This paper examines the nature of theory structure in biology and considers the implications of those theoretical structures for theory reduction. An account of biological theories as interlevel prototypes embodying causal sequences, and related to each other by strong analogies, is presented, and examples from the neurosciences are provided to illustrate these middle-range theories. I then go on to discuss several modifications of Nagel''s classical model of theory reduction, and indicate at what stages in the development of reductions these models (...) might best apply. Finally I consider several implications of these analyses of theory structure and reduction for disciplinary integration in biology. (shrink)

Summary Searle claims that for a machine to have intentional states it is not sufficient that a formal programme be instantiated. Various types of objections to this claim have been brought up by Searle's critics. Searle's replies to some of these objections are analysed. It turns out that it is more to these objections than Searle wants to make us believe. What is crucial, however, is that Searle's „Gedankenexperiment results in a dilemma. At the outset of the dilemma there are (...) two ways of not understanding. According to one of these ways a person (Searle's homunculus) does not understand something without knowing that s/he does not understand. While in the other mode the person knows that s/he doesn't understand. In the first case the inference from facts about the homunculus to facts about the computer is not valid whereas in the second case one would attribute mental states to the computer. Thereby Searle's claim turns out to be unfounded. (shrink)

If you’re a materialist, you probably think that rabbits are conscious. And you ought to think that. After all, rabbits are a lot like us, biologically and neurophysiologically. If you’re a materialist, you probably also think that conscious experience would be present in a wide range of naturally-evolved alien beings behaviorally very similar to us even if they are physiologically very different. And you ought to think that. After all, to deny it seems insupportable Earthly chauvinism. But a materialist who (...) accepts consciousness in weirdly formed aliens ought also to accept consciousness in spatially distributed group entities. If she then also accepts rabbit consciousness, she ought to accept the possibility of consciousness even in rather dumb group entities. Finally, the United States would seem to be a rather dumb group entity of the relevant sort. If we set aside our morphological prejudices against spatially distributed group entities, we can see that the United States has all the types of properties that materialists tend to regard as characteristic of conscious beings. (shrink)

The communicative aspects of the contents of consciousness are analyzed in the framework of a neural network model of animal communication. We discuss some issues raised by Gray, such as the control of the contents of consciousness, the adaptive value of consciousness, conscious and unconscious behaviors, and the nature of a model's consciousness.

In a brief overview this article discusses that, in the multifaceted field of cognitive sciences, the problem of consciousness and mind is far from being resolved. The article then argues that this problem is worked out in careful detail in Peirce’s work. Intelligence, hence mind, for Peirce, is distinct from consciousness. Without being dissociable, they are, in fact, distinct but complementary. Hence, Peirce’s ideas should be recovered not only for the sake of their relevance, but also because cognitivists have a (...) lot to learn from Peirce. (shrink)

I address some specific problems in the two target articles offered here (Rao and Palmer/Alcock: Parapsychology review and critique), which are indicative of more general problems that plague the larger debate. Because such problems are rather typical of scientific conflict, I address general problems of assessment in a second section. In a final section. I make some comments about the future of this debate.

Ziel des Aufsatzes ist es, einige relevante Sachverhalte aus der Philosophie Descartes' hervorzuheben, welche die Entwicklung der Leib-Seele-Problem-Debatte maßgeblich geprägt haben. Aus der Sicht gegenwärtiger philosophischer Debatte wird die Fundierung des ontologischen Dualismus Descartes' aufgewiesen, um schließlich diesen Standpunkt einer kritischen Würdigung zu unterziehen—mit dem Blick auf eine Zukunftsperspektive. Das methodische Verfahren nimmt Rücksicht sowohl auf den Bereich a priori als auch den a posteriori.

I distinguish between being cognisant and being able to perform intelligent operations. The former, but not the latter, minimally involves the capacity to make adequate judgements about one's relation to objects in the environment. The referential nature of cognisance entails that the mental states of cognisant systems must be inter-related holistically, such that an individual thought becomes possible because of its relation to a system of potential thoughts. I use Gareth Evans' 'Generality Constraint' as a means of describing how the (...) reference and holism of mental states in cognisant systems are mutually dependent. Next, I describe attempts to deny the relevance of holism and reference by positing a mentalese. These attempts fail because the meanings of symbols are under determined, with there being no principled means of distinguishing between the mental tokening of a symbol and its disambiguation. I argue that the connectionist meta-theory does not encounter this problem because it is able to encompass the holism of the mental. Recent attempts to show that symbol processing theories of thought must be preferred to connectionist theories do not work. Despite appearances to the contrary, the Generality Constraint favours connectionist not symbol-processing theories. (shrink)

dilemma, a dilemma concerning the individuation of psychological states that explain behavior. Beliefs are individuated by most functionahsts in terms of that 'that'-clauses; functional states are individuated 'narrowly' (i.e.

This paper sketches an alternative answer to James Jones's recent attempt to explore the implications of cognitive social learning theories of personality for issues in epistemology, philosophy of science, and religious studies. Since the 1960s, two cognitive revolutions have taken place in scientific psychology: the first made cognition central to theories of perception, memory, problem solving, and so on; the second made cognition central to theories of learning and behavior, among others. Cognitive social learning theories find their place in the (...) latter revolution. Because of an ongoing naturalistic revolution in philosophy, these cognitive revolutions in psychology are having a profound effect on both descriptive and normative issues in epistemology and philosophy of science. From the naturalistic perspective, philosophy cannot adequately pursue its goals without the contributions of the empirical sciences, including psychology. The author concludes that the cognitive revolutions in psychology and the naturalistic revolution in philosophy have similar descriptive and normative import for the study of religion. (shrink)

Los diversos estudios que circundan en la literatura de la filosofía de la mente nos acercan a la comprensión de la conciencia desde estudios fisicalistas, naturalistas, y eliminativistas, los cuales, en su mayoría, terminan por sucumbir en el problema del dualismo. La teoría del emergentismo searleano realiza su aporte sobre la comprensión de la naturaleza de la conciencia desde la contribución de las neurociencias, sin caer en reduccionismos y presenta una alternativa de superación del dualismo. Pese a ello, al analizar (...) la teoría naturalista de Searle se evidencia que esta resulta ser insuficiente para comprender la naturaleza del fenómeno mental, además de caer en un nuevo dualismo: naturaleza/sociedad. Razón por la cual, en este escrito se realizará un análisis de la teoría searleana de la conciencia, con el fin de proponer al lenguaje como elemento constitutivo de la naturaleza de este estado mental y no como producto derivado de la mente. Es decir, se propone una concepción biopragmática de la conciencia; estudio en el que se sustenta que biología y pragmática del lenguaje son condiciones sine qua non para la existencia de niveles superiores de la conciencia y superar el dualismo natural/social. (shrink)

Although Symons' recent book, On Dennett (Wadsworth, 2002), provides scientists with ahelpful, general introduction to Dennett'sthought, it presents a skewed version of the history of the philosophy of mind. In particular, the continental tradition is almost entirely ignored, if not glibly dismissed. As aresult, the unwary reader of this book wouldnever realize that Dilthey, Sartre and Husserl,like Dennett, offer a ``middle ground'' between naturalistic realism and naturalistic eliminativism. However, unlike Dennett, the respective positions of Dilthey, Sartre and Husserl are not (...) ontologically indifferent, but instead, present a non-naturalistic form of realism that does not simultaneously invoke Cartesian dualism. (shrink)

Daniel Dennett (1991) has advanced a mild realism in which beliefs are described as patterns “discernible in agents' (observable) behavior” (p. 30). I clarify the conflict between this otherwise attractive theory and the strong realist view that beliefs are internal states that cause actions. Support for strong realism is sometimes derived from the assumption that the everyday psychology of the folk is committed to it. My main thesis here is that we have sufficient reason neither for strong realism nor for (...) the supporting assumption about the commitments of folk psychology. Several generally implicit arguments in support of the latter assumption are considered. Explicit arguments for it by Ramsey et al. (1990) and Wellman (1990) are examined and judged unsuccessful. An explicit argument for strong realism by Cummins (in conversation) is also found inadequate. Consideration of this latter argument helps to explain why we cannot be satisfied with Dennett's own very brief discussion of causation by beliefs. (shrink)

Hidden nature physicalists hold that an experiential quality and its hidden nature are the same property – even though they agree that our experiences are of experiential qualities but are not, in the same sense, experiences of their hidden natures. This paper argues that physicalists must be committed to ultimately giving accounts that involve no non-extensional relations, and that this commitment leads to an inability to explain how our experiences could be of experiential qualities, but not of their hidden natures.

I argue that embryonic stem cell research is fair to the embryo, even on the assumption that the embryo has attained full personhood and an attendant right to life at conception. This is because the only feasible alternatives open to the embryo are to exist briefly in an unconscious state and be killed or to not exist at all. Hence, one is neither depriving the embryo of an enduring life it would otherwise have had nor is one causing the embryo (...) pain. I also argue that a rational agent in a situation relevantly similar to that of the embryo would consent to such research, and I use this insight to ground two justice-based arguments in favor of this research. (shrink)

The encounter between the Christian Churches and Psychology has, for all its evident cultural importance, received little attention from disciplinary historians. During the period between the two world wars in Britain this encounter was particularly visible and, as it turned out, for the most part relatively amicable. Given their ostensive rivalry this is, on the face of it, somewhat surprising. Closer examination, however, reveals a substantial convergence and congruence of interests between them within the prevailing cultural climate, and considerable overlapping (...) of membership. The character of their meeting was, it is argued, determined more by these factors than by fundamental divergences in intellectual and theoretical orientation. Such divergences were diplomatically sidelined, on the religious side, by viewing Psychology as having certain ‘blind spots’ and, on the Psychology side, by invoking the argument that ‘science’ is concerned only with ‘facts’, not ‘values’. Only some hard-line psychoanalysts adopted an explicitly anti-religious stance. Religion’s concessions ultimately proved too high a price, and following this period the Churches began distancing themselves from Psychology. Their current relationship is very different from that which prevailed from 1918 to 1939. A fuller historical picture of the relationship between Psychology and religion awaits consideration of other sites and periods. (shrink)

Multiple realization was once taken to be a challenge to reductionist visions, especially within cognitive science, and a foundation of the “antireductionist consensus.” More recently, multiple realization has come to be challenged on naturalistic grounds, as well as on more “metaphysical” grounds. Within cognitive science, one focal issue concerns the role of neural plasticity for addressing these issues. If reorganization maintains the same cognitive functions, that supports claims for multiple realization. I take up the reorganization involved in language dysfunctions to (...) deal with questions concerned with multiple realization and neural plasticity. Beginning with Broca’s case for localization and the nineteenth century discussion of “reorganization,” and returning to more recent evidence for neural plasticity, I argue that, in the end, there is substantial support for multiple realization in cognitive systems; I further argue that this is wholly consistent with a recognition of methodological pluralism in cognitive science. (shrink)

Gray, like other recent authors, seeks a scientific approach to consciousness, but fails to provide a biologically convincing description, partly because he implicitly bases his model on a computationalist foundation that embeds the contents of thought in irreducible symbolic representations. When patterns of neural activity instantiating conscious thought are shorn of homuncular observers, it appears most likely that these patterns and the circuitry that compares them with memories and plans should be found distributed over large regions of neocortex.

Lynne Rudder Baker, Saving Belief: A Critique of Physicalism Princeton: Princeton University Press, 1987, xii + 177 pp. Daniel C. Dennett, The Intentional Stance Cambridge: MIT Press, 1987, xi + 388 pp. Paul M. Churchland, Matter and Consciousness Cambridge: MIT Press, revised edition, 1988, xii + 184 pp.

Over the past hundred years, a number of scientific investigators claim to have adduced experimental evidence for phenomena information” seems to behave like a weak signal that has to compete for the information-processing resources of the organism, a reduction of ongoing sensorimotor activity may facilitate ESP detection. Such a meaningful convergence of results suggests that psi phenomena may represent a unitary, coherent process whose nature and compatibility with current physical theory have yet to be determined. The theoretical implications and potential (...) practical applications of psi could be significant, irrespective of the small magnitude of psi effects in laboratory settings. (shrink)

If sensations were behaviorally conceived, as they should be, as complex functional patterns of interaction between overt behavior and the environment, there would be no point in searching for them as instantaneous psychic elements within the brain or as internal products of the brain.

I aim to show that (i) there are good ways to argue about what has intrinsic value; and (ii) good ethical arguments needn't make ethical assumptions. I support (i) and(ii) by rebutting direct attacks, by discussing nine plausible ways to argue about intrinsic value, and by arguing for pains intrinsic badness without making ethical assumptions. If (i) and (ii) are correct, then ethical theory has more resources than many philosophers have thought: empirical evidence, and evidence bearing on intrinsic value. With (...) more resources, we can hope to base all of our moral beliefs on evidence rather than on, say, emotion or mere intuition. (shrink)