Heuristics are efficient cognitive processes that ignore information. In contrast to the widely held view that less processing reduces accuracy, the study of heuristics shows that less information, computation, and time can in fact improve accuracy. We review the major progress made so far: the discovery of less-is-more effects; the study of the ecological rationality of heuristics, which examines in which environments a given strategy succeeds or fails, and why; an advancement from vague labels to computational models of heuristics; the (...) development of a systematic theory of heuristics that identifies their building blocks and the evolved capacities they exploit, and views the cognitive system as relying on an “adaptive toolbox;” and the development of an empirical methodology that accounts for individual differences, conducts competitive tests, and has provided evidence for people’s adaptive use of heuristics. Homo heuristicus has a biased mind and ignores part of the available information, yet a biased mind can handle uncertainty more efficiently and robustly than an unbiased mind relying on more resource-intensive and general-purpose processing strategies. (shrink)

While theories of rationality and decision making typically adopt either a single-powertool perspective or a bag-of-tricks mentality, the research program of ecological rationality bridges these with a theoretically-driven account of when different heuristic decision mechanisms will work well. Here we described two ways to study how heuristics match their ecological setting: The bottom-up approach starts with psychologically plausible building blocks that are combined to create simple heuristics that fit specific environments. The top-down approach starts from the statistical problem facing the (...) organism and a set of principles, such as the bias– variance tradeoff, that can explain when and why heuristics work in uncertain environments, and then shows how effective heuristics can be built by biasing and simplifying more complex models. We conclude with challenges these approaches face in developing a psychologically realistic perspective on human rationality. (shrink)

Our programmatic article on Homo heuristicus (Gigerenzer & Brighton, 2009) included a methodological section specifying three minimum criteria for testing heuristics: competitive tests, individual-level tests, and tests of adaptive selection of heuristics. Using Richter and Späth’s (2006) study on the recognition heuristic, we illustrated how violations of these criteria can lead to unsupported conclusions. In their comment, Hilbig and Richter conduct a reanalysis, but again without competitive testing. They neither test nor specify the compensatory model of inference they argue (...) for. Instead, they test whether participants use the recognition heuristic in an unrealistic 100% (or 96%) of cases, report that only some people exhibit this level of consistency, and conclude that most people would follow a compensatory strategy. We know of no model of judgment that predicts 96% correctly. The curious methodological practice of adopting an unrealistic measure of success to argue against a competing model, and to interpret such a finding as a triumph for a preferred but unspecified model, can only hinder progress. Marewski, Gaissmaier, Schooler, Goldstein, and Gigerenzer (2010), in contrast, specified five compensatory models, compared them with the recognition heuristic, and found that the recognition heuristic predicted inferences most accurately. (shrink)

One way of dealing with the proliferation of conjectures that accompany the diverse study of the evolution of language is to develop precise and testable models which reveal otherwise latent implications. We suggest how verbal theories of the role of individual development in language evolution can benefit from formal modeling, and vice versa.

Previous studies provided evidence for a connection between language processing and language change. We add to these studies with an exploration of the influence of lexical-distributional properties of words in orthographic space, semantic space, and the mapping between orthographic and semantic space on the probability of lexical extinction. Through a binomial linear regression analysis, we investigated the probability of lexical extinction by the first decade of the twenty-first century (2000s) for words that existed in the first decade of the nineteenth-century (...) (1800s) in eight data sets for five languages: English, French, German, Italian, and Spanish. The binomial linear regression analysis revealed that words that are more similar in form to other words are less likely to disappear from a language. By contrast, words that are more similar in meaning to other words are more likely to become extinct. In addition, a more consistent mapping between form and meaning protects a word from lexical extinction. A nonlinear time-to-event analysis furthermore revealed that the position of a word in orthographic and semantic space continues to influence the probability of it disappearing from a language for at least 200 years. Effects of the lexical-distributional properties of words under investigation here have been reported in the language processing literature as well. The results reported here, therefore, fit well with a usage-based approach to language change, which holds that language change is at least to some extent connected to cognitive mechanisms in the human brain. (shrink)

This book examines an important area of Aristotle's philosophy: the generation of substances. While other changes presuppose the existence of a substance (Socrates grows taller), substantial generation results in something genuinely new that did not exist before (Socrates himself). The central argument of this book is that Aristotle defends a 'hylomorphic' model of substantial generation. In its most complete formulation, this model says that substantial generation involves three principles: (1) matter, which is the subject from which the change proceeds; (2) (...) form, which is the end towards which the process advances; and (3) an efficient cause, which directs the process towards that form. By examining the development of this model across Aristotle's works, Devin Henry seeks to deepen our grasp on how the doctrine of hylomorphism - understood as a blueprint for thinking about the world - informs our understanding of the process by which new substances come into being. (shrink)

This Hackett edition, first published in 1981, is an unabridged and unaltered republication of the seventh edition as published by Macmillan and Company, Limited. From the forward by John Rawls: In the utilitarian tradition Henry Sidgwick has an important place. His fundamental work, The Methods of Ethics, is the clearest and most accessible formulation of what we may call 'the classical utilitarian doctorine.' This classical doctrine holds that the ultimate moral end of social and individual action is the greatest (...) net sum of the happiness of all sentient beings. Happinesss is specified by the net balance of pleasure over pain, or, as Sidgwick preferred to say, as the net balance of agreeable over disagreeable consciousness.... (shrink)

"L'oeuvre d'art est une tentative vers l'unique, elle s'affirme comme un tout, comme un absolu et, en même temps, elle appartient à un système de relations complexes [...]. Elle est matière et elle est esprit, elle est forme et elle est contenu [...]. Elle est créatrice de l'homme, créatrice du monde et elle installe dans l'histoire un ordre qui ne se réduit à rien d'autre." Un Eloge de la main complète ce texte. "La main arrache le toucher à sa passivité (...) réceptive, elle l'organise pour l'expérience et pour l'action [...]. Elle se mesure avec la matière qu'elle métamorphose, avec la forme qu'elle transfigure. Educatrice de l'homme, elle le multiplie dans l'espace et dans le temps." [Source : 4e de couv.]. (shrink)

Translator's preface -- Introduction: The question of phenomenology -- Hyletic phenomenology and material phenomenology -- The phenomenological method -- Pathos-with reflections on Husserl's Fifth cartesian meditation -- For a phenomenology of community.

Giroux argues that challenge gives new meaning to the importance of resistance, the relevance of pedagogy, and the significance of political agency.

A highly readable historical survey of the major developments in scientific thought and the impact of science on Western culture, this book takes the reader from ancient times through to the twentieth century. Organized chronologically, the book explores the history of studies of the natural world, and man's role within that world, in a single volume"--Provided by publisher.

For the past 30 years, Paget Henry has been one of the most articulate and creative voices in Caribbean scholarship, making seminal contributions to the study of Caribbean political economy, C.L.R. James studies, critical theory, phenomenology, and Africana philosophy. This volume includes some of his most important essays from across his remarkable career, providing an introduction to a broad range of pressing contemporary themes and to the unique mind of one of the leading Caribbean intellectuals of his generation.

Of all the developments in twentieth century physics, none has given rise to more heated debates than the changes in our understanding of science precipitated by the quantum revolution''. In this revolution, Niels Bohr's dramatically non-classical theory of the atom proved to be the springboard from which the new atomic physics drew it's momentum. Furthermore, Bohr's contribution was crucial not only because his interpretation of quantum mechanics became the most widely accepted view but also because in his role as educator (...) and spokesman for atomic physics Bohr was very much the patron spirit of the entire quantum revolution. The conceptual framework which he proposed to provide a new viewpoint for understanding the quantum theoretical description of atomic systems became for most of this century the dominant outlook of countless productive experimental and theoretical physicists. He called this new framework complementarity''. (shrink)

"Science et méthode" de Henri Poincaré. Mathématicien, physicien et philosophe français (1854-1912).

Introduction -- Ethics and politics -- Ethical judgments -- Pleasure and desire -- Free will -- Ethical principles and methods -- Egoism and self-love -- Chapter viii-intuitionism -- Good -- Book II: Egoism -- The principle and method of egoism -- Empirical hedonism -- Empirical hedonism (continued) -- Objective hedonism and common sense -- Happiness and duty -- Deductive hedonism -- Book III: Intuitionism -- Intuitionism -- Virtue and duty -- The intellectual virtues -- Benevolence -- Justice -- Laws and (...) promises -- Classification of duties. truth -- Other social duties and virtues -- Self-regarding virtues -- Courage, humility, etc. -- Review of the morality of common sense -- Motives or springs of action as subjects of moral judgment -- Philosophical intuitionism -- Ultimate good -- Book IV: Utilitarianism -- The meaning of utilitarianism -- The proof of utilitarianism -- The relation of utilitarianism to the morality of common sense -- The method of utilitarianism -- The method of utilitarianism (continued) -- Concluding chapter: The mutual relations of the three methods. (shrink)

" Vivid . . . immense clarity . . . the product of a brilliant and extremely forceful intellect." — Journal of the Royal Naval Scientific Service "Still a sheer joy to read." — Mathematical Gazette "Should be read by any student, teacher or researcher in mathematics." — Mathematics Teacher The originator of algebraic topology and of the theory of analytic functions of several complex variables, Henri Poincare (1854–1912) excelled at explaining the complexities of scientific and mathematical ideas to lay (...) readers. Science and Method, written in 1908, has been appreciated by a wide audience of nonprofessionals and translated into many languages. It defines the basic methodology and psychology of scientific discovery, particularly in regard to mathematics and mathematical physics. Drawing on examples from many fields, it explains how scientists analyze and choose their working facts, and it explores the nature of experimentation, theory, and the mind. 1914 edition. Translated by Francis Maitland. (shrink)

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work was reproduced from the original artifact, and remains as true to the original work as possible. Therefore, you will see the original copyright references, library stamps (as most of these works have been housed in our most important libraries around the world), and other notations in the work. This work is in the public domain (...) in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. As a reproduction of a historical artifact, this work may contain missing or blurred pages, poor pictures, errant marks, etc. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant. (shrink)

Le savant et la science -- Le raisonnement mathématique -- La mécanique nouvelle -- La science astronomique.

It is argued that the principles of classical physics are inimical to the development of a satisfactory science of consciousness The problem is that insofar as the classical principles are valid consciousness can have no e ect on the behavior and hence on the survival prospects of the organisms in which it inheres Thus within the classical framework it is not possible to explain in natural terms the development of consciousness to the high level form found in human beings In (...) quantum theory on the other hand consciousness can be dynamically e cacious quantum the ory does allows consciousness to in uence behavior and thence to evolve in accordance with the principles of natural selection However this evo lutionary requirement places important constraints upon the details of the formulation of the quantum dynamical principles.. (shrink)

Bringing together evolutionary biology, psychology, and philosophy, Henry Plotkin presents a new science of knowledge, one that traces an unbreakable link between instinct and our ability to know.

An EXACT reproduction from the original book BODY AND WILL: BEING AN ESSAY CONCERNING WILL IN ITS METAPHYSICAL, PHYSIOLOGICAL and PATHOLOGICAL ASPECTS by Henry Maudsley first published in 1884. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print (...) as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book. (shrink)

Moral reasoning is individual or collective practical reasoning about what, morally, one ought to do. Philosophical examination of moral reasoning faces both distinctive puzzles — about how we recognize moral considerations and cope with conflicts among them and about how they move us to act — and distinctive opportunities for gleaning insight about what we ought to do from how we reason about what we ought to do.

This book explains, in simple but accurate terms, how orthodox quantum mechanics works. The author, a distinguished theoretical physicist, shows how this theory, realistically interpreted, assigns an important role to our conscious free choices. Stapp claims that mainstream biology and neuroscience, despite nearly a century of quantum physics, still stick essentially to failed classical precepts in which mental intentions have no effect upon our bodily actions. He shows how quantum mechanics provides a rational basis for a better understanding of this (...) connection, even allowing an explanation of certain phenomena currently held to be "paranormal". These ideas have major implications for our understanding of ourselves and our mental processes, and thus also for the meaningfulness of our lives. (shrink)

"La Valeur de la Science" de Henri Poincaré. Mathématicien, physicien et philosophe français (1854-1912).

I HEARTILY accept the motto, “That government is best which governs least;” and I should like to see it acted up to more rapidly and systematically. Carried out, it finally amounts to this, which also I believe,—“That government is best which governs not at all;” and when men are prepared for it, that will be the kind of government which they will have. Government is at best but an expedient; but most governments are usually, and all governments are sometimes, inexpedient. (...) The objections which have been brought against a standing army, and they are many and weighty, and deserve to prevail, may also at last be brought against a standing government. The standing army is only an arm of the standing government. The government itself, which is only the mode which the people have chosen to execute their will, is equally liable to be abused and perverted before the people can act through it. Witness the present Mexican war, the work of comparatively a few individuals using the standing government as their tool; for, in the outset, the people would not have consented to this measure. This American government,—what is it but a tradition, though a recent one, endeavoring to transmit itself unimpaired to posterity, but each instant losing some of its integrity? It has not the vitality and force of a single living man; for a single man can bend it to his will. It is a sort of wooden gun to the people themselves. But it is not the less necessary for this; for the people must have some complicated machinery or other, and hear its din, to satisfy that idea of government which they have. Governments show thus how successfully men can be imposed on, even impose on themselves, for their own advantage. It is excellent, we must all allow. Yet this government never of itself furthered any enterprise, but by the alacrity with which it got out of its way. It does not keep the country free. It does not settle the West. It does not educate. The character inherent in the Ameri-. (shrink)

A part of the “return to religion” now evident in European philosophy, this book represents the culmination of the career of a leading phenomenological thinker whose earlier works trace a trajectory from Marx through a genealogy of psychoanalysis that interprets Descartes’s “I think, I am” as “I feel myself thinking, I am.” In this book, Henry does not ask whether Christianity is “true” or “false.” Rather, what is in question here is what Christianity considers as truth, what kind of (...) truth it offers to people, what it endeavors to communicate to them, not as a theoretical and indifferent truth, but as the essential truth that by some mysterious affinity is suitable for them, to the point that it alone is capable of ensuring them salvation. In the process, Henry inevitably argues against the concept of truth that dominates modern thought and determines, in its multiple implications, the world in which we live. Henry argues that Christ undoes “the truth of the world,” that He is an access to the infinity of self-love, to a radical subjectivity that admits no outside, to the immanence of affective life found beyond the despair fatally attached to all objectifying thought. The Kingdom of God accomplishes itself in the here and now through the love of Christ in what Henry calls “the auto-affection of Life.” In this condition, he argues, all problems of lack, ambivalence, and false projection are resolved. (shrink)

Both an ideal entrée for beginning readers and a solid text for scholars, the second edition of Peter Kalkavage's acclaimed translation of Plato's _Timaeus_ brings enhanced accessibility to a rendering well known for its faithfulness to the original text. An extensive essay offers insights into the reading of the work, the nature of Platonic dialogue, and the cultural background of the _Timaeus_. Appendices on music, astronomy, and geometry provide additional guidance. A brief outline of the themes of the work, a (...) detailed glossary, and a selected bibliography are also included. (shrink)

Ce livre n'est pas un expose de la metaphysique cartesienne, mais s'attache a la pensee qui l'anime et qui cherche en elle son expression. Ce mot expression introduit un premier postulat: une philosophie n'a de sens que par reference a une certaine vision du monde dont precisement elle veut etre l'expression. A l'origine il y a un esprit qui regarde l'univers, l'homme, Dieu et qui s'etonne de les voir comme on ne les a encore jamais vus: c'est cette vision neuve (...) qu'il veut exprimer dans un texte qui est, a la fois, pensee coherente et parole communicable. Qui dit expression dit donc volonte de communication. La vision du monde - c'est le second postulat - n'est en aucune facon une sorte d'essence intemporelle et elle ne peut etre separee de son environnement historique. Ainsi tout texte a deux contextes: l'ensemble ordonne d'idees duquel il tient son sens et un certain dialogue qu'il doit rendre propice a la transmission de ce sens, les interlocuteurs n'appartenant pas tous au meme milieu culturel, comme on dit aujourd'hui. (shrink)

Much as we would like to conceive empirical thought as rationally grounded in experience, pitfalls await anyone who tries to articulate this position, and ...

This work is organized alphabetically and more like a dictionary than an encyclopedia.

Despite there being little consensus on what intelligence is or how to measure it, the media and the public have become increasingly preoccupied with the concept owing to recent accomplishments in machine learning and research on artificial intelligence (AI). Governments and corporations are investing billions of dollars to fund researchers who are keen to produce an ever‐expanding range of artificial intelligent systems. More than 30 countries have announced such research initiatives over the past 3 years 1. For example, the EU (...) Commission pledged to increase the investment in AI research to €1.5 billion by 2020 (from €500 million in 2017), while China has committed $2.1 billion towards an AI technology park in Beijing alone 1. This global investment in AI is astonishing and prompts several questions: What are the true possibilities and limitations of AI? What do AI researchers and developers mean by “intelligence”? How does this compare to the everyday concept of intelligence and how the term is other branches of cognitive science? And can machine learning produce anything that is truly “intelligent”? (shrink)

The system GLS, which is a modal sequent calculus system for the provability logic GL, was introduced by G. Sambin and S. Valentini in Journal of Philosophical Logic, 11, 311–342,, and in 12, 471–476,, the second author presented a syntactic cut-elimination proof for GLS. In this paper, we will use regress trees in order to present a simpler and more intuitive syntactic cut derivability proof for GLS1, which is a variant of GLS without the cut rule.

t. 1. De la phénoménologie -- t. 2. De la subjectivité -- t. 3. de l'art et du politique -- t. 4. Sur léthique et la religion.

This edition contains a new introduction by Stefan Kipfer, explaining the book’s contemporary ramifications in the ever-expanding reach of the urban in the ...