Hearing Loss


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.




Introduction to Cochlear Waves


Book Description

The first parts of the present text are devoted to a "passive" cochlea, i.e., to cases in which the mechanical energy generated by "active" outer hair cells is absent or negligibly small. Passive human cochleae were studied, e.g., in the post-mortem experiments of von Békésy, who found that tones generate, in the cochlear channel, travelling hydrodynamic surface waves which are similar to waves propagating on the ocean. In spite of the fact that the travelling-wave energy starts to be transformed into frictional heat at the cochlear base already, the velocity amplitude of the basilar-membrane oscillation increases with increasing distance from base. At some place, namely at the "passive peak", that increase stops, and at greater distance from base the amplitude quickly drops to small values. At high [low] tone frequency, the distance from base of the passive peak is short [long].Additional topics treated in this book: the outer hair cells and the "active" response peak generated by them; evanescent cochlear waves; high-frequency plateaux; cochlear maps; certain forms of tinnitus; otoacoustic emissions; frequency glides.The readers are expected to know high-school biology, physics, and mathematics. Exercises and their solutions are included at the end of most chapters.




Cummings Otolaryngology--head & Neck Surgery


Book Description

2015 BMA Medical Book Awards Highly Commended in Surgical Specialties Category! Now in its 6th edition, Cummings Otolaryngology remains the world's most detailed and trusted source for superb guidance on all facets of head and neck surgery. Completely updated with the latest minimally invasive procedures, new clinical photographs, line drawings, and new surgical videos, this latest edition equips you to implement all the newest discoveries, techniques, and technologies that are shaping patient outcomes. Be certain with expert, dependable, accurate answers for every stage of your career from the most comprehensive, multi-disciplinary text in the field! Overcome virtually any clinical challenge with detailed, expert coverage of every area of head and neck surgery, authored by hundreds of leading luminaries in the field. Experience clinical scenarios with vivid clarity through a heavily illustrated, full-color format which includes approximately 3,200 images and over 40 high quality procedural videos. Get truly diverse perspectives and worldwide best practices from a multi-disciplinary team of contributors and editors comprised of the world's leading experts. Glean all essential, up-to-date, need-to-know information. All chapters have been meticulously updated; several extensively revised with new images, references, and content. Stay at the forefront of your field with the most updated information on minimally-invasive surgical approaches to the entire skull base, vestibular implants and vestibular management involving intratympanic and physical therapy-based approaches, radiosurgical treatment of posterior fossa and skull base neoplasms, and intraoperative monitoring of cranial nerve and CNS function. Apply the latest treatment options in pediatric care with new chapters on pediatric sleep disorders, pediatric infectious disease, and evaluation and management of the infant airway. Find what you need faster through a streamlined format, reorganized chapters, and a color design that expedites reference. Manage many of the most common disorders with treatment options derived from their genetic basis. Assess real-world effectiveness and costs associated with emergent technologies and surgical approaches introduced to OHNS over the past 10 years. Incorporate recent findings about endoscopic, microscopic, laser, surgically-implantable, radiosurgical, neurophysiological monitoring, MR- and CT-imaging, and other timely topics that now define contemporary operative OHNS. Take it with you anywhere! With Expert Consult, you'll have access the full text, video clips, and more online, and as an eBook - at no additional cost!




Cochlear Implants


Book Description

The cochlear implant is a device that bypasses a nonfunctional inner ear and stimulates the auditory nerve directly. Written by the "father" of the multi-electrode implant, this comprehensive text and reference gives an account of the principles underlying cochlear implants and their clinical application. For the clinician, the book will provide guidance in the treatment of patients; for the engineer and researcher it will provide the background for further research; and for the student, it will provide a through understanding of the subject.




Implantable Hearing Devices


Book Description

Implantable Hearing Devices is written for ear, nose, and throat surgeons in training who must know about implantable hearing devices as they advance in otologic surgery. It is also a resource for otologic surgeons desiring to know more about the devices available. The technology is evolving rapidly along with the criteria for candidacy, and this text covers the entire spectrum of implantable hearing devices that are available, including but not limited to cochlear implants. Complex issues are presented in an easy to understand format by a host of internationally well-respected authors. Many practitioners have to refer to multiple resources for answers to their questions because the discipline is changing so rapidly. Implantable Hearing Devices is a clear, concise, but comprehensive book that offers answers to the universal problems that otologic surgeons face. Disclaimer: Please note that ancillary content (such as documents, audio, and video, etc.) may not be included as published in the original print version of this book.




Auditory Neuroscience


Book Description

An integrated overview of hearing and the interplay of physical, biological, and psychological processes underlying it.




Anatomy & Physiology


Book Description

A version of the OpenStax text




Cochlear Mechanics


Book Description

This special issue collects our current knowledge of the mechanical processing of acoustic signals by the cochlea and its containing structures. Many workers in diverse disciplines in otology use the facts from cochlear mechanics for the interpretation of their results. Presented here for the first time is the development of a three-dimensional mechanical model of the curved cochlea including fluid-structure couplings. An important approach for future cochlear modeling is shown by the provision of geometrical data for the input of three-dimensional finite element models by microtomographic imaging. A remarkable article tries to demonstrate a connection between outer hair cell mechanics and the complex phenomenon of tinnitus and will be of special interest for stress engineers. Owing to its strong interdisciplinarity, this issue is not only intended for biophysicists, ENT clinicians and audiologists but also for radiologists, biomechanical engineers and computer engineers.




Introduction to Psychology


Book Description

This book is designed to help students organize their thinking about psychology at a conceptual level. The focus on behaviour and empiricism has produced a text that is better organized, has fewer chapters, and is somewhat shorter than many of the leading books. The beginning of each section includes learning objectives; throughout the body of each section are key terms in bold followed by their definitions in italics; key takeaways, and exercises and critical thinking activities end each section.




Functional Neurobiology of Aging


Book Description

Some well-known age-related neurological diseases include Parkinson's disease, Alzheimer's disease, deafness, and blindness. Even more common are the problems of aging which are not due to disease but to more subtle impairments in neurobiological systems, including impairments in vision, memory loss, muscle weakening, and loss of reproductive functions, changes in body weight, and sleeplessness. As the average age of our society increases, diseases of aging continue to become more common, and conditions associated with aging need more attention by doctors and researchers. In 1991, patients over the age of 65 saw their doctors an average of eight times per year. Research funding is provided by the Neuroscience and Neuropsychology of Aging (NNA) Program, which is run by the National Institute on Aging. This book offers a comprehensive overview of all topics related to functional impairments which are related to the aging brain and nervous system. It is organized according to four general functions: movement, senses, memory, and neuroendocrine regulation. Written by the leading researchers in the field, this comprehensive work addresses both impairments associated with diseases and not associated with diseases, making it easier to understand the mechanisms involved. Functional Neurobiology of Aging is an important reference for professionals and students involved in aging research, as well as physicians who need to recognize and understand age-related impairments. - Organized by function, making it easy to find and understand the material - Addresses impairments both associated with diseases and not associated with diseases - Written by leading researchers in the field - Most comprehensive source of information on the neurobiology of aging