Si le xixe siècle fut le temps de l’émergence de la figure de la “ grande voyageuse ”, on ne saurait surestimer cette innovation. La hiérarchie des genres de récits de voyage, l’importance du contre-exemple britannique, la condamnation morale de la voyageuse solitaire manifestent assez le sentiment de l’illégitimité du voyage féminin. Pourtant, pèlerines, valétudinaires et touristes se multiplièrent dans un siècle qui fut aussi celui de l’invention du voyage de noces. Cet article tente de prendre la mesure de l’ensemble (...) des normes qui ont alors commandé les pratiques, nombreuses et variées, du voyage féminin. (shrink)

Over the last 40 years or so, there has been an explosion of cultural evolution research in anthropology and archaeology. In each discipline, cultural evolutionists investigate how interactions between individuals translate into group level patterns, with the aim of explaining the diachronic dynamics and diversity of cultural traits. However, while much attention has been given to deterministic processes, we contend that current evolutionary accounts of cultural change are limited because they do not adopt a systematic stochastic approach. First, we show (...) that, in contrast with the intense debates in ecology and population genetics, the importance of stochasticity in evolutionary processes has generated little discussion in the sciences of cultural evolution to date. Second, we speculate on the reasons, both ideological and methodological, why that should be so. Third, we highlight the inadequacy of genetically-inspired stochastic models in the context of cultural evolution modelling, and ask which fundamental stochastic processes might be more relevant to take up. We conclude that the field of cultural evolution would benefit from a stochastic revolution. For that to occur, stochastic models ought to be developed specifically for cultural data and not through a copy-pasting of neutral models from population genetics or ecology. (shrink)

In this collection of essays, Bromberger explores the centrality of questions and predicaments they create in scientific research. He discusses the nature of explanation, theory, and the foundations of linguistics.

We provide characterizations of the equal division values and their convex mixtures, using a new axiom on a fixed player set based on player nullification which requires that if a player becomes null, then any two other players are equally affected. Two economic applications are also introduced concerning bargaining under risk and common-pool resource appropriation.

Using the matching bias example, the aim of the present studies was to show that adults' reasoning biases are due to faulty executive inhibition programming. In the first study, the subjects were trained on Wason's classical card selection task; half were given training in how to inhibit the perceptual matching bias (experimental group) and half in logic without the inhibition component (control group). On the pre- and post-tests, their performance was assessed on the Evans conditional rule falsification task (with a (...) negation in the antecedent of the rule), a task that also involves matching bias. In addition, subjects were tested for perceptual field dependence/independence using the Embedded Figures Test. The results brought out a specific inhibition training effect, as well as a clear-cut relationship in the experimental group between receptiveness to training and perceptual field independence. In the second study, the training paradigm was the same except that on the pre- and post-tests, the negation was in the consequent of the conditional rule (in this case, the perceptual matching response corresponds to the logical response). The subjects succeeded on the pre-test, and the matching-bias inhibition training had a negative effect on post-test performance. This specific negative priming effect confirms the inhibitory impact of our experimental training and outlines the dissociation of inhibition and logical components. (shrink)

Intuitive predictions and judgements under uncertainty are often mediated by judgemental heuristics that sometimes lead to biases. Our micro-developmental study suggests that a presumption of rationality is justified for adult subjects, in so far as their systematic judgemental biases appear to be due to a specific executive-inhibition failure in working memory, and not necessarily to a lack of understanding of the fundamental principles of probability. This hypothesis was tested using an experimental procedure in which 60 adult subjects were trained to (...) inhibit the classical conjunction bias on a frequency judgement task derived from Tversky and Kahneman's work. Pre- and post-test performance was assessed via a probability judgement task. The data indicated a training effect, suggesting that subjects traditionally labelled as "irrational" with respect to the classical rules of inductive reasoning are in fact "inefficient inhibitors". These findings are discussed in terms of a polymorphous view of rationality. (shrink)

This article focuses on the methodological issues involved in combining data collected by questionnaire and interview to study the barriers to educational and professional participation of young people (aged 15-26) living with cystic fibrosis. In addition to an exploratory survey of thirteen professionals, it is based on the cross-referencing of data produced from a short and adapted version of the Measure of the Quality of the Environment-MQE (n=100) and interviews of the “story of life and practices” type with high school (...) students, students, young people looking for work or in employment (n=29). The results show the discrepancy between the responses to the MQE and the narratives produced in the interviews. On the one hand, the responses to the MQE shed light on the impact of the physical environments and the spatial and temporal organisation of the school and work environments on the experience of disability. On the other hand, they seem to underestimate the weight of human environments in producing or reducing barriers to participation. The testimonies gathered in interviews allow us to reassess the importance of these environments. The use of mixed research methods therefore seems essential to understand the respective roles of the material and human components of environments in the production of educational and occupational disability. (shrink)

The Newell Test is an ambitious and promising project, but not without pitfalls. Some of the current criteria are not theoretically neutral, whereas others are unhelpful. To improve the test, the learning and development criteria are reviewed and revised, which suggests adding a maturation criterion as well. Such changes should make the Newell Test more general and useful.

Misunderstanding of the dynamical behavior of the ventilatory system, especially under assisted ventilation, may explain the problems encountered in ventilatory support monitoring. Proportional assist ventilation (PAV) that theoretically gives a breath by breath assistance presents instability with high levels of assistance. We have constructed a mathematical model of interactions between three objects: the central respiratory pattern generator modelled by a modified Van der Pol oscillator, the mechanical respiratory system which is the passive part of the system and a controlled ventilator (...) that follows its own law. The dynamical study of our model shows the existence of two crucial behaviors, i.e. oscillations and damping, depending on only two parameters, namely the time constant of the mechanical respiratory system and a cumulative interaction index. The same result is observed in simulations of spontaneous breathing as well as of PAV. In this last case, increasing assistance leads first to an increase of the tidal volume (VT), a further increase in assistance inducing a decrease in VT, ending in damping of the whole system to an attractive fixed point. We conclude that instabilities observed in PAV may be explained by the different possible dynamical behaviors of the system rather than changes in mechanical characteristics of the respiratory system. (shrink)

This paper examines the discussion about false pleasures in the "Philebus" (36 c3-44 a11). After stressing the crucial importance of this discussion in the economy of the dialogue, it attempts to identify the problematic locus of the possibility of true or false pleasures. Socrates points to it by means of an analogy between pleasure and doxa. Against traditional interpretations, which reduce the distinction drawn in this passage to a distinction between doxa and pleasure on the one hand and their object (...) on the other, it is argued that, rather, Socrates distinguishes between the mere fact of having a doxa or a pleasure, on the one hand, and the content of these acts, on the other hand. Consequently, the possibility for a pleasure to be false does not concern its relation to an object, but the affective content which defines it. In order to show how the affective content of a pleasure can be false, it is necessary to examine the three species of false pleasures described by Socrates in their relation to appearance and imagination. Appearance is not identical with perception for Plato: it consists in a mixture of perception and doxa. As for imagination, it consists in "illustrating" a doxa present in the soul by means of a "quasi-perception". It is the presence of a doxa in each of these processes which makes it possible for them to be true or false, while mere perception cannot be either true or false. It is then argued that according to the "Philebus" pleasure can be false precisely because its affective content is not a mere perception, but either an appearance or an imagination. (shrink)

Neuroconstructivism: How the Brain Constructs Cognition proposes a unifying framework for the study of cognitive development that brings together (1) constructivism (which views development as the progressive elaboration of increasingly complex structures), (2) cognitive neuroscience (which aims to understand the neural mechanisms underlying behavior), and (3) computational modeling (which proposes formal and explicit specifications of information processing). The guiding principle of our approach is context dependence, within and (in contrast to Marr [1982]) between levels of organization. We propose that three (...) mechanisms guide the emergence of representations: competition, cooperation, and chronotopy; which themselves allow for two central processes: proactivity and progressive specialization. We suggest that the main outcome of development is partial representations, distributed across distinct functional circuits. This framework is derived by examining development at the level of single neurons, brain systems, and whole organisms. We use the terms encellment, embrainment, and embodiment to describe the higher-level contextual influences that act at each of these levels of organization. To illustrate these mechanisms in operation we provide case studies in early visual perception, infant habituation, phonological development, and object representations in infancy. Three further case studies are concerned with interactions between levels of explanation: social development, atypical development and within that, developmental dyslexia. We conclude that cognitive development arises from a dynamic, contextual change in embodied neural structures leading to partial representations across multiple brain regions and timescales, in response to proactively specified physical and social environment. (shrink)

We show that provability in the implicational fragment of relevance logic is complete for doubly exponential time, using reductions to and from coverability in branching vector addition systems.

Dans des écrits datant des années 1277-79, le théologien franciscain Pierre de Jean Olivi emploie à cinq reprise le mot averroista, pour critiquer, non pas tant la doctrine de l'unicité de l'intellect possible que ses implications anthropologiques ou angélologiques. Cette critique bien informée, convergente avec d'autres attaques franciscaines, notamment les dénonciations de Roger Bacon, démontre la réalité et l'ampleur d'une entreprise philosophique menée par des maîtres ès arts, s'inspirant d'Averroès, dans les années 1260-70 ; elle indique aussi la diversité de (...) leurs points de vue. Dès son apparition, il n'y a donc pas un, mais plusieurs 'averroïsmes' latin. (shrink)

Not very long ago, Plato'sSophistwas often presented as a dialogue devoted to the problem of being and not-being, entangled with limited success in an inquiry into the nature of the sophist. Thanks to the renewal of interest in the dramatic form of Plato's dialogues, recent works have shown that this entanglement is far from ill-conceived or anecdotal. However, the inquiry into the sophist is itself introduced by another question, concerning the nature of the Stranger from Elea himself. I would like (...) to show that this question and the way in which it is raised in the prologue may themselves shed light on the relations between the many threads which run across this very complex dialogue. (shrink)

People meeting a robot for the first time do not know what it is capable of and therefore how to interact with it—what actions to produce, and how to produce them. Despite social robotics’ long-standing interest in the effects of robots’ appearance and conduct on users, and efforts to identify factors likely to improve human–robot interaction, little attention has been paid to how participants evaluate their robotic partner in the unfolding of actual interactions. This paper draws from qualitative analyses of (...) video-recorded interactions between a robot and groups of participants, in the framework of ethnomethodology and conversation analysis. We analyse the particular ways in which participants shape their embodied actions, how they can reproduce a prior action that failed to obtain a response from the robot; and how they explore the robot’s embodied nature. We find a set of recurrent methods or practices, showing that robot-recipient design displays not only participants’ initial assumptions about the robot’s competences, but also more importantly perhaps their continuous assessment of the robot’s behaviour, and their attempts to adapt to it. Participants locally produce and constantly revise their understanding of the robot as a more or less competent co-participant, drawing from its past, current, and projected conduct and responsiveness. We discuss the implications of these findings for research in robotics and human–robot interactions, and the value of the approach to shed new light on old questions by paying attention to the quality of gesture and the sequential organisation of interaction. (shrink)

Les recherches sur le travail comme valeur au Moyen Âge se sont principalement attardées sur la malédiction prononcée lors de l'expulsion du jardin d'Eden, négligeant l'activité à laquelle se livrait Adam avant la chute (Gn 2,15). A la suite de Philon d'Alexandrie, Augustin a proposé une lecture littérale de ce premier travail, qui a eu un fort impact dans la culture médiévale, certains auteurs (franciscains) comprenant ce verset au sens d'une mission d'améliorer encore la création.

Autour de 1100, pour les jeunes femmes de l’aristocratie éduquées dans des monastères, l’écriture de lettres d’amour fictives à leur maître de rhétorique constituait un apprentissage aussi bien littéraire qu’émotionnel. Comme le rappelle Barbara Newman, les Epistolae duorum amantium, correspondance échangée par Héloïse et Pierre Abélard durant leur liaison, doivent se comprendre dans cette lumière. Leur singularité tient largement au fait qu’Héloïse a choisi de donner corps à une figure poétique, en s’identifiant aux héroïnes tragiques d’Ovide.

L’ouvrage que présente Alexandra Michalewski reprend et articule trois questions classiques dans les études plotiniennes. La première est celle des origines et des sources de la doctrine des Formes intelligibles dans la pensée de Plotin. Si cette doctrine puise dans la pensée platonicienne ses éléments principaux, elle ne peut pourtant s’expliquer entièrement par elle. Cette dernière a connu, en effet, de multiples remaniements et adaptations, elle a suscité de multiples débats, de sorte qu’e...

This paper studies ‘minority’ initiatives to organize sports games. A meta-analysis of published data in the literature identifies the formal appearance taken by each of these initiatives under the Olympic model. But it also conduces to build a number of indicators to answer a series of questions about their logic and strategies. All the initiatives studied are based on an ambivalent posture that, while based on the denunciation of a discriminating space, claim access to it. By an astonishing paradox, ‘non-normative’ (...) actors are driven to reclaim a model that, under cover of Universal, aims to establish a norm that is situated and dated. In practice, they use two types of strategies: a strategy for participation in the Olympics to transform them into a space which represents a fight against exclusion, or a strategy to create alternative events. Whatever the strategy, these initiatives are implemented according to their objectives. Differentiated in their forms—participatory or autonomy—they are also in their purpose. The comparison of these initiatives shows that ultimately, beyond strategies and logic inherent in different social, historical and organizational contexts, the mobilizations of the actors reveal the same ambivalence about the sports model conveyed by the Olympic institution. (shrink)

In this article, I examine the way Aristotle makes use of the methods Plato labelled as "dialectic". After suggesting a unified interpretation of Plato’s dialectic, I show that Aristotle makes room for them not inside the context of demonstrative science, but at the level of the investigation concerning the principles of such a science. These principles are, for the most part, definitions; and Plato’s dialectical methods are designed to search for and obtain definitions. Although Aristotle, contrary to Plato, seems to (...) distinguish between dialectic and philosophy, he relates both to the same capacity, and he suggests that their methods are identical up to a certain point. Moreover, the cognitive state corresponding to dialectic is, for Aristotle as for Plato, intelligence (nous). Nevertheless, there remain important differences between Plato and Aristotle on this issue: while the dialogical dimension of dialectic is for Plato constitutive of philosophy and implies that the philosophical thought is a perpetual motion, it is according to Aristotle what distinguishes dialectic from philosophy, which must for its part come to a rest; and while philosophy presupposes a rupture with sensation according to Plato, Aristotle envisages it in continuity with sensible experience. (shrink)

A new class of values combining marginalistic and egalitarian principles is introduced for cooperative TU-games. It includes some modes of solidarity among the players by taking the collective contribution of some coalitions to the grand coalition into account. Relationships with other class of values such as the Egalitarian Shapley values and the Procedural values are discussed. We propose a strategic implementation of our class of values in subgame perfect Nash equilibrium. Two axiomatic characterizations are provided: one of the whole class (...) of values, and one of each of its extreme points. (shrink)

We study mathematical and algorithmic properties of Lambek's pregroups and illustrate them by the French noun phrase. An algorithm of complexity n3 to solve the reduction problem in an arbitrary free pregroup as well as recognition by a pregroup grammar is presented. This algorithm is then specified to run in linear time. A sufficient condition for a language fragment that makes the linear algorithm complete is given.

Ce texte est consacré à la conception de la liberté absolue chez Schelling, telle qu’elle est exposée dans les Weltalter et accomplie dans la philosophie tardive. À partir d’une élucidation des rapports entre liberté, nécessité et contingence, nous souhaitons montrer que Schelling parvient à développer un nouveau concept de liberté absolue qui d’une part ne concerne pas seulement Dieu mais aussi l’homme, et qui d’autre part dépasse la liberté kantienne comme autonomie et autodétermination, mais aussi la liberté de l’É crit (...) sur la liberté de 1809 comme « pouvoir du bien et du mal ». En outre, nous soutenons que la liberté du Dieu « Seigneur de l’être » de la philosophie de Munich et Berlin se distingue de celle du Dieu seulement « sur-étant » des Weltalter. Seule la « liberté d’être et de ne pas être » du « Seigneur de l’être » représente une forme de liberté à laquelle l’homme peut et doit tendre, une liberté non pas de l’auto-anéantissement, mais du don de soi, liberté suprême qui n’est autre que celle de l’amour. (shrink)

For Merleau-Ponty and Maldiney, the world of the pictorial image is “an almost crazy world” and a world of “confused sensations”. However, it is not only an illusory and chimeric world, cut off from the real world. Indeed, far from distancing us from the real world, this craziness and this confusion bring us back to it. The objective of this essay is therefore to question the relationship between pictorial art and the real (not fictional or imaginary) world. Certainly, the pictorial (...) work of art makes us return “to the things themselves”, because it establishes a conversion of the gaze and a metamorphosis of the visible. But one can ask if this conversionof the gaze does not reverse the movement of phenomenological “reduction” as described by Edmund Husserl, since it plunges us into the very heart of the world and does not imply any abstention or abstraction. For Maldiney as for Merleau-Ponty, painting reveals our original being-in-the-world, so that it will be necessary to elucidate what it means exactly. Moreover, we will investigate the role of style and rhythm as well as the role of color and the line in order to describe more precisely the connection between the world and the work of art, between continuity and discontinuity. Finally, we will propose another meaning of the word “image”in order to highlight the ethical function of the image thus understood. (shrink)