Behavior that solves a problem is distinguished by the fact that it changes another part of the solver's behavior and is strengthened when it does so. Problem solving typically involves the construction of discriminative stimuli. Verbal responses produce especially useful stimuli, because they affect other people. As a culture formulates maxims, laws, grammar, and science, its members behave more effectively without direct or prolonged contact with the contingencies thus formulated. The culture solves problems for its members, and does so by (...) transmitting the verbal discriminative stimuli called rules. Induction, deduction, and the construction of models are ways of producing rules. Behavior that solves a problem may result from direct shaping by contingencies or from rules constructed either by the problem solver or by others. Because different controlling variables are involved, contingency-shaped behavior is never exactly like rule-governed behavior. The distinction must take account of a system which establishes certain contingencies of reinforcement, such as some part of the natural environment, a piece of equipment, or a verbal community; the behavior shaped and maintained by these contingencies; rules, derived from the contingencies, which specify discriminative stimuli, responses, and consequences, and the behavior occasioned by the rules. (shrink)

The acquisition of a new skill usually proceeds through five stages, from novice to expert, with a sixth stage of mastery available for highly motivated performers. In this chapter, we re-state the six stages of the Dreyfus Skill Model, paying new attention to the transitions and interrelations between them. While discussing the fifth stage, expertise, we unpack the claim that, “when things are proceeding normally, experts don’t solve problems and don’t make decisions; they do what normally works” (Dreyfus & Dreyfus, (...) 1988, pp. 30 – 31). This leads us to offer an account of the “perspectival deliberation” that arises for experts and masters and that is distinct from the calculative deliberation characteristic of the lower stages of skillfulness. (shrink)

This article presents a new criticisms of reductive approaches to knowledge-‘wh’ (i.e., those approaches on which whether one stands in the knowledge-‘wh’ relation to a question is determined by whether one stands in the knowledge-‘that’ relation to some answer(s) to the question). It argues in particular that the truth of a knowledge-‘wh’ attribution like ‘Janna knows where she can buy an Italian newspaper’ depends not only on what Janna knows about the availability of Italian newspapers, but on what she believes (...) about the matter. This dependence of Janna's knowledge-‘wh’ on her (possibly false) beliefs is incompatible with the reductive approach. (shrink)

This article provides a detailed analysis of the transfer of a key cluster of ideas from mathematical logic to computing. We demonstrate the impact of certain of Turing’s logico-philosophical concepts from the mid-1930s on the emergence of the modern electronic computer—and so, in consequence, Turing’s impact on the direction of modern philosophy, via the computational turn. We explain why both Turing and von Neumann saw the problem of developing the electronic computer as a problem in logic, and we describe their (...) joint journey from logic to electronic computation. While much has been written about Turing’s and von Neumann’s individual contributions to the development of the computer, this article investigates less well-known terrain: their interactions and mutual influences. Along the way we argue against ‘logic skeptics’ and ‘Turing skeptics’, who claim that neither logic nor Turing played any significant role in the creation of the modern computer. (shrink)

Early Heidegger argues that a “homogenous space of nature” can be revealed by stripping away the intelligibility of Dasein's everyday world, a process he calls “deworlding.” Given this, some interpreters have suggested that Heidegger, despite not having worked out the details himself, is also committed to a notion of deworlded time. Such a “natural time” would amount to an endogenous sequentiality in which events are ordered independently of Dasein and the stand it takes on its being. I show that Heidegger (...) was indeed committed to such a temporal realism even though his treatment of these issues is somewhat scattered and pulled in different directions. In the course of my reconstruction, I renew an interpretation of Heidegger that stresses Dasein's thrownness into nature and I answer William Blattner's powerful interpretation of Heidegger as a failed temporal idealist who was unable to derive the sequentiality of ordinary time from Dasein's non-sequential originary temporality. Heidegger did not attempt to derive sequentiality; instead, he understood it as a built-in feature of the natural universe by which Dasein's activities are constrained. World-time turns out to be a co-production of Dasein's non-sequential originary temporality and the endogenous sequentiality of events in nature. (shrink)

This chapter contains sections titled: Medieval monasticism and learning The Dominicans The Franciscans Conclusion.

We develop a partial solution to the meta-problem of consciousness that builds on our previous psychological account of an apparent explanatory gap. Drawing from empirical work on explanatory cognition and conceptual development, we sketch a profile of cognitive systems for which primitive concepts facilitate explanatory gaps. This account predicts that there will be multiple explanatory gaps. We suggest that this is borne out by the existence of primitivist theories in multiple philosophical domains.

This study offers a panoramic view of the creative, expository, interpretive, dialectic, polemical, didactic and devotional phases of Dvaita philosophy, and its ...

We define a property for varieties V, the f.r.p. . If it applies to a finitely based V then V is strongly finitely based in the sense of [14], see Theorem 2. Moreover, we obtain finite axiomatizability results for certain propositional logics associated with V, in its generality comparable to well-known finite base results from equational logic. Theorem 3 states that each variety generated by a 2-element algebra has the f.r.p. Essentially this implies finite axiomatizability of a 2-valued logic in (...) any finite language. (shrink)

Chaos theory is a rapidly growing field. As a technical term, chaos refers to deterministic but unpredictable processes being sensitively dependent upon initial conditions. Neurobiological models and experimental results are very complicated and some research groups have tried to pursue the neuronal chaos. Babloyantz's group has studied the fractal dimension (d) of electroencephalograms (EEG) in various physiological and pathological states. From deep sleep (d=4) to full awakening (d>8), a hierarchy of strange attractors paralles the hierarchy of states of consciousness. In (...) epilepsy (petit mal), despite the turbulent aspect of a seizure, the attractor dimension was near to 2. In Creutzfeld-Jacob disease, the regular EEG activity corresponded to an attractor dimension less than the one measured in deep sleep. Is it healthy to be chaotic? An active desynchronisation could be favourable to a physiological system. Rapp's group reported variations of fractal dimension according to particular tasks. During a mental arithmetic task, this dimension increased. In another task, a P300 fractal index decreased when a target was identified. It is clear that the EEG is not representing noise. Its underlying dynamics depends on only a few degrees of freedom despite yet it is difficult to compute accurately the relevant parameters.What is the cognitive role of such a chaotic dynamics? Freeman has studied the olfactory bulb in rabbits and rats for 15 years. Multi-electrode recordings of a few mm2 showed a chaotic hierarchy from deep anaesthesia to alert state. When an animal identified a previously learned odour, the fractal dimension of the dynamics dropped off (near limit cycles). The chaotic activity corresponding to an alert-and-waiting state seems to be a field of all possibilities and a focused activity corresponds to a reduction of the attractor in state space. For a couple of years, Freeman has developed a model of the olfactory bulb-cortex system. The behaviour of the simple model without learning was quite similar to the real behaviour and a model with learning is developed. (shrink)

Movies have a striking aesthetic power: they can draw us in and induce a peculiar mode of involvement in their images – they absorb us. While absorbed in a movie, we lose track both of the passage of time and of the fact that we are sitting in a dark room with other people watching the play of light upon a screen. What is the source of the power of movies? Noël Carroll, who cites Maurice Merleau-Ponty as an influence on (...) his account of the power of movies, agrees with Merleau-Ponty that our perceptual experience of movies draws on many of the capacities at work in our perceptual experience of everyday situations. Yet Merleau-Ponty’s account of perception shows that Carroll’s emphasis on intellectual inference and the entertaining of unasserted thoughts is a distortion of the phenomenology of cinematic absorption. According to Merleau-Ponty, such intellectual operations come into play in cases of breakdown but should not be read back into the primary absorbed experience as being implicitly operative all along. After presenting and criticizing Carroll’s view, I interpret and expand upon Merleau-Ponty’s position, showing that his version of the analogy between cinematic perception and everyday perception is more convincing than Carroll’s. (shrink)

This chapter contains sections titled: I II III IV V VI VII VIII IX X.

I have written a number of articles recently that have a rather remarkable character. They all point out trivial grammatical facts that, at great cost, have not been respected in twentieth century Logic. A major continuous strand in my previous work, with this same character, I will first summarise, to locate the kind of fact that is involved. But then I shall present an overview of the more recent, and more varied points I have made, which demonstrate the far larger (...) extent of basic grammar that has been overlooked or suppressed. I end with some remarks about how this phenomenon can have arisen – principally through logicians not being attentive enough to their own language, and occupying themselves, instead, with often quite imaginary languages. (shrink)

This is a description and analysis of the intellectual culture of the eighteenth-century Church of England. Challenging conventional perceptions of the Church as an intellectually moribund institution, the study traces the influence of thinkers such as Locke, Newton, Burke, and Gibbon on theological debate in England during this period.

There is a need to bring ethics and medical practice closer together, despite the risk and problems this may involve. Deontological ethics may promote sanctity of life considerations against the quality of life considerations favoured by consequentialists or utilitarians; while talk of respect for life and the value of life may point to more qualified ethical positions. This paper argues for a respect-for-life position, dismissing a utilitarian cost-benefit outlook as too simplistic; but an unqualified fixed principles approach is also ruled (...) out, both because of its unacceptable consequences in individual cases and also because of its reliance on the slippery slope argument which, it is argued, is logically and psychologically deficient. The case of genetic engineering provides an example in which the notion of respect may operate, but in which broad general principles also apply. A cautious conservatism towards accepted principles is recommended in the development of medical technologies. (shrink)

Sex is a fundamentally important biological variable. Recent years have seen significant progress in the integration of sex in many aspects of basic and clinical research, including analyses of sex differences in brain function. Significant advances in the technology available for studying the endocrine and nervous systems are now coupled with a more sophisticated awareness of the interconnections of these two communication systems of the body. A thorough understanding of the current knowledge, conceptual approaches, methodological capabilities, and challenges is a (...) prerequisite to continued progress in research and therapeutics in this interdisciplinary area. Sex Differences in the Brain provides scientists with the basic tools for investigating sex differences in brain and behavior and insight into areas where important progress in understanding physiologically relevant sex differences has already been made. This book was edited and co-authored by members of the Isis Fund Network on Sex, Gender, Drugs and the Brain, sponsored by the Society for Womens Health Research. The book is arranged in three parts. The first part of the book introduces the study of sex differences in the brain, with an overview of how the brain, stress systems, and pharmacogenetics differ in males and females and how this information is important for the study of behavior and neurobiology of both genders. The second part presents examples of sex differences in neurobiology and behavior from both basic and clinical research perspectives, covering both humans and nonhuman animals. The final part discusses sex differences in the neurobiology of disease and neurological disorders. For interested individuals as well as those who are considering conducting research at the intersections of endocrinology, neuroscience, and other areas of biomedicine, the study of sex differences offers exciting and challenging questions and perspectives. This book is intended as a guide and resource for clinicians, scientists, and students. (shrink)

David Hume , a member of the well-known Border family of Home, was born on April 26, 1711. After a period of preparatory training he matriculated at Edinburgh College in 1723, although he may have entered earlier. His course during this period is obscure; according to his own statement the curriculum was mainly literary; on leaving College he records that his interests lay predominantly in this direction, and, being left to his own choice, he was able to indulge his inclinations. (...) An attempt to train him for a legal career ended in failure; and he continued to live at his ancestral home of Ninewells, to the west of Berwick, for some years, devoting himself. (shrink)

Public health ethics is a relatively new academic field. Crucially, it is distinguished from traditional medical ethics by its focus on populations rather than individuals. Still, the ethics of public health cannot be perceived completely detached from the ethics of individuals, as populations are made up of individuals. One issue that clearly falls within the intersection of a population- and an individual based perspective on ethics is resource allocation. Resource allocation takes place at various stages within the organisation of healthcare, (...) i.e. at the micro-, meso- and macro level [3]. Resources are almost always limited, with the consequence that some healthcare is prioritised while other care is rationed. In this manner, resource allocation creates winners and losers; those who get the best care available, those who do not receive the best care and those who do not receive care at all. It seems prudent to assume that any adequate public health ethics involved in population-based decision-making will have to address all ethical aspects of resource allocation, all the way from the macrolevel policy-making process to the micro-level implementation where it affects specific and identifiable individuals. More specifically, such an ethics must be able to deal with the ethical tensions arising between population-based concerns framing the policy design process, and individual concerns in the realisation of the resource allocations. In the following, I will identify an inherent ethical tension involved in ‘legitimate resource allocation’, which is related to the challenge of meeting the ethical requirements from a population- and an individual based perspective at the same time. (shrink)

The dynamical behaviour of a very general model of neural networks with random asymmetric synaptic weights is investigated in the presence of random thresholds. Using mean-field equations, the bifurcations of the fixed points and the change of regime when varying control parameters are established. Different areas with various regimes are defined in the parameter space. Chaos arises generically by a quasi-periodicity route.

We present a structure theorem for superstable quasi-varieties without DOP. We show that every algebra in such a quasi-variety weakly decomposes as the product of an affine algebra and a combinational algebra, that is, it is bi-interpretable with a two sorted structure where one sort is an affine algebra, the other sort is a combinatorial algebra and the only non-trivial polynomials between the two sorts are certain actions of the affine sort on the combinatorial sort.

The article argues for a strong connection of spiritual and physical care and investigates the question of state- versus church-related social work through the example of a Lutheran women's organization that offers mothers’ recuperation. Through this example, it becomes obvious that too much involvement of the government is as much an obstacle as too little involvement that leaves the question of standards and regulations to the economic competition of social services.

In August 2011, a group of medical doctors, ethicists, academic and medical physicists were asked to debate and reach consensus on the potential need for randomised control trials to test charged particle radiation therapy for treating tumours. The outcome of the meeting was a paper recently published in the Journal of Medical Ethics entitled “Position statement on ethics, equipoise and research on charged particle therapy” by Sheehan et al. However 6 of the 30 meeting participants withdrew from authorship of the (...) ‘position statement’ because their views were not adequately represented. The ‘position statement’ did not state our reasons for withdrawing from the statement, which is a considerable omission. We had two principal objections: the case for the benefits to patients and society of randomized trials to test CPRT was not adequately represented, and the complexities and potential harms of CPRT were not clearly stated. In this response we explain and justify our objections. Patients, doctors and policymakers seeking to make independent judgments about whether equipoise exists for the relative benefits of CPRT should therefore read this document alongside the ‘position’ statement. (shrink)

This paper is a slightly expanded and altered version of comments delivered in response to a paper by Andrew Dilts at the 35th Annual Spindel Conference in Memphis, TN. I focus on the elision of the state in Dilts' paper in order to demonstrate the need for a genealogy that takes seriously the role of sovereignty in constructing the present of trans femmes and trans women of color.

" Medieval Thought provides a clear and authoritative introduction to an important period in intellectual history. It studies the course of medieval intellectualisation, analysing how tension between the religious and non-religious components of medieval culture resulted in its sophisticated development. The most influential vehicle for medieval intellectualisation was philosophy. Philosophy became the mode of expression in religion, providing religious thinkers with a unifying vocabulary and means of reasoning. In turn philosophers found in religion fertile ground for metaphysical discussion. The initial (...) alliance between philosophy and religion did not, however, hold, for Christianity's necessity for theological strength through uniformity inevitably clashed with the dissenting questioning of philosophy. This book will be accessible to even those with little knowledge of Christian theology. Appendices have been included to help the reader surmount possible difficulties, and no prior knowledge of Latin is assumed. Each chapter ends with a select bibliography to direct the reader toward further study, and an additional, more comprehensive, annotated bibliography is included at the end of the book. (shrink)

The paper illustrates how organic chemists dramatically altered their practices in the middle part of the twentieth century through the adoption of analytical instrumentation - such as ultraviolet and infrared absorption spectroscopy and nuclear magnetic resonance spectroscopy - through which the difficult process of structure determination for small molecules became routine. Changes in practice were manifested in two ways: in the use of these instruments in the development of 'rule-based' theories; and in an increased focus on synthesis, at the expense (...) of chemical analysis. These rule-based theories took the form of generalizations relating structure to chemical and physical properties, as measured by instrumentation. This 'Instrumental Revolution' in organic chemistry was two-fold: encompassing an embrace of new tools that provided unprecedented access to structures, and a new way of thinking about molecules and their reactivity in terms of shape and structure. These practices suggest the possibility of a change in the ontological status of chemical structures, brought about by the regular use of instruments. The career of Robert Burns Woodward (1917-1979) provides the central historical examples for the paper. Woodward was an organic chemist at Harvard from 1937 until the time of his death. In 1965, he won the Nobel Prize in Chemistry. (shrink)

In his account of probable reasoning, Poincaré used the concept, or at least the language, of conventions. In particular, he claimed that the prior probabilities essential for inverse probable reasoning are determined conventionally. This paper investigates, in the light of Poincaré's well known claim about the conventionality of metric geometry, what this could mean, and how it is related to other views about the determination of prior probabilities. Particular attention is paid to the similarities and differences between Poincaré's conventionalism as (...) it applies to probabilities and de Finetti's subjectivism. The aim of the paper is to suggest that in accounts of the development of ideas about probable reasoning, particularly those customarily described as Bayesian, Poincaré's discussion deserves more attention than it has so far received. (shrink)

This chapter contains sections titled: Logic and epistemology The eternity of the world Human happiness.

In his account of probable reasoning, Poincare used the concept, or at least the language, of conventions. In particular, he claimed that the prior probabilities essential for inverse probable reasoning are determined conventionally. This paper investigates, in the light of Poincare's well known claim about the conventionality of metric geometry, what this could mean, and how it is related to other views about the determination of prior probabilities. Particular attention is paid to the similarities and differences between Poincare's conventionalism as (...) it applies to probabilities and de Finetti's subjectivism. The aim of the paper is to suggest that in accounts of the development of ideas about probable reasoning, particularly those customarily described as Bayesian, Poincare's discussion deserves more attention than it has so far received. (shrink)