The first English translation of a classic work in vision science from 1936 by a leading figure in the Gestalt movement, covering topics that continue to be major issues in vision research today. This classic work in vision science, written by a leading figure in Germany's Gestalt movement in psychology and first published in 1936, addresses topics that remain of major interest to vision researchers today. Wolfgang Metzger's main argument, drawn from Gestalt theory, is that the objects we perceive (...) in visual experience are not the objects themselves but perceptual effigies of those objects constructed by our brain according to natural rules. Gestalt concepts are currently being increasingly integrated into mainstream neuroscience by researchers proposing network processing beyond the classical receptive field. Metzger's discussion of such topics as ambiguous figures, hidden forms, camouflage, shadows and depth, and three-dimensional representations in paintings will interest anyone working in the field of vision and perception, including psychologists, biologists, neurophysiologists, and researchers in computational vision—and artists, designers, and philosophers. Each chapter is accompanied by compelling visual demonstrations of the phenomena described; the book includes 194 illustrations, drawn from visual science, art, and everyday experience, that invite readers to verify Metzger's observations for themselves. Today's researchers may find themselves pondering the intriguing question of what effect Metzger's theories might have had on vision research if Laws of Seeing and its treasure trove of perceptual observations had been available to the English-speaking world at the time of its writing. (shrink)

The paper displays the similarity between the theory of probabilistic causation developed by Glymour et al. since 1983 and mine developed since 1976: the core of both is that causal graphs are Bayesian nets. The similarity extends to the treatment of actions or interventions in the two theories. But there is also a crucial difference. Glymour et al. take causal dependencies as primitive and argue them to behave like Bayesian nets under wide circumstances. By contrast, I argue the behavior of (...) Bayesian nets to be ultimately the defining characteristic of causal dependence. (shrink)

The paper attempts to rationalize cooperation in the one-shot prisoners' dilemma (PD). It starts by introducing (and preliminarily investigating) a new kind of equilibrium (differing from Aumann's correlated equilibria) according to which the players' actions may be correlated (sect. 2). In PD the Pareto-optimal among these equilibria is joint cooperation. Since these equilibria seem to contradict causal preconceptions, the paper continues with a standard analysis of the causal structure of decision situations (sect. 3). The analysis then raises to a reflexive (...) point of view according to which the agent integrates his own present and future decision situations into the causal picture of his situation (sect. 4). This reflexive structure is first applied to the toxin puzzle and then to Newcomb's problem, showing a way to rationalize drinking the toxin and taking only one box with-out assuming causal mystery (sect. 5). The latter result is finally extended to a rationalization of cooperation in PD (sect. 6). (shrink)

Verfasser behandelt die Frage, ob die Naturwissenschaften ihre gegenwärtige Hauptfunktion, die Lieferung technikrelevanter Erkenntnisse, wirksamer als bisher erfüllen könnten, wenn sie sich nicht nur während revolutionärer Perioden, sondern ununterbrochen theoretisch pluralistisch entwickeln würden. Zuerst wird gezeigt, warum die Naturwissenschaften unter der Forderung nach maximaler Effektivität stehen, anschließend, daß diese Forderung durch einander abwechselnde pluralistische und nichtpluralistische Entwicklungsphasen in höherem Grade erfüllt wird als durch eine permanent pluralistische Entwicklung. Daraus wird geschlossen, daß eine Ersetzung der bisherigen Entwicklungsdynamik in den Naturwissenschaften durch (...) eine permanent pluralistische wenig Realisierungschancen hat. Mit Hilfe der Effektivitätsforderung wird ferner erklärt, warum auch während evolutionärer Perioden in einem gewissen Ausmaß theoretischer Pluralismus besteht, insbesondere, warum in der Praxis neue Theorien bei Mißerfolgen nicht strikt eliminiert werden, sondern Bewährungsfristen erhalten. (shrink)

Aristoteles hat seine Lehrschriften sicherlich sowohl als Vorlesungsmanuskripte für seine Schüler als auch für ein abstraktes Publikum und für die Nachwelt geschrieben. Denn wir finden sowohl Bezugnahmen auf seine Hörer als auch Bemerkungen, die einzelne seiner Thesen selbstbewusst im positiven Sinne mit der Leistung der Vorgänger vergleichen und in einen historischen Zusammenhang stellen, was nur sinnvoll ist, wenn der Vergleich von außen nachvollzogen warden konnte. Wieweit einzelne Schriften zu seinen Lebzeiten in Umlauf kamen, ist unbekannt.

The article deals with some aspects of Dilthey’s thought. First, we examine those elements of Dilthey’s philosophy that play important role in the discussion of his ideas in the 20th century. Next, we refer to the relation of some representatives of late hermeneutics to Dilthey. Finally, we study and evaluate some views of Dilthey’s critics. Key words DILTHEY, HERMENEUTIC PHILOSOPHY.

Let an oracle be called low for prefix-free complexity on a set in case access to the oracle improves the prefix-free complexities of the members of the set at most by an additive constant. Let an oracle be called weakly low for prefix-free complexity on a set in case the oracle is low for prefix-free complexity on an infinite subset of the given set. Furthermore, let an oracle be called low and weakly for prefix-free complexity along a sequence in case (...) the oracle is low and weakly low, respectively, for prefix-free complexity on the set of initial segments of the sequence. Our two main results are the following characterizations. An oracle is low for prefix-free complexity if and only if it is low for prefix-free complexity along some sequences if and only if it is low for prefix-free complexity along all sequences. An oracle is weakly low for prefix-free complexity if and only if it is weakly low for prefix-free complexity along some sequence if and only if it is weakly low for prefix-free complexity along almost all sequences. As a tool for proving these results, we show that prefix-free complexity differs from its expected value with respect to an oracle chosen uniformly at random at most by an additive constant, and that similar results hold for related notions such as a priori probability. Furthermore, we demonstrate that on every infinite set almost all oracles are weakly low but are not low for prefix-free complexity, while by Shoenfield absoluteness there is an infinite set on which uncountably many oracles are low for prefix-free complexity. Finally, we obtain no-gap results, introduce weakly low reducibility, or WLK-reducibility for short, and show that all its degrees except the greatest one are countable. (shrink)

Even after a hundred years, Max Weber's works are still regarded as a viable research program. The ten essays collected here aim to demonstrate just this by providing a philosophical foundation for the research program and an interpretation of its major insights into the economic, scientific, political and religious developments of a secular age.

Das Buch stellt einen Meilenstein in der Aristoteles-Forschung dar, der mit einigen traditionellen Interpretationen der aristotelischen Philosophie radikal bricht. An dem Fundamentalbegriff der Metaphysik, ousia (Sein, Wesen, "Seiendheit"), auf der einen, und dem Fundamentalbegriff der Ethik, eudaimonia (Glück, Glückseligkeit), auf der anderen Seite werden grundlegende Zusammenhänge zwischen der theoretischen und der praktischen Philosophie des Aristoteles dargestellt. Der Autor kommt dabei zu völlig neuen und interessanten Erkenntnissen über die Strukturen des aristotelischen Denkens. Dieses Werk bereichert die Aristoteles-Forschung, die Philosophie des Geistes (...) und die Ethik. (shrink)

If it is the tendency of technology, and especially of information and communication technology, particularly in the context of the smart city, not to empower the human person but rather to disenfranchise them by curtailing their capability to judge and choose, how can one counter this dynamic? Code, make, talk, and pray are suggested as possible modes of resistance.