This is a book about how we see: the environment around us (its surfaces, their layout, and their colors and textures); where we are in the environment; whether or not we are moving and, if we are, where we are going; what things are good for; how to do things (to thread a needle or drive an automobile); or why things look as they do.The basic assumption is that vision depends on the eye which is connected to the brain. The (...) author suggests that natural vision depends on the eyes in the head on a body supported by the ground, the brain being only the central organ of a complete visual system. When no constraints are put on the visual system, people look around, walk up to something interesting and move around it so as to see it from all sides, and go from one vista to another. That is natural vision—and what this book is about. (shrink)

Both the psychology of perception and the philosophy of perception seem to show a new face when the process is considered at its own level, distinct from that of sensation. Unfamiliar conceptions in physics, anatomy, physiology, psychology, and phenomenology are required to clarify the separation and make it plausible. But there have been so many dead ends in the effort to solve the theoretical problems of perception that radical proposals may now be acceptable. Scientists are often more conservative than philosophers (...) of science. I end, therefore, as I began, with a plea for help. (shrink)

For centuries psychologists have been trying to explain how a man or an animal could perceive space. They have thought of space as having three dimensions and the difficulty was how an observer could see the third dimension. For depth, as Bishop Berkeley asserted at the outset of the New Theory of Vision (1709), “is a line endwise to the eye which projects only one point in the fund of the eye.” Space was its dimensions. It was empty save for (...) a collection of objects or bodies. For an observer, the objects were in different directions at various distances and the question was how these distances could be detected. For two hundred and fifty years we have tried to answer this question and failed. The explanations have been controversial, contradictory, and confused. (shrink)

The Ontology for Biomedical Investigations (OBI) is an ontology that provides terms with precisely defined meanings to describe all aspects of how investigations in the biological and medical domains are conducted. OBI re-uses ontologies that provide a representation of biomedical knowledge from the Open Biological and Biomedical Ontologies (OBO) project and adds the ability to describe how this knowledge was derived. We here describe the state of OBI and several applications that are using it, such as adding semantic expressivity to (...) existing databases, building data entry forms, and enabling interoperability between knowledge resources. OBI covers all phases of the investigation process, such as planning, execution and reporting. It represents information and material entities that participate in these processes, as well as roles and functions. Prior to OBI, it was not possible to use a single internally consistent resource that could be applied to multiple types of experiments for these applications. OBI has made this possible by creating terms for entities involved in biological and medical investigations and by importing parts of other biomedical ontologies such as GO, Chemical Entities of Biological Interest (ChEBI) and Phenotype Attribute and Trait Ontology (PATO) without altering their meaning. OBI is being used in a wide range of projects covering genomics, multi-omics, immunology, and catalogs of services. OBI has also spawned other ontologies (Information Artifact Ontology) and methods for importing parts of ontologies (Minimum information to reference an external ontology term (MIREOT)). The OBI project is an open cross-disciplinary collaborative effort, encompassing multiple research communities from around the globe. To date, OBI has created 2366 classes and 40 relations along with textual and formal definitions. The OBI Consortium maintains a web resource providing details on the people, policies, and issues being addressed in association with OBI. (shrink)

Gathering information from both published and unpublished material and interviews with Gibson's family, colleagues, and friends, Reed (philosophy, Drexel U.) chronicles Gibson's life and intellectual development and his attempts to synthesize several contrasting intellectual traditions into what he ultimately called an "ecological approach" to psychology. Annotation(c) 2003 Book News, Inc., Portland, OR (booknews.com).

Bringing about desirable collisions (making interceptions) and avoiding unwanted collisions are critically important sensorimotor skills, which appear to require us to estimate the time remaining before collision occurs (time-to-collision). Until recently the theoretical approach to understanding time-to-collision estimation has been dominated by the tau-hypothesis, which has its origins in J.J. Gibson’s ecological approach to perception. The hypothesis proposes that a quantity (tau), present in the visual stimulus, provides the necessary time-to-collision information. Empirical results and formal analyses have now accumulated (...) to demonstrate conclusively that the tau-hypothesis is false. This article describes an alternative approach that is based on recent data showing that the information used in judging time-to-collision is task- and situation-dependent, is of many different origins (of which tau is just one) and is influenced by the information-processing constraints of the nervous system. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:James J. Gibson's Ecological Approach:Perceiving What ExistsWilliam M. Mace (bio)Environmental Philosophy and EpistemologyThe purpose of this paper is to help an audience attracted to environmental philosophy get to the core of Gibson's system in a compact form and to appreciate the necessity for an account of the environment in epistemology. I hope to show that Gibson's is a consistent and scientifically progressive account of knowing (...) that gives the environment its due and that this is not a simple matter of fiat but a call to extended scientific investigation. I want to stress that Gibson's work is scientifically progressive in the sense that it has consistently opened new avenues for research. If one could be assured tomorrow that Gibson was correct and his critics wrong, the ecological psychology enterprise would not have to be shut down with nothing left to do. The goal of the enterprise, certainly for Gibson, was not to be declared a winner but to open doors for discovery. Because Gibson has developed a theory of perceiving the environment, it would be worth exploring as an important topic for environmental philosophers covering a wide range of issues. It offers an intriguing, environmentally based, grounding for epistemology; it offers ways to deal [End Page 195] with practical issues within "pure science"; and it is open to reorganizing ways to conceptualize problems beyond epistemology.Gibson developed a richly articulated system that grew steadily over a period of 50 years, 1929 to 1979, which he devoted to "puzzling over" the "perplexities" of vision (1979, xiii). From Gibson's standpoint, knowledge begins with perception, and perception is perceiving the environment. The environment, for Gibson, is at least as essential as the brain to the existence and exercise of "the mind."As an empiricist, knowledge is based on perception for Gibson. But perception, at root, turns out to be perception of the environment. Entities like sense data and representations become "after the fact" curiosities for Gibson, and have no role to play in the foundations of perceptual experience and, a fortiori, knowledge. If Gibson is correct, then scientific accounts of perception must converge on environmental perception. A philosopher whose primary focus is epistemology, and who works within Gibson's system, would perforce be an environmental philosopher—not (first) because of a special concern for the environment, but because an adequate appreciation of relevant facts requires it. Of great importance to environmental philosophers is that Gibson not only provides an account of perceiving grounded in access to environmental properties, but he establishes a basis for perceiving this particular world as a specific arrangement of surfaces. The world we perceive, according to Gibson, is a connected, public world that we share. It is, again, the world, the logical individual world and not an abstraction. This is not an account of the experience of abstract shapes, distances, and motions. It is a system in which travelers can visit the pyramids and in which I can trip over your garbage.Is there a symmetric direction of influence? Just as a commitment to understanding knowledge scientifically and philosophically can lead one to focal considerations of the environment, could a deep concern for the environment as a value lead to the serious study of perception and, more broadly, epistemology? It seems entirely plausible. Gibson's is a "yin and yang" system of scientific complementarities beginning with animal and environment and extending to knowledge and value (in his concept of affordance). In each complementarity, the terms are differentiable but not entirely independent. Animals and their environments are different entities and should not be confused with one another, but they also are so [End Page 196] mutually dependent that one should not imagine a thorough account of one without the other. In like manner, objects and value (first through use) are not independently comprehensible in Gibson's system. This is a theme worthy of careful examination of detailed examples. I am not doing that in this paper, but hope that enough of the flavor of Gibson's work will come through to allow a reader to understand how one might be steered to epistemology from an initial concern with environment and values and... (shrink)

In lieu of an abstract, here is a brief excerpt of the content:James J. Gibson's Ecological Approach:Perceiving What ExistsWilliam M. Mace (bio)Environmental Philosophy and EpistemologyThe purpose of this paper is to help an audience attracted to environmental philosophy get to the core of Gibson's system in a compact form and to appreciate the necessity for an account of the environment in epistemology. I hope to show that Gibson's is a consistent and scientifically progressive account of knowing (...) that gives the environment its due and that this is not a simple matter of fiat but a call to extended scientific investigation. I want to stress that Gibson's work is scientifically progressive in the sense that it has consistently opened new avenues for research. If one could be assured tomorrow that Gibson was correct and his critics wrong, the ecological psychology enterprise would not have to be shut down with nothing left to do. The goal of the enterprise, certainly for Gibson, was not to be declared a winner but to open doors for discovery. Because Gibson has developed a theory of perceiving the environment, it would be worth exploring as an important topic for environmental philosophers covering a wide range of issues. It offers an intriguing, environmentally based, grounding for epistemology; it offers ways to deal [End Page 195] with practical issues within "pure science"; and it is open to reorganizing ways to conceptualize problems beyond epistemology.Gibson developed a richly articulated system that grew steadily over a period of 50 years, 1929 to 1979, which he devoted to "puzzling over" the "perplexities" of vision (1979, xiii). From Gibson's standpoint, knowledge begins with perception, and perception is perceiving the environment. The environment, for Gibson, is at least as essential as the brain to the existence and exercise of "the mind."As an empiricist, knowledge is based on perception for Gibson. But perception, at root, turns out to be perception of the environment. Entities like sense data and representations become "after the fact" curiosities for Gibson, and have no role to play in the foundations of perceptual experience and, a fortiori, knowledge. If Gibson is correct, then scientific accounts of perception must converge on environmental perception. A philosopher whose primary focus is epistemology, and who works within Gibson's system, would perforce be an environmental philosopher—not (first) because of a special concern for the environment, but because an adequate appreciation of relevant facts requires it. Of great importance to environmental philosophers is that Gibson not only provides an account of perceiving grounded in access to environmental properties, but he establishes a basis for perceiving this particular world as a specific arrangement of surfaces. The world we perceive, according to Gibson, is a connected, public world that we share. It is, again, the world, the logical individual world and not an abstraction. This is not an account of the experience of abstract shapes, distances, and motions. It is a system in which travelers can visit the pyramids and in which I can trip over your garbage.Is there a symmetric direction of influence? Just as a commitment to understanding knowledge scientifically and philosophically can lead one to focal considerations of the environment, could a deep concern for the environment as a value lead to the serious study of perception and, more broadly, epistemology? It seems entirely plausible. Gibson's is a "yin and yang" system of scientific complementarities beginning with animal and environment and extending to knowledge and value (in his concept of affordance). In each complementarity, the terms are differentiable but not entirely independent. Animals and their environments are different entities and should not be confused with one another, but they also are so [End Page 196] mutually dependent that one should not imagine a thorough account of one without the other. In like manner, objects and value (first through use) are not independently comprehensible in Gibson's system. This is a theme worthy of careful examination of detailed examples. I am not doing that in this paper, but hope that enough of the flavor of Gibson's work will come through to allow a reader to understand how one might be steered to epistemology from an initial concern with environment and values and... (shrink)

Nature of the problem: Testimony from scientists. Reflex action and theism (1881) by W. James. The organization of thought (1916) by A.N. Whitehead. The changing scientific scene 1900-1950 (1952) by J.B. Conant. A note on methods of analysis (1943) by H.J. Muller. The way things are (1959) by P.W. Bridgman. A definition of style (1948) by J.R. Oppenheimer.--Consequences of the problem: Testimony from artists and writers. Existentialism (1947) by J.-P. Sartre. The testimony of modern art (1957) by W. Barrett. (...) Parts of speech and punctuation (1935) by G. Stein. The waves (1931) by V. Woolf. The imperfect paradise, by W. Stevens. A note on style and the limits of language, by W. Gibson. (shrink)

Kant's Religion within the Boundaries of Mere Reason is one of the great modern examinations of religion's meaning, function and impact on human affairs. In this volume, the first complete English-language commentary on the work, James J. DiCenso explains the historical context in which the book appeared, including the importance of Kant's conflict with state censorship. He shows how the Religion addresses crucial Kantian themes such as the relationship between freedom and morality, the human propensity to evil, the status (...) of historical traditions in relation to ethical principles, and the interface between individual ethics and social institutions. The major arguments are clearly and precisely explained, and the themes are highlighted and located within Kant's mature critical philosophy, especially his ethics. The commentary will be valuable for all who are interested in the continuing relevance of religion for contemporary inquiries into ethics, public institutions and religious traditions. (shrink)

This volume -- a companion to Thomas Reid: Selected Philosophical Writings (2012) -- makes available material from Thomas Reid's autograph manuscripts and student notes of his lectures. It includes an introductory essay by Nicholas Wolterstorff.