Alex Byrne

“Avowals” are utterances that “ascribe [current] states of mind”; for instance utterances of ‘I have a terrible headache’ and ‘I’m finding this painting utterly puzzling’ (Bar-On 2004: 1). And avowals, “when compared to ordinary empirical reports…appear to enjoy distinctive security” (1), which Bar-On elaborates as follows: A subject who avows being tired, or scared of something, or thinking that p, is normally presumed to have the last word on the relevant matters; we would not presume to criticize her self-ascription or to reject it on the basis of our contrary judgement. Furthermore, unlike ordinary empirical reports, and somewhat like apriori statements, avowals are issued with a very high degree of confidence and are not easily subjected to doubt. (3) The project of this ambitious, original, and challenging book is to explain why avowals have this distinctive security. Bar-On’s guiding idea is that avowals “can be seen as pieces of expressive behavior, similar in certain ways to bits of behavior that naturally express subjects’ states” (227). Crying and moaning are natural expressions of pain, yawning is a natural expression of tiredness, reaching for beer is a natural expression of the desire for beer, and so on. In some important sense, avowals are supposed to be like that. In what sense, though? It will be useful to begin with the simplest answer.

Our reply is in four parts. The first part addresses objections to our claim that there might be "unknowable" color facts. The second part discusses the use we make of opponent process theory. The third part examines the question of whether colors are causes. The fourth part takes up some issues concerning the content of visual experience. Our target article had three aims: (a) to explain clearly the structure of the debate about color realism; (b) to introduce an interdisciplinary audience to the way philosophers have thought about the issue; (c) to argue that colors are certain sorts of physical properties ("productances"). We are very grateful to the commentators in this continuing commentary for their criticism and constructive suggestions.

The 'content view', in slogan form, is 'Perceptual experiences have representational content'. I explain why the content view should be reformulated to remove any reference to 'experiences'. I then argue, against Bill Brewer, Charles Travis and others, that the content view is true. One corollary of the discussion is that the content of perception is relatively thin (confined, in the visual case, to roughly the output of 'mid-level' vision). Finally, I argue (briefly) that the opponents of the content view are partially vindicated, because perceptual error is due to false belief.

Emergentists such as Samuel Alexander and C. Lloyd Morgan held that the mental is causally efficacious, supervenes on the physical, but does so mysteriously. We must accept the emergent mind, in Alexander's phrase, with "natural piety". Emergentism emerged late last century and all but disappeared in the twentieth. This dissertation attempts to revive the position. ;To explain psycho-physical supervenience is to provide a proof of the mental facts from the physical facts, such that mental vocabulary only occurs in the proof in the form of a priori bridge principles connecting mental goings on with the physical facts. Offering a proof of the mental facts from the physical facts would be one way to justify supervenience, thus simultaneously vindicating and explaining it. ;Those philosophers who try to "naturalize intentionality" can be seen as seeking such proofs for intentional states. Various theories of this kind are considered: those of Fodor, Millikan, Lewis, and others. It is argued in chapters 2 and 3 that these theories are either false or unknowable. ;The case for eliminativism is examined in chapter 4, where it is argued that eliminativism is, of necessity, not a rational thesis to adopt. ;A view found in the writings of Davidson and Dennett is the topic of chapter 5. This is a kind of third-person Cartesianism: a person's mind is completely revealed by the deliverances of a suitably equipped interpreter. This position would elegantly vindicate supervenience without explaining it, at the price of a kind of anti-realism about the mind. It is argued that the price is not worth paying. ;In the sixth chapter it is argued that if the phenomenal aspects of the mind supervene, they do so mysteriously. An argument is then presented for psycho-physical supervenience. It was argued earlier that if supervenience holds for intentional states, it cannot be adequately explained. Therefore physicalism is true, but the mind-body problem has no solution.