An argument is offered for this conditional: If our current concept conscious state is sharp rather than vague, and also correct , then common versions of familiar metaphysical theories of consciousness are false--?namely versions of the identity theory, functionalism, and dualism that appeal to complex physical or functional properties in identification, realization, or correlation. Reasons are also given for taking seriously the claim that our current concept conscious state is sharp. The paper ends by surveying the theoretical options left open (...) by the concept's sharpness and the truth of the conditional argued for in the paper. (shrink)

Intuitively it has seemed to many that our concepts conscious state and conscious creature are sharp rather than vague, that they can have no borderline cases. On the other hand, many who take conscious states to be identical to, or realized by, complex physical states are committed to the vagueness of those concepts. In the paper I argue that conscious state and conscious creature are sharp by presenting four necessary conditions for conceiving borderline cases in general, and showing that some (...) of those conditions cannot be met with conscious state. I conclude that conscious state is sharp, and the conclusion is then extended to conscious creature. The paper ends with a brief discussion of some implications. (shrink)

It is widely assumed that ‘ consciousness ’ is multiply ambiguous within the consciousness literature. Some alleged senses of the term are access consciousness, phenomenal consciousness, state consciousness, creature consciousness, introspective consciousness, self consciousness, to name a few. In the paper I argue for two points. First, there are few if any good reasons for thinking that such alleged senses are genuine: ‘ consciousness ’ is best viewed as univocal within the literature. The second point is that researchers would do (...) best to avoid the semantics of ‘ consciousness ’, since resorting to “semantic ascent” typically serves no clear purpose in the case of consciousness, and confuses matters more than anything else. (shrink)

The paper contains an argument against functionalist theories of consciousness. The argument exploits an intuition to the effect that parts of an individual's brain that are not in use at a time t, can have no bearing on whether that individual is conscious at t. After presenting the argument, I defend it against two possible objections, and then distinguish it from two arguments to which it appears, on the surface to be similar.

The use of expressions like ‘concepts of consciousness’, ‘kinds of consciousness’, and ‘meanings of ‘consciousness’’ interchangeably is ubiquitous within the consciousness literature. It is argued that this practice can be made sense of in only two ways. The first involves interpreting ‘concepts of consciousness’ and ‘kinds of consciousness’ metalinguistically to mean concepts expressed by ‘consciousness’ and kinds expressed by ‘consciousness’; and the second involves certain literal, though semantically deviant, interpretations of those expressions. The trouble is that researchers typically use the (...) above expressions interchangeably without satisfying either way of doing so coherently. The result is much error and confusion, which is demonstrated in the works of philosophers currently writing on consciousness. (shrink)

Papineau’s argument in "Thinking About Consciousness" for the vagueness or indeterminacy of phenomenal concepts is discussed. Several problems with his argument are brought out, and it is concluded that his argument fails to establish his desired conclusion.

That consciousness is composed of simple or basic elements that combine to form complex experiences is an idea with a long history. This idea is approached through an examination of our “picture” or conception of consciousness . It is argued that CC commits us to a certain abstract notion of simple experiential events, or simples, and that traditional critiques of simple elements of experience do not threaten simples. To the extent that CC is taken to conform to how consciousness really (...) is, therefore, the concept of simples must be treated in kind. (shrink)

I argue that the temporal boundaries of certain experiences — those I call ‘simple experiential events’ — have a different character than the temporal boundaries of the events most frequently associated with experience: neural events. In particular, I argue that the temporal boundaries of SEEs are more sharply defined than those of neural events. Indeed, they are sharper than the boundaries of all physical events at levels of complexity higher than that of elementary particle physics. If correct, it follows that (...) the most common forms of identity theory-functionalism and dualism events play key roles through identification or correlation) — are mistaken. More positively, the conclusion supports recent approaches that attempt to explain conciousness by appeal to quantum physics. (shrink)

Two criticisms of Davidson's argument for monism are presented. The first is that there is no obvious way for the anomalism of the mental to do any work in his argument. Certain implicit premises, on the other hand, entail monism independently of the anomalism of the mental, but they are question-begging. The second criticism is that even if Davidson's argument is sound, the variety of monism that emerges is extremely weak at best. I show that by constructing ontologically ``hybrid'' events (...) that are consistent with the premises and assumptions of Davidson's argument, but entail ontological dualism. (shrink)

Glowacki argues that the human capacity for peace emerged 100,000 years ago, and that the logic of peace is such that the traits and technologies that enable peace are the same that are used to wage war. In my commentary I raise some concerns about these points as well as about Glowacki's understanding of peace.

I have argued elsewhere that our conception of phenomenal consciousness commits us to simple phenomenal experiences that in some sense constitute our complex experiences. In this paper I argue that the temporal boundaries of simple phenomenal experiences cannot be conceived as fuzzy or vague, but must be conceived as instantaneous or maximally sharp. The argument is based on an account of what is involved in conceiving fuzzy temporally boundaries for events generally. If the argument is right, and our conception of (...) phenomenal consciousness is assumed to reflect the facts about consciousness, then since the temporal boundaries of neurophysiological events can be conceived as fuzzy, considerable pressure can be applied to neurophysiological identity theories, as well as to dualist accounts that posit temporal correspondence with neurophysiological events. (shrink)

While "Consciousness Explained" has received an enormous amount of attention since its publication, there is still little agreement on what Dennett’s account of consciousness is. Most interpreters treat his view as an instance of one or another of the standard ontological positions (functionalism, behaviorism, eliminativism, instrumentalism). I believe a different metaphysical account underlies Dennett’s view, one that is important though ill-understood. In the paper I attempt to point in the direction of a proper characterization of that account through the use (...) of two illustrative examples. A ten-point story that applies to the examples is developed, and it is suggested that the story applies equally well to Dennett’s view of consciousness. (shrink)

Tyler Burge has argued that a necessary condition for individual's having many of the thoughts he has is that he bear certain relations to other language users. Burge's conclusion is based on a thought experiment in which an individual's social relations are imagined, counterfactually, to differ from how they are actually. The result is that it seems, counterfactually, the individual cannot be attributed many of the thoughts he can be actually. In the article, an alternative interpretation of Burge's thought experiment (...) is offered on which the intuitions Burge evokes can be accepted while his conclusion about the social character of thought is denied. The alternative interpretation given, it is then argued that it is preferable to Burge's. (shrink)

In spite of the enormous interdisciplinary interest in consciousness these days, sorely lacking are general methodologies in terms of which individual research efforts across disciplines can be seen as contributing to a common end. In the paper I outline such a methodology. The central idea is that empirically studying our conception of consciousness—what we have in mind when we think about consciousness—can lead to progress on consciousness itself. The paper clarifies and motivates that idea.

Can humans acquire knowledge of ultimate reality, even significant or comprehensive knowledge? I argue that for all we know we can, and that is so whether ultimate reality is divine or non-divine. My strategy involves arguing that we are ignorant, in the sense of lacking public or shared knowledge, about which possibilities, if any, obtain for humans to acquire knowledge of ultimate reality. This follows from a deep feature of our epistemic situation—that our current psychology strongly constrains what we can (...) conceive about the extent to which human intellectual and other psychological capacities might develop in the future. This mean that many possibilities for such development remain open to us epistemically, including the possibility that we might come to understand vastly more about ultimate reality than we currently do, even if ultimate reality is divine. I also argue that there is room to rationally hope that that is so. (shrink)

Block explains the conflation of phenomenal consciousness and access consciousness by appeal to the ambiguity of the term “consciousness.” However, the nature of ambiguity is not at all clear, and the thesis that “consciousness” is ambiguous between phenomenal consciousness and access consciousness is far from obvious. Moreover, the conflation can be explained without supposing that the term is ambiguous. Block's argument can thus be strengthened by avoiding controversial issues in the semantics of “consciousness.”.

Fodor and Pylyshyn (1988) have argued that the cognitive architecture is not Connectionist. Their argument takes the following form: (1) the cognitive architecture is Classical; (2) Classicalism and Connectionism are incompatible; (3) therefore the cognitive architecture is not Connectionist. In this essay I argue that Fodor and Pylyshyn's defenses of (1) and (2) are inadequate. Their argument for (1), based on their claim that Classicalism best explains the systematicity of cognitive capacities, is an invalid instance of inference to the best (...) explanation. And their argument for (2) turns out to be question-begging. The upshot is that, while Fodor and Pylyshyn have presented Connectionists with the important empirical challenge of explaining systematicity, they have failed to provide sufficient reason for inferring that the cognitive architecture is Classical and not Connectionist. (shrink)

An argument is offered against three naturalistic theories of intentional content: causal-covariation theories, teleological theories, and certain versions of conceptual role semantics. The strategy involves focusing on a normative problem regarding the practice of associating content expressions (e.g., that-clauses) with internal entities (states, symbol structures, etc.). The problem can be expressed thus: Which content expressions are the right ones to associate with internal entities? I argue, first, that an empirical solution to this problem—what I call the Normative Problem—will follow naturally (...) from a descriptive-explanatory account of the practice of associating content expressions with internal entities; and second, that the empirical solution will be accepted and adopted within cognitive science. Naturalistic theories of content also entail solutions to the Normative Problem, and such theories are shown to be false by showing that their solutions to the Normative Problem are inconsistent with the empirical solution coming out of cognitive science. (shrink)