Online research in philosophy

In response to the arguments of Bill McKibben and of Stephen Vogel that nature is at an end and that the very concept of nature should be discarded, I argue that, far from this being the case, the concept of nature is indispensable. A third sense of 'nature' besides the two distinguished by Vogel, that of the nature of an organism, is brought to attention and shown, through five arguments, to be indispensable for environmental philosophy and ethics, and for ethics in general (veterinary and medical ethics included). But it is no coincidence that the same term is used for all three senses of'nature' in many languages. The indispensability of 'nature' in the third sense is used to suggest the indispensability of 'nature' in the second sense (things unaffected by human activity, a sense needed if we are to understand species whether wild or domesticated, because of their evolutionary history, and if we are to distinguish social systems from natural systems), and also of 'nature' in the first sense (things that are not supernatural, a sense needed if we are to ask metaphysical questions about whether 'nature' in this sense and in the other two might have a creator).

Developmental synesthesia typically involves either the stimulation of one sensory modality which gives rise to an experience in a different modality (when a sound, for example, evokes a colour) or the stimulation of a single sensory modality giving rise to different qualitative aspects of experience (when the sight of a number, for example, evokes a colour). These occurrences seem to support Grice’s (1989) argument that sense modalities cannot be individuated without reference to the introspective-character of experience. This, however, threatens intentionalism which maintains that the qualitative character of experience is exhausted, or fully determined by, its intentional content. Ross (2001) attempts to defuse Grice’s argument by proposing an account that does not appeal to the qualitative character of experience to individuate sense modalities. I argue that his account is unsuccessful.

This paper discusses certain problems arising within the treatment of the senses of functions in Alonzo Church's Logic of Sense and Denotation. Church understands such senses themselves to be "sense-functions," functions from sense to sense. However, the conditions he lays out under which a sense-function is to be regarded as a sense presenting another function as denotation allow for certain undesirable results given certain unusual or "deviant" sense-functions. Certain absurdities result, e.g., an argument can be found for equating any two senses of the same type. An alternative treatment of the senses of functions is discussed, and is thought to do better justice to Frege's original theory.

The distinction we make between five different senses is a universal one.¹ Rather than speaking of generically perceiving something, we talk of perceiving in one of five determinate ways: we see, hear, touch, smell, and taste things. In distinguishing determinate ways of perceiving things what are we distinguishing between? What, in other words, is a sense modality?² An answer to this question must tell us what constitutes a sense modality and so needs to do more than simply describe differences in virtue of which we can distinguish the perceptions of different senses. There are many such differences.

Fregean thoughts (i.e. the senses of assertoric sentences) are structured entities because they are composed of simpler senses that are somehow ordered and interconnected. The constituent senses form a unity because some of them are ?saturated? and some ?unsaturated?. This paper shows that Frege's explanation of the structure of thoughts, which is based on the ?saturated/unsaturated? distinction, is by no means sufficient because it permits what I call ?wild analyses?, which have certain unwelcome consequences. Wild analyses are made possible because any ?unsaturated? sense that is a mode of presentation of a concept together with any ?saturated? sense forms a thought. The reason is that any concept can be applied to any object (which is presented by a ?saturated? sense). This stems from the fact that Frege was willing to admit only total functions. It is also briefly suggested what should be done to block wild analyses.

This paper examines Duhem’s concept of good sense as an attempt to support a non rule-governed account of rationality in theory choice. Faced with the underdetermination of theory by evidence thesis and the continuity thesis, Duhem tried to account for the ability of scientists to choose theories that continuously grow to a natural classification. I will examine the concept of good sense and the problems that stem from it. I will also present a recent attempt by David Stump to link good sense to virtue epistemology. I will argue that even though this approach can be useful for the better comprehension of the concept of good sense, there are some substantial differences between virtue epistemologists and Duhem. In the light of this reconstruction of good sense, I will propose a possible way to interpret the concept of good sense, which overcomes the noted problems and fits better with Duhem’s views on scientific method and motivation in developing the concept of good sense.

Neuroethology is a branch of biology that studies the neural basis of naturally occurring animal behavior. This science, particularly a recent program called computational neuroethology, has a similar structure to the interdisciplinary endeavor of cognitive science. I argue that it would be fruitful to conceive of cognitive science as the computational neuroethology of humans. However, there are important differences between the two sciences, including the fact that neuroethology is much more comparative in its perspective. Neuroethology is a biological science and as such, evolution is a central notion. Its target organisms are studied in the context of their evolutionary history. The central goal of this paper is to argue that cognitive science can and ought to be more comparative in its approach to cognitive phenomena in humans. I show how the domain of cognitive phenomena can be divided up into four different classes, individuated by the relative phylogenetic uniqueness of the behavior. I then describe how comparative evidence can enrich our understanding in each of these different arenas.

There has been some recent optimism that addressing the question of how we distinguish sensory modalities will help us consider whether there are limits on a scientific understanding of perceptual states. For example, Block has suggested that the way we distinguish sensory modalities indicates that perceptual states have qualia which at least resist scientific characterization. At another extreme, Keeley argues that our common-sense way of distinguishing the senses in terms of qualitative properties is misguided, and offers a scientific eliminativism about common-sense modalities which avoids appeal to qualitative properties altogether. I’ll argue contrary to Keeley that qualitative properties are necessary for distinguishing senses, and contrary to Block that our common-sense distinction doesn’t indicate that perceptual states have qualia. A non-qualitative characterization of perceptual states isn’t needed to avoid the potential limit on scientific understanding imposed by qualia.