Online research in philosophy

Michael Tye and I are both Representationalists. Nevertheless, we have managed to disagree about the semantic character of ‘in’ in ‘There is a pain in my fingertip’ (see Noordhof (2001); Tye (2002); Noordhof (2002)). The first section of my commentary will focus on this disagreement. I will then turn to the location of pain. Here, perhaps somewhat surprisingly, there seems to be much more agreement between Tye and me. I restrict myself to three points. First, I argue that Tye has not succeeded in providing a decisive consideration against a related theory which takes pains as representationally unmediated objects of pain experiences. Second, I defend Tye against an objection from Murat Aydede. Third, following on from this, I question whether Tye’s characterisation of the content of pain experience is correct. The fact that there is so much to discuss is a testament to richness, interest and exemplary clarity of Tye’s work.

Consider the conscious states of a single subject at a time. Arguably, split-brain cases show that such states need not be jointly accessible. It is less clear that these cases also show that such states need not be jointly experienced. Michael Tye (2004) argues split-brain cases do have that implication, and Timothy Bayne and David Chalmers (2003) argue that they do not. I will develop two objections to Tye’s arguments. First, an analogy to blindsight on which he relies is questionable. Second, even if his analogy succeeds, it shows only that a single person can simultaneously have two separate sets of phenomenally conscious mental states. That result fails to undermine the phenomenalunity thesis that Bayne and Chalmers defend, on which phenomenal consciousness is necessarily unified.

It has been argued that nonreductive physicalism leads to epiphenominalism about mental properties: the view that mental events cannot cause behavioral effects by virtue of their mental properties. Recently, attempts have been made to develop accounts of causal relevance for irreducible properties to show that mental properties need not be epiphenomenal. In this paper, I primarily discuss the account of Frank Jackson and Philip Pettit. I show how it can be developed to meet several obvious objections and to capture our intuitive conception of degrees of causal relevance. However, I argue that the account requires large-scale miraculous coincidence for there to be causally relevant mental properties. I also argue that the same problem arises for two apparently very different accounts of causal relevance. I suggest that this result does not show that these accounts, on appropriate readings, are false. Therefore, I tentatively conclude that we have reason to believe that irreducible mental properties are causally irrelevant. Moreover, given that there is at leastprima facie evidence that mental properties can be causally relevant, my conclusion casts doubt on nonreductive physicalist theories of mental properties.

I consider an alleged example of a non-transitive causal chain, on the basis of which J. Lee has argued that causation is non-transitive. I show that his analysis of the example rests on too coarse-grained an approach to causal relata. I develop a fine-grained analysis of events which owes much to Dretske’s notion of an allomorphic event, and I use this analysis to show that in the example all the genuine causal chains are indeed transitive. It emerges that when fine-grained analyses of events are possible, causal contexts are aIlomorphicaIly sensitive.

It is generally agreed upon that Grice's causal theory of perception describes a necessary condition for perception. It does not describe sufficient conditions, however, since there are entities in causal chains that we do not perceive and not all causal chains yield perceptions. One strategy for overcoming these problems is that of strengthening the notion of causality (as done by David Lewis). Another is that of specifying the criteria according to which perceptual experiences should match the way the world is (Frank Jackson and Michael Tye). Finally, one can also try to provide sufficient conditions by elaborating on the content of perceptual experiences (Alva Nöe). These different strategies are considered in this paper, with the conclusion that none of them is successful. However, a careful examination of their problems points towards the general solution that we outline at the end.

A defense of Frank Jackson's knowledge argument from an objection raised by Michael Tye (1986, 1989), according to which Mary acquires no new factual knowledge when she first sees red but, instead, merely comes to know old facts (that she already knew) in a new way.