Online research in philosophy

In The Nature of Consciousness, Mark Rowlands argues that phenomenal properties, which constitute what it is like to have a conscious experience, are “transcendental”: that they are properties by which we are conscious of the nonphenomenal world, but they are not objects of conscious awareness or even linguistic reference. He uses that conclusion to support a mysterian position on the explanatory-gap problem: that it is impossible to understand how phenomenal consciousness arises from physical systems such as the brain.

One-level accounts of consciousness have become increasingly popular (Dretske 1995, Tye 1995, Siewert 1998, Thomasson 2000 and 2005, Lurz 2006, McGinn, this volume). By a ‘onelevel’ account I mean an account according to which consciousness is fundamentally a matter of awareness of a world —and does not require awareness of our own minds, mental states, or the phenomenal character of these. As Fred Dretske puts it “Experiences and beliefs are conscious, not because you are conscious of them, but because, so to speak, you are conscious with them”.

Classical ways of viewing the relation of consciousness to the brain and physical world make it difficult to see how consciousness can be a subject of scientific study. In contrast to physical events, it seems to be private, subjective, and viewable only from a subject's first-person perspective. But much of psychology does investigate human experience, which suggests that classical ways of viewing these relations must be wrong. An alternative, Reflexive model is outlined along with it's consequences for methodology. Within this model the external phenomenal world is viewed as part-of consciousness, rather than apart-from it. Observed events are only "public" in the sense of "private experience shared." Scientific observations are only "objective" in the sense of "intersubjective." Observed phenomena are only "repeatable" in the sense that they are sufficiently similar to be taken for "tokens" of the same event "type." This closes the gap between physical and psychological phenomena. Indeed, events out-there in the world can often be regarded as either physical or psychological depending on the network of relationships under consideration.

It is widely accepted that conscious experience has a physical basis. That is, the properties of experience (phenomenal properties, or qualia) systematically depend on physical properties according to some lawful relation. There are two key questions about this relation. The first concerns the strength of the laws: are they logically or metaphysically necessary, so that consciousness is nothing "over and above" the underlying physical process, or are they merely contingent laws like the law of gravity? This question about the strength of the psychophysical link is the basis for debates over physicalism and property dualism. The second question concerns the shape of the laws: precisely how do phenomenal properties depend on physical properties? What sort of physical properties enter into the laws' antecedents, for instance; consequently, what sort of physical systems can give rise to conscious experience? It is this second question that I address in this paper.

Classical ways of viewing the relation of consciousness to the brain and physical world make it difficult to see how consciousness can be a subject of scientific study. In contrast to physical events, it seems to be private, subjective, and viewable only from a subject's first-person perspective. But much of psychology does investigate human experience, which suggests that classical ways of viewing these relations must be wrong. An alternative, Reflexive model is outlined along with it's consequences for methodology. Within this model the external phenomenal world is viewed as part-of consciousness, rather than apart-from it. Observed events are only "public" in the sense of "private experience shared." Scientific observations are only "objective" in the sense of "intersubjective." Observed phenomena are only "repeatable" in the sense that they are sufficiently similar to be taken for "tokens" of the same event "type." This closes the gap between physical and psychological phenomena. Indeed, events out-there in the world can often be regarded as either physical or psychological depending on the network of relationships under consideration.

Lehar provides useful insights into spatially extended phenomenology that may have major consequences for neuroscience. However, Lehar’s biological naturalism leads to counterintuitive conclusions and he does not give an accurate account of preceding and competing work. This commentary compares Lehar’s analysis with that of Velmans, which address similar issues but draws opposite conclusions. Lehar argues that the phenomenal world is in the brain, and concludes that the physical skull is beyond the phenomenal world. Velmans argues that the brain is in the phenomenal world and concludes that the physical skull is where it seems to be.

Reflexive monism is, in essence, an ancient view of how consciousness relates to the material world that has, in recent decades, been resurrected in modern form. In this paper I discuss how some of its basic features differ from both dualism and variants of physicalist and functionalist reductionism, focusing on those aspects of the theory that challenge deeply rooted presuppositions in current Western thought. I pay particular attention to the ontological status and seeming “out-thereness” of the phenomenal world and to how the “phenomenal world” relates to the “physical world”, the “world itself”, and processing in the brain. In order to place the theory within the context of current thought and debate, I address questions that have been raised about reflexive monism in recent commentaries and also evaluate competing accounts of the same issues offered by “transparency theory” and by “biological naturalism”. I argue that, of the competing views on offer, reflexive monism most closely follows the contours of ordinary experience, the findings of science, and common sense.

Phenomenal consciousness is often thought to involve a first-person perspective or point of view which makes available to the subject categorically private, first-person facts about experience, facts that are irreducible to third-person physical, functional, or representational facts. This paper seeks to show that on a representational account of consciousness, we don't have an observational perspective on experience that gives access to such facts, although our representational limitations and the phenomenal structure of consciousness make it strongly seem that we do. Qualia seem intrinsic and functionally arbitrary, and thus categorically private, because they are first-order sensory representations that are not themselves directly represented. Further, the representational architecture that on this account instantiates conscious subjectivity helps to generate the intuition of observerhood, since the phenomenal subject may be construed as outside, not within, experience. Once the seemings of private phenomenal facts and the observing subject are discounted, we can understand consciousness as a certain variety of neurally instantiated, behaviour controlling content, that constituted by an integrated representation of the organism in the world. Neuroscientific research suggests that consciousness and its characteristic behavioural capacities are supported by widely distributed but highly integrated neural processes involving communication between multiple functional sub- systems in the brain. This 'global workspace' may be the brain's physical realization of the representational architecture that constitutes consciousness.

Dualist and Reductionist theories of mind disagree about whether or not consciousness can be reduced to a state of or function of the brain. They assume, however, that the contents of consciousness are separate from the external physical world as-perceived. According to the present paper this assumption has no foundation either in everyday experience or in science. Drawing on evidence for perceptual projection in both interoceptive and exteroceptive sense modalities, the case is made that the physical world as-perceived is a construct of perceptual processing and, therefore, part of the contents of consciousness. A finding which requires a Reflexive rather than a Dualist or Reductionist model of how consciousness relates to the brain and the physical world. The physical world as-perceived may, in turn be thought of as a biologically useful model of the world as described by physics. Redrawing the boundaries of consciousness to include the physical world as-perceived undermines the conventional separation of the 'mental' from the physical', and with it the very foundation of the Dualist-Reductionist debate. The alternative Reflexive model departs radically from current conventions, with consequences for many aspects of consciousness theory and research. Some of the consequences which bear on the internal consistency and intuitive plausibility of the model are explored, e.g. the causal sequence in perception, representationalism, a suggested resolution of the Realism versus Idealism debate, and the way manifest differences between physical events as-perceived and other conscious events (images, dreams, etc.) are to be construed. In the present paper I wish to challenge some of our most deeply-rooted assumptions about what consciousness is, by re-examining how consciousness, the human brain, and the surrounding physical world relate to each other.

Dualists believe that experiences have neither location nor extension, while reductive and ‘non-reductive’ physicalists (biological naturalists) believe that experiences are really in the brain, producing an apparent impasse in current theories of mind. Enactive and reflexive models of perception try to resolve this impasse with a form of “externalism” that challenges the assumption that experiences must either be nowhere or in the brain. However, they are externalist in very different ways. Insofar as they locate experiences anywhere, enactive models locate conscious phenomenology in the dynamic interaction of organisms with the external world, and in some versions, they reduce conscious phenomenology to such interactions, in the hope that this will resolve the hard problem of consciousness. The reflexive model accepts that experiences of the world result from dynamic organism-environment interactions, but argues that such interactions are preconscious. While the resulting phenomenal world is a consequence of such interactions, it cannot be reduced to them. The reflexive model is externalist in its claim that this external phenomenal world, which we normally think of as the “physical world,” is literally outside the brain. Furthermore, there are no added conscious experiences of the external world inside the brain. In the present paper I present the case for the enactive and reflexive alternatives to more classical views and evaluate their consequences. I argue that, in closing the gap between the phenomenal world and what we normally think of as the physical world, the reflexive model resolves one facet of the hard problem of consciousness. Conversely, while enactive models have useful things to say about percept formation and representation, they fail to address the hard problem of consciousness.