Kenneth Williford

We argue that the projective geometrical component of the Projective Consciousness Model can account for key aspects of pre-reflective self-consciousness and can relate PRSC intelligibly to another signal feature of subjectivity: perspectival character or point of view. We illustrate how the projective geometrical versions of the concepts of duality, reciprocity, polarity, closedness, closure, and unboundedness answer to salient aspects of the phenomenology of PRSC. We thus show that the same mathematics that accounts for the statics and dynamics of perspectival character also accounts for PRSC. More generally, we argue that introducing higher-level geometrical concepts into the theory of PRSC, and into the theory of consciousness broadly, as the PCM does, promises to break longstanding theoretical impasses and dialectical stalemates.

Giulio Tononi's integrated information theory (IIT) proposes explaining consciousness by directly identifying it with integrated information. We examine the construct validity of IIT's measure of consciousness,phi(Φ), by analyzing its formal properties, its relation to key aspects of consciousness, and its co-variation with relevant empirical circumstances. Our analysis shows that IIT's identification of consciousness with the causal efficacy with which differentiated networks accomplish global information transfer (which is what Φ in fact measures) is mistaken. This misidentification has the consequence of requiring the attribution of consciousness to a range of natural systems and artifacts that include, but are not limited to, large-scale electrical power grids, gene-regulation networks, some electronic circuit boards, and social networks. Instead of treating this consequence of the theory as a disconfirmation, IIT embraces it. By regarding these systems as bearers of consciousnessex hypothesi, IIT is led toward the orbit of panpsychist ideation. This departure from science as we know it can be avoided by recognizing the functional misattribution at the heart of IIT's identity claim. We show, for example, what function is actually performed, at least in the human case, by the cortical combination of differentiation with integration that IIT identifies with consciousness. Finally, we examine what lessons may be drawn from IIT's failure to provide a credible account of consciousness for progress in the very active field of research concerned with exploring the phenomenon from formal and neural points of view.

Several influential philosophers and scientists have advanced a framework, often called Neo-Cartesianism (NC), according to which animal suffering is merely apparent. Drawing upon contemporary neuroscience and philosophy of mind, Neo-Cartesians challenge the mainstream position we shall call Evolutionary Continuity (EC), the view that humans are on a nonhierarchical continuum with other species and are thus not likely to be unique in consciously experiencing negative pain affect. We argue that some Neo-Cartesians have misconstrued the underlying science or tendentiously appropriated controversial views in the philosophy of mind. We discuss recent evidence that undermines the simple neuroanatomical structure-function correlation thesis that undergirds many Neo-Cartesian arguments, has an important bearing on the recent controversy over pain in fish, and places the underlying epistemology framing the debate between NC and EC in a new light that strengthens the EC position.

I argue that there is a version of (quasi-Armstrongian) weak illusionism that intelligibly relates phenomenal concepts and introspective opacity, accounts for the (hard) problem intuitions Chalmers highlights (modal, epistemic, explanatory, and metaphysical), and undermines the most important arguments Chalmers deploys against type-B and type-C materialisms. If this is successful, we can satisfactorily account for the meta-problem of consciousness, mollify our hard problem intuitions, and remain genuine realists about phenomenal experience.

The three classic regress problems related to the Self-Awareness Thesis can all be elegantly resolved by a self-acquaintance postulate. This resolution, however, entails that consciousness has an irreducibly circular structure and that self-acquaintance should not be conceived of in terms of an independent entity bearing an external or mediated relation to itself but rather in terms of a realized relation-instance relating to itself as well as to something other than itself. Consciousness, on this account, has a categorially curious status. It is like a relation-particular hybrid. This can be formalized in terms of the theory of hypersets, which in turn can be used to elucidate the problem of individuality, one source of the conceptual difficulty with adequately characterizing de se content.

In this dissertation, the author articulates and defends a version of the historically important view that all consciousness involves self-consciousness. In Chapter 1, the author defends a certain conception of the role of phenomenology in the theory of consciousness. The author argues that any theory of consciousness must account for the properties that phenomenology reveals consciousness to have. The most important properties in this regard are structural: temporality, synchronic unity, and self-referentiality. It is argued that these properties can be given a rigorous description and that mathematical models of the structure of consciousness can be developed. ;In Chapter 2, the author argues that there are no phenomenological data that preclude a theory that identifies consciousness with a brain process. By carefully attending to what consciousness can and cannot reveal about itself in introspection, the author argues, one can see clearly that phenomenology can play its necessary role in the theory of consciousness without at the same time undermining physicalism. ;In Chapter 3, the author discusses the structural phenomenological data. The discussion is informed by the classic work of William James as well as the work of the Phenomenological philosophers, Edmund Husserl, Jean-Paul Sartre, and Aron Gurwitsch. ;In Chapter 4, the author examines various versions of the view that all consciousness involves self-consciousness. The author argues that any adequate theory of the type must maintain that states or phases of consciousness must be genuinely self-referential. The author then goes on to present a model of the self-referential structure of consciousness using some tools from contemporary Set Theory. ;In Chapter 5, the author replies to certain important objections to the self-referentialist theory of consciousness. ;In Chapter 6, the author examines some connections the theory defended bears to the mathematico-computational theory of consciousness suggested by Douglas Hofstadter and to the outstanding neurobiological theories of consciousness presented by Antonio Damasio and Gerald Edelman. ;In Chapter 7, the author argues that the supposition that consciousness is the embodiment of a certain self-referential structure implies elegant solutions to some outstanding problems in the philosophy of mind

I discuss the main features of Moore’s characterization of consciousness in his well-known 1903 “The Refutation of Idealism” and his little-known 1910 “The Subject-Matter of Psychology.” The presentation is somewhere between an expository exercise in the history of analytical ontology and a philosophical engagement with Moore’s interesting claims. Among other things, I argue that Moore’s famous thesis of the “diaphanousness” of consciousness cannot, contrary to Moore’s own claims, be used to undermine physicalism but in fact can be used to undercut some common arguments against physicalism.

In the Logical Investigations, Ideas I and many other texts, Husserl maintains that perceptual consciousness involves the intentional “animation” or interpretation of sensory data or hyle, e.g., “color-data,” “tone-data,” and algedonic data. These data are not intrinsically representational nor are they normally themselves objects of representation, though we can attend to them in reflection. These data are “immanent” in consciousness; they survive the phenomenological reduction. They partly ground the intuitive or “in-the-flesh” aspect of perception, and they have a determinacy of character that we do not create but can only discover. This determinate, non-representational stratum of perceptual consciousness also serves as a bridge between consciousness and the world beyond it. I articulate and defend this conception of perceptual consciousness. I locate the view in the space of contemporary positions on phenomenal character and argue for its superiority. I close by briefly arguing that the Husserlian account is perfectly compatible with physicalism (this involves disarming the Grain Problem)

Hume's examination of the causal maxim in 1.3.3 of A Treatise of Human Nature can be considered, at least in part, a thinly veiled critique of the cosmological argument, attacking as it does the privileged status of the principle upon which that proof rests. As well, Hume's remarks on the impossibility of demonstrating matters of fact a priori in Part 3 of Section 12 of An Enquiry concerning Human Understanding clearly strike at the heart of the ontological argument, even if not explicitly. Unfortunately, it is only in the very brief Part 9 of his Dialogues Concerning Natural Religion that Hume directly discusses, at any length, the attempt to demonstrate a priori the existence of a deity. The argument, put forward by Demea, and Cleanthes's criticism of that argument take up so little space that for ease of reference I will reproduce them before we proceed any further. Part 9 consists of eleven paragraphs, and in accordance with a now fairly common convention, I will refer to the paragraphs by number. I reproduce only those paragraphs that will be the focus of this paper.

Leading theorists examine the self-representational theory of consciousness as an alternative to the two dominant reductive theories of consciousness, the representational theory of consciousness and the higher-order monitoring theory. In this pioneering collection of essays, leading theorists examine the self-representational theory of consciousness, which holds that consciousness always involves some form of self-awareness. The self-representational theory of consciousness stands as an alternative to the two dominant reductive theories of consciousness, the representational theory of consciousness and the higher-order monitoring theory, combining elements of both RTC and HOM theory in a novel fashion that may avoid the fundamental deficiencies of each. Although self-representationalist views have been common throughout the history of both Western and Eastern philosophy, they have been largely neglected in the recent literature on consciousness. This book approaches the self-representational theory from a range of perspectives, with contributions from scholars in analytic philosophy, phenomenology, and history of philosophy, as well as two longer essays by Antonio Damasio and David Rudrauf and Douglas Hofstadter. The book opens with six essays that argue broadly in favor of self-representationalist views, which are followed by five that argue broadly against them. Contributors next consider connections to such philosophical issues as the nature of propositional attitudes, knowledge, attention, and indexical reference. Finally, Damasio and Rudrauf link consciousness as lived with consciousness as described in neurobiological terms; and Hofstadter compares consciousness to the "strange loop" of mathematical self-reference brought to light by Gödel's incompleteness theorems. Contributors Andrew Brook, Peter Carruthers, Antonio Damasio, John J. Drummond, Jason Ford, Rocco J. Gennaro, George Graham, Christopher S. Hill, Douglas R. Hofstadter, Terry Horgan, Tomis Kapitan, Uriah Kriegel, Keith Lehrer, Joseph Levine, Robert W. Lurz, David Rudrauf, David Woodruff Smith, John Tienson, Robert Van Gulick, Kathleen Wider, Kenneth Williford, Dan Zahavi.