On the occasion of a first conference on Cognitive Science, it seems appropriate to review the basis of common understanding between the various disciplines. In my estimate, the most fundamental contribution so far of artificial intelligence and computer science to the joint enterprise of cognitive science has been the notion of a physical symbol system, i.e., the concept of a broad class of systems capable of having and manipulating symbols, yet realizable in the physical universe. The notion of symbol so (...) defined is internal to this concept, so it becomes a hypothesis that this notion of symbols includes the symbols that we humans use every day of our lives. In this paper we attempt systematically, but plainly, to lay out the nature of physical symbol systems. Such a review is in ways familiar, but not thereby useless. Restatement of fundamentals is an important exercise. (shrink)

Whitehead's system may be interpreted as a majestic attempt at recasting Leibniz's theory of monads in terms of sounder ontological categories. After a brief introductory section on the sources of Whitehead's knowledge of Leibniz's philosophy, the paper explains why Whitehead turned to Leibniz for metaphysical inspiration. Attention then shifts to Whitehead's understanding of the problems involved with Leibniz's theory of monads and his alternative explanation of monadic causation. Whitehead's endeavour to install windows in Leibniz's monads may not be entirely convincing, (...) but there are philosophical gems scattered here and there in his analyses – true moments of insight that repay close examination. (shrink)

The epistemic stances of both Whitehead and the Book of Changes are founded on the assumption that process is reality; there are important resonances with respect to perception, meaning and significance. Such a process-oriented approach is productive for developing non-representational and non-dualistic theories in the fields of epistemology, philosophy of language and philosophy of mind. An exploration of these resonances will further provide an appropriate foundation for dialogue between the philosophy of the Book of Changes and that of contemporary Euro-American (...) philosophy. The important differences between the Book of Changes and Whiteheadian philosophy will also become apparent. (shrink)

William Alston’s Theory of Appearing has attracted considerable attention in recent years, both for its elegant interpretation of direct realism in light of the presentational character of perceptual experience and for its central role in his defense of the justificatory force of Christian mystical experiences. There are different ways to account for presentational character, however, and in this article we argue that a superior interpretation of direct realism can be given by a theory of perception as dynamic engagement. The conditions (...) for dynamic engagement are such that there can be no absolute discontinuity between individual perceptual experiences and more public forms of inquiry, and this requirement has radical consequences for the prima facie justificatory force of religious experience. (shrink)

Whitehead's metaphysics contains an accurate portrayal of concrete human existence - one which can serve as a ground for criticizing the abstractions into which liberalism has fallen. His critical individualism, his insistence both on the individual as the seat of all value and on our essential connectedness to one another in modern society, is a call for liberalism to restore concrete meaning to its fundamental notions of individuality and freedom. However, his suggestions that the core values of liberalism can be (...) actualized if we but reaffirm Plato's ancient equation of knowledge with virtue rests on an optimism that is difficult to sustain apart from a compensatory metaphysical dogma. We can appropriate Whitehead's criticism of liberalism, but if we can no longer convince ourselves of a metaphysical vision that supports faith in Plato's equation, we must look elsewhere for suggestions as to how liberalism can be revitalized. (shrink)

This paper provides an overview of the origins, vicissitudes, and abandonment of ‘metapsychology’, the psycho-biological scientific core of the Freudian opus, and introduces the authors’ key revisions. Although couched in the language of metaphor and analogy from 19th century physics, the conceptual foundations of Freud’s theories contained the seeds of a bio-semiotic theory of mind and of human nature in the natural world. Its updated, modernized, version opens the door to an inter-penetrative epistemology leading to universal principles of logical form, (...) applicable to all types of vital inter-action. (shrink)

In recent years, there have been some attempts to defend the legitimacy of a non-inductive generative logic of discovery whose strategy is to analyze a variety of constraints on the actual generation of explanatory hypotheses. These proposed new theories, however, are only weakly generative (relying on sophisticated processes of elimination) rather than strongly generative (embodying processes of correction).This paper develops a strongly generative theory which holds that we can come to know something new only as a variant of what we (...) already know — and that the novelty of this variant is not thereby eliminated nor beyond our powers of characterization, a double requirement that is vital for resolving the Meno paradox. In this light, the discovery of a new hypothesis is taken as the correction of an antecedent hypothesis in response to the discrepancies between the predictions generated by that antecedent hypothesis and the desired result (e.g. the actual data to be explained). This process comprises two parallel operations: the first, which demonstrates the positive role of the facts in generating new explanations, involves a mapping between multiple hypotheses and sets of predictions generated from those hypotheses, for the purpose of taking the actual data as a determinable variant of neighboring sets of predictions. This mapping permits the facts to indicate how corrective adjustments in the working hypothesis should be made; the second operation, which demonstrates the positive role of explanations in generating new facts, involves a mapping between differently construed versions of the actual data and the conceptualizations derived from those perceptual versions, for the purpose of taking the working hypothesis as a determinable variant of these neighboring conceptualizations. This mapping permits a given hypothesis to generate predictions increasingly closer to the actual facts. (shrink)