Perceptual Knowledge

This book grew out of the lectures that I prepared for my students in epis temology at SUNY College at Brockport beginning in 1974. The conception of the problem of perception and the interpretation of the sense-datum theory and its supporting arguments that are developed in Chapters One through Four originated in these lectures. The rest of the manuscript was first written during the 1975-1976 academic year, while I held an NEH Fellowship in Residence for College Teachers at Brown University, and during the ensuing summer, under a SUNY Faculty Research Fellowship. I wish to express my sincere gratitude to the National Endowment for the Humanities and to the Research Foundation of the State University of New York for their support of my research. I am grateful to many former students, colleagues, and friends for their stimulating, constructive comments and criticisms. Among the former stu dents whose reactions and objections were most helpful are Richard Motroni, Donald Callen, Hilary Porter, and Glenn Shaikun. Among my colleagues at Brockport, I wish to thank Kevin Donaghy and Jack Glickman for their comments and encouragement. I am indebted to Eli Hirsch for reading and commenting most helpfully on the entire manuscript, to Peter M. Brown for a useful correspondence concerning key arguments in Chapters Five and Seven, to Keith Lehrer for a criticism of one of my arguments that led me to make some important revisions, and to Roderick M.

This book explores visual object recognition and introduces a collaborative model, codified as the "Perceptual Expertise Network" (PEN). It focuses on delineating the principles of high-level visual learning that can account for how different object categories are processed and associated with spatially localized activity in the primate brain. It address questions such as how expertise develops, whether there are different kinds of experts, whether some disorders such as autism or prosopagnosia can be understood as a lack or loss of expertise, and how conceptual and perceptual information interact when experts recognize and categorize objects. The research and results that have been generated by these questions are presented here, along with other questions, background information, and extant issues that have emerged from recent studies.

One of the hardest problems in the history of Western philosophy has been to explain whether and how experience can provide knowledge (or even justification for belief) about the objective world outside the experiencer's mind. A prominent brand of scepticism has precisely denied that experience can provide such knowledge. How, for instance (these sceptics ask) can I know that my experiences are not produced in me by a powerful demon (or, in a modern twist on that traditional Cartesian scenario, by a supercomputer)? This volume, originating from the research project on Basic Knowledge recently concluded at the Northern Institute of Philosophy, presents new essays on scepticism about the senses written by some of the most prominent contemporary epistemologists. They approach the sceptical challenge by discussing such topics as the conditions for perceptual justification, the existence of a non-evidential kind of warrant and the extent of one's evidence, the epistemology of inference, the relations between justification, probability and certainty, the relevance of subjective appearances to the epistemology of perception, the role that broadly pragmatic considerations play in epistemic justification, the contents of perception, and the function of attention. In all these cases, the papers show how philosophical progress on foundational issues can improve our understanding of and possibly afford a solution to a historically prominent problem like scepticism.

What is knowledge? Where does it come from? What kinds of knowledge are there? Can we know anything at all? This lucid and engaging introduction grapples with these central questions in the theory of knowledge, offering a clear, non-partisan view of the main themes of epistemology. Both traditional issues and contemporary ideas are discussed in sixteen easily digestible chapters, each of which conclude with a useful summary of the main ideas discussed, study questions, annotated further reading and a guide to internet resources. Each chapter also features text boxes providing bite-sized summaries of key concepts and major philosophers, and clear and interesting examples are used throughout. The book concludes with an annotated guide to general introductions to epistemology, a glossary of key terms, and a summary of the main examples used in epistemology, This an ideal first textbook in the theory of knowledge for undergraduates coming to philosophy for the first time. The third edition has been revised and updated throughout and features two new chapters, on religious knowledge and scientific knowledge, as part of a whole new section on what kinds of knowledge there are. In addition, the text as a whole has been refreshed to keep it up to date with current developments.

This book provides an accessible and up-to-date discussion of contemporary theories of perceptual justification that each highlight different factors related to perception, i.e., conscious experience, higher-order beliefs, and reliable processes. The book’s discussion starts from the viewpoint that perception is not only one of our fundamental sources of knowledge and justification, but also plays this role for many less sophisticated animals. It proposes a scientifically informed reliabilist theory which can accommodate this fact without denying that some of our epistemic abilities as human perceivers are special. This allows it to combine many of our intuitions about the importance of conscious experience and higher-order belief with the controversial thesis that perceptual justification is fundamentally non-evidential in character.

This volume presents articles on epistemology and the theory of perception and introduces readers to the various problems that face a successful theory of perceptual knowledge. The contributors include Robert Nozick, Alvin Goldman, H.P. Grice, David Lewis, P.F. Strawson, Frank Jackson, David Armstrong, Fred Dretske, Roderick Firth, Wilfred Sellars, Paul Snowdon, and John McDowell.

Over the centuries the nature of erroneous perception has been thoroughly discussed by Indian philosophers of nearly every school. This text aims to pursue important issues in the discussion of perceptual error. It sheds light on why Indian philosophers devoted so much attention to the problem of erroneous perception but also on why the ontological status of the object of error became such an important issue. The result is a history of the interactions among rival theories of perceptual error.

In this book I present what seem to me (at the moment) to be right an swers to some of the main philosophical questions about the topics men tioned in the title, and I argue for them where I can. I hope that what I say may be of interest both to those who have already studied these ques tions a lot and to those who haven't. There are several important topics in epistemology to which I give little or no attention here - such as the nature of a proposition, the major classifications of propositions (neces sary and contingent, a priori and a posteriori, analytic and synthetic, general and particular), the nature of understanding a proposition, the nature of truth, the nature and justification of the various kinds of in ference (deductive, inductive, and probably others) -but enough is cover ed, to one degree or another, that the book might be of use in a course in epistemology. Earlier versions of some of the material in Chapters II, III, and IV were some of the material in Ginet (1970). An earlier version of the part of Chapter VII on memory-connection was a paper that I profited from reading and discussing in philosophy discussion groups at Cornell Uni versity, SUNY at Albany, and Syracuse University in 1972-73. I do not like to admit how long I have been working on this book.