This paper proposes a form of Russellian enhanced physicalism which complements standard physicalism by retaining all of the structure of physics while making room for sensory phenomenology. Features of enhanced physicalism include: attention to the concrete instantiations of physical properties; articulation of a posteriori physicalism; articulation of macro-causation among large and complex shaped configurations of neurons, instantiated by sensations; and strong denials of a priori physicalism, panpsychism, and epiphenomenalism.

Neutral monism is a position in metaphysics defended by Mach, James, and Russell in the early twentieth century. It holds that minds and physical objects are essentially two different orderings of the same underlying neutral elements of nature. This paper sets out some of the central concepts, theses and the historical background of ideas that inform this doctrine of elements. The discussion begins with the classic neutral monism of Mach, James, and Russell in the first part of the paper, then (...) considers recent neo-Russellian versions in the second half. The chances for a revival of neutral monism are probably slight; its key ideas and starting points lie far from those in contemporary philosophy of mind. A better route might be through the philosophy of science and a deeper understanding of causation. (shrink)

Taking their motivation from the perceived failure of the reductive physicalist project concerning consciousness, panpsychists ascribe subjectivity to fundamental material entities in order to account for macro-consciousness. But there exists an unresolved tension within the mainstream panpsychist position, the seriousness of which has yet to be appreciated. I capture this tension as a dilemma, and offer advice to panpsychists on how to resolve it. The dilemma is as follows: Panpsychists take the micro-material realm to feature phenomenal properties, plus micro-subjects to (...) whom these properties belong. However, it is impossible to explain the generation of a macro-subject (like one of us) in terms of the assembly of micro-subjects, for, as I show, subjects cannot combine. Therefore the panpsychist explanatory project is derailed by the insistence that the world’s ultimate material constituents are subjects of experience. The panpsychist faces a choice of giving up her explanatory ambitions, or of giving up the claim that the ultimates are subjects. I argue that the latter option is preferable, leading to neutral monism, on which phenomenal qualities are irreducible but subjects are reducible. So panpsychists should be neutral monists. (shrink)

Panpsychism, an increasingly popular competitor to physicalism as a theory of mind, faces a famous difficulty, the ‘combination problem’. This is the difficulty of understanding the composition of a conscious mind by parts (the ultimates) which are themselves taken to be phenomenally qualitied. I examine the combination problem, and I attempt to solve it. There are a few distinct difficulties under the banner of ‘the combination problem’, and not all of them need worry panpsychists. After homing in on the genuine (...) worries, I identify some disputable assumptions that underlie them. Doing away with these assumptions allows us to make a start on a working conception of phenomenal combination. (shrink)

The Immaterial Self examines and defends this thesis, and in particular argues for its Cartesian version, which assigns the non-physical ingredients of the ...

Any position that promises genuine progress on the mind-body problem deserves attention. Recently, Daniel Stoljar has identified a physicalist version of Russells notion of neutral monism; he elegantly argues that with this type of physicalism it is possible to disambiguate on the notion of physicalism in such a way that the problem is resolved. The further issue then arises of whether we have reason to believe that this type of physicalism is in fact true. Ultimately, one needs to argue for (...) this position by inference to the best explanation, and I show that this new type of physicalism does not hold promise of more explanatory prowess than its relevant rivals, and that, whether it is better than its rivals or not, it is doubtful whether it would furnish us with genuine explanations of the phenomenal at all. (shrink)

In a recent article, Grover Maxwell presents a case for a kind of mind-brain identity theory which he claims precludes materialism. His case is based on some views about meaning which I find plausible. However, I will argue that, by adopting certain assumptions about the nature of sensory experience, and extending some of Maxwell's views about meaning in a plausible way, the issue of a materialistic identity theory is reopened. Ultimately, I will agree that such a theory is not true, (...) but more is needed to show this than Maxwell gives us. But the question of materialism is not thereby closed, because it has become axiomatic these days that materialism does not require an identity theory. So I will go on to consider if all forms of materialism have been ruled out by Maxwell's theory, as extended by me. I will end with a tentative affirmative answer but also with a proposal which, if it can be worked out, would reverse the decision. (shrink)

The mind-body problem arises because all theories about mind-brain connections are too deeply obscure to gain general acceptance. This essay suggests a clear, simple, mind-brain solution that avoids all these perennial obscurities. (1) It does so, first of all, by reworking Strawson and Stoljar’s views. They argue that while minds differ from observable brains, minds can still be what brains are physically like behind the appearances created by our outer senses. This could avoid many obscurities. But to clearly do so, (...) it must first clear up its own deep obscurity about what brains are like behind appearances, and how they create the mind’s privacy, unity and qualia – all of which observable brains lack. (2) This can ultimately be done with a clear, simple assumption: our consciousness is the physical substance that certain brain events consist of beyond appearances. For example, the distinctive electrochemistry in nociceptor ion channels wholly consists of pain. This rejects that pain is a brain property: instead it’s a brain substance that occupies space in brains, and exerts forces by which it’s indirectly detectable via EEGs. (3) This assumption is justified because treating pains as physical substances avoids the perennial obscurities in mind-body theories. For example, this ‘clear physicalism’ avoids the obscure nonphysical pain of dualism and its spinoffs. Pain is instead an electrochemical substance. It isn’t private because it’s hidden in nonphysical minds, but instead because it’s just indirectly detected in the physical world in ways that leave its real nature hidden. (4) Clear physicalism also avoids puzzling reductions of private pains into more fundamental terms of observable brain activity. Instead pain is a hidden, private substance underlying this observable activity. Also, pain is fundamental in itself, for it’s what some brain activity fundamentally consists of. This also avoids reductive idealist claims that the world just exists in the mind. They yield obscure views on why we see a world that isn’t really out there. (5) Clear physicalism also avoids obscure claims that pain is information processing which is realizable in multiple hardwares (not just in electrochemistry). Molecular neuroscience now casts doubt on multiple realization. Also, it’s puzzling how abstract information gets ‘realized’ in brains and affects brains (compare ancient quandries on how universals get embodied in matter). A related idea is that of supervenient properties in nonreductive physicalism. They involve obscure overdetermination and emergent consciousness. Clear physicalism avoids all this. Pain isn’t an abstract property obscurely related to brains – it’s simply a substance in brains. (6) Clear physicalism also avoids problems in neuroscience. Neuroscience explains the mind’s unity in problematic ways using synchrony, attention, etc.. Clear physicalism explains unity in terms of intense neuroelectrical activity reaching continually along brain circuits as a conscious whole. This fits evidence that just highly active, highly connected circuits are fully conscious. Neuroscience also has problems explaining how qualia are actually encoded by brains, and how to get from these abstract codes to actual pain, fear, etc.. Clear physicalism explains qualia electrochemically, using growing evidence that both sensory and emotional qualia correlate with very specific electrical channels in neural receptors. Multiple-realization advocates overlook this important evidence. (7) Clear physicalism thus bridges the mind-brain gulf by showing how brains can possess the mind’s qualia, unity and privacy – and how minds can possess features of brain activity like occupying space and exerting forces. This unorthodox nonreductive physicalism may be where physicalism leads to when stripped of all its reductive and nonreductive obscurities. It offers a clear, simple mind-body solution by just filling in what neuroscience is silent about, namely, what brain matter is like behind perceptions of it. (shrink)

We have reason to believe that phenomenal properties are nothing over and above certain physical properties. However, doubt is cast on this by the apparent epistemic gap that arises for attempts to account for phenomenal properties in physical terms. I argue that the epistemic gap should be divided into two more fundamental conceptual gaps. The first of these pertains to the distinctive subjectivity of phenomenal states, and the second pertains to the intrinsicality of phenomenal qualities. Stoljars ignorance hypothesis (IH) attempts (...) to undermine the epistemic gap by arguing that the apparent inexplicability of the phenomenal is merely a symptom of our limited conception of the non-experiential world. I establish some obstacles to IH, and argue that the correct analysis of the epistemic gap means these obstacles can only partially be overcome. I propose, nonetheless, that IH can still be put to good use as half of a hybrid account of phenomenal consciousness. The proposal combines a self-representationalist account of the subjectivity of phenomenal states with a Russellian version of IH that accommodates the qualitative character of those states. This neo-Russellian ignorance hypothesis (NRIH) credibly undermines the appearance of an epistemic gap between the physical and the phenomenal. (shrink)

The assumption of materialism (in its many forms) Howard Robinson believes is false.

What place does consciousness have in the natural world? If we reject materialism, could there be a credible alternative? In one classic example, philosophers ask whether we can ever know what is it is like for bats to sense the world using sonar. It seems obvious to many that any amount of information about a bat's physical structure and information processing leaves us guessing about the central questions concerning the character of its experience. A Place for Consciousness begins with reflections (...) on the existence of this gap. Is it just a psychological shortcoming in our merely human understanding of the physical world? Is it a trivial consequence of the simple fact that we just cannot be bats? Or does it mean there really are facts about consciousness over and above the physical facts? If so, what does consciousness do? Why does it exist? Rosenberg sorts out these problems, especially those centering on the causal role of consciousness. He introduces a new paradigm called Liberal Naturalism for thinking about what causation is, about the natural world, and about how to create a detailed model to go along with the new paradigm. Arguing that experience is part of the categorical foundations of causality, he shows that within this new paradigm there is a place for something essentially like consciousness in all its traditional mysterious respects. A striking feature of Liberal Naturalism is that its central tenets are motivated independently of the mind-body problem, by analyzing causation itself. Because of this approach, when consciousness shows up in the picture it is not introduced in an ad hoc way, and its most puzzling features can be explained from first principles. Ultimately, Rosenberg's final solution gives consciousness a causally important role without supposing either that it is physical or that it interacts with the physical. (shrink)

In its original context Hawking was writing about the significance of physics for questions about God's existence and responsibility for creation. I am co-opting the sentiment for another purpose, though. As stated Hawking could equally be directing the question at concerns about the seemingly abstract information physics conveys about the world, and the full body of facts contained in the substance of the world. Would even a complete and adequate physics tell us all the general facts about the stuff the (...) world is made of? In this chapter I am going to argue that the answer is "no." I am also going to argue that the missing facts are like the kinds of facts we can use to cross the explanatory gap. I am going to argue, in short, that we have reasons to re-enchant matter that are independent of the mind-body problem. In a recent anthology on consciousness (1997) G. (shrink)

"The Analysis of Matter" is one of the earliest and best philosophical studies of the new physics of relativity and quantum mechanics.

In a well- known barb, CD Broad said: "Mr. Bertrand Russell produces a new system of philosophy each year or so, and Mr. GE Moore none ...

The book expounds most of the doctrines that would later be identified with the classical period of the Vienna Circle.

There is at least one element in Strawson.

The debate over physicalism in philosophy of mind can be seen as concerning an inconsistent tetrad of theses: (1) if physicalism is true, a priori physicalism is true; (2) a priori physicalism is false; (3) if physicalism is false, epiphenomenalism is true; (4) epiphenomenalism is false. This paper argues that one may resolve the debate by distinguishing two conceptions of the physical: on the theory-based conception.

Consciousness and Qualia is a philosophical study of qualitative consciousness, characteristic examples of which are pains, experienced colors, sounds, etc.

For some fifty years now, nearly all work in mainstream analytic philosophy has made no serious attempt to understand the _nature of_ _physical reality,_ even though most analytic philosophers take this to be all of reality, or nearly all. While we've worried much about the nature of our own experiences and thoughts and languages, we've worried little about the nature of the vast physical world that, as we ourselves believe, has them all as only a small part.