A model for the ideal state includes discussions of the nature and application of justice, the role of the philosopher in society, the goals of education, and the effects of art upon character.

The evidence for the effectiveness of rehabilitation of three types of attention—selectivity, sustained attention, and attentional switching—is reviewed. Limited but significant effects in all three domains are observed, though evidence for generalization to wider everyday life functions remains relatively sparse. In the case of sustained attention and also in the case of spatial selectivity, the modulating effects of arousal are shown to be important, and higher level executive deficits may at times be exacerbated or even caused by lowered levels of (...) arousal. Conversely, methods of modulating arousal may be used to improve sustained attention and executive functions in a range of clinical conditions. Attentional functions are key to other cognitive domains such as attention and perception, and so the promising evidence for attentional rehabilitation may contribute to the rehabilitation of other cognitive domains also. (shrink)

In "Realism and Reason" Hilary Putnam has offered an apparently strong argument that the position of metaphysical realism provides an incoherent model of the relation of a correct scientific theory to the world. However, although Putnam's attack upon the notion of the "intended" interpretation of a scientific theory is sound, it is shown here that realism may be formulated in such a way that the realist need make no appeal to any "intended" interpretation of such a theory. Consequently, it can (...) be shown that realism is immune to Putnam's criticism and that attempts at reformulating this criticism are not likely to meet with success. (shrink)

At first sight, the philosophy of Spinoza may seem wholly alien to what is now generally regarded as philosophy in the English-speaking world. For some decades, the dominant trend in that philosophy has been linguistic and anti-metaphysical; the philosopher is held to be concerned with the analysis of language, and not with speculative system-building. Spinoza, on the other hand, is very much a system-builder; as to the analysis of language, he says explicitly that this is of no interest to him. (...) ‘It is not my intention’, he says, ‘to explain the meanings of words; it is my intention to explain the nature of things’. However, the paper which follows will attempt to show that Spinoza’s philosophy is not wholly without relevance today. It will try to do this by placing one of Spinoza’s most important doctrines, his theory of human freedom, within the context of recent discussions. (shrink)

Explaining the persistence of populations is an important quest in ecology, and is a modern manifestation of the balance of nature metaphor. Increasingly, however, ecologists see populations (and ecological systems generally) as not being in equilibrium or balance. The portrayal of ecological systems as “non-equilibrium” is seen as a strong alternative to deterministic or equilibrium ecology, but this approach fails to provide much theoretical or practical guidance, and warrants formalisation at a more fundamental level. This is available in adaptation theory, (...) which allows population persistence to be explained as an epiphenomenon stemming from the maintenance, survival, movement and reproduction of individual organisms. These processes take place within a physicochemical and biotic environment that persists through structured annual cycles, but which is also spatiotemporally dynamic and subject to stochastic variation. The focus is thus shifted from the overproduction of offspring and the consequent density dependent population pressure thought to follow, to the adaptations and ecological circumstances that support those relatively few individuals that do survive. (shrink)

This paper argues against the thesis of Professor Savan, that Spinoza's views about words and about the imagination are such that he could not consistently say, and indeed did not think, that philosophical truths can be expressed adequately in language. The evidence for this thesis is examined in detail, and it is argued that Spinoza should have distinguished between two types of imagination, corresponding roughly to Kant's transcendental and empirical imagination. Finally, it is suggested that the bulk of the argument (...) of the Ethics is conducted on the level of the ?second kind of knowledge?, reason, but that it also contains examples of the use of the first and third kinds of knowledge. (shrink)

The Routledge History of Philosophy, Volume 4 covers a period of three hundred and fifty years, from the middle of the fourteenth century to the early years of the eighteenth century and the birth of modern philosophy. The focus of this volume is on Renaissance philosophy and seventeenth-century rationalism, particularly that of Descartes, Spinoza, and Leibniz. Science was ascendant during the Renaissance and beyond, and the Copernican revolution represented the philosophical climax of the middle ages. This volume is unique in (...) its emphasis on the relationship between science and philosophy. Placing the philosophy of the age into its scientific, social and cultural context, it examines the scholastic thought which Renaissance philosophy both interacted with and reacted against. A grasp of the intellectual context of the rationalists is also critical to an understanding of this philosophical movement, and the writings of Bacon, Gassendi, Hobbes, and others are analyzed here. The Routledge History of Philosophy, Volume 4 provides a broad, scholarly introduction to this period for students of philosophy and related disciplines, as well as some original interpretations of these authors. It will be important reading both for the specialist and the general reader. It includes a glossary of over one hundred technical terms and a chronological table of philosophical, scientific, and other cultural events. (shrink)

Ecological theory is built upon assumptions about the fundamental nature of organism-environment interactions. We argue that two mutually exclusive sets of such assumptions are available and that they have given rise to alternative approaches to studying ecology. The fundamentally different premises of these approaches render them irreconcilable with one another. In this paper, we present the first logical formalisation of these two paradigms.The more widely-accepted approach - which we label the demographic paradigm - includes both population ecology and community ecology (...) (synecology). Demographic ecology assumes that the environment is relatively stable and that biotic processes, governed predominantly by resource availability, are the most important of ecological and evolutionary influences. Moreover, ecological processes are assumed to translate into directional selection pressures that drive significant evolutionary change on a local scale through the process of optimisation. (shrink)

First published in 1993. Routledge is an imprint of Taylor & Francis, an informa company.