Beginning with his doctoral dissertation in 1950 which introduced the study of event perception and the application of vector analysis to perception, Gunnar Johansson has been a seminal figure in the field of perception. His work on biomechanical motion in the 1970s challenged conventional notions and stimulated great interest among experimental psychologists and students of machine vision. In 1989 Johansson published his latest theoretical synthesis, the optic sphere theory, an innovative conceptualization that goes beyond his earlier proposals. This volume presents -- for the first time -- an extensive precis of the out-of-print classic 1950 monograph prepared by Johansson. It also includes a representative set of Johansson's important publications produced over the ensuing four decades. These papers served as the springboard for a set of original essays by a distinguished group of North American and European scientists. Part critical commentary, part elaboration, and part seeking new directions, the entire collection makes for a singularly rich treatment of the perception of objects and events.

First published in 1978. Since World War II the field of perception has developed in two major directions. The first evolved out of the traditional psychophysical approach and is manifest today in the new psychophysics. The second direction is in the increasing bond between the fields of perception and cognition. This volume grew out of the context of this second direction, a particular product of two workshops (held in the Spring of 1974 and 1975), organized by the Committee on Cognitive Research of the Social Science Research Council. The Committee on Cognition was organized in 1971 to encourage communication and interaction on specific problems in the area of cognition among the various social sciences.

"Adverbs, Events, and Other Things" treats issues in the semantics of manner adverbs. Part I takes up the Davidsonian claim that manner adverbs are predicates of events. The book investigates the subtle interplay of event individuation and various kinds of event modification and claims that manner adverbs play a core rôle in singling out both simple and complex events. Part II of the book is devoted to word order phenomena involving manner adverbs in German. Presenting a general theory of predication structure for German sentences, the author shows how the position of manner adverbs - in interplay with other factors - determines the division of an utterance into topic and comment. She thereby gives semantic evidence in favour of the claim that manner adverbs in German have a syntactic base position.

Visual illusions are compelling phenomena that draw attention to the brain's capacity to construct our perceptual world. The Compendium is a collection of over 100 chapters on visual illusions, written by the illusion creators or by vision scientists who have investigated mechanisms underlying the phenomena. --

This book brings together over 25 years of Arindam Chakrabarti's original research in philosophy on issues of epistemology, metaphysics, and philosophy of mind. Organized under the three basic concepts of a thing out there in the world, the self who perceives it, and other subjects or selves, his work revolves around a set of realism links. Examining connections between metaphysical stances toward the world, selves, and universals, Chakrabarti engages with classical Indian and modern Western philosophical approaches to a number of live topics including the refutation of idealism; the question of the definability of truth, and the possibility of truths existing unknown to anyone; the existence of non-conceptual perception; and our knowledge of other minds. He additionally makes forays into fundamental questions regarding death, darkness, absence, and nothingness. Along with conceptual clarification and progress towards alternative solutions to these substantial philosophical problems, Chakrabarti demonstrates the advantage of doing philosophy in a cosmopolitan fashion. Beginning with an analysis of the concept of a thing, and ending with an analysis of the concept of nothing, Realisms Interlinked offers a preview of a future metaphysics, epistemology, and philosophy of mind without borders.

Evaluation is ubiquitous. Indeed, it isn't an exaggeration to say that we assess actions, character, events, and objects as good, cruel, beautiful, etc., almost every day of our lives. Although evaluative judgement - for instance, judging that an institution is unjust - is usually regarded as the paradigm of evaluation, it has been thought by some philosophers that a distinctive and significant kind of evaluation is perceptual. For example, in aesthetics, some have claimed that adequate aesthetic judgement must be grounded in the appreciator's first hand-hand perceptual experience of the item judged. In ethics, reference to the existence and importance of something like ethical perception is found in a number of traditions, for example, in virtue ethics and sentimentalism. This volume brings together philosophers working in aesthetics, epistemology, ethics, philosophy of mind, and value theory to investigate what we call 'evaluative perception'. Specifically, they engage with (1) Questions regarding the existence and nature of evaluative perception: Are there perceptual experiences of values? If so, what is their nature? Are perceptual experiences of values sui generis? Are values necessary for certain kinds of perceptual experience? (2) Questions about epistemology: Can evaluative perceptual experiences ever justify evaluative judgements? Are perceptual experiences of values necessary for certain kinds of justified evaluative judgements? (3) Questions about value theory: Is the existence of evaluative perceptual experience supported or undermined by particular views in value theory? Are particular views in value theory supported or undermined by the existence of evaluative perceptual experience?

This volume focuses on Berkeley's doctrine of signs. The 'doctrine of signs' refers to the use that Berkeley makes of a phenomenon that is central to a great deal of everyday discourse: one whereby certain perceivable entities are made to stand in for (as 'signs' of) something else. Things signified might be other perceivable entities or they might also be unperceivable notions - such as the meanings of words. From his earliest published work, A New Theory of Vision in 1710, to those works written towards the end of life, including Alciphron in 1732, Berkeley is at pains to emphasise the crucial role that sign-usage, particularly (but not only) in language, plays in human life. Berkeley also connects sign-usage to our (human) relationship with God: an issue that was right of the heart of his philosophical project. The contributions in this volume explore the myriad ways that Berkeley built on such insights to better understand a range of philosophical issues - issues of epistemology, language, perception, mental representation, mathematics, science, and theology. The aim of this volume is to establish that the doctrine of signs can be seen as one of the unifying themes of Berkeley's philosophy. What's more, this theme is one which spans his whole philosophical corpus; not just his best-known works like the Principles and the Three Dialogues, but also his works on science, mathematics, and theology.