Although Maxwell theory is O(3,1)-covariant, electrodynamics only transforms invariantly between Lorentz frames for special forms of the field, and the generator of Lorentz transformations is not generally conserved. Bérard, Grandati, Lages, and Mohrbach have studied the O(3) subgroup, for which they found an extension of the rotation generator that satisfies the canonical angular momentum algebra in the presence of certain Maxwell fields, and is conserved by the classical motion. The extended generator depends on the field strength, but not the (...) potential, and so is manifestly gauge invariant. The conditions imposed on the Maxwell field by the algebra lead to a Dirac monopole solution.In this paper, we study the generalization of the Bérard, Grandati, Lages and Mohrbach construction to the full Lorentz group in N dimensions. The requirements can be maximally satisfied in a three-dimensional subspace of the full Minkowski space; this subspace can be chosen to describe either an O(3)-invariant space sector, or an O(2,1)-invariant restriction of spacetime. The field solution reduces to the Dirac monopole found in the nonrelativistic case when the O(3)-invariant subspace is selected. When an O(2,1)-invariant subspace is chosen, the field strength can be associated with a Coulomb-like potential of the type A μ(x) = n μ/ρ, where ρ = (x μ x μ)1/2, similar to that used by Horwitz and Arshansky to obtain a covariant generalization of the hydrogen-like bound state. In the presence of these fields, which are determined entirely by symmetry considerations, without reference to a source equation, the extended generator is conserved under classical relativistic system evolution. (shrink)

Opstellen over de invloed van de Duitse filosoof (1889-1976) op de filosofie in Nederland. Bevat bibliografie.

Formwerdung, als Vorgang des Ausdrückens, ist eine der Natur inhärente technische Dimension - so eine These über den Zusammenhang von Technik- und Naturphilosophie. Demnach überzeugen die techniktheoretischen Überlegungen von Kapp, Deleuze/Guattari und Simondon insbesondere, weil dort Technik als ein Problem des Ausdrucks behandelt wird. Um diesen Gedanken auszuführen, spannt Katharina D. Martin einen Bogen von Lamarck über Schelling und Uexküll bis zu Deleuze. Dabei gelingt es ihr nicht nur, die vielfältigen Diskurse transdisziplinär zu vermitteln, sie führt uns auch zu (...) einem ökologischen und topologischen Denken, das in der Lage ist, die problematische Dimension der Technologisierung unserer Umwelt zu erfassen. (shrink)

In der vorliegenden Schrift soll Martin Buber als dem scharfen Diagnostiker unserer Zeit und dem Künder ewiger Wahrheiten die ganze Aufmerksamkeit gelten. Kein Denken lässt sich so wenig in billigen Schlagwörtern einfangen, wie das Martin Bubers. Die erste Aufgabe wird sein, die Situation in der wir leben, und die Buber meint, etwas näher zu bestimmen. Dies wird uns in die Lage setzen, jene Fragen zu vernehmen, die die Situation zu uns allen spricht. Sodann werden wir uns der besonderen (...) Gestalt der Buberschen Antwort zuwenden. Erst dann erscheint die Frage nach Herkunft und Inhalt der Antwort sinnvoll. In einem letzten Teil sollen dann gleichsam drei Bewährungsproben von Bubers Denken erörtert werden. (shrink)

A common objection to sense-datum theories of perception is that they cannot give an adequate account of the fact that introspection indicates that our sensory experiences are directed on, or are about, the mind-independent entities in the world around us, that our sense experience is transparent to the world. In this paper I point out that the main force of this claim is to point out an explanatory challenge to sense-datum theories.

The disjunctive theory of perception claims that we should understand statements about how things appear to a perceiver to be equivalent to statements of a disjunction that either one is perceiving such and such or one is suffering an illusion (or hallucination); and that such statements are not to be viewed as introducing a report of a distinctive mental event or state common to these various disjoint situations. When Michael Hinton first introduced the idea, he suggested that the burden of (...) proof or disproof lay with his opponent, that what was needed was to show that our talk of how things look or appear to one.. (shrink)

Disjunctivism about perceptual appearances, as I conceive of it, is a theory which seeks to preserve a naïve realist conception of veridical perception in the light of the challenge from the argument from hallucination. The naïve realist claims that some sensory experiences are relations to mind-independent objects. That is to say, taking experiences to be episodes or events, the naïve realist supposes that some such episodes have as constituents mind-independent objects. In turn, the disjunctivist claims that in a case of (...) veridical perception like this very kind of experience that you now have, the experiential episode you enjoy is of a kind which could not be occurring were you having an hallucination. The common strategy of arguments from hallucination set out to show that certain things are true of hallucinations, and hence must be true of perceptions. For example, it is argued that hallucinations must have non-physical objects of awareness, or that such states are not relations to anything at all, but are at best seeming relations to objects. In insisting that veridical perceptual experience is of a distinct kind from hallucination, the disjunctivist denies that any of these conceptions of hallucination challenges our conception of veridical perceptions as relations to mind-independent objects. More specifically, I assume that the disjunctivist advocates naïve realism because they think that this position best articulates how sensory experience seems to us to be just through reflection. If the disjunctivist is correct in this contention, then anyone who accepts the conclusion of the argument from hallucination must also accept that the nature of sensory experience is other than it seems to us to be. In turn, one may complain that any such error theory is liable to lead to sceptical consequences. A Humean scepticism about the senses launches a challenge about our knowledge of the world through questioning the conception we have of what sense experience is, and how it can provide knowledge of the world. (shrink)

We provide a battery of examples of delusions against which theoretical accounts can be tested. Then, we identify neuropsychological anomalies that could produce the unusual experiences that may lead, in turn, to the delusions in our battery. However, we argue against Maher’s view that delusions are false beliefs that arise as normal responses to anomalous experiences. We propose, instead, that a second factor is required to account for the transition from unusual experience to delusional belief. The second factor in the (...) aetiology of delusions can be described superficially as a loss of the ability to reject a candidate for belief on the grounds of its implausibility and its inconsistency with everything else that the patient knows. But we point out some problems that confront any attempt to say more about the nature of this second factor. (shrink)

The Routledge International Handbook of Neuroaesthetics is an authoritative reference work that provides the reader with a wide-ranging introduction to this exciting new scientific discipline. The book brings together leading international academics to offer a well-balanced overview of this burgeoning field while addressing two questions central to the field; how the brain computes aesthetic appreciation for sensory objects, and how is art created and experienced.

Long awaited and eagerly anticipated, this remarkable volume allows English-speaking readers to experience a profound dialogue between the German philosopher Martin Heidegger and the Swiss psychiatrist Medard Boss.

Few words in both everyday parlance and theoretical discourse have been as rhapsodically defended or as fervently resisted as "experience." Yet, to date, there have been no comprehensive studies of how the concept of experience has evolved over time and why so many thinkers in so many different traditions have been compelled to understand it. _Songs of Experience _is a remarkable history of Western ideas about the nature of human experience written by one of our best-known intellectual historians. With its (...) sweeping historical reach and lucid comparative analysis—qualities that have made Martin Jay's previous books so distinctive and so successful—_Songs of Experience _explores Western discourse from the sixteenth century to the present, asking why the concept of experience has been such a magnet for controversy. Resisting any single overarching narrative, Jay discovers themes and patterns that transcend individuals and particular schools of thought and illuminate the entire spectrum of intellectual history. As he explores the manifold contexts for understanding experience—epistemological, religious, aesthetic, political, and historical—Jay engages an exceptionally broad range of European and American traditions and thinkers from the American pragmatists and British Marxist humanists to the Frankfurt School and the French poststructuralists, and he delves into the thought of individual philosophers as well, including Montaigne, Bacon, Locke, Hume and Kant, Oakeshott, Collingwood, and Ankersmit. Provocative, engaging, erudite, this key work will be an essential source for anyone who joins the ongoing debate about the material, linguistic, cultural, and theoretical meaning of "experience" in modern cultures. (shrink)

Listening to someone from some distance in a crowded room you may experience the following phenomenon: when looking at them speak, you may both hear and see where the source of the sounds is; but when your eyes are turned elsewhere, you may no longer be able to detect exactly where the voice must be coming from. With your eyes again fixed on the speaker, and the movement of her lips a clear sense of the source of the sound will (...) return. This ‘ventriloquist’ effect reflects the ways in which visual cognition can dominate auditory perception. And this phenomenological observation is one that you can verify or disconfirm in your own case just by the slightest reflection on what it is like for you to listen to someone with or without visual contact with them. (shrink)

Humanity has reached a critical moment. Our world is unsettled and rapidly changing, and we face existential risks over the next century. Various outcomes--good and bad--are possible. Yet our approach to the future is characterized by short-term thinking, polarizing debates, alarmist rhetoric, and pessimism. In this short, exhilarating book, renowned scientist and bestselling author Martin Rees argues that humanity's prospects depend on our taking a very different approach to planning for tomorrow. The future of humanity is bound to the (...) future of science and hinges on how successfully we harness technological advances to address our challenges. If we are to use science to solve our problems while avoiding its dystopian risks, we must think rationally, globally, collectively, and optimistically about the long term. Advances in biotechnology, cybertechnology, robotics, and artificial intelligence--if pursued and applied wisely--could empower us to boost the developing and developed world and overcome the threats humanity faces on Earth, from climate change to nuclear war. At the same time, further advances in space science will allow humans to explore the solar system and beyond with robots and AI. But there is no "Plan B" for Earth--no viable alternative within reach if we do not care for our home planet. Rich with fascinating insights into cutting-edge science and technology, this accessible book will captivate anyone who wants to understand the critical issues that will define the future of humanity on Earth and beyond."-- Provided by publisher. (shrink)

Book description: The capacity to represent and think about time is one of the most fundamental and least understood aspects of human cognition and consciousness. This book throws new light on central issues in the study of the mind by uniting, for the first time, psychological and philosophical approaches dealing with the connection between temporal representation and memory. Fifteen specially written essays by leading psychologists and philosophers investigate the way in which time is represented in memory, and the role memory (...) plays in our ability to reason about time. They offer insights into current theories of memory processes and of the mechanisms and cognitive abilities underlying temporal judgements, and draw out fundamental issues concerning the phenomenology and epistemology of memory and our understanding of time. The chapters are arranged into four sections, each focused on one area of current research: Keeping Track of Time, and Temporal Representation; Memory, Awareness and the Past; Memory and Experience; Knowledge and the Past: The Epistemology and Metaphysics of Time. A general introduction gives an overview of the topics discussed and makes explicit central themes which unify the different philosophical and psychological approaches. (shrink)

This paper addresses a problem about epistemic warrant. The problem is posed by philosophical arguments for externalism about the contents of thoughts, and similarly by philosophical arguments for architecturalism about thinking, when these arguments are put together with a thesis of first person authority. In each case, first personal knowledge about our thoughts plus the kind of knowledge that is provided by a philosophical argument seem, together, to open an unacceptably ‘non-empirical’ route to knowledge of empirical facts. Furthermore, this unwelcome (...) prospect of transferring a ‘non-empirical’ warrant from premises about our own mental states and about philosophical theory to a conclusion about external environment or internal architecture seems to depend upon little more than the possibility of knowledge by inference. (The use of the scare-quoted term ‘non-empirical’ is explained a couple of paragraphs further on.). (shrink)

IT IS SHOWN IN DETAIL THAT RECENT ACCOUNTS FAIL TO DISTINGUISH BETWEEN INTENTIONALITY AND MERELY CAUSALLY DISPOSITIONAL STATES OF INORGANIC PHYSICAL OBJECTS—A QUICK ROAD TO PANPSYCHISM. THE CLEAR NEED TO MAKE SUCH A DISTINCTION GIVES DIRECTION FOR FUTURE WORK. A BEGINNING IS MADE TOWARD PROVIDING SUCH AN ACCOUNT.

In this book, psychologists and philosophers describe and discuss a range of case studies of delusional beliefs, drawing out general lessons both for the cognitive architecture of the mind and for the notion of rationality, and exploring connections between the delusional beliefs that occur in schizophrenia and the flawed understanding of beliefs that is characteristic of autism.

This chapter gives substance to the idea of a ‘communitarian value-driven epistemology’ by developing and combining ideas from Edward Craig's and Bernard Williams' ‘epistemic genealogy’ and Barry Barnes' and Steven Shapin's ‘sociology of knowledge’. In order to make transparent how this project might slot into more familiar, or more mainstream, projects, the paper maintains throughout a critical dialogue with Jon Kvanvig's position. The chapter is structured around an attempt to defend Craig's position against Kvanvig's criticisms: by treating the institution of (...) testimony as a collective good underwritten by the intrinsic and interrelated values of accuracy and sincerity; by rendering protoknowledge attributions as ascriptions of honour; and by allowing attributions of protoknowledge to be intertwined with attributions of freedom. The view that emerges is that the core of our knowledge practices comprises institutions of testimony, and that these practices are a collective good. (shrink)

In Spinoza’s metaphysics, we encounter many puzzling doctrines that appear to entangle metaphysical notions with cognitive, logical, and epistemic ones. According to him, a substance is that which can be conceived through itself and a mode is that which is conceived through another. Thus, metaphysical notions, substance and mode, are defined through a notion that is either cognitive or logical, being conceived through. He defines an attribute as that which an intellect perceives as constituting the essence of a substance. Intellectual (...) perception, something cognitive, is used to define an attribute, something metaphysical. And he claims that if something exists there is a reason why it exists and if something doesn’t exist there is also a reason why it doesn’t. Thus, a reason, something cognitive or epistemic, is necessary for existence or nonexistence. What are we to make of the intimate connections that Spinoza sees between metaphysical, cognitive, logical, and epistemic notions? Between being and reason? In this book, I argue for what might be called a realist interpretation: although Spinoza is confident that the order of being mirrors the order of reason, he believes that they are two orders, not one. There is inherence over and above conceptual dependence; there is causation in addition to causal explanation; the world has a nature that we can grasp and that our way of grasping it does not interpose an impenetrable conceptual veil between it and us. (shrink)

In this analytically oriented work, Peterson articulates and defends five moral principles for addressing ethical issues related to new and existing technologies: the cost-benefit principle, the precautionary principle, the sustainability principle, the autonomy principle, and the fairness principle.

I review and reconsider some of the themes of ‘Two notions of necessity’ (Davies and Humberstone, 1980) and attempt to reach a deeper understanding and appreciation of Gareth Evans’s reflections (in ‘Reference and contingency’, 1979) on both modality and reference. My aim is to plot the relationships between the notions of necessity that Humberstone and I characterised in terms of operators in two-dimensional modal logic, the notions of superficial and deep necessity that Evans himself described, and the epistemic notion of (...) a priority. (shrink)

: Perhaps the central problem which preoccupies Spinoza as a moral philosopher is the conflict between reason and passion. He belongs to a long tradition that sees the key to happiness and virtue as mastery and control by reason over the passions. This mastery, however, is hard won, as the passions often overwhelm its power and subvert its rule. When reason succumbs to passion, we act against our better judgment. Such action is often termed 'akratic'. Many commentators have complained that (...) the psychological principles that Spinoza appeals to in his account of akrasia are mere ad hoc modifications to his philosophical psychology. I show, on the contrary, that these principles follow from some of the most important and interesting aspects of Spinoza's philosophy of mind. (shrink)

He then argues that (1), (2) and (3) constitute an inconsistent triad as follows (1991, p. 15): Suppose (1) that Oscar knows a priori that he is thinking that water is wet. Then by (2), Oscar can simply deduce E, using premisses that are knowable a priori, including the premiss that he is thinking that water is wet. Since Oscar can deduce E from premisses that are knowable a priori, Oscar can know E itself a priori. But this contradicts (3), (...) the assumption that E cannot be known a priori. Hence (1), (2), and (3) are inconsistent. McKinsey’s conclusion is that ‘anti-individualism is inconsistent with privileged access’ (ibid.). (shrink)

Starting from Dennett's distinction between personal and sub-personal levels of description, I consider the relationships amongst three levels: the personal level, the level of information-processing mechanisms, and the level of neurobiology. I defend a conception of the relationship between the personal level and the sub-personal level of information-processing mechanisms as interaction without reduction . Even given a nonreductionist conception of persons, philosophical theorizing sometimes supports downward inferences from the personal to the sub-personal level. An example of a downward inference is (...) provided and an objection is considered. (shrink)

Anosognosia is literally ‘unawareness of or failure to acknowledge one’s hemi- plegia or other disability’ (OED). Etymology would suggest the meaning ‘lack of knowledge of disease’ so that anosognosia would include any denial of impairment, such as denial of blindness (Anton’s syndrome). But Babinski, who introduced the term in 1914, applied it only to patients with hemiplegia who fail to acknowledge their paralysis. Most commonly, this is failure to acknowledge paralysis of the left side of the body following damage to (...) the right hemisphere of the brain. In this paper, we shall mainly be concerned with anosognosia for hemiplegia. But we shall also use the term ‘anosognosia’ in an inclusive way to encompass lack of knowledge or acknowledgement of any impairment. Indeed, in the construction ‘anosognosia for X’, X might even be anosognosia for some Y. (shrink)

All social theorists and philosophers who seek to explain human action have a 'model of man'; a metaphysical view of human nature that requires its own theory of scientific knowledge. In this influential book, Martin Hollis examines the tensions that arise from the differing views of sociologists, economists and psychologists. He then develops a rationalist model of his own which connects personal and social identity through a theory of rational action and a priori knowledge, allowing humans to both act (...) freely and still be a subject for scientific explanation. Presented in a fresh series livery and including a specially commissioned preface written by Geoffrey Hawthorn, Hollis's important work is made available to a new generation of readers. (shrink)

The aim of this paper is to demonstrate a _prima facie_ tension between our commonsense conception of ourselves as thinkers and the connectionist programme for modelling cognitive processes. The language of thought hypothesis plays a pivotal role. The connectionist paradigm is opposed to the language of thought; and there is an argument for the language of thought that draws on features of the commonsense scheme of thoughts, concepts, and inference. Most of the paper (Sections 3-7) is taken up with the (...) argument for the language of thought hypothesis. The argument for an opposition between connectionism and the language of thought comes towards the end (Section 8), along with some discussion of the potential eliminativist consequences (Sections 9 and. (shrink)

Force Fields collects the recent essays of Martin Jay, an intellectual historian and cultural critic internationally known for his extensive work on the history of Western Marxism and the intellectual migration from Germany to America.

Essays by various philosphers on the work of Tyler Burge and Burge's extensive responses.

There has never been a time when ‘following the science’ has been more important for humanity. At no other point in history have we had such advanced knowledge and technology at our fingertips, nor had such astonishing capacity to determine the future of our planet. But the decisions we must make on how science is applied belong outside the lab and should be the outcome of wide public debate. For that to happen, science needs to become part of our common (...) culture. Science is not just for scientists: if it were, it could never save us from the multiple crises we face. For science can save us, if its innovations mesh carefully into society and its applications are channelled for the common good. As Martin Rees argues in this expert and personal analysis of the scientific endeavour on which we all depend, we need to think globally, we need to think rationally and we need to think long-term, empowered by twenty-first-century technology but guided by values that science alone cannot provide. (shrink)

Die Abhandlung "Sein und Zeit" erschien zuerst im Frühjahr 1927 in dem von Edmund Husserl herausgegebenen "Jahrbuch für Philosophie und phänomenologische Forschung", Band VIII, und gleichzeitig als Sonderdruck. Als eines der berühmtesten und wirkungsmächtigsten philosophischen Bücher des 20. Jahrhunderts ist es ein unverzichtbarer Quellentext für die Philosophie, übersetzt in über 25 Sprachen der Welt. Dreißig Jahre nach dem Tod Martin Heideggers (1889-1976) wird sein epochemachendes Hauptwerk über den Sinn des Seins nun neu gesetzt aufgelegt, um das Werk seinen zahlreichen (...) Leserinnen und Lesern in aller Welt wieder in einem ansprechenden Druck zu präsentieren. Diese 19. Auflage ist textidentisch, zeilen- und seitengleich mit den zuletzt unveränderten Nachdrucken der 15. anhand der Gesamtausgabe durchgesehenen Auflage mit den Randbemerkungen aus dem Handexemplar des Autors im Anhang. (shrink)

Argument and imagination are often interdependent. The Aesthetics of Argument is concerned with how this relationship may bear on argument's concern with truth, not just persuasion, and with the enhancement of understanding such interdependence may bring. The rationality of argument, conceived as the advancement of reasons for or against a claim, is not simply a matter of deductive validity. Whether arguments are relevant, have force, or look foolish cannot always be assessed in these terms. Martin Warner presents a series (...) of case studies which explore how analogy, metaphor, narrative, image, and symbol can be used in different ways to frame one domain in terms of another, and how criteria drawn from the study of imaginative literature may have a bearing on their truth-aptness. (shrink)

: Is Peirce's esthetic relevant for the philosophy of art—what is usually referred to today as aesthetics? At first glance Peirce's idiosyncratic esthetic seems quite unconcerned with issues of art. Yet a careful examination reveals that this is not the case. Thus, rather than attempt to "apply" Peirce's views to some aspect of the practice or the theory of art (e.g., creativity, historiography of art, style, genre), or even to a particular work of art, my intention is to examine how (...) art fits into Peirce's own conception of his esthetic theory. The argument is divided into two parts. In the first section I present Peirce's conception of esthetics in the context of the normative sciences. I argue that esthetics connects with various strands of Peirce's philosophy, most notably his cosmology, his agapasm and with the way that important aspects of them hang together around the principle of abduction and the corresponding notion insight. In the second section, I consider in what way art may be said to be admirable, to contribute to the summum bonum. I try to show that Peirce's esthetic suggests that what attracts us towards art is first and foremost a semeiotic quality qua quality of mind or quality of Thirdness. (shrink)

Natural languages are vehicles of information, arguably the most important, certainly the most ubiquitous that humans possess. Our everyday interactions with the world, with each other and with ourselves depend on them. And even where in the specialised contexts of science we use dedicated formalisms to convey information, their use is embedded in natural language.1..