Central Auditory Pathway Disorders
Brain imaging and neurophysiological methods have been rapidly developed. The purpose of this book is to describe hearing problems which are caused by various kinds of brain diseases in central auditory pathway. Each topic is explained to use a lot of fig
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Central Auditory Pathway Disorders
Kimitaka Kaga
Central Auditory Pathway Disorders
Kimitaka Kaga, M.D., Ph.D. Emeritus Professor The University of Tokyo Director National Institute of Sensory Organs National Tokyo Medical Center 2-5-1 Higashigaoka, Meguro-ku, Tokyo 152-8902, Japan
Library of Congress Control Number: 2009928338 ISBN 978-4-431-26654-9 Springer Tokyo Berlin Heidelberg New York e-ISBN 978-4-431-26920-5 This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in other ways, and storage in data banks. The use of registered names, trademarks, etc. in this publication does not imply, even in the absence of a specific statement, that such names are exempt from the relevant protective laws and regulations and therefore free for general use. Product liability: The publisher can give no guarantee for information about drug dosage and application thereof contained in this book. In every individual case the respective user must check its accuracy by consulting other pharmaceutical literature. Springer is a part of Springer Science+Business Media springer.com © Springer 2009, Tokyo Printed in Japan Typesetting: SNP Best-set Typesetter Ltd., Hong Kong Printing and binding: Hicom, Japan Printed on acid-free paper
Preface
This monograph is a collection of my basic and clinical research papers in auditory evoked potentials of my patients with central auditory pathway disorders. In 1973, it was an epoch-making year in my life when I first became aware of auditory brainstem response (ABR) at a departmental seminar at Teikyo University in 1973, just after I had moved from the Department of Otolaryngology at the University of Tokyo. In the seminar, Professor Tokuro Suzuki, the guest speaker, described ABR to us as a new tool for objective audiometry. The next year, Professor Robert Galambos of the University of California, San Diego, was invited to Teikyo University as a special guest from abroad, and he lectured on auditory neurophysiology and conducted animal experiments of ABRs with us. He ignited a passion in us to study ABRs audiologically and neurologically. Thus inspired, I was convinced that ABRs must be a very useful tool to explore local diagnosis of auditory nerve and brainstem lesions of neurological diseases, coma, and cortical auditory disorders as well as objective audiometry for newborns and infants and for pediatric neurological diseases. In 1979, a Japan–U.S. seminar on ABRs was planned and conducted by Professor Jun-Ichi Suzuki and Professor Galambos, supported by the Japan Science Council. Since Dr. D.L. Jewett discovered ABR in cats and humans in 1970, several names for this auditory evoked response, including BSR (brainstem response), BAER (brainstem auditory evoked response) and others, had been used in scientific and clinical papers and had confused researchers in this field around the world. At the Japan–
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