THE COLLECTED WORKS OF F. A. Hayek VOLUME XIV THE SENSORY ORDER and other writings on the foundations of theoretical psychology PLAN OF THE COLLECTED WORKS Edited by Bruce Caldwell Volume I The Fatal Conceit: The Errors of Socialism (1988) Volume II The Road to Serfdom: Text and Documents— The Definitive Edition (2007) Volume III The Trend of Economic Thinking: Essays on Political Economists and Economic History (1991) Volume IV The Fortunes of Liberalism: Essays on Austrian Economics and the Ideal of Freedom (1992) Volume V Good Money, Part I: The New World (1999) Volume VI Good Money, Part II: The Standard (1999) Volume VII Business Cycles, Part I (2012) Volume VIII Business Cycles, Part II (2012) Volume IX Contra Keynes and Cambridge: Essays, Correspondence (1995) Volume X Socialism and War: Essays, Documents, Reviews (1997) Volume XI Capital and Interest (2015) Volume XII The Pure Theory of Capital (2007) Volume XIII Studies on the Abuse and Decline of Reason: Text and Documents (2010) Volume XIV The Sensory Order and Other Writings on the Foundations of Theoretical Psychology (2017) Volume XV The Market and Other Orders (2014) Volume XVI Hayek on Mill: The Mill-T aylor Friendship and Related Writings (2015) Volume XVII The Constitution of Liberty: The Definitive Edition (2011) Volume XVIII Essays on Liberty and Economics Volume XIX Law, Legislation and Liberty Supplement Hayek on Hayek: An Autobiographical Dialogue (1994) The plan is provisional. Minor alterations may occur in titles of individual books, and several additional volumes may be added. THE COLLECTED WORKS OF F. A. Hayek VOLUME XIV THE SENSORY ORDER and other writings on the foundations of theoretical psychology EDITED BY VIKTOR J. VANBERG The University of Chicago Press The University of Chicago Press, Chicago 60637 The University of Chicago Press, Ltd., London © 2017 by The Estate of F. A. Hayek All rights reserved. No part of this book may be used or reproduced in any manner whatsoever without written permission, except in the case of brief quotations in critical articles and reviews. For more information, contact the University of Chicago Press, 1427 E. 60th St., Chicago, IL 60637. Published 2017 Printed in the United States of America 26 25 24 23 22 21 20 19 18 17 1 2 3 4 5 ISBN- 13: 978- 0- 226- 43642- 5 (cloth) ISBN- 13: 978- 0- 226- 43656- 2 (e- book) DOI: 10.7208/chicago/9780226436562.001.0001 “The Sensory Order after 25 Years,” F. A. Hayek. © 1982 Lawrence Erlbaum Associates, Publishers. Reproduced with permission of Taylor & Francis Group. Library of Congress Cataloging-in-Publication Data Names: Hayek, Friedrich A. von (Friedrich August), 1899–1992, author. | Vanberg, Viktor, editor. | Hayek, Friedrich A. von (Friedrich August), 1899–1992. Sensory order. | Hayek, Friedrich A. von (Friedrich August), 1899–1992. Works. English. Selections. | Hayek, Friedrich A. von (Friedrich August), 1899–1992. Works. 1989 ; v. 14. Title: The sensory order and other writings on the foundations of theoretical psychology / F.A. Hayek ; edited by Viktor J. Vanberg. Description: Chicago : The University of Chicago Press, 2017. | Series: Collected works of F.A. Hayek ; volume XIV | Includes works by F.A. Hayek, translated from the German. | Includes index. Identifiers: LCCN 2016033851 | ISBN 9780226436425 (cloth : alk. paper) | ISBN 9780226436562 (e-book) Subjects: LCSH: Psychophysiology. | Psychology. Classification: LCC BF181 .H385 2017 | DDC 150.1—dc23 LC record available at https:// lccn .loc .gov /2016033851 ♾ This paper meets the requirements of ANSI/NISO Z39.48- 1992 (Permanence of Paper). THE COLLECTED WORKS OF F. A. HAYEK Founding Editor: W. W. Bartley III General Editor: Bruce Caldwell Published with the support of The Hoover Institution on War, Revolution and Peace Stanford University The Cato Institute The Earhart Foundation The Pierre F. and Enid Goodrich Foundation The Heritage Foundation The Morris Foundation, Little Rock CONTENTS Editorial Foreword ix The “Knowledge Problem” as the Integrating Theme of F. A. Hayek’s Oeuvre: An Introduction to The Sensory Order 1 THE SENSORY ORDER: AN INQUIRY INTO THE FOUNDATIONS OF THEORETICAL PSYCHOLOGY 113 Preface 115 Table of Contents 123 Introduction, by Heinrich Klüver 127 I. The Nature of the Problem 135 II. An Outline of the Theory 168 III. The Nervous System as an Instrument of Classification 184 IV. Sensation and Behavior 204 V. The Structure of the Mental Order 224 VI. Consciousness and Conceptual Thought 250 VII. Confirmations and Verifications of the Theory 263 VIII. Philosophical Consequences 279 contents OTHER WRITINGS ON THE FOUNDATIONS OF THEORETICAL PSYCHOLOGY 319 Contributions to a Theory of How Consciousness Develops 321 What Is Mind? 348 Within Systems and About Systems: A Statement of Some Problems of a Theory of Communication 361 The Sensory Order after 25 Years 382 Name Index 391 Subject Index 397 viii EDITORIAL FOREWORD This new edition of The Sensory Order is supplemented by four texts that are directly related to what the subtitle describes as Hayek’s Inquiry into the Founda tions of Theoretical Psychology. Firstly, “Contributions to a Theory of How Consciousness Develops” is the English translation, published here for the first time, of a paper entitled “Beiträge zur Theorie der Entwicklung des Bewußtseins,” which Hayek wrote as a student in 1920 before he decided to pursue degrees in law and in eco- nomics rather than in psychology. Even though, as Hayek notes in his preface to The Sensory Order, “the basic idea then conceived has continued to occupy me,” it was only in the second half of the 1940s that he took up again the sub- ject addressed in his student days’ essay, to expand the arguments he had out- lined there into a book-l ength manuscript. The title he originally chose for this project, What Is Mind?, he changed for the 1952 publication to The Sen sory Order. Secondly, this volume includes the English translation, also pub- lished here for the first time, of a lecture Hayek had delivered in 1949 at a conference in the Tyrolean village Alpbach. Because this lecture, entitled “Das Wesen des Geistigen,” consists of a brief summary of the core ideas Hayek had developed in What Is Mind?, the latter title has also been chosen for the English version published here instead of a literal translation of the original German title. The third supplemental text, “Within Systems and About Sys- tems: A Statement of Some Problems of a Theory of Communication,” is a previously unpublished fragment of a paper Hayek had started to work on in 1952 in which he sought to further clarify issues addressed in The Sensory Order, but which he left uncompleted. Finally, the fourth supplement included here, “The Sensory Order after 25 Years,” is Hayek’s contribution, originally published in 1982, to a conference on Cognition and the Symbolic Process, which was held in 1977 at Pennsylvania State University. Professor Walter B. Weimer, who organized at this conference a panel that had The Sensory Order as its spe- cial subject, deserves credit for having contributed to the increase in interest Hayek’s Inquiry into the Foundations of Theoretical Psychology enjoys since the 1980s, after decades during which it was largely ignored. In order to maintain the character of the contributions collected here as