Through a detailed re-reading of Saussure's work in the light of contemporary developments in the human, life and physical sciences, Paul Thibault provides us with the means to redefine and refocus our theories of social meaning-making. Saussure's theory of language is generally considered to be a formal theory of abstract sign-types and sign-systems, separate from our individual and social practices of making meaning. In this challenging book, Thibault presents a different view of Saussure. Paying close attention to the (...) original texts, including the Cours de Linguistic Generale, he demonstrates that Saussure was centrally concerned with trying to formulate a theory of how meanings are made. In addition to demonstrating the continuing viability of Saussure's thinking through a range of examples, Re-reading Saussure makes an important intervention in contemporary linguistic and semiotic debate. (shrink)

Although researchers studying human speech recognition (HSR) and automatic speech recognition (ASR) share a common interest in how information processing systems (human or machine) recognize spoken language, there is little communication between the two disciplines. We suggest that this lack of communication follows largely from the fact that research in these related fields has focused on the mechanics of how speech can be recognized. In Marr's (1982) terms, emphasis has been on the algorithmic and implementational levels rather than on the (...) computational level. In this article, we provide a computational-level analysis of the task of speech recognition, which reveals the close parallels between research concerned with HSR and ASR. We illustrate this relation by presenting a new computational model of human spoken-word recognition, built using techniques from the field of ASR that, in contrast to current existing models of HSR, recognizes words from real speech input. (shrink)

The aim of the article is to introduce an approach to play based on semiotics of culture and, in particular, grounded in the works and ideas of Juri Lotman. On the one hand, it provides an overview of Lotman’s works dedicated to play and games, starting from his article on art among other modelling systems, in which the phenomenon of play is treated deeply, and mentioning Lotman’s articles dedicated to various forms of play forms, such as involving dolls and playing (...) cards. On the other hand, it applies a few Lotmanian theories and ideas to playfulness in order to shed some light on this highly debated, as well as intriguing, anthropic activity. Thus, the paper approaches some of the core questions for a play theory, such as the definition of play, the cultural role of toys and playthings, the importance of unpredictability, the position held by playfulness in the semiosphere and, finally, the differences and commonalities between play and art. Lotman’s theories and works, often integrated by other existing semiotic or ludologic perspectives offer an extremely insightful and fresh take on play and illustrate the great heuristic potential of semiotics of culture. (shrink)

There is growing interest for implementing tools to monitor cognitive performance in naturalistic work and everyday life settings. The emerging field of research, known as neuroergonomics, promotes the use of wearable and portable brain monitoring sensors such as functional near infrared spectroscopy (fNIRS) to investigate cortical activity in a variety of human tasks out of the laboratory. The objective of this study was to implement an on-line passive fNIRS-based brain computer interface to discriminate two levels of working memory load during (...) highly ecological aircraft piloting tasks. Twenty eight recruited pilots were equally split into two groups (flight simulator vs. real aircraft). In both cases, identical approaches and experimental stimuli were used (serial memorization task, consisting in repeating series of pre-recorded air traffic control instructions, easy vs. hard). The results show pilots in the real flight condition committed more errors and had higher anterior prefrontal cortex activation than pilots in the simulator, when completing cognitively demanding tasks. Nevertheless, evaluation of single trial working memory load classification showed high accuracy (>76%) across both experimental conditions. The contributions here are two-fold. First, we demonstrate the feasibility of passively monitoring cognitive load in a realistic and complex situation (live piloting of an aircraft). In addition, the differences in performance and brain activity between the two experimental conditions underscore the need for ecologically-valid investigations. (shrink)

Suivant le fil directeur du temps, cet ouvrage met au jour la manière dont l'admiration est devenue un problème philosophique central à l'âge classique et examine les différentes conceptions dont elle fait l'objet chez les principaux penseurs de la seconde moitié du XVIIe siècle.

Gottfried Wilhelm Leibniz (1646-1716), esprit universel et promoteur des sciences, est à la fois philosophe, mathématicien et diplomate. Passionné par le langage et le monde, il cherche en encyclopédiste à rendre compte de toutes les inventions et de tous les savoirs. Lors de son séjour à Paris - quatre années pendant lesquelles il rencontre Huygens et étudie Pascal -, il conçoit, en 1675, un projet original de création d'académies, plusieurs spectacles de divertissement. Imaginant des mises en scène ou cherchant à (...) régler la direction des casinos, le philosophe raisonne toujours en stratège. Pour lui, tout dans le monde est combinatoire. D'où son amour pour les jeux, qui associent signes et réseaux. Ainsi se dévoile une Europe savante et inventive qui anticipe notre monde relationnel et numérique. (shrink)

Les réseaux et systèmes d’information jouent un rôle essentiel dans la société. Un ensemble de dispositions visent à assurer leur sécurité a été adopté. L’objectif est de prévenir les cyber-risques. Pour cela, les opérateurs sont tenus de mettre en place des mesures techniques et organisationnelles adaptées aux risques posés par les réseaux et systèmes d’information, les produits, services et processus numériques. À partir de l’ensemble de ces dispositions, il est possible de découvrir un devoir général de sécurité numérique.

Computational modelling has proven to be a valuable approach in developing theories of spoken-word processing. In this paper, we focus on a particular class of theories in which it is assumed that the spoken-word recognition process consists of two consecutive stages, with an `abstract' discrete symbolic representation at the interface between the stages. In evaluating computational models, it is important to bring in independent arguments for the cognitive plausibility of the algorithms that are selected to compute the processes in a (...) theory. This paper discusses the relation between behavioural studies, theories, and computational models of spoken-word recognition. We explain how computational models can be assessed in terms of the goodness of fit with the behavioural data and the cognitive plausibility of the algorithms. An in-depth analysis of several models provides insights into how computational modelling has led to improved theories and to a better understanding of the human spoken-word recognition process. (shrink)

L’un des gestes distinctifs de Cornelius Castoriadis fut de rapporter l’histoire de la philosophie à un concept de création « ex nihilo », qu’il définissait comme surgissement immotivé et irréductible de nouvelles déterminations formelles de l’être dans le temps. Cet article s’intéresse à la signification d’un tel parti pris pour l’instruction de la question cosmologique, entendue comme enquête sur les principes et le devenir de la totalité de l’être. L’auteur montre dans un premier temps comment Castoriadis a justifié sa position (...) ontologique à partir d’une réflexion sur l’histoire de la science. Il la rapporte ensuite à deux voies possibles afin de résoudre la question cosmologique : la dialectique et la complexité. Il est soutenu que l’intention de Castoriadis ne fut pas de produire une cosmologie comme telle, mais de rapporter la pratique scientifique à la création et d’expliciter les conditions de possibilité de son intellection. (shrink)

Although researchers studying human speech recognition (HSR) and automatic speech recognition (ASR) share a common interest in how information processing systems (human or machine) recognize spoken language, there is little communication between the two disciplines. We suggest that this lack of communication follows largely from the fact that research in these related fields has focused on the mechanics of how speech can be recognized. In Marr's (1982) terms, emphasis has been on the algorithmic and implementational levels rather than on the (...) computational level. In this article, we provide a computational‐level analysis of the task of speech recognition, which reveals the close parallels between research concerned with HSR and ASR. We illustrate this relation by presenting a new computational model of human spoken‐word recognition, built using techniques from the field of ASR that, in contrast to current existing models of HSR, recognizes words from real speech input. (shrink)

Cet article examine la question de l’attention dans son rapport à l’admiration, dont le traitement fait apparaître de profondes divergences entre les Passions de l’âme et l’ Éthique. Dans Les Passions de l’âme, Descartes propose une genèse passionnelle de l’attention, dont la destination gnoséologique est assurée par un acte de la volonté qui transcende les perceptions de l’âme. À l’inverse, dans l’ Éthique, la connaissance ne dépend pas de l’exercice d’une faculté autonome, elle est immanente à l’ordre des idées, ce (...) à quoi l’admiration fait irréductiblement obstacle. La critique spinoziste de l’admiration s’accompagne alors d’une refonte du statut de l’attention et repose sur la critique de la partition cartésienne des facultés de l’âme. Nous montrerons néanmoins que l’attention a une fonction positive sous la forme d’une présence à soi de l’esprit qui veille à l’enchaînement en lui des idées vraies. (shrink)

The current study investigates classroom interactivity in L2 tertiary literature classrooms in Hong Kong and Taiwan when ESL/efl students engage with and interpret literary texts in classroom talk as a pedagogic process of text recontextualization. It proposes a more ecological-based approach to language and languaging dynamics that is complementary to current social semiotic approaches to multimodality. It also aims to open up a more embodied analysis of the meaning-making process in tertiary literature classrooms. The multimodal investigation of real-time classroom interactivity (...) based on a multi-scalar approach showcases an embodied coordination of vocalization and gesticulation as integral aspects of the dynamic whole-body sense-making activity that arises in the pedagogic process of text recontextualization. The dynamics vary from students’ solo speech in individual presentation to teacher–student interactions in group discussion and to student–student interactions in role-play. The distributed language view of first-order languaging dynamics demonstrates the embodied and distributed dimensions of the real-time classroom interactivity that couples pedagogic subjects to the affordances of their pedagogic environment. It also provides insights into the impact of pedagogic activities on the multi-scalar dynamics of the meaning-making process with reference to embodied speech–gesture coordination. The paper demonstrates the value of applying an ecologically embodied perspective to multimodal studies in classroom research and stimulates a re-thinking of some of the important aspects of classroom interactivity that have received little attention thus far. (shrink)

Language plays a central role in human life. However, the term 'language' as defined in the language sciences of the 20th century and the traditions these have drawn on, have arguably, limited our thinking about what language is and does. The two inter-linked volumes of Thibault's study articulate crucially important aspects of an emerging new perspective shift on language - the Distributed Language view - that is now receiving more and more attention internationally. Rejecting the classical view that the (...) fundamental architecture of language can be localized as a number of inter-related levels of formal linguistic organization that function as the coded inputs and outputs to each other, the distributed language view argues that languaging behaviour is a bio-cultural organisation of process that is embodied, multimodal, and integrated across multiple space-time scales. Thibault argues that we need to think of human languaging as the distinctively human mode of our becoming and being selves in the extended human ecology and the kinds of experiencing that this makes possible. Paradoxically, this also means thinking about language in non-linguistic ways that break the grip of the conventional meta-languages for thinking about human languaging. Thibault's book grounds languaging in process theory: languaging and the forms of experience it actualizes is always an event, not a thing that we 'use'. In taking a distinctively interdisciplinary approach, the book relates dialogical theories of human sense-making to the distributed view of human cognition, to recent thinking about distributed language, to ecological psychology, and to languaging as inter-individual affective dynamics grounded in the subjective lives of selves. In taking this approach, the book considers the coordination of selves in social encounters, the emergent forms of self-reflexivity that characterise these encounters, and the implications for how we think of and live our human sociality, not as something that is mediated by over-arching codes and systems, but as emerging from the endogenous subjectivities of selves when they seek to coordinate with other selves and with the situations, artefacts, social institutions, and technologies that populate the extended human ecology. The two volumes aim to bring our understanding of human languaging closer to human embodiment, experience, and feeling while also showing how languaging enables humans to transcend local circumstances and thus to dialogue with cultural tradition. Volume 1 focuses on the shorter timescales of bodily dynamics in languaging activity. Volume II integrates the shorter timescales of body dynamics to the longer cultural-historical timescales of the linguistic and cultural norms and patterns to which bodily dynamics are integrated. (shrink)

After spinal cord injury (SCI), motoneuron death occurs at and around the level of injury which induces changes in function and organization throughout the nervous system, including cortical changes. Muscle affected by SCI may consist of both innervated (accessible to voluntary drive) and denervated (inaccessible to voluntary drive) muscle fibers. Voluntary activation measured with transcranial magnetic stimulation (VATMS) can quantify voluntary cortical/subcortical drive to muscle but is limited by technical challenges including suboptimal stimulation of target muscle relative to its antagonist. (...) The motor evoked potential (MEP) in the biceps compared to the triceps (i.e., MEP ratio) may be a key parameter in the measurement of biceps VATMS after SCI. We used paired pulse TMS, which can inhibit or facilitate MEPs, to determine whether the MEP ratio affects VATMS in individuals with tetraplegia. Ten individuals with tetraplegia following cervical SCI and ten non-impaired individuals completed single pulse and paired pulse VATMS protocols. Paired pulse stimulation was delivered at 1.5, 10, and 30 ms inter-stimulus intervals (ISI). In both the SCI and non-impaired groups, the main effect of the stimulation pulse (paired pulse compared to single pulse) on VATMS was not significant in the linear mixed-effects models. In both groups for the stimulation parameters we tested, the MEP ratio was not modulated across all effort levels and did not affect VATMS. Linearity of the voluntary moment and superimposed twitch moment relation was lower in SCI participants compared to non-impaired. Poor linearity in the SCI group limits interpretation of VATMS. Future work is needed to address methodological issues that limit clinical application of VATMS. (shrink)

In the present research, we validated a new scale developed from self-determination theory (SDT) to assess the functional meaning of cash rewards offered in the workplace. According to SDT, rewards can take on different meanings based on the way they are perceived by individuals. In a series of three studies in different socioeconomic contexts, we replicated the two-factorial structure of the scale measuring respectively workplace cash rewards’ informative and controlling meanings. In Study 1, we validated the English version of the (...) scale by exploring and then confirming its two-factor structure with two English-speaking employee samples. We further replicated its two-factor structure in a French-speaking employee sample of employees in Study 2 and in a Greek-speaking employee sample in Study 3, allowing us to validate its French and Greek version. Results from our three studies show how distinct meanings attributed to cash rewards, i.e., informative or controlling, relate differently to autonomous and controlled forms of motivation based on SDT. These findings suggest that workplace cash rewards differently influence employees’ motivation depending on whether they are perceived as informative or controlling, thus providing empirical evidence for the theoretical and practical implications of SDT’s concept of functional meaning of cash rewards. Our research contributes to the assessment and understanding of employees’ experience of workplace cash rewards and provides empirical evidence that the concept of the functional meaning of cash rewards is a distinct concept from other money-related concepts such as subjective pay satisfaction, performance-contingent rewards, and financially contingent self-worth. (shrink)

Focusing on the self as a normative construct, I consider how and why the self, not the group, is ontologically fundamental. Selves live in communities or societies of selves. The intrinsic normativity of the self and the actions the self performs constitute the grounds on which people fashion coherent narratives about themselves and seek to display themselves to others in ways that conform to their narratives. People bond with, care for, and invest in each other as distinctive selves that they (...) can coordinate with in a vast range of different activities and practices together with the conflicts and tensions between these activities and practices that define their political nature. The persistence or otherwise of the activities and projects that selves participate in is dependent on other activities and practices that lend their support and cooperation (or otherwise) to them. Activities and projects are therefore interdependent in ways that are more or less democratic. Selves-in-activities actively maintain, contest, and change these activities and projects. Political activity is thus seen as the processes of maintaining, contesting, and changing both selves-in-activities and the relations between activities. (shrink)

Au cœur de la prise en charge orthophonique, l’oralité est constituée des phénomènes psychologiques, biologiques et fonctionnels assurant la mise en œuvre du comportement oral de l’enfant. Cet article, écrit par une orthophoniste psychologue, expose en quoi l’oralité verbale se construit pour le jeune enfant conjointement à son oralité alimentaire. L’éducation gnoso-praxique orale précoce concerne l’oralité alimentaire et verbale en partenariat avec les parents. Les modalités d’interaction précoce, la valeur donnée aux comportements par l’entourage et les modes de réponse qui (...) en découlent ont un rôle essentiel et une dimension préventive face aux troubles de l’oralité. (shrink)

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)

Jean-Marc Ferry stands opposed to the philosophy of Cornelius Castoriadis, claiming that it relies upon an arbitrary ontological decision. According to Ferry, Castoriadis’ philosophy does not respect the Kantian critique of reason. In this contribution, I reply to this objection. I comment on his specific methodological operation: elucidation. I show that this method does not go beyond Kantian finitude, and that it allows him to justify his ontological concepts. In the last part of this article, I interpret his method as (...) a ‘grounded constructivism’ and I explain how it contributes to those philosophical theories. (shrink)

(2013). Open Access Digital Data Sharing: Principles, Policies and Practices☆. Social Epistemology: Vol. 27, No. 1, pp. 47-67. doi: 10.1080/02691728.2012.760663.

This article argues that the most widely disseminated reading of Lafitte’s writings, which aligns his proposals for ‘mechanology’ with cybernetics, overlooks the broader ethical and social project to which he hoped his ideas would contribute. It is shown that the purpose of mechanology articulated by Lafitte was the development of an ethical relation to machines, a theme he developed in his later publications. It is argued that Lafitte’s position resonates with positions taken by contemporary works focused on the renewal of (...) a critical approach to the philosophy of technology, particularly those that seek to transform the relationship between humans and the natural world. (shrink)

In this paper, we present a critical reflection on the concept of social capital. We argue that there is no such idea of an umbrella concept of social capital. Instead, two overarching conceptualizations of social capital exist, namely individual social capital and collective social capital. As these conceptualizations of social capital are completely different, we emphasize that studies using social capital as a theoretical lens should clarify the concept as well as be consistent in the interpretation of the concept, from (...) its definition to its methodological operationalization. In this article, we first map the two different conceptualizations of social capital. Next, these conceptualizations are illustrated with well-known teacher research studies, followed by examples of studies in which individual and collective social capital are mixed. Finally, we discuss the consequences of the use and the mix of these different conceptualizations in terms of measurement methods. Additionally, implications for teacher education are presented. (shrink)

The concepts underlying our present theoretical understanding of the radiative two-condensed-body problem in general relativity and in bimetric gravitation theory are critically reviewed. The relevance of the 1935 Einstein-Rosen “bridge” article is emphasized. The possibility (first suggested by N. Rosen, for the linearized approximation) of extending to gravity the Wheeler-Feynman time-symmetric approach is questioned.

Dans les théories esthétiques de la fin du XIXe siècle, l’exemple de l’architecture appuie une inversion progressive des hiérarchies entre le beau et l’utile, confortée par la montée des approches sociologiques et anthropologiques de l’art. Du côté des architectes, les débats sur l’origine et l’évolution des styles, depuis leurs manifestations primitives dans les industries d’art vers les formes plus évoluées de l’art monumental, infléchissent la compréhension des relations entre détermination matérielle et expression artistique.