Colour has long been a source of fascination to both scientists and philosophers. In one sense, colours are in the mind of the beholder, in another sense they belong to the external world. Colours appear to lie on the boundary where we have divided the world into 'objective' and 'subjective' events. They represent, more than any other attribute of our visual experience, a place where both physical and mental properties are interwoven in an intimate and enigmatic way. -/- The last (...) few decades have brought fascinating changes in the way that we think about 'colour' and the role 'colour' plays in our perceptual architecture. In Colour Perception: Mind and the physical world, leading scholars from cognitive psychology, philosophy, neurophysiology, and computational vision provide an overview of the contemporary developments in our understanding of colours and of the relationship between the 'mental' and the 'physical'. With each chapter followed by critical commentaries, the volume presents a lively and accessible picture of the intellectual traditions which have shaped research into colour perception. -/- Written in a non-technical style and accessible to an interdisciplinary audience, the book will provide an invaluable resource for researchers in colour perception and the cognitive sciences. (shrink)

In the debate about the moral status of human embryos, it is not always clear which arguments are actually disputed. This book offers students and researchers, but also laypersons interested in the current debate, the opportunity to inform themselves about the current state of discussion and to learn about the most important arguments in a clear and concise form. These arguments are as follows: Since embryos as members of the species homo sapiens sapiens are human beings, they possess dignity (species (...) argument); embryos develop continuously, i.e. without morally relevant incisions, into adult human beings possessing dignity (continuum argument); embryos are identical with adult human beings possessing dignity (identity argument); embryos have the potential to become human beings, and this potential is without restriction worth protecting (potentiality argument). These arguments are each represented by a pro position and a contra position and defended or criticized. In an accompanying contribution by the editors, the four arguments in context are reconstructed, evaluated, and supported by new arguments. (shrink)

Suppose a fire broke out in a fertility clinic. One had time to save either a young girl, or a tray of ten human embryos. Would it be wrong to save the girl? According to Michael Sandel, the moral intuition is to save the girl; what is more, one ought to do so, and this demonstrates that human embryos do not possess full personhood, and hence deserve only limited respect and may be killed for medical research. We will argue, however, (...) that no relevant ethical implications can be drawn from the thought experiment. It demonstrates neither that one always ought to let the embryos die, nor does it allow for any general conclusion concerning the moral status of human embryos. (shrink)

The so-called ”argument from religious experience’ plays a prominent role in today’s analytical philosophy of religion. It is also of considerable importance to richard Swinburne’s apologetic project. However, rather than joining the polyphonic debate around this argument, the present paper examines the fundamental concept of religious experience. The upshot is that Swinburne neither develops a convincing concept of experience nor explains what makes a religious experience religious. The first section examines some problems resulting mainly from terminology, specifically Swinburne’s use of (...) appear-words as success-verbs. While these problems might be resolved by a recurrence to the observer, the second and third part of our paper present problems not so easily resolved: namely, that Swinburne’s concept of experience as conscious mental events is too broad and inaccurate for its role in the argument given ; and that Swinburne does not even attempt to figure out which features of an experience, when present, turn an experience simpliciter into a distinctly religious experience. Section 4, in conclusion, outlines possible reasons for this unusual and remarkable inaccuracy in conceptualisation. (shrink)

Die Frage, ob «systematische» Philosophie heute noch möglich ist, wird in der Gegenwartsphilosophie kontrovers diskutiert. Sie ist eng verknüpft mit dem Thema «Vernunft und Wirklichkeit». Der Sammelband System der Philosophie? dokumentiert Aspekte dieser Debatte durch Beiträge einer internationalen Autorenschaft.

Electrifying when first delivered in 1973, legendary in the years since, Dieter Henrich's lectures on German Idealism were the first contact a major German philosopher had made with an American audience since the onset of World War II. They remain one of the most eloquent explanations and interpretations of classical German philosophy and of the way it relates to the concerns of contemporary philosophy. Thanks to the editorial work of David Pacini, the lectures appear here with annotations linking them (...) to editions of the masterworks of German philosophy as they are now available. Henrich describes the movement that led from Kant to Hegel, beginning with an interpretation of the structure and tensions of Kant's system. He locates the Kantian movement and revival of Spinoza, as sketched by F. H. Jacobi, in the intellectual conditions of the time and in the philosophical motivations of modern thought. Providing extensive analysis of the various versions of Fichte's Science of Knowledge, Henrich brings into view a constellation of problems that illuminate the accomplishments of the founders of Romanticism, Novalis and Friedrich Schlegel, and of the poet Hölderlin's original philosophy. He concludes with an interpretation of the basic design of Hegel's system. (shrink)

"Der Philosoph und Kunsttheoretiker Dieter Jähnig hat einen bemerkenswerten Text, eine Art Summe seiner Forschung zum Verhältnis zwischen Philosophie und Kunst vorgelegt. Bemerkenswert ist dieser Text aus mehreren Gründen, zum einen, weil er - mit Schelling und Nietzsche - zeigt, dass Kunst nicht zum Objekt gemacht werden darf, sondern selbst eine Quelle des Weltverstehens und der Zeitkritik ist, zum anderen, weil er - mit Platon, Schelling und Nietzsche - in souveräner Weise den mimetischen Charakter der Kunst nicht als Nachahmung, (...) sondern als schöpferische Form des Lebens darstellt. Schließlich zeigt Jähnig im Blick auf Kants dritte Kritik, dass die Kunst der Philosophie Grenzen setzt. Das Stichwort hier ist "Freiheit nicht als Selbstbestimmung sondern als Gunst". All dies sind Schlaglichter einer gedanklichen Helligkeit, die kein anderer mir bekannter Text auf das Verhältnis der Kunst zur Philosophie wirft. Jeder an Philosophie und Kunst Interessierte, ob als Studierender oder Lehrender oder einfach Leser, sollte diesen Text kennen". [Wilhelm Vossenkuhl]. (shrink)

We observe that removing contraction from a standard sequent calculus for first-order predicate logic preserves completeness for the modal fragment.

Der Staat ist ein zentraler geschichts- und sozialwissenschaftlicher Topos in Deutschland wie in Frankreich. In der vergleichenden Forschung zu beiden Landern taucht er hingegen so gut wie nicht auf.

The International Hegel Association accepts as its members philosophers who have published on Hegel and his historical environment or on philosophical problems that have reference to Hegel’s philosophy. Every second year it announces a colloquium at which approximately fifty specialists can take part. Every sixth year an international congress takes place which is open to the general public. The last international congress on ‘Is Systematic Philosophy Possible?’ met in Stuttgart from May 28th to May 30th, 1975. The next colloquium on (...) ‘Schelling and Hegel in Jena, the ultimate formation of Hegel’s System’ will take place in Nizza in 1977. Members of the association will receive a News-letter and will be able to order the supplementary series to the Hegel-Studien at a reduced rate. The annual membership fee is DM 25, -. Applications for membership can be mailed to the President, Professor Dieter Henrich, Philosophisches Seminar, Universität 69 Heidelberg, Marsiliusplatz 1. (shrink)

M. Wetzel: Objektiver Idealismus und Prinzip Subjektivität in der Philosophie der Natur - G. F. Frigo: Aristoteles' Einfluß auf Hegels Naturphilosophie - W. Neuser: Das Anderssein der Idee, das Außereinandersein der Natur und der Begriff - H.-H. von Borzesz-kowski / R. Wahsner: Gibt es eine Logik der Physik als Vorstufe zur Hegelschen Begriffslogik - E.-O. Onnasch: System und Methode in der Philosophie Hegels - B. Braßler: Vorzüge einer Theorie der Dialektik - L. Fleischhacker: Mathematik und Natur, Verwandte oder Fremde - (...) P. Stekeler-Weithofer: Mathematisches und begriffliches Denken in Hegels Wissenschaft der Logik - M. J. Petry: Physik und Mathematik um 1790: Hegel und Schelling als Schüler Pfleiderers - P. Ziche: Raumdimensionen und Prinzipienreduktion. Beweise für die Dreidimensionalität des Raumes bei Schelling und Hegel - T. Bach: Leben als Gattungsprozeß: Historisch-systematische An-merkungen von Pflanze und Tier bei Hegel - S. Büttner: Das Manko des Organischen und die Krankheit als dessen Wahrheit - O. Breidbach: Überlegungen zur Typik des Organischen in Hegels Denken - C. Illies: Die Gene, die Meme und Wir - W. Kellerwessel: Reschers idealistische Dialektik - V. Hösle: Wahrheit und Verstehen. Davidson, Gadamer und das Desiderat einer objektiv-idealistsichen Hermeneutik - P. Várdy: Das Lächerliche und das Absolute - A. Rieckers: Photons and Mcroscopic Reality. (shrink)

Die Arbeit behandelt das Verhältnis von Beobachtungs- und theoretischer Sprache anhand der Typenlogik und der Erkenntnistheorie Bertrand Russells. Seine Typentheorie wird auf seine Erkenntnistheorie angewandt. Seine Typentheorie macht deutlich, warum schon aus formalen Gründen eine theoriefreie Beobachtungssprache unmöglich ist.

Colonization of public education—the process by which schools are overwhelmed and penetrated by non-educational imperatives—is usually believed to be caused by capitalism and the hegemonic ideological structures it produces. In this paper I argue that in the case of the United States an additional mechanism produces strong colonizing effects: the institution of local control. In the context of contemporary institutional conditions, local control is the lynch-pin for the production of socio-economic segregation, cumulative disadvantages, and the mythology of popular control disguising (...) the growing control of public schooling through unaccountable bureaucracies and private corporations. (shrink)

Lattice-gas cellular automaton (LGCA) and lattice Boltzmann (LB) models are promising models for studying emergent behaviour of transport and interaction processes in biological systems. In this chapter, we will emphasise the use of LGCA/LB models and the derivation and analysis of LGCA models ranging from the classical example dynamics of fluid flow to clotting phenomena in cerebral aneurysms and the invasion of tumour cells.

Zeki and co-workers recently proposed that perception can best be described as locally distributed, asynchronous processes that each create a kind of microconsciousness, which condense into an experienced percept. The present article is aimed at extending this theory to metacognitive feelings. We present evidence that perceptual fluency—the subjective feeling of ease during perceptual processing—is based on speed of processing at different stages of the perceptual process. Specifically, detection of briefly presented stimuli was influenced by figure-ground contrast, but not by symmetry (...) or the font of the stimuli. Conversely, discrimination of these stimuli was influenced by whether they were symmetric and by the font they were presented in , but not by figure-ground contrast. Both tasks however were related with the subjective experience of fluency . We conclude that subjective fluency is the conscious phenomenal correlate of different processing stages in visual perception. (shrink)

Dieter Henrich is one of the most respected and frequently cited philosophers in Germany today. His extensive and highly innovative studies of German Idealism and his systematic analyses of subjectivity have significantly impacted on advanced German philosophical and theological debates. Dieter Henrich and Contemporary Philosophy presents a comprehensive analysis of Henrich's work on subjectivity, evaluating it in the context of contemporary debates in both continental and analytic traditions. Familiarising the non-German reader with an important development in contemporary German (...) philosophy, this book explains the significance of subjectivity for any philosophy that attempts to offer existential orientation and contrasts competing conceptions in analytic philosophy and in the social philosophy of Juergen Habermas. Presenting Henrich's philosophy of subjectivity as a credible alternative to analytic philosophy of mind and a radical challenge to Heideggerian, Habermasian, neo-pragmatist, and postmodern positions, Freundlieb argues that a philosophy of the kind developed by Henrich can regain the cultural significance philosophical thinking once possessed. Dieter Freundlieb is Senior Lecturer in the School of Humanities, Griffith University, Australia. (shrink)

Many P4/WC practitioners and theorists privilege the school as a space for thinking and practicing philosophy for/with children. Despite its coercive nature, thinkers such as Jana Mohr Lone, David Kennedy, and Nancy Vansieleghem argue that P4C is a Trojan horse intended to reform the education system from within. I argue, however, that the Trojan horse argument requires us to internalize an incomplete and historically decontextualized understanding of public schools that in turn can reify histories of white supremacy within our CPIs (...) – a consequence that can be particularly harmful when practicing P4C with minority youth. To accurately adjudicate the value of public school classrooms for P4C – especially for those CPIs whose members are primarily Black, Latinx, Indigenous, or other youth of color — I contextualize the Trojan horse argument in the history of race and education in the United States. Through this historical analysis, I conclude that the reformist position becomes increasingly more untenable and that the material history of race and education in fact supports a pessimistic understanding of P4C in education. I end by reflecting on P4C’s need to rethink its privileging of schools as a primary site for philosophical inquiry and caution practitioners against using “social progress” as a justification for how and where they practice their craft. Instead, I encourage them to rethink how and where they practice P4C, based on the local historical and material conditions of the participants. (shrink)

The usefulness of contextually guided processors is investigated a little further. A more general use for binding V1 cell responses than the one in Phillips & Singer's target article is proposed, which takes into account that strong responses of these cells can mean more than the presence of lines and edges. The possibility of different grouping depending on the activities of neighboring cells is essential to the approach.

L'on montre: 1) que l'affirmation tschirnhausienne selon laquelle l'art de découvrir transforme notre nature en une nature quasi surhumaine qui semble assez participer de celle de Dieu, et en laquelle C. Thomasius avait subodoré un fort relent spinoziste, est explicable, et est effectivement expliquée par Tschirnhaus dans sa Medicina mentis, d'une façon qui ne saurait effaroucher un théologien orthodoxe; 2) que, malgré la modernité de certaines vues de Tschirnhaus relatives au rôle de l'expérience, cet auteur n'a pas perçu la véritable (...) fonction de la „confirmation" expérimentale, contrairement à ce qu'on admet fréquemment de nos jours; 3) pourquoi il convient de penser que c'est dans Spinoza que Tschirnhaus a puisé sa conception des définitions génétiques; 4) que, contrairement à l'opinion courante, ie manuscrit de la Mediana mentis a vraisemblablement été envoyé en Hollande en latin . Suivent des indications bibliographiques et un erratum. (shrink)

"Dieter Jähnig's life's work has been devoted to uncovering and exploring the field of tension between philosophy and art. The combination of comprehensive expertise in the field of the arts, together with the willingness of philosophy to radically question itself, has yielded a wealth of critical insights that can have a liberating and objectifying effect on the subject sciences. The many years of study with Jacob Burckhardt have produced an analysis of the different presences of the arts in time (...) that may be considered groundbreaking for the understanding of their 'relation to the world'. This differentiation of the character of works not only touches on methodological questions of reception aesthetics, but also has repercussions on the concept of history in general, which guides the historical-critical sciences." Robert Kudielka. (shrink)

Perceptual fluency is the subjective experience of ease with which an incoming stimulus is processed. Although perceptual fluency is assessed by speed of processing, it remains unclear how objective speed is related to subjective experiences of fluency. We present evidence that speed at different stages of the perceptual process contributes to perceptual fluency. In an experiment, figure-ground contrast influenced detection of briefly presented words, but not their identification at longer exposure durations. Conversely, font in which the word was written influenced (...) identification, but not detection. Both contrast and font influenced subjective fluency. These findings suggest that speed of processing at different stages condensed into a unified subjective experience of perceptual fluency. (shrink)

Starting with D. Scott's work on the mathematical foundations of programming language semantics, interest in topology has grown up in theoretical computer science, under the slogan `open sets are semidecidable properties'. But whereas on effectively given Scott domains all such properties are also open, this is no longer true in general. In this paper a characterization of effectively given topological spaces is presented that says which semidecidable sets are open. This result has important consequences. Not only follows the classical Rice-Shapiro (...) Theorem and its generalization to effectively given Scott domains, but also a recursion theoretic characterization of the canonical topology of effectively given metric spaces. Moreover, it implies some well known theorems on the effective continuity of effective operators such as P. Young and the author's general result which in its turn entails the theorems by Myhill-Shepherdson, Kreisel-Lacombe-Shoenfield and Ceĭtin-Moschovakis, and a result by Eršov and Berger which says that the hereditarily effective operations coincide with the hereditarily effective total continuous functionals on the natural numbers. (shrink)

Kant is by no means the pure rationalist that Husserl and others represented him as being. To the contrary I claim that Kant is an ethical intuitionist when it comes to our recognition of the validity of the moral law. Interpreting Kant’s famous thesis about the “fact of reason”, I will first argue for three interpretative theses: 1. The factum theory explains our insight into the binding character of the moral law; it is a theory of justification. 2. In our (...) consciousness of the categorical imperative, the moral law is immediately given in its unconditional and binding validity. 3. The unconditional validity of the CI is given in the feeling of respect. Drawing on basic thoughts of Reformed Epistemology, I will then sketch a way to defend Kant’s theory. (shrink)