Online research in philosophy

Meehan finds fault with a number of my arguments, and proposes that better solutions to the problems I was addressing are available if we adopt a higher-order theory of consciousness. I start with some general remarks on theories of this sort. I connect what I had to say about the A-thesis with different forms of higher-order sense theories, and explain why I ignored higher-order thought theories altogether: there are compelling grounds for thinking they cannot provide a viable account of phenomenal unity in phenomenal terms. Meehan.

The terminology surrounding the dispute between higher-order and first-order theories of consciousness is piled so high that it sometimes obscures the view. When the debris is cleared away, there is a real prospect.

Peter Carruthers argues that phenomenal consciousness might not matter very much either for the purpose of determining which nonhuman animals are appropriate objects of moral sympathy, or for the purpose of explaining for the similarities in behavior of humans and nonhumans. Carruthers bases these claims on his version of a dispositionalist higher-order thought (DHOT) theory of consciousness which allows that much of human behavior is the result of first-order beliefs that need not be conscious, and that prima facie judgments about the importance of consciousness are due to confabulation. We argue briefly against his claim that 'the moral landscape can remain unchanged' even if all or nearly all nonhuman animals are taken to be incapable of conscious experience. We then show how a first-order representational (FOR) theory of consciousness might be defended against Carruthers' criticisms. Finally, we argue that Carruthers' appeal to confabulation undercuts his own arguments for an evolutionary explanation for consciousness, posing a greater epiphenomenalist threat to his DHOT theory than he concedes.

In this paper I consider recent discussions within the representationalist theories of phenomenal consciousness, in particular, the discussions between first order representationalism (FOR) and higher order representationalism (HOR). I aim to show that either there is only a terminological dispute between them or, if the discussion is not simply terminological, then HOR is based on a misunderstanding of the phenomena that a theory of phenomenal consciousness should explain. First, I argue that we can defend first order representationalism from Carruthers' attacks and ignore higher order thoughts in our account of phenomenal consciousness. Then I offer a diagnostic of Carruthers' misunderstanding. In the last section I consider further reasons to include mindreading abilities in an explanation of phenomenal consciousness.

This interdisciplinary work contains the most sustained attempt at developing and defending one of the few genuine theories of consciousness.

Relying on a range of now-familiar thought-experiments, it has seemed to many philosophers that phenomenal consciousness is beyond the scope of reductive explanation. (Phenomenal consciousness is a form of state-consciousness, which contrasts with creature-consciousness, or perceptual-consciousness. The different forms of state-consciousness include various kinds of access-consciousness, both first-order and higher-order--see Rosenthal, 1986; Block, 1995; Lycan, 1996; Carruthers, 2000. Phenomenal consciousness is the property that mental states have when it is like something to possess them, or when they have subjectively-accessible feels; or as some would say, when they have qualia (see fn.1 below).) Others have thought that we can undermine the credibility of those thought-experiments by allowing that we possess purely recognitional concepts for the properties of our conscious mental states. This paper is concerned to explain, and then to meet, the challenge of showing how purely recognitional concepts are possible if there are no such things as qualia--in the strong sense of intrinsic (non-relational, non-intentional) properties of experience. It argues that an appeal to higher-order experiences is necessary to meet this challenge, and then deploys a novel form of higher-order thought theory to explain how such experiences are generated.

Shriver and Allen (this volume, this journal; hereafter S&A) make three unconnected criticisms of my views concerning phenomenal consciousness and the question of animal consciousness. First, they claim that my dispositional higher-order thought theory of consciousness has much greater significance for ethics than I recognize. Second, they claim that, in the course of attempting to motivate that theory, I have presented inadequate criticisms of first-order theories (according to which phenomenal consciousness may well be rampant in the animal world). And third, they claim that my argument that the question of animal consciousness might not matter a great deal for comparative psychology may prove too much, showing that such consciousness is genuinely epiphenomenal in ourselves, and undermining some of my own evolutionary arguments in support of higher-order theories. I shall focus mostly on the second and third criticisms. But I begin with a few remarks about the first.