Does feature evolution stop once we have acquired sufficient features to perform a recognition task? With extended practice, novices may develop a more sophisticated feature space that allows them to perform more accurately or quickly. Our work on perceptual expertise indicates that feature learning and reorganization can continue even after an initial set of features is available to represent a novel class of objects.

Perceptual expertise refers to learning that is specific to a domain, that transfers to new items within the trained domain, and that leads to automatic processing in the sense that expertise effects can be measured across a variety of tasks. It can be argued that most of us possess some degree of perceptual expertise in a least one, if not several domains, thereby giving the study of perceptual expertise broad application. Some object categories may in fact be objects of perceptual (...) expertise to the majority of people: Faces appear to be one such example. Thus, the use of face stimuli, or the comparison of face and object perception, can be a powerful way to ask whether a given process is influenced by perceptual expertise. Here, we emphasize one characteristic way that face processing appears to differ from nonface processing: that is, the degree to which they recruit a “holistic” rather than a “featural” perceptual strategy. This review brings evidence that expertise influences perceptual processing together with recent findings that the capacity of visual short-term memory is greater in perceptual experts and explores the relationship between the two. (shrink)

This study explores the effect of individuation training on the acquisition of race-specific expertise. First, we investigated whether practice individuating other-race faces yields improvement in perceptual discrimination for novel faces of that race. Second, we asked whether there was similar improvement for novel faces of a different race for which participants received equal practice, but in an orthogonal task that did not require individuation. Caucasian participants were trained to individuate faces of one race (African American or Hispanic) and to make (...) difficult eye-luminance judgments on faces of the other race. By equating these tasks we are able to rule out raw experience, visual attention, or performance/success-induced positivity as the critical factors that produce race-specific improvements. These results indicate that individuation practice is one mechanism through which cognitive, perceptual, and/or social processes promote growth of the own-race face recognition advantage. (shrink)

Reason, egoism, and utilitarianism, by H. Sidgwick.--Is egoism reasonable? By G. E. Moore.--Ultimate principles and ethical egoism, by B. Medlin.--In defense of egoism, by J. Kalin.--Virtuous affections and self-love, by F. Hutcheson.--Our obligation to virtue, by D. Hume.--Duty and interest, by H. A. Prichard.--The natural condition of mankind and the laws of nature, by T. Hobbes.--Why should we be moral? By K. Baier.--Morality and advantage, by D. P. Gauthier.--Bibliographical essay (p. 181-184).

Based on an extensive review of the literature and field surveys, the paper proposes a conceptualization and operationalization of corporate citizenship meaningful in two countries: the United States and France. A survey of 210 American and 120 French managers provides support for the proposed definition of corporate citizenship as a construct including the four correlated factors of economic, legal, ethical, and discretionary citizenship. The managerial implications of the research and directions for future research are discussed.

Feminist critics of the stigmatization of prostitution such as Martha Nussbaum and Sybil Schwarzenbach argue that the features of the practice do not, or at least need not, differ essentially from those of other more respected sorts of labor. I argue that even the least degraded forms of the current practice of prostitution remain objectionable on feminist grounds because patrons demand a semblance of sexual self-expression that engages discriminatory beliefs about women's sexuality.

As intergenerational interactions increase due to an ageing population, the study of emotion-related responses to the elderly is increasingly relevant. Previous research found mixed results regarding affective mimicry – a measure related to liking and affiliation. In the current study, we investigated emotional mimicry to younger and older actors following an encounter with a younger and older player in a Cyberball game. In a complete exclusion condition, in which both younger and older players excluded the participant, we expected emotional mimicry (...) to be stronger for younger vs. older actors. In a partial inclusion condition, in which the younger player excluded while the older player included the participant, we predicted that the difference in player behaviour would lead to a difference in liking. This increased liking of the older interaction partner should reduce the difference in emotional mimicry towards the two different age groups. Results revealed more mimicry for older actors following partial inclusion especially for negative emotions, suggesting inclusive behaviour by an older person in an interaction as a possible means to increase mimicry and affiliation to the elderly. (shrink)

Comment expliquer la persistance d’objets techniques ou scientifiques qui semblent en tout point dépassés? Cet article étudie ce problème, à travers un cas portant sur les modèles d’évaluation du passage de la radioactivité dans l’environnement. Ces modèles apparaissent dans les années 1950 et se fondent alors sur un coefficient unique. De nombreux problèmes conceptuels et pratiques concernant ce paramètre apparaissent et sont alors menés de nombreux travaux de développement d’alternatives à ces modèles qui semblent dépassés. Malgré cela, ceux-ci sont encore (...) aujourd’hui largement majoritaires. Nous expliquons cette situation a priori paradoxale par des raisons « pratiques » et avec des arguments fondés sur les fonctions des modèles et sur leurs usages. (shrink)

Comment expliquer la persistance d’objets techniques ou scientifiques qui semblent en tout point dépassés? Cet article étudie ce problème, à travers un cas portant sur les modèles d’évaluation du passage de la radioactivité dans l’environnement. Ces modèles apparaissent dans les années 1950 et se fondent alors sur un coefficient unique. De nombreux problèmes conceptuels et pratiques concernant ce paramètre apparaissent et sont alors menés de nombreux travaux de développement d’alternatives à ces modèles qui semblent dépassés. Malgré cela, ceux-ci sont encore (...) aujourd’hui largement majoritaires. Nous expliquons cette situation a priori paradoxale par des raisons « pratiques » (coûts techniques, structure sociale de l’expertise) et avec des arguments fondés sur les fonctions des modèles et sur leurs usages. (shrink)

Loudness is the magnitude of the auditory sensation that a listener experiences when exposed to a sound. Several sound attributes are reported to affect loudness, such as the sound pressure level at the listener's ears and the spectral content. In addition to these physical attributes of the stimulus, some subjective attributes also appear to affect loudness. When presented with a sound, a listener interacts with an auditory object and can focus on several aspects of the latter. Loudness appears to differ (...) depending on how listeners apprehend this object, notably whether they focus on the sound that reaches their ears or that is produced by the source. The way listeners focus on the auditory object may depend on the stimulus itself. For instance, they might be more likely to focus on the sound emitted by the source if the latter is visible. The instructions given by the experimenters can also explicitly direct the listener's focus on the sound reaching the ears or emitted by the source. The present review aims at understanding how listeners focus on the auditory object depending on the stimuli and instructions they are provided with, and to describe how loudness depends on this focus. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Artificial Virtues and the Sensible Knave1 David Gauthier Hume's account in the Treatise ofthe artificial virtues, their obligation and motivation, resists easy interpretation. Two passages, taken from his discussion of promises, will introduce, the problems I propose to examine. First: No action can be requir'd of us as our duty, unless there be implanted in human nature some actuating passion or motive, capable of producing the action. This (...) motive cannot be the sense of duty. A sense of duty supposes an antecedent obligation: And where an action is not requir'd by any natural passion, it cannot be requir'd by any natural obligation; since it may be omitted without proving any defect or imperfection in the mind and temper, and consequently without any vice. Now 'tis evident we have no motive leading us to the performance of promises, distinct from a sense of duty. If we thought, that promises had no moral obligation, we never shou'd feel any inclination to observe them.... But as there is naturally no inclination to observe promises, distinct from a sense of their obligation; it follows, that fidelity is no natural virtue, and that promises have no force, antecedent to human conventions.2 Ignore for the present the last sentence quoted. Hume seems clearly to be claiming that (1) an action can be a duty only if there is some motive to perform it other than a sense of duty, and (2) there is no motive to perform an act of promise-keeping other than a sense of duty. From (1) and (2) we may infer that (3) an act of promise-keeping can not be a duty. But since the sense of duty motivates an action only ifit is apprehended to be a duty, then from (2) and (3) we may conclude that (4) there is no motive to perform an act of promise-keeping that does not involve the mistaken apprehension that it is a duty. And the second passage: Afterwards a sentiment of morals concurs with interest, and becomes a new obligation upon mankind.... The difficulties, Volume XVIII Number 2 401 DAVID GAUTHIER that occur to us, in supposing a moral obligation to attend promises, we either surmount or elude. For instance; the expression of a resolution is not commonly suppos'd to be obligatory; and we cannot readily conceive how the making use of a certain form of words shou'd be able to cause any material difference. Here, therefore, we feign a new act ofthe mind, which we call the willing an obligation; and on this we suppose the morality to depend. But we have prov'd already, that there is no such act of the mind, and consequently that promises impose no natural obligation. (T 523) This time, ignore for the present the first sentence. The remainder would seem to confirm my reading ofthe first passage. Hume claims that (5) there is no natural obligation to perform an act of promise-keeping, but (6) we feign the willing of such an obligation. If, as Hume has claimed in the previous passage, (2) there is no motivation to perform an act ofpromise-keeping other than a sense ofduty, and if obligation and duty may be taken as equivalent, then we may conclude as before that (4) there is no motive to perform an act of promise-keeping that does not involve the mistaken apprehension that it is a duty. In his theory of the artificial virtues and vices, Hume considers "the three fundamental laws ofnature, thatofthestabilityofpossession, of its transference by consent, and of the performance of promises" (T 526). It would seem, from the passages cited, that Hume must suppose that there is no real obligation to keep promises, but only a feigned obligation. And since the reasoning that Hume employs in the first ofthe passages that I have cited is explicitly identified with "that reasoning, which prov'd justice in general to be an artificial virtue" (T 518), it seems clear that he must also suppose that there is no real obligation to uphold stability of possession and its transference by consent—no real obligation to observe the other laws of justice or equity.3... (shrink)

Biobanks correspond to different situations: research and technological development, medical diagnosis or therapeutic activities. Their status is not clearly defined. We aimed to investigate human biobanking in Europe, particularly in relation to organisational, economic and ethical issues in various national contexts. Data from a survey in six EU countries were collected as part of a European Research Project examining human and non-human biobanking. A total of 147 institutions concerned with biobanking of human samples and data were investigated by questionnaires and (...) interviews. Most institutions surveyed belong to the public or private non-profit-making sectors, which have a key role in biobanking. This activity is increasing in all countries because few samples are discarded and genetic research is proliferating. Collections vary in size, many being small and only a few very large. Their purpose is often research, or research and healthcare, mostly in the context of disease studies. A specific budget is very rarely allocated to biobanking and costs are not often evaluated. Samples are usually provided free of charge and gifts and exchanges are the common rule. Good practice guidelines are generally followed and quality controls are performed but quality procedures are not always clearly explained. Associated data are usually computerised. Biobankers generally favour centralisation of data rather than of samples. Legal and ethical harmonisation within Europe is considered likely to facilitate international collaboration. We propose a series of recommendations and suggestions arising from the EUROGENBANK project. (shrink)

The principle of respect for autonomy is increasingly under siege as a valuable component of healthcare ethics. Its critics charge that it has been elevated to a position out of proportion to its contribution, so that the individual's wishes and rights have come to dominate healthcare decisionmaking, while obligations and responsibilities are ignored or devalued. If we are to salvage respect for autonomy we must find a way to reconnect the individual and the community, rights and responsibilities, in the way (...) we think about, discuss, and make healthcare decisions. (shrink)

The current interest in and discussion of virtue ethics suggests that this approach to moral decisionmaking has several distinct advantages as applied to ethical issues in healthcare delivery. For the most part, calls to incorporate the virtues of the healthcare provider in discussions of these issues have sought to supplement rather than totally replace traditional ethical theories, such as the utilitarian focus on maximizing the best overall consequences and the Kantian concern to act on the duty of respect for persons. (...) Including virtue-based ethics in such discussions allows for a more eclectic view of what should be considered in resolving difficult moral problems. As many critics of the purely principle-based approach have noted, real moral dilemmas are usually quite messy and are not easily susceptible to satisfactory resolution solely on the basis of abstract moral theories or principles. (shrink)

It may be that denouncing the ideals of objectivity or neutrality associated with the sciences leads us into a trap: that of accepting, in order to criticize it, that there would be a common identity for the many ways to produce science. Learning to laugh, we choose to laugh with and laugh at. But we accept the risk of being interested, that is, of giving up the position of a judge.

In part through correcting mistranslations of key passages in the "de logica" part of his "de corpore," hobbes is shown to have held a theory in which the intention to communicate enters into the definition of signification; and in which speech requires, In addition, (1) socially agreed-Upon correlations between kinds of utterances and kinds of things, And (2) an interrelationship of such utterances (or 'words') in what hobbes calls 'contexture'. It is shown that hobbes did not hold that for a (...) linguistic expression to have meaning is for it to stand for something, Or that what an expression means is what it stands for--Positions commonly, And mistakenly, Attributed to him. (shrink)

Alfred North Whitehead has never gone out of print, but for a time he was decidedly out of fashion in the English-speaking world. In a splendid work that serves as both introduction and erudite commentary, Isabelle Stengersâe"one of todayâe(tm)s leading philosophers of scienceâe"goes straight to the beating heart of Whiteheadâe(tm)s thought. The product of thirty yearsâe(tm) engagement with the mathematician-philosopherâe(tm)s entire canon, this volume establishes Whitehead as a daring thinker on par with Gilles Deleuze, Felix Guattari, and Michel Foucault. Reading (...) the texts in broadly chronological order while highlighting major works, Stengers deftly unpacks Whiteheadâe(tm)s often complicated language, explaining the seismic shifts in his thinking and showing how he called into question all that philosophers had considered settled after Descartes and Kant. She demonstrates that the implications of Whiteheadâe(tm)s philosophical theories and specialized knowledge of the various sciences come yoked with his innovative, revisionist take on God. Whiteheadâe(tm)s God exists within a specific epistemological realm created by a radically complex and often highly mathematical language. âeoeTo think with Whitehead today,âe Stengers writes, âeoemeans to sign on in advance to an adventure that will leave none of the terms we normally use as they were.âe. (shrink)

In the wake of the 2008 global financial crisis, an important conceptual battleground for democratic theorists ought to be, it would seem, the capitalist firm. We are now painfully aware that the typical model of government in so-called investor-owned companies remains profoundly oligarchic, hierarchical, and unequal. Renewing with the literature of the 1970s and 1980s on workplace democracy, a few political theorists have started to advocate democratic reforms of the workplace by relying on an analogy between firm and state. To (...) the extent that a firm is an organization comparable to the state, it too ought to be ruled along democratic lines. Our paper tests the robustness of the analogy between firm and state by considering six major objections to it: the objection from a difference in ends, the objection from shareholders’ property rights, the objection from worker’s consent, the objection from workers’ exit opportunities, the objection from workers’ expertise, and the objection from the fragility of firms. We find all of these objections wanting. While the paper does not ambition to settle the issue of workplace democracy at once, our goal is to pave the way for a more in-depth study of the ways in which firms and states can be compared and the possible implications this may have for our understanding of the nature of managerial authority and the governance of firms. (shrink)

Des millions d'années avant l'apparition de l'homme, la vie avait déjà inventé la roue, le moteur atomique, le sonar, le vol stationnaire, la capture de l'énergie solaire, l'éclairage électrique, le GPS et des myriades de techniques qui nous dépassent encore complètement : cicatrisation, reproduction, congélation suivie de réanimation, et des cerveaux dont chacun des milliards de neurones est un univers informatique. Pour le comprendre, il a fallu attendre que nos propres technologies atteignent les profondeurs moléculaires du vivant, nous révélant que (...) les inventions de la nature étaient infiniment plus complexes que les nôtres. " Le service Recherche et Développement de la nature a 3,8 milliards d'années d'avance sur ceux de nos entreprises ", aime dire Janine Benyus, la naturaliste américaine qui a inventé le concept de biomimétisme. " Il s'agit de nous en inspirer pour pousser plus loin nos propres inventions, mais surtout pour corriger le tir de ces dernières, qui nous ont conduits dans les impasses écologiques que l'on sait. " Il existe trois niveaux de biomimétisme. Le premier consiste à imiter les formes de la nature. Le second, de plus en plus prisé des industriels, repose sur l'imitation des matériaux et des processus naturels. La vraie révolution repose cependant sur le troisième niveau, qui consiste à imiter les stratégies du vivant, sa philosophie. Ce troisième niveau a des implications fascinantes. Ainsi, contrairement à l'image que nous nous faisons de la " loi de la jungle ", la nature ne pratique la compétition que dans 10 % des rapports entre organismes. Les 90 % restants sont fondés sur la coexistence, le mutualisme, la coopération, le commensalisme, le parasitisme et la symbiose. A imiter absolument! (shrink)

An innovative, multifaceted approach to scientific experiments as designed by and shaped through interaction with the modeling process The role of scientific modeling in mediation between theories and phenomena is a critical topic within the philosophy of science, touching on issues from climate modeling to synthetic models in biology, high energy particle physics, and cognitive sciences. Offering a radically new conception of the role of data in the scientific modeling process as well as a new awareness of the problematic aspects (...) of data, this cutting-edge volume offers a multifaceted view on experiments as designed and shaped in interaction with the modeling process. Contributors address such issues as the construction of models in conjunction with scientific experimentation; the status of measurement and the function of experiment in the identification of relevant parameters; how the phenomena under study are reconceived when accounted for by a model; and the interplay between experimenting, modeling, and simulation when results do not mesh. Highlighting the mediating role of models and the model-dependence of data measurement, this volume proposes a normative and conceptual innovation in scientific modeling--that the phenomena to be investigated and modeled must not be precisely identified at the start but specified during the course of the interactions arising between experimental and modeling activities. Contributors: Nancy D. Cartwright, U of California, San Diego; Anthony Chemero, U of Cincinnati; Ronald N. Giere, U of Minnesota; Jenann Ismael, U of Arizona; Tarja Knuuttila, U of South Carolina; Andrea Loettgers, U of Bern, Switzerland; Deborah Mayo, Virginia Tech; Joseph Rouse, Wesleyan U; Paul Teller, U of California, Davis; Michael Weisberg, U of Pennsylvania; Eric Winsberg, U of South Florida. (shrink)