Description

In our industrialized world, we are surrounded by occupational, recreational, and environmental noise. Very loud noise damages the inner-ear receptors and results in hearing loss, subsequent problems with communication in the presence of background noise, and, potentially, social isolation. There is much less public knowledge about the noise exposure that produces only temporary hearing loss but that in the long term results in hearing problems due to the damage of high-threshold auditory nerve fibers. Early exposures of this kind, such as in neonatal intensive care units, manifest themselves at a later age, sometimes as hearing loss but more often as an auditory processing disorder. There is even less awareness about changes in the auditory brain caused by repetitive daily exposure to the same type of low-level occupational or musical sound. This low-level, but continuous, environmental noise exposure is well known to affect speech understanding, produce non-auditory problems ranging from annoyance and depression to hypertension, and to cause cognitive difficulties. Additionally, internal noise, such as tinnitus, has effects on the brain similar to low-level external noise.

Noise and the Brain discusses and provides a synthesis of hte underlying brain mechanisms as well as potential ways to prvent or alleviate these aberrant brain changes caused by noise exposure.

Key Features

  • Authored by one of the preeminent leaders in the field of hearing research
  • Emphasizes direct and indirect changes in brain function as a result of noise exposure
  • Provides a comprehensive and evidence-based approach
  • Addresses both developmental and adult plasticity
  • Includes coverage of epidemiology, etiology, and genetics of hearing problems; effects of non-damaging sound on both the developing and adult brain; non-auditory effects of noise; noise and the aging brain; and more

Readership

Auditory neuroscientists; secondary market among psychologists, otologists, and audiologists

Table of Contents

Preface

Abbreviations

Chapter 1. Introduction

1.1 Discovery of Noise as a Cause of Hearing Loss

1.2 Experimental Studies in Animals and the Establishment of the Neural Substrates of Hearing

1.3 Towards the Estimation of Exposure Levels not Causing Permanent Hearing Loss

1.4 Towards Legal Limits of Occupational Noise Exposure Levels

1.5 The Surging Manifestation of Recreational Noise

1.6 The Emergence of Noise Annoyance

1.7 Long-Term Exposure to Sound at Levels Well below the Legal Limits Causes Changes in the Central Auditory System

1.8 The Need to Move beyond Threshold Audiometry as an Indicator of Safe Exposure Levels

1.9 Prevention as the Best Solution

References

Chapter 2. Epidemiology, Etiology and Genetics of Hearing Problems

2.1 Epidemiology and Etiology

2.2 Genetic Basis of NIHL

2.3 Summary

References

Chapter 3. Neural Substrates of Noise-Induced Hearing Loss

3.1 Structural Changes in the Auditory System Following Noise Trauma

3.2 Behavioral and Neural Changes

3.3 Molecular Changes

3.4 Summary

References

Chapter 4. Effects of Nondamaging Sound on the Developing Brain

4.1 Animal Studies

4.2 Human Studies

4.3 Effects of Noise on School-Age Children

4.4 Music and Music Training

4.5 Detection of Affected Brains

4.6 Summary

References

Chapter 5. Effects of Deafness on the Young Brain

5.1 Overview

5.2 Newborn Hearing Screening

5.3 Effects of Sensorineural Hearing Loss

5.4 Conductive Hearing Loss

5.5 Effects of Cochlear Implantation

5.6 Performance in Early and Late Implanted Children

5.7 Summary

References

Chapter 6. Speech Understanding in Noise

6.1 Effects of Noise and Reverberation on Speech Perception: Role of Age

6.2

Details

No. of pages:
392
Language:
English
Copyright:
© 2014
Published:
Imprint:
Academic Press
eBook ISBN:
9780123914316
Print ISBN:
9780124159945

About the author

Jos Eggermont

Dr. Jos J. Eggermont is an Emeritus Professor in the Departments of Physiology and Pharmacology, and Psychology at the University of Calgary in Alberta, Canada. Dr. Eggermont is one of the most renowned scientists in the field of the auditory system and his work has contributed substantially to the current knowledge about hearing loss. His research comprises most aspects of audition with an emphasis on the electrophysiology of the auditory system in experimental animals. He has published over 200 scientific articles, authored/edited 8 books, and contributed to over 90 book chapters all focusing on the auditory system.

Affiliations and Expertise

Departments of Physiology and Pharmacology, and Psychology, University of Calgary, Canada

Reviews

In our industrialized world, we are surrounded by occupational, recreational, and environmental noise. Very loud noise damages the inner-ear receptors and results in hearing loss, subsequent problems with communication in the presence of background noise, and, potentially, social isolation. There is much less public knowledge about the noise exposure that produces only temporary hearing loss but that in the long term results in hearing problems due to the damage of high-threshold auditory nerve fibers. Early exposures of this kind, such as in neonatal intensive care units, manifest themselves at a later age, sometimes as hearing loss but more often as an auditory processing disorder. There is even less awareness about changes in the auditory brain caused by repetitive daily exposure to the same type of low-level occupational or musical sound. This low-level, but continuous, environmental noise exposure is well known to affect speech understanding, produce non-auditory problems ranging from annoyance and depression to hypertension, and to cause cognitive difficulties. Additionally, internal noise, such as tinnitus, has effects on the brain similar to low-level external noise.

Noise and the Brain discusses and provides a synthesis of hte underlying brain mechanisms as well as potential ways to prvent or alleviate these aberrant brain changes caused by noise exposure.