According to the dominant computational approach in cognitive science, cognitive agents are digital computers; according to the alternative approach, they are dynamical systems. This target article attempts to articulate and support the dynamical hypothesis. The dynamical hypothesis has two major components: the nature hypothesis (cognitive agents are dynamical systems) and the knowledge hypothesis (cognitive agents can be understood dynamically). A wide range of objections to this hypothesis can be rebutted. The conclusion is that cognitive systems may well be dynamical systems, (...) and only sustained empirical research in cognitive science will determine the extent to which that is true. (shrink)

The aim of this paper is to establish the logically necessary preconditions for the existence of self-awareness in an artificial or a natural agent. We examine the terms, agent, situated, embodied, embedded, and representation, as employed ubiquitously in cognitive science, attempting to clarify their meaning and the limits of their use. We discuss the minimal conditions for an agent’s environment constituting a ‘world’ and reject most, though not all, types of virtual world. We argue that to qualify as genuinely situated (...) an agent should function in real time within the dynamic world we inhabit, or some close simulacrum of it. We show that embodied agents will possess or evolve local co-ordinate systems, or points of view, locating, identifying and interacting with objects relative to their current position in space-time, and we discuss various types of embodiment, arguing that most current situated and embodied systems are too limited to be candidates for even the most minimal claim to self-identity. We argue that a truly autonomous agent has to be active in its participation with the world, able to synthesise and order its internal representations from its own point of view, and to do this effectively the agent will have to be embedded. To this end we propose a six point definition of embeddedness. Ultimately we argue for a philosophical-cum-cognitive science model of the self that satisfies essential elements of both sets of definitions of the term. (shrink)

In this paper we consider the concept of a self-aware agent. In cognitive science agents are seen as embodied and interactively situated in worlds. We analyse the meanings attached to these terms in cognitive science and robotics, proposing a set of conditions for situatedness and embodiment, and examine the claim that internal representational schemas are largely unnecessary for intelligent behaviour in animats. We maintain that current situated and embodied animats cannot be ascribed even minimal self-awareness, and offer a six point (...) definition of embeddedness, constituting minimal conditions for the evolution of a sense of self. This leads to further analysis of the nature of embodiment and situatedness, and a consideration of whether virtual animats in virtual worlds could count as situated and embodied. We propose that self-aware agents must possess complex structures of self-directed goals; multi-modal sensory systems and a rich repertoire of interactions with their worlds. Finally, we argue that embedded agents will possess or evolve local co-ordinate systems, or points of view, relative to their current positions in space and time, and have a capacity to develop an egocentric space. None of these capabilities are possible without powerful internal representational capacities. (shrink)

Artificial intelligence research has foundered on the issue of representation. When intelligence is approached in an incremental manner, with strict reliance on interfacing to the real world through perception and action, reliance on representation disappears. In this paper we outline our approach to incrementally building complete intelligent Creatures. The fundamental decomposition of the intelligent system is not into independent information processing units which must interface with each other via representations. Instead, the intelligent system is decomposed into independent and parallel activity (...) producers which all interface directly to the world through perception and action, rather than interface to each other particularly much. The notions of central and peripheral systems evaporateeverything is both central and peripheral. Based on these principles we have built a very successful series of mobile robots which operate without supervision as Creatures in standard office environments. (shrink)

Since its publication in 1959, Individuals has become a modern philosophical classic. Bold in scope and ambition, it continues to influence debates in metaphysics, philosophy of logic and language, and epistemology. Peter Strawson's most famous work, it sets out to describe nothing less than the basic subject matter of our thought. It contains Strawson's now famous argument for descriptive metaphysics and his repudiation of revisionary metaphysics, in which reality is something beyond the world of appearances. Throughout, Individuals advances some highly (...) influential and controversial ideas, such as 'non-solipsistic consciousness' and the concept of a person a 'primitive concept'. (shrink)

This book argues that Kant's transcendental idealism has been misinterpreted: it denies not simply the super-sensory reality of space, time, and appearances, but their reality outside imagination as well. After adducing extensive and explicit textual evidence in its favor, Waxman shows this interpretation to be essential to the Transcendental Deduction, the affirmation of things in themselves, and the attempt to surmount Hume's scepticism. He further argues that Kant's much-neglected claim that, besides himself, "no psychologist has so much as even thought (...) that the imagination might be a necessary constituent of perception," should be construed so that even our consciousness of sensation itself (visual, tactile, etc.) is impossible without imagination. A compelling and original contribution to Kantian scholarship, Kant's Model of the Mind will also bear close examination by students and scholars of Hume, the philosophy of mind, and the philosophy of science. (shrink)

Examines the findings of scientific research into the thought processes of animals and argues that animals are capable of conscious thought.

University of Chicago Press, 2001 Review by Adriano Palma, Ph.D. on Aug 1st 2001 Volume: 5, Number: 31.

Transcending the overplayed debate between utilitarians and rights theorists, the book offers a fresh methodological approach with specific constructive conclusions about our treatment of animals. David DeGrazia provides the most thorough discussion yet of whether equal consideration should be extended to animals' interests, and examines the issues of animal minds and animal well-being with an unparalleled combination of philosophical rigor and empirical documentation. This book is an important contribution to the field of animal ethics.

Table of Contents Acknowledgments 1 Self-Consciousness and the Body: An Interdisciplinary Introduction by Naomi Eiland, Anthony Marcel and José Luis Bermúdez 2 The Body Image and Self-Consciousness by John Campbell 3 Infants’ Understanding of People and Things: From Body Imitation to Folk Psychology by Andrew N. Meltzoff and M. Keith Moore 4 Persons, Animals, and Bodies by Paul F. Snowdon 5 An Ecological Perspective on the Origins of Self by George Butterworth 6 Objectivity, Causality, and Agency by Thomas Baldwin 7 (...) At Two with Nature: Agency and the Development of Self-World Dualism by James Russell 8 Ecological Perception and the Notion of a Nonconceptual Point of View by José Luis Bermúdez 9 Proprioception and the Body Image by Brian O’Shaughnessy 10 Awareness of One’s Own Body: An Attentional Theory of Its Nature, Development, and Brain Basis by Marcel Kinsbourne 11 Body Schema and Intentionality by Shaun Gallagher 12 Living without Touch and Peripheral Information about Body Position and Movement: Studies with Deafferented Subjects by Jonathan Cole and Jacques Paillard 13 Bodily Awareness: A Sense of Ownership by M. G. F. Martin 14 Bodily Awareness and the Self by Bill Brewer 15 Introspection and Bodily Self-Ascription by Quassim Cassam 16 Consciousness and the Self by Naomi Eilan Contributors Index. (shrink)

We describe a project to capitalize on newly available levels of computational resources in order to understand human cognition. We are building an integrated physical system including vision, sound input and output, and dextrous manipulation, all controlled by a continuously operating large scale parallel MIMD computer. The resulting system will learn to "think" by building on its bodily experiences to accomplish progressively more abstract tasks. Past experience suggests that in attempting to build such an integrated system we will have to (...) fundamentally change the way artificial intelligence, cognitive science, linguistics, and philosophy think about the organization of intelligence. We expect to be able to better reconcile the theories that will be developed with current work in neuroscience. (shrink)