Biographical

When future historians turn to examine the major intellectual accomplishments of the twentieth century, they will undoubtedly give a special place to the extraordinary achievements in biology, achievements that have revolutionized our understanding of life's processes and of disease. Important intimations of what was to happen in biology were already apparent in the second half of the nineteenth century. Darwin had delineated the evolution of animal species, Mendel had discovered some basic rules about inheritance, and Weissman, Roux, Driesch, de Vries, and other embryologists were beginning to decipher how an organism develops from a single cell. What was lacking at the end of the nineteenth century, however, was an overarching sense of how these bold advances were related to one another.

Edward O. Wilson is the founder of Sociobiology and is widely regarded to be the world's most famous living scientist. Recently, Wilson seized the word "consilience" from deep within the history of science and reintroduced it into our language by emblazoning it across the cover of his latest best-seller, Consilience: The Unity of Knowledge. In this book, Wilson offers to unify the "two cultures" of literature and science for once and forever, as "the way to renew the crumbling structure of the liberal arts" (12). It is an offer many of my colleagues find attractive, for Wilson carries enormous authority both as a natural scientist and as an eloquent speaker for the environmentally appealing concepts of "biophilia" and "biodiversity." He has well-nigh captured the Thoreau Society: for example, in June 1998 he joined Bill and Hillary Clinton as a featured guest at the opening of the Thoreau Institute, delivering a brief address which has been reprinted as the Preface to the Thoreau Society's collection of Thoreau's writings on science, which I edited and entitled Material Faith.

"The basic thesis of gestalt theory might be formulated thus: there are contexts in which what is happening in the whole cannot be deduced from the characteristics of the separate pieces, but conversely; what happens to a part of the whole is, in clearcut cases, determined by the laws of the inner structure of its whole." Max Wertheimer, Gestalt theory.
Social Research, 11 (translation of lecture at the Kant Society, Berlin, 1924).

Knight Dunlap (1875-1949) has been called the "forgotten man" of American psychology. While some behavior therapists associate his name with "negative practice," he is probably unknown to the majority of psychologists. Although it is highly unlikely that Dunlap will ever be a household name, this page attempts to redress the neglect of Dunlap's many contributions to the history of American psychology.

While Müller ended his life as the experimentalist, he did not start out as one. His second doctoral subject was experimental physics (taught by Wilhelm Weber), but his dissertation of 1873 and his habilitation of 1876 (Müller, 1878a) would today be book-length versions of a Psychological Review articles, since there is no original data in either one. In the Habilitation, he defined much of the standard psychophysics that has been passed down to students (Haupt, 1995); recommended using both ascending and descending methods of limits to limit bias and the method of constant stimuli, which he extensively developed with the Müller weights, would seem to be another method designed to improve the usefulness of a threshold, but he did not provide any new experimental data. In the early papers on memory by Müller and Schumann, he seems to have originated a number of important procedural controls for the study of association. Kroh (1935, p. 155) puts Müller in the same group (first generation of psychologists) with Stumpf and Külpe, for which the transition to being an experimentalist was a significant step; a step that was not required for anyone trained as a physicist (Fechner) or physiologist (Wundt).

Galton and subsequent investigators find wide divergences in people's subjective reports of mental imagery. Such individual differences might be taken to explain the peculiarly irreconcilable disputes over the nature and cognitive significance of imagery which have periodically broken out among psychologists and philosophers. However, to so explain these disputes is itself to take a substantive and questionable position on the cognitive role of imagery. This article distinguishes three separable issues over which people can be "for" or "against" mental images. Conflation of these issues can lead to theoretical differences being mistaken for experiential differences, even by theorists themselves. This is applied to the case of John B. Watson, who inaugurated a half-century of neglect of image psychology. Watson originally claimed to have vivid imagery; by 1913 he was denying the existence of images. This strange reversal, which made his behaviorism possible, is explicable as a "creative misconstrual" of Dunlap's "motor" theory of imagination.

This site includes biographical profiles of people who have influenced the development of intelligence theory and testing, in-depth articles exploring current controversies related to human intelligence, and resources for teachers.

Hundreds of researchers have made significant contributions to cognitive science. What follows is a set of short academic biographies of people whom we believe should be counted on anyone's list of important contributors; the work of many of them is discussed in the Companion. Not every important figure is included; and some people are included, especially from the history of cognitive science, who would not describe, or could not have described, themselves as cognitive scientists despite their considerable impact on the field. We trust that the list will be useful to students doing research in cognitive science and to readers who wish to familiarize themselves with the work of specific contributors.

Few figures have had so decisive and fundamental an influence on the course of modern cultural history as Sigmund Freud. Yet few figures also have inspired such sustained controversy and intense debate. Freud's legacy continues to be hotly contested, as demonstrated by the controversy attracted by this exhibition even before its opening. Our notions of identity, memory, childhood, sexuality, and, most generally, of meaning have been shaped in relation to--and often in opposition to--Freud's work. The exhibition examines Freud's life and his key ideas and their effect upon the twentieth century.

These pages are devoted to the presentation and promotion of the Rorschach method, concentrating on the way it has been practiced within the classical European tradition - from Hermann Rorschach himself in 1921, via Ewald Bohm in the 1950's, 1960's and 1970's, and to the contemporary workers in the Rorschach-Bohm tradition. You can here find basic information about Hermann Rorschach, about the different Rorschach traditions and the essential differences between them, and about the current scientific debate about the Rorschach test. There are also some links to other Web pages devoted to the Rorschach method.