Bill Brewer

Suppose that wc identify physical objccts, in thc first instance, by extension, as things like stones, tables, trees, people and other animals: the persisting macroscopic constituents of the world in which we live. Of course, there is a substantive question of what it is to be y such things in the way relevant to categorization as a physical object. So this can hardly be the final word on the matter. Still, it is equally clear that this gives us all a perfectly respectable initial conception of what we are talking about; and it is an entirely adequate starting point for what follows.

What is the role of conscious perceptual experience in the acquisition of empirical knowledge? My central claim is that a proper account of the way in which perceptual experiences contribute to our understanding of the most basic beliefs about particular things in the mind-independent world around us reveals how such experiences provide peculiarly fundamental reasons for such beliefs. There are, I claim, epistemic requirements upon the very possibility of empirical belief. The crucial epistemological role of experiences lies in their essential contribution to the subject’s understanding of certain perceptual demonstrative contents, simply grasping which provides him with a reason to endorse them in belief. Part I of my book argues that this must be so; Part II explains in detail how it is so.

In ‘Fregean Reference Defended’ (1995), Sosa presents a sophisticated descriptive theory of reference, which he calls ‘fregean’, and which he argues avoids standard counterexamples to more basic variants of this approach. What is characteristic of a fregean theory, in his sense, is the idea that what makes a person’s thought about some object, a, a thought about that particular thing, is the fact that a uniquely satisfies an appropriate individuator which is suitably operative in her thinking.1 On his version, (FT), any individuating concept, or definite description, is an appropriate individuator, whether it picks out its referent entirely independently of context, and is therefore absolute (e.g. ), or it picks out its referent only with the aid of a context of use, and is therefore perspectival (e.g. ); and such an individuator, α, may be suitably operative in a person’s thinking in one of two ways. First, she may be thinking, de dicto, a proposition predicating some property φ with respect to α. Second, she may be thinking, de dicto, a proposition predicating φ with respect to another individuator, β, which is a member of a referential conception for her at that time, whose epistemic basis contains α as one of its great preponderance of individually co-referential members. The second possibility is designed to avoid standard counterexamples, in which, insofar as a person is thinking, de dicto, a proposition predicating φ with respect to some individuator, β, she is nevertheless intuitively thinking about something other than the unique satisfier of β, either because there is no such thing, just a near miss, or because, although there is, she is really thinking about something else, which may generally be believed to be the β (e.g. Donnellan, 1966; and Kripke, 1980). For Sosa argues that, in such cases, the intuitive object of thought uniquely satisfies an appropriately related α..

What is the relation between emotional experience and its behavioural expression? As very preliminary clarification, I mean by ‘emotional experience’ such things as the subjective feeling of being afraid of something, or of being angry at someone. On the side of behavioural expression, I focus on such things as cowering in fear, or shaking a fist or thumping the table in anger. Very crudely, this is behaviour intermediate between the bodily changes which just happen in emotional arousal, such as sweating or the secretion of adrenalin, and reasoned actions done ‘out of an emotion’, such as breathing deeply to clam down, or writing a letter of complaint, for which a standard rationalizing explanation can be given.1 I pursue the relation between this experience and expression in a somewhat roundabout manner. First, I note an analogy between a problem of other minds, and Berkeley’s (1975) challenge to Locke’s (1975) realism. Second, I sketch what I regard as the correct strategy for meeting this challenge. Third, I develop and defend a parallel response to the problem of other minds, as this applies to certain basic directed emotions. This yields the following answer to my opening question. Reference to the appropriate expressive behaviour is essential to the identification of the way in which various emotional experiences present their worldly objects.

We make how a person acts intelligible by revealing it as rational in the light of what she perceives, thinks, wants and so on. For example, we might explain that she reached out and picked up a glass because she was thirsty and saw that it contained water. In doing this, we are giving a causal explanation of her behaviour in terms of her antecedent beliefs, desires and other attitudes. Her wanting a drink and realizing that the glass contained one caused her reaching out and grasping for it. This tells us how the action came about and makes sense of why it happened. At least, something broadly along these lines strikes me as a fairly crude and partial regimentation of our pretheoretic understanding of everyday action explanation.

In The Varieties of Reference (1982), Gareth Evans claims that considerations having to do with certain basic ways we have of gaining knowledge of our own physical states and properties provide "the most powerful antidote to a Cartesian conception of the self" (220). In this chapter, I start with a discussion and evaluation of Evans' own argument, which is, I think, in the end unconvincing. Then I raise the possibility of a more direct application of similar considerations in defence of common sense anti-Cartesianism. Progress in this direction depends upon a far more psychologically informed understanding of normal and abnormal bodily awareness than is generally found in philosophical discussions of these issues. In the context of my attempt at some such understanding, I go on to assess the potential of this more direct line of argument.

Spatial Representation presents original, specially written essays by leading psychologists and philosophers on a fascinating set of topics at the intersection of these two disciplines. They address such questions as these: Do the extraordinary navigational abilities of birds mean that these birds have the same kind of grip on the idea of a spatial world as we do? Is there a difference between the way sighted and blind subjects represent the world 'out there'? Does the study of brain-injured subjects, such as 'blind seers', tell us anything about the working of normal spatial consciousness? The essays are arranged into five sections, each of which reflects a central area of research into spatial cognition, and opens with a short introduction by the editors, designed to facilitate cross-disciplinary reading. The volume as a whole offers a rich and compelling expression of the view that to advance our understanding of the way we represent the external world it is necessary to draw on both philosophical and psychological approaches.

Patients may show a more-or-less complete deviation of the head and eyes towards the right (ipsilesional) side [that is, to the same side of egocentric space as the brain lesion responsible for their disorder]. If addressed by the examiner from the left (contralesional) side [the opposite side to their lesion], patients with severe extrapersonal neglect may fail to respond or may look for the speaker in the right side of the room, turning head and eyes more and more to the right. Frequently these patients will not pick up food from the left half of the plate. Given a crossword puzzle, they may complete only the squares to the right. If walking is not prevented by hemiparesis, neglect patients may lose their bearings, since they do not make use of left sided cues.

Early modern empiricists thought that the nature of perceptual experience is given by citing the object presented to the mind in that experience. Hallucination and illusion suggest that this requires untenable mind-dependent objects. Current orthodoxy replaces the appeal to direct objects with the claim that perceptual experience is characterized instead by its representational content. This paper argues that the move to content is problematic, and reclaims the early modern empiricist insight as perfectly consistent, even in cases of illusion, with the realist contention that these direct objects of perception are the persisting mind-independent physical objects we all know and love.

We perceive things in the external world as spatially located both with respect to each other and to ourselves, such that they are in principle accessible from where we seem to be. I hear the door bang behind me; I feel the pen on the desk over to my right; and I see you walking beneath the line of pictures, from left to right in front of me. By displaying these spatial relations between its objects and us, the perceivers, perception places us in the perceived world: our world and the world we perceive are one. Clearly this is not achieved by our continually perceiving ourselves along with the things around us, and thus recovering our position with respect to them. Indeed I shall argue that there are serious difficulties with the suggestion that this might be the basic mechanism for perceptual self- location. Furthermore, I shall argue that our existence as an element of the objective order cannot be inferred from the raw given in sense perception. Hence it cannot even be on the right lines as an answer to the question 'What is it for perception to represent its objects as environmental to the subject?', that it should present these objects, along with the perceiving subject himself, or along with something from which his existence in the perceived world could be deduced, in the very same frame so to speak. Nevertheless it yields him an awareness of himself as there in the wings of that scene, genuinely located with respect to the action, yet somehow not normally quite getting onto the stage. And I shall argue here, that perceptual contents succeed in being self-locating in this way in..