Wideband Acoustic Immittance and DPOAE Changes in Older Adults
Wideband Acoustic Immittance and DPOAE Changes in Older Adults

Author:

Publisher:

Published: 2016

Total Pages: 70

ISBN-13:

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This study examined the effect of middle ear aging in adults using wideband acoustic immittance (WAI) measures. WAI and traditional 226 Hz tympanometry were measured in 25 young adult ears (ages 18-25) and 26 older adult ears (ages 50-71) with normal middle ear status. While minimal differences between older and younger adults were observed with 226 Hz tympanometry, significant age effects were seen with WAI measures. The older adults demonstrated a statistically significant increase in middle ear absorbance at lower frequencies (226-1,260 Hz) and decreased absorbance at higher frequencies (4,000-5,040 Hz) compared to the younger adult group. While the effect of age on WAI was the primary focus of this study, other factors such as ear canal volume and sex influence WAI measures in addition to age. This study also examined the relationship between WAI and distortion product otoacoustic emissions at f2= 1,000, 2,000, and 4,000 Hz in 50 ears from both the age groups. A statistically significant relationship between WAI magnitude and DPOAE magnitude, independent of pure tone threshold sensitivity, was observed at 4,000 Hz. Findings from this study demonstrated an age effect in middle ear transfer function and a potential for WAI to assist with DPOAE interpretation. This study further contributes to the emerging research that suggests a conductive component to the aging auditory system.

Advances in Clinical Audiology
Advances in Clinical Audiology

Author: Stavros Hatzopoulos

Publisher: BoD – Books on Demand

Published: 2017-03-29

Total Pages: 261

ISBN-13: 9535130439

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Advances in Clinical Audiology is an excursus on the latest findings in clinical audiology with a strong emphasis in new emerging technologies which facilitate and optimize a better assessment of the human patient. The book has been edited with a strong educational perspective (all chapters include an extensive introduction to their corresponding topic and an extensive glossary of terms). The book contains material suitable for graduate students in audiology, ENT, hearing science, and neuroscience.

Physiological Acoustics
Physiological Acoustics

Author: Ernest Glen Wever

Publisher: Princeton University Press

Published: 2015-12-08

Total Pages: 475

ISBN-13: 1400876435

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This book deals with the ear as an acoustic instrument: as a piece of physical apparatus functioning for the reception of sounds from the outside, for conveying them inward to the auditory sense cells, and finally for producing a mechanical stimulation of these cells. Originally published in 1954. The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press. These editions preserve the original texts of these important books while presenting them in durable paperback and hardcover editions. The goal of the Princeton Legacy Library is to vastly increase access to the rich scholarly heritage found in the thousands of books published by Princeton University Press since its founding in 1905.

A Dictionary of Grammatical Terms in Linguistics
A Dictionary of Grammatical Terms in Linguistics

Author: R.L. Trask

Publisher: Routledge

Published: 2013-04-15

Total Pages: 348

ISBN-13: 1134884206

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This dictionary of grammatical terms covers both current and traditional terminology in syntax and morphology. It includes descriptive terms, the major theoretical concepts of the most influential grammatical frameworks, and the chief terms from mathematical and computational linguistics. It contains over 1500 entries, providing definitions and examples, pronunciations, the earliest sources of terms and suggestions for further reading, and recommendations about competing and conflicting usages. The book focuses on non-theory-boumd descriptive terms, which are likely to remain current for some years. Aimed at students and teachers of linguistics, it allows a reader puzzled by a grammatical term to look it up and locate further reading with ease.

Contemporary Perspectives in Hearing Assessment
Contemporary Perspectives in Hearing Assessment

Author: Frank E. Musiek

Publisher: Allyn & Bacon

Published: 1999

Total Pages: 536

ISBN-13:

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Assessment of the central auditory nervous system; pseudohypacusis; occupational hearing loss prevention; and instrumentation and calibration. For hearing professionals and others looking for the latest information on contemporary hearing assessment.