exponential covariance function that enforces monotonicity with respect to intensity but only smoothness with respect to frequency for the audiometric function.This framework was initially evaluated in human subjects for threshold audiogram estimation. 2 repetitions of MLAG and 1 repetition of manual clinical audiometry were conducted in each of 21 participants. Results indicated that MLAG both agreed with clinical estimates and exhibited test-retest reliability to within accepted clinical standards, but with significantly fewer tone deliveries required compared to clinical methods while also providing an effectively continuous threshold estimate along frequency. This framework's ability to evaluate full psychometric functions was then evaluated using simulated experiments. As a feasibility check, performance for estimating unidimensional psychometric functions was assessed and directly compared to inference using standard maximum-likelihood probit regression; results indicated that the two methods exhibited near identical performance for estimating threshold and spread. MLAG was then used to estimate 2-dimensional audiometric functions constructed using existing audiogram phenotypes. Results showed that this framework could estimate both threshold and spread of the full audiometric function with high accuracy and reliability given a sufficient sample count; non-active sampling using the Halton set required between 50-100 queries to reach clinical reliability, while active sampling strategies reduced the required number to around 20-30, with Bayesian active leaning by disagreement exhibiting the best performance of the tested methods. Overall, MLAG's accuracy, reliability, and high degree of detail make it a promising method for estimation of threshold audiograms and audiometric functions, and the framework's flexibility enables it to be easily extended to other psychophysical domains.

Download or read book THE PURE TONE AIR CONDUCTION AUDIOGRAM written by and published by . This book was released on 1969 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Many U. S. Air Force Flight Surgeons, medical officers, and others concerned with the conduct of hearing conservation programs have expressed the need for a set of guidelines to be used in the interpretation of audiometric data. Although the air conduction audiogram does not provide sufficient information to allow a definitive diagnosis to be made, it usually gives an indication as to whether a hearing loss is conductive or sensorineural in origin. In addition, determination may be made from the audiogram as to what further testing should be carried out and what action may be necessary to prevent further hearing loss. A method for interpretation of audiometric data is presented. An explanation of the various audiometric contours is given, followed by a step-by-step procedure for analyzing the pure-tone audiogram. In addition, recommendations are made concerning the handling of patients whose audiograms are not within normal limits. Utilization of these procedures within a compreshensive program of hearing testing, noise control, and education is recommended wherever personnel work in hazardous noise. They should also be helpful in dealing with other types of hearing losses. (Author).

Download or read book Journal of Rehabilitation Research Development written by and published by . This book was released on 2011 with total page 754 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Audiometric Assistant written by National Association of Hearing and Speech Agencies and published by . This book was released on 1971 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of Rehabilitation R D written by and published by . This book was released on 2001 with total page 536 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 Effects of Experimenter Bias Upon Pure tone and Speech Audiometric Test Results written by Nicholas Moore Hipskind and published by . This book was released on 1968 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hearing Health Care for Adults written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-10-06 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: The loss of hearing - be it gradual or acute, mild or severe, present since birth or acquired in older age - can have significant effects on one's communication abilities, quality of life, social participation, and health. Despite this, many people with hearing loss do not seek or receive hearing health care. The reasons are numerous, complex, and often interconnected. For some, hearing health care is not affordable. For others, the appropriate services are difficult to access, or individuals do not know how or where to access them. Others may not want to deal with the stigma that they and society may associate with needing hearing health care and obtaining that care. Still others do not recognize they need hearing health care, as hearing loss is an invisible health condition that often worsens gradually over time. In the United States, an estimated 30 million individuals (12.7 percent of Americans ages 12 years or older) have hearing loss. Globally, hearing loss has been identified as the fifth leading cause of years lived with disability. Successful hearing health care enables individuals with hearing loss to have the freedom to communicate in their environments in ways that are culturally appropriate and that preserve their dignity and function. Hearing Health Care for Adults focuses on improving the accessibility and affordability of hearing health care for adults of all ages. This study examines the hearing health care system, with a focus on non-surgical technologies and services, and offers recommendations for improving access to, the affordability of, and the quality of hearing health care for adults of all ages.

Download or read book Interpretation of Audiometric Results written by Irving Hochberg and published by Bobbs-Merrill Company. This book was released on 1973 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Masking Technique in Clinical Pure tone Audiometry written by Milton Albert Valentine and published by . This book was released on 1958 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reliability of Pure Tone Air Conduction Threshold Measures Using Three Audiometric Noise Barrier Headsets and a Supra aural Headset written by Francis Anthony Aiello and published by . This book was released on 1970 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modern Developments in Audiology written by James Jerger and published by . This book was released on 1963 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book CAN CSA Z107 6 M90 Pure Tone Air Conduction Threshold Audiometry for Hearing Conservation written by Canadian Standards Association and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pure Tone Air Conduction Audiometers for Hearing Conservation and for Screening written by Association canadienne de normalisation and published by . This book was released on 1986 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pure Tone Air Conduction Threshold Audiometry for Hearing Conservation written by Canadian Standards Association and published by Rexdale, Ont. : The Association. This book was released on 1990 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: