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How does the brain go about the business of being conscious? Though we cannot yet provide a complete answer, this book explains what is now known about the neural basis of human consciousness. The authors are experts in psychology and neuroscience who have conducted original research on consciousness and wish to communicate the highlights of this research. Beginning with an overview of conscious awareness, this book explains identified neurocognitive systems and examines theories which tackle global aspects of consciousness.
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FINDING CONSCIOUSNESS IN THE BRAIN
ADVANCES IN CONSCIOUSNESS RESEARCH ADVANCES IN CONSCIOUSNESS RESEARCH provides a forum for scholars from different scientific disciplines and fields of knowledge who study consciousness in its multifaceted aspects. Thus the Series will include (but not be limited to) the various areas of cognitive science, including cognitive psychology, linguistics, brain science and philosophy. The orientation of the Series is toward developing new interdisciplinary and integrative approaches for the investigation, description and theory of consciousness, as well as the practical consequences of this research for the individual and society.
EDITORS
Maxim I. Stamenov (Bulgarian Academy of Sciences) Gordon G. Globus (University of California at Irvine) EDITORIAL BOARD David Chalmers (University of Arizona) Gordon G. Globus (University of California at Irvine) Ray Jackendoff (Brandeis University) Christof Koch (California Institute of Technology) Stephen Kosslyn (Harvard University) Earl Mac Cormac (Duke University) George Mandler (University of California at San Diego) John R. Searle (University of California at Berkeley) Petra Stoerig (Universität Düsseldorf) Francisco Varela (C.R.E.A., Ecole Polytechnique, Paris)
Volume 8 Peter G. Grossenbacher (ed.) Finding Consciousness in the Brain A neurocognitive approach
FINDING CONSCIOUSNESS IN THE BRAIN A NEUROCOGNITIVE APPROACH
Edited by PETER G. GROSSENBACHER National Institute of Mental Health, Bethesda
JOHN BENJAMINS PUBLISHING COMPANY AMSTERDAM/PHILADELPHIA
8
TM
The paper used in this publication meets the minimum requirements of American National Standard for Information Sciences — Permanence of Paper for Printed Library Materials, ansi z39.48–1984.
Library of Congress Cataloging-in-Publication Data Finding consciousness in the brain : a neurocognitive approach / edited by Peter G. Grossenbacher. p. cm. -- (Advances in consciousness research, ISSN 1381-589X ; v. 8) Includes bibliographical references. 1. Cognitive neuroscience. I. Grossenbacher, Peter G. II. Series. QP360.5.F55 1998 612.8’2--dc21 98-16141 ISBN 90 272 5128 2 (Eur.) / 1 55619 188 x (US) (Pb; alk. paper) CIP © 2001 - John Benjamins B.V. No part of this book may be reproduced in any form, by print, photoprint, microfilm, or any other means, without written permission from the publisher. John Benjamins Publishing Co. • P.O.Box 36224 • 1020 ME Amsterdam • The Netherlands John Benjamins North America • P.O.Box 27519 • Philadelphia PA 19118-0519 • USA
Contents Apology Foreword Michael Posner Acknowledgments Preface
vii ix xii xiii
Contributors
xv
CHAPTER 1 A phenomenalogical introduction to the cognitive neuroscience of consciousness Peter G. Grossenbacher I
EDGES
OF CONSCIOUSNESS
CHAPTER 2 Now you see it, now you don’t: Preventing consciousness with visual masking Mark Price
1
21
25
CHAPTER 3 Consciousness of the physical and the mental: Evidence from autism 61 Simon Baron-Cohen II
MENTAL CONTENT
AND ACTION
CHAPTER 4 Visual consciousness Stephen M. Kosslyn CHAPTER 5 Intersensory integration: Underlying neural mechanisms Barry E. Stein and