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New depth into the "nature" of categories.
Philosophical Studies
Both realist and anti-realist accounts of natural kinds possess prima facie virtues: realists can straightforwardly make sense of the apparent objectivity of the natural kinds, and anti-realists, their knowability. This paper formulates a properly anti-realist account designed to capture both merits. In particular, it recommends understanding natural kinds as 'categorical bottlenecks,' those categories that not only best serve us, with our idiosyncratic purposes and cognitive capacities, but also those of a wide range of alternative agents. By endorsing an ultimately subjective categorical principle, this view sidesteps the epistemological difficulties facing realist views. Yet partly in consequence of the ubiquity of robust causal processes in our universe, it nevertheless identifies natural kinds that are fairly, though not completely, objective.
2009
Abstract This paper claims for a shift towards” the formal sciences” in the cognitive sciences. In order to explain the phenomenon of cognition, including aspects such as learning and intelligence, it is necessary to explore the concepts and methodologies offered by the formal sciences. In particular, category theory is proposed as the most fitting tool for the building of an unified theory of cognition.
Axiomathes, 2022
Categoricalism is a doctrine about properties according to which the dispositional aspects of properties are not essential to them. In opposition to categoricalism, dispositionalism holds that the dispositional aspects of properties are essential to them. In this article, I shall construct a new version of categoricalism that should be favoured over the other existing versions: Semi-Necessitarian Categoricalism. In Section 2 I shall elaborate on the distinction between categoricalism and dispositionalism and single out different 'shades' of both doctrines. I shall also illustrate the main advantages and problems that characterize categoricalism. In Section 3 I shall introduce Necessitarian Categoricalism-as it has been recently developed by Alexander Kelly and Deborah Smith, among others. Even if Necessitarian Categoricalism solves the aforementioned problems of categoricalism, it also loses its main advantages. In Section 4 I shall refine this version of Necessitarian Categoricalism, thus developing Semi-Necessitarian Categoricalism. In Section 5 I shall face some objections. Finally, in Section 6, I shall briefly draw some conclusions and compare my account with other accounts.
Language and Dialogue, 2014
This paper is a response to the discussion article inLanguage and Dialogue 3:2by Wolfgang Teubert, “Was there a cat in the garden? Knowledge between discourse and the monadic self.” Teubert deals there with a number of themes, including a discussion of some philosophical issues raised by Roy Harris and Martin Heidegger. In my response, I am less concerned with those aspects of the article than with the claims made by Teubert about the contrasts between humans and other animals. I respond to Teubert’s position on the status and origins of categories of animals from a realist perspective, with reference to evidence from the natural sciences and anthropology. I suggest that Teubert’s thesis rests on a number of errors, including an over-estimation of the power of discourse, an under-estimation of the range of sensory and semiotic perception available to different kinds of creatures, and a lack of attention to contemporary developments in relevant ethological research.
Categories. Histories and Perspectives 2, 2019
This is the second volume devoted to the history of the question of categories, an issue which was also the focus of the collective volume published in 2017. The aim is still to describe some trajectories and perspectives of this history, without claiming an exhaustive overview of it, but rather representing a contribution to a wider project, which is gradually reaching its goal. In this volume the problem of categories has been investigated in the work of further philosophers, from Plato to Quine; in this way the present work complements that done in the fi rst volume. Th e question of categories has been dealt with in diff erent times and contexts, sometimes coming into the foreground and sometimes concealing itself-and this is something worthy of investigation in itself. It is also interesting to understand why in particular contexts greater attention is paid to a particular issue that had previously lost its centrality.
Two adult chimpanzees were presented with a series of natural category discrimination tasks on a touch screen computer, in which the discriminations varied in degree of abstraction. At the concrete level, discriminations could be made on the basis of single perceptual features, but at the more abstract level, categories were more inclusive, containing exemplars with variant perceptual features. For instance, at the most abstract level, the chimpanzees were required to select images of animals rather than nonanimals, and exemplars within both categories were perceptually diverse. One chimpanzee showed positive transfer at each level of abstraction but required more sessions to reach criterion as the discriminations became more abstract. The other chimpanzee failed to demonstrate consistent significant acquisition of a concept. The results indicate that unlike other apes and black bears, tested previously, chimpanzees found the most abstract discriminations the most difficult to acquire. Analyses of the features of pictures that yielded high or low accuracy revealed no significant differences on several key features, suggesting that the presence of facial features, eyes, or specific coloration did not control responding. In addition, the chimpanzees performed more accurately with photos judged as less typical exemplars of the category by human raters. However, responses to pictures of particular species suggest that chimpanzees may rely on perceptual similarity to familiar exemplars when acquiring experimenter-defined natural categories.
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