This essay is concerned with solipsism, understood as the extreme sceptical view that I have no knowledge except of my subjective state. A less rough formulation of the view is mooted, inspired by a Quinean combination of naturalism and empiricism. An objection to the resultant position is then considered, based on Putnam’s argument that we are not brains in vats. This objection is first outlined, then pitted against a series of counter-objections. Eventually it is endorsed, but only at the price (...) of exposing the formulation of solipsism in question as not, after all, a satisfactory formulation. This leads to further speculation about the status of solipsism itself. Two of the possibilities that are considered are, firstly, that it is incoherent and, secondly, that it is inexpressible. (shrink)

Clinical psychologists describe decentering as the mental operation in which a subject “moves out” of immersion in a mental state. Such decentering is philosophically puzzling. It involves that a subject attends to her mental state to distance herself from it. That is, she attends to the state to make it less determining of her processing. This paper provides a philosophical explanation of the nature of decentering. It analyses decentering as a complex mental operation composed of two sub-operations: introspection and detachment. (...) Drawing on this analysis, the paper argues that decentering involves certain dynamics of attention and attention control that pose an important challenge to a selection for action theory of attention. This challenge concerns adequately describing the workings of detachment in decentering. The paper discusses how a selection for action theory might reply, yet it argues that all the available replies involve unattractive aspects. The paper closes with broader perspectives, suggesting that decentering might also pose a puzzle for other theories of attention. (shrink)

'Where am I?' This is something we might expect to hear from hapless explorers or academics with no sense of direction. If we can, we'll explain to our inquirer that he is east of East St. Louis and hope he can find his way from there. If he persists, insisting that he is not really lost, but only cannot find himself no matter how hard he looks, we might reasonably suspect that we are dealing with that peculiarly incorrigible academic explorer, (...) the philosopher. When we hesitantly point to his body, we hear him explain, exasperated, 'No, don't you get it? That's my body, but I'm looking for my self! And I cannot find it!' At this point it is tempting to slip away, convinced that our philosophical friend is .. (shrink)

I identify one particular strand of thought in Thomas Nagel's ‘What Is It Like to Be a Bat?’, which I think has helped shape a certain conception of perceptual consciousness that is still prevalent in the literature. On this conception, perceptual consciousness is to be explained in terms of a special class of properties perceptual experiences themselves exhibit. I also argue that this conception is in fact in conflict with one of the key ideas that supposedly animates Nagel's argument in (...) ‘What Is It Like to Be a Bat?', which is the idea of an intimate connection between the idea of consciousness and that of a point of view. (shrink)

The central claim of this thesis is that concepts, the components from which cognitively significant truth evaluable content (thought) is composed, are unstructured entities an account of whose individuation makes no essential reference to other concepts in the possession of the thinking subject or to any particular means by which the reference of the concept is identified by the thinking subject. This position is called Conceptual Atomism and contrasts with Inferential Role Semantics, according to which concepts are individuated by their (...) inferential roles or their conditions of warranted application. The structure of the argument is as follows. Firstly, a principle called the Transparency Principle is developed. This places constraints on the individuation of concepts across differing contexts. The Transparency Principle is then used to show that Inferential Role Semantics is false because it cannot provide a satisfactory account of cognitive dynamics; that is, of the conditions under which a concept is retained through changes in the epistemic state of the subject over a period of time. A version of Conceptual Atomism is then defended and it is shown that this theory yields the correct individuation of concepts. According to this theory the concepts of an individual subject are individuated in terms of referential episodes, episodes of ongoing reference to an object or property during which it is diachronically transparent to the subject that the same thing is being referred to. The more general notion of a referential practice is then used to account for the sharing of concepts by more than one person. Finally, a novel account of the thoughts expressed using indexical terms is defended in order to show that indexicals present no counterexample to Conceptual Atomism. This account of indexical thoughts is of some consequence in its own right. (shrink)