Human mental workload is arguably the most invoked multidimensional construct in Human Factors and Ergonomics, getting momentum also in Neuroscience and Neuroergonomics. Uncertainties exist in its characterization, motivating the design and development of computational models, thus recently and actively receiving support from the discipline of Computer Science. However, its role in human performance prediction is assured. This work is aimed at providing a synthesis of the current state of the art in human mental workload assessment through considerations, definitions, measurement techniques (...) as well as applications, Findings suggest that, despite an increasing number of associated research works, a single, reliable and generally applicable framework for mental workload research does not yet appear fully established. One reason for this gap is the existence of a wide swath of operational definitions, built upon different theoretical assumptions which are rarely examined collectively. A second reason is that the three main classes of measures, which are self-report, task performance, and physiological indices, have been used in isolation or in pairs, but more rarely in conjunction all together. Multiple definitions complement each another and we propose a novel inclusive definition of mental workload to support the next generation of empirical-based research. Similarly, by comprehensively employing physiological, task-performance, and self-report measures, more robust assessments of mental workload can be achieved. (shrink)

Il brano del "Fedro" (269el-270c5) in cui è menzionato Ippocrate e il suo metodo è uno dei più controversi dell'opera platonica. Alcuni studiosi si sono serviti degli scolî antichi al dialogo, tramandati sotto il nome del neoplatonico Ermia (V sec. d. C.), per sostenere che il metodo in questione non implica un'indagine preliminare dell'universo. È tuttavia utile (oltreché finora intentato) ripercorrere quanto l'esegeta neoplatonico dice a proposito dell'intero brano in questione per constatare come egli, al contrario, ne fornisca un'interpretazione cosmologica, (...) sulla base della significazione tecnica di ἡ ὅλη ψυχή come "anima dell'universo". In ogni caso l'esegesi di Ermia risulta essere non una semplice parafrasi grammaticale del testo platonico, ma anche una sua riformulazione filosofica nei termini della dottrina neoplatonica, la quale è estremamente complessa anche nel caso dell'anima umana. (shrink)

Alexander of Aphrodisias, Aristotle’s commentator par excellence, rarely engages with Plato. In the present paper, however, we see him at work as an exegete of a passage in the _Phaedrus_ (245c5-9), in which Plato argues for the immortality of the soul based on its self-motion. In this paper, I focus on two ways in which Alexander deals with the passage. In his commentary on Aristotle’s _Prior Analytics_ (CAG II 1), Alexander employs the same approach to the _Phaedrus_ that he uses (...) with Aristotle’s treatises: he puts an informal argument expressed in ordinary language into the more formal shape of a syllogism. This does not mean that Alexander gives his approval to Plato’s theory. In fact, in his commentary on Aristotle’s _Topics_ (CAG II 2), Alexander introduces a polemical discussion of the same Platonic argument. Commenting on Aristotle’s denial that the soul is a self-moving substance (_Top_. IV 1.120b21-29), Alexander spells out the implicit reference to the _Phaedrus_ and criticizes Plato’s argument for not taking into account the difference between an accidental property of the soul and the essential characteristics by which it is defined. Plato’s theory of self-motion is partly accepted by Alexander and partly criticized. This paves the way for how the theory will be applied in the Aristotelian tradition, not to the soul, as in Plato, but to the ensouled body, either of the living being or of the heavens. (shrink)

Asclépius est un commentateur aristotélicien du VI e siècle après J.-C., qui – élève d’Ammonius – étudie à l’école néoplatonicienne d’Alexandrie en Égypte. Il réalise l’exégèse de divers passages de la Métaphysique dans lesquels Aristote attribue à Platon la doctrine de l’existence de substances mathématiques séparées (avec une position intermédiaire entre les substances intelligibles et les sensibles) et, en même temps, la critique fortement. Asclépius a une attitude de conciliation entre les perspectives platonicienne et aristotélicienne. D’une part, il défend la (...) doctrine de l’existence de substances mathématiques séparées du monde sensible et supérieures à lui, et ce faisant il s’aligne sur la défense de la doctrine platonicienne déjà opérée par les néoplatoniciens Syrianus et Proclus. Cependant, d’autre part, il adopte aussi la position aristotélicienne et celle d’Alexandre d’Aphrodise, si bien qu’il existe aussi des entités mathématiques qui ne sont pas des substances, mais des caractéristiques mathématiques formelles immanentes au sensible. Enfin, les entités mathématiques sont aussi de simples concepts mentaux obtenus par abstraction du sensible. En parlant d’entités mathématiques non substantielles, Asclépius s’aligne sur Aristote et son commentateur peripatéticien Alexandre. Asclépius, grâce à une vision hiérarchisée de la réalité, peut admettre trois types d’entités mathématiques, de sorte que chaque type inférieur est une copie atténuée de celui qui lui est supérieur. (shrink)

La cognition humaine paraît étroitement liée à la structure de l'espace et du temps relativement auxquels le corps, le geste, l'intelligibilité semblent devoir se déterminer. Pourtant, ce qui, après les approches physico-mathématiques de Galilée et de Newton, fut caractérisé par Kant comme formes de l'intuition sensible, n'a cessé au cours des siècles qui suivirent de se trouver remis en cause dans leur saisie première par les développements théoriques. En mathématiques d'abord, avec les géométries non-euclidiennes, en physique ensuite, où relativité générale (...) puis théories quantiques et critiques ont dû remanier profondément l'objectivité de ces concepts pour en faire des catégories, certes toujours aussi essentielles, mais de plus en plus contre-intuitives, et maintenant en biologie où la temporalité, notamment, et la causalité se révèlent largement différentes de celles de la physique. C'est ce que nous tentons de présenter et de discuter dans ce texte en vue d'en dégager la pertinence pour la cognition elle-même. (shrink)

È nel χρόνος, o epoche storiche, che il tempo si differenzia dalla contingenza che permette di individuare l’atto immediato e presente in una determinata circostanza, e d’altronde entrambi, cioè χρόνος e καιρός, sono descrivibili quali molteplici e plurali all’interno della possibilità eterna della tradizione e della trasformazione, nonché rinascita, di un concetto in semantiche sempre ulteriormente differenziabili. Il processo seguito per il raggiungimento e la specificazione del concetto tempo, quale caratterizzante il concetto stesso di universale, è stato quello dell’induzione, che (...) ha consentito di riflettere su Dio, cioè Cristo consegnatoci dalla storia e dal tempo. (shrink)

Du point de vue de la logique cognitive, il n’est pas si facile qu’on le croit de récuser la rationalité des théories du complot. Les dénonciateurs du conspirationnisme partagent souvent une même conception simpliste de la vérité avec ceux auxquels ils croient s’opposer. Cet article suggère que c’est plutôt du côté d’une bifurcation écologique radicale qu’on pourra trouver une alternative réelle au tourniquet dans lequel sont pris ensemble conspirationnistes et anti-conspirationnistes.

Zalamea’s book is as original as it is belated. It is indeed surprising, if we give it a moment’s thought, just how greatly behind schedule philosophical reflection on contemporary mathematics lags, especially considering the momentous changes that took place in the second half of the twentieth century. Zalamea compares this situation with that of the philosophy of physics: he mentions D’Espagnat’s work on quantum mechanics, but we could add several others who, in the last few decades, have elaborated an extremely (...) timely philosophy of contemporary physics (see for example Bitbol 2000; Bitbol et al. 2009). As was the case in biology, philosophy – since Kant’s crucial observations in the Critique of Judgment, at least – has often “run ahead” of life sciences, exploring and opening up a space for reflections that are not derived from or integrated with its contemporary scientific practice. Some of these reflections are still very much auspicious today. And indeed, some philosophers today are saying something truly new about biology... (shrink)

In his commentary on Plato’sCratylus, Proclus interprets the dialogue not as a mere work on logic or linguistics, but as having a full psychological and theological import.Late ancient Platonists had already proposed a similar reading for another Platonic dialogue,i.e.theParmenides. In that case too they rejected the logical interpretation, and aimed to find in the text the description of the hierarchy of reality, particularly of the highest beings. As a result, theParmenideswas seen as the accomplished expression of Plato’s theology.Proclus too draws (...) a comparison between theCratylusand theParmenidesin order to stress their theological significance. He also contrasts Plato’s dialectic with Aristotle’s dialectic. Proclus’ interpretation of dialectic is best understood if it is compared to the doctrines of his master Syrianus and of one of his co-disciples,i.e.Hermeias, at the Platonic school of Athens in the 5th centuryad.Contrary to what is sometimes assumed, in this milieu Platonists were not always committed to the task of reconciling the philosophies of Plato and Aristotle. As it happens, they could strongly disagree with and even attack Aristotle, and side with Plato. In particular, they greatly valued Plato’s dialectic, which they viewed as the correct form of reasoning and at the same time as a theory of the utmost theological significance. On the other hand, Aristotle’s dialectic was considered as “bare” logic,i.e.as a mere set of logical rules and arguments with no specific contents.On the basis of a problematicCratylus’passage Proclus defends a theory of truth according to which not only propositions, but also names can be true or false. This allows him to view names as substitutes of propositions. This is particularly the case in the application of the four dialectical methods of definition, division, demonstration and analysis. Proclus’ approach arguably provides a basis—to pagan as well as Christian tradition—for the study of divine names as a part of theology, for the name of a god is held to reveal its attributes. (shrink)

Les preuves de l’immortalité de l’âme, qui sont un des thèmes cen­traux de l’enseignement de Platon, ont fait l’objet d’une réflexion d’ordre logique et formel sur la manière dont elles sont (ou devraient être) exprimées. En particulier l’argument en faveur de l’immortalité de l’âme contenu dans le Phèdre (245c5-246a2), fondé sur la notion d’âme automotrice et principe de mouve­ment, a été assidûment analysé, pour ce qui est de sa formulation, par plusieurs représentants de la tradition platonicienne (Alcinoos, Hermias d’Alexandrie), ainsi (...) qu’à l’intérieur de la tradition péripatéticienne (Alexandre d’Aphrodise). Par conséquent, il représente, à l’avis de l’auteur, un point privilégié d’observation de la façon dont les platoniciens s’approprient la logique aristotélicienne et récri­vent, à partir de l’époque impériale, certains arguments platoniciens. En outre, il apparaît qu’Alexandre d’Aphrodise, bien qu’étant de tradition péripatéticienne, a grandement contribué à la reformulation des arguments de Platon selon les canons de la logique aristotélicienne par les platoniciens contemporains et posté­rieurs. Il semble aussi qu’Hermias, dans ses scholies sur le Phèdre, réagit juste­ment à certaines affirmations d’Alexandre. Dans cet article, on montre quels sont les points de contact ainsi que les différences dans la réécriture analytico-syllogistique de l’argument du Phèdre en faveur de l’immortalité de l’âme par Alcinoos et Hermias, sans négliger l’apport d’Alexandre. (shrink)

Since the discovery of incommensurability in ancient Greece, arithmeticism and geometricism constantly switched roles. After ninetieth century arithmeticism Frege eventually returned to the view that mathematics is really entirely geometry. Yet Poincaré, Brouwer, Weyl and Bernays are mathematicians opposed to the explication of the continuum purely in terms of the discrete. At the beginning of the twenty-first century ‘continuum theorists’ in France (Longo, Thom and others) believe that the continuum precedes the discrete. In addition the last 50 years witnessed (...) the revival of infinitesimals (Laugwitz and Robinson—non-standard analysis) and—based upon category theory—the rise of smooth infinitesimal analysis and differential geometry. The spatial whole-parts relation is irreducible (Russell) and correlated with the spatial order of simultaneity. The human imaginative capacities are connected to the characterization of points and lines (Euclid) and to the views of Aristotle (the irreducibility of the continuity of a line to its points), which remained in force until the ninetieth century. Although Bolzano once more launched an attempt to arithmetize continuity, it appears as if Weierstrass, Cantor and Dedekind finally succeeded in bringing this ideal to its completion. Their views are assessed by analyzing the contradiction present in Grünbaum’s attempt to explain the continuum as an aggregate of unextended elements (degenerate intervals). Alternatively a line-stretch is characterized as a one-dimensional spatial subject, given at once in its totality (as a whole) and delimited by two points—but it is neither a breadthless length nor the (shortest) distance between two points. The overall aim of this analysis is to account for the uniqueness of discreteness and continuity by highlighting their mutual interconnections exemplified in the nature of a line as a one-dimensional spatial subject, while acknowledging that points are merely spatial objects which are always dependent upon an extended spatial subject. Instead of attempting to reduce continuity to discreteness or discreteness to continuity, a third alternative is explored: accept the irreducibility of number and space and then proceed by analyzing their unbreakable coherence. The argument may be seen as exploring some implications of the view of John Bell, namely that the “continuous is an autonomous notion, not explicable in terms of the discrete.” Bell points out that initially Brouwer, in his dissertation of 1907, “regards continuity and discreteness as complementary notions, neither of which is reducible to each other.”. (shrink)

Os assassinos do sol é a transcrição de aulas ministradas em vários cursos ao longo de alguns anos de magistério na Escola de Comunicação da Universidade Federal do Rio de Janeiro..."--Back flap of volume 4.

Este artigo busca elaborar em sua parte inicial uma visão panorâmica sobre a História Cultural, esclarecendo e discutindo alguns aspectos relacionados a esta modalidade da História. Na sua segunda parte, a História das Idéias é apresentada em suas relações dialógicas com a História Cultural e outras modalidades historiográficas. No decorrer do texto, são discutidos diversos dos conceitos envolvidos na perspectiva da História Cultural e da História das Idéias, a partir de uma produção historiográfica diversificada que se desenvolveu ao longo (...) do século XX. O artigo remete a obra recentemente publicada pelo autor deste texto, cujo principal objetivo é o de elaborar uma visão panorâmica das diversas modalidades da História nos dias de hoje. (shrink)

Biological evolution is a complex blend of ever changing structural stability, variability and emergence of new phe- notypes, niches, ecosystems. We wish to argue that the evo- lution of life marks the end of a physics world view of law entailed dynamics. Our considerations depend upon dis- cussing the variability of the very ”contexts of life”: the in- teractions between organisms, biological niches and ecosys- tems. These are ever changing, intrinsically indeterminate and even unprestatable: we do not know ahead of (...) time the ”niches” which constitute the boundary conditions on selec- tion. More generally, by the mathematical unprestatability of the ”phase space”, no laws of mo- tion can be formulated for evolution. We call this radical emergence, from life to life. The purpose of this paper is the integration of variation and diversity in a sound concep- tual frame and situate unpredictability at a novel theoretical level, that of the very phase space. Our argument will be carried on in close comparisons with physics and the mathematical constructions of phase spaces in that discipline. The role of symmetries as invariant preserving transformations will allow us to under- stand the nature of physical phase spaces and to stress the differences required for a sound biological theoretizing. In this frame, we discuss the novel notion of ”enablement”. Life lives in a web of enablement and radical emergence. This will restrict causal analyses to differential cases. Mutations or other causal differ- ences will allow us to stress that ”non conservation princi- ples” are at the core of evolution, in contrast to physical dynamics, largely based on conservation principles as sym- metries. Critical transitions, the main locus of symmetry changes in physics, will be discussed, and lead to ”extended criticality” as a conceptual frame for a better understanding of the living state of matter. (shrink)

De l'antiquité à la Renaissance, la notion de certitude est au coeur de la structuration de la pensée. Cet ouvrage réunit les contributions de spécialistes, qui explorent tous la littérature latine en mettant cette notion à l'épreuve de différentes disciplines et époques.

Digital technology has prompted philosophers to rethink some of the fundamental categories we use to make sense of the world and ourselves. Particularly, the concept of ‘identity’ and its reconfiguration in the digital age has sparked much debate in this regard. While many studies have addressed the impact of the digital on personal and social identities, the concept of ‘collective identity’ has been remarkably absent in such inquiries. In this article, I take the context of social movements as an entry (...) point to discuss the reconfiguration of collective identity in social media environments. I do so by introducing a narrative approach to collective identity. I argue that Twitter’s affordances invite new ways of constructing collective identities and imply a shifting relationship between the individual and the collective. (shrink)

The human attempts to access, measure and organize physical phenomena have led to a manifold construction of mathematical and physical spaces. We will survey the evolution of geometries from Euclid to the Algebraic Geometry of the 20th century. The role of Persian/Arabic Algebra in this transition and its Western symbolic development is emphasized. In this relation, we will also discuss changes in the ontological attitudes toward mathematics and its applications. Historically, the encounter of geometric and algebraic perspectives enriched the mathematical (...) practices and their foundations. Yet, the collapse of Euclidean certitudes, of over 2300 years, and the crisis in the mathematical analysis of the 19th century, led to the exclusion of “geometric judgments” from the foundations of Mathematics. After the success and the limits of the logico-formal analysis, it is necessary to broaden our foundational tools and re-examine the interactions with natural sciences. In particular, the way the geometric and algebraic approaches organize knowledge is analyzed as a cross-disciplinary and cross-cultural issue and will be examined in Mathematical Physics and Biology. We finally discuss how the current notions of mathematical (phase) “space” should be revisited for the purposes of life sciences. (shrink)

We experience our own body through both touch and vision. We further see that others’ bodies are similar to our own body, but we have no direct experience of touch on others’ bodies. Therefore, relations between vision and touch are important for the sense of self and for mental representation of one’s own body. For example, seeing the hand improves tactile acuity on the hand, compared to seeing a non-hand object. While several studies have demonstrated this visual enhancement of touch (...) effect, its relation to the ‘bodily self’, or mental representation of one’s own body remains unclear. We examined whether VET is an effect of seeing a hand, or of seeing my hand, using the rubber hand illusion. In this illusion, a prosthetic hand which is brushed synchronously—but not asynchronously—with one’s own hand is felt to actually be one’s hand. Thus, we manipulated whether or not participants felt like they were looking directly at their hand, while holding the actual stimulus they viewed constant. Tactile acuity was measured by having participants judge the orientation of square-wave gratings. Two characteristic effects of VET were observed: cross-modal enhancement from seeing the hand was inversely related to overall tactile acuity, and participants near sensory threshold showed significant improvement following synchronous stroking, compared to asynchronous stroking or no stroking at all. These results demonstrate a clear functional relation between the bodily self and basic tactile perception. (shrink)

This study described the relationships between academic class and student moral sensitivity and reasoning and between curriculum design components for ethics education and student moral sensitivity and reasoning. The data were collected from freshman (n = 506) and senior students (n = 440) in eight baccalaureate nursing programs in South Korea by survey; the survey consisted of the Korean Moral Sensitivity Questionnaire and the Korean Defining Issues Test. The results showed that moral sensitivity scores in patient-oriented care and conflict were (...) higher in senior students than in freshman students. Furthermore, more hours of ethics content were associated with higher principled thinking scores of senior students. Nursing education in South Korea may have an impact on developing student moral sensitivity. Planned ethics content in nursing curricula is necessary to improve moral sensitivity and moral reasoning of students. (shrink)

La traduction latine des Dialoghi della historia du philosophe néo-platonicien Francesco Patrizi da Cherso est publiée à Bâle en 1570. L’étude de la circulation de ce texte et des choix de traduction permet de mieux comprendre la réception des artes historicae italiennes dans le Nord de l’Europe et les fluctuations ou limites du latin face à la montée en puissance de l’italien vernaculaire comme langue philosophique.

La traduction latine des Dialoghi della historia du philosophe néo-platonicien Francesco Patrizi da Cherso est publiée à Bâle en 1570. L’étude de la circulation de ce texte et des choix de traduction permet de mieux comprendre la réception des artes historicae italiennes dans le Nord de l’Europe et les fluctuations ou limites du latin face à la montée en puissance de l’italien vernaculaire comme langue philosophique.

"By combining recent advances in the physical sciences with some of the novel ideas, techniques, and data of modern biology, this book attempts to achieve a new and different kind of evolutionary synthesis. I found it to be challenging, fascinating, infuriating, and provocative, but certainly not dull."--James H, Brown, University of New Mexico "This book is unquestionably mandatory reading not only for every living biologist but for generations of biologists to come."--Jack P. Hailman, Animal Behaviour , review of the first (...) edition "An important contribution to modern evolutionary thinking. It fortifies the place of Evolutionary Theory among the other well-established natural laws."--R.Gessink, TAXON. (shrink)

Manufacturing and industry practices are undergoing an unprecedented revolution as a consequence of the convergence of emerging technologies such as artificial intelligence, robotics, cloud computing, virtual and augmented reality, among others. This fourth industrial revolution is similarly changing the practices and capabilities of operators in their industrial environments. This paper introduces and explores the notion of the Operator 4.0 as well as how this novel way of conceptualizing the human operator necessarily implicates human values in the technologies that constitute it. (...) The design approach known as value sensitive design (VSD) is used to explore how these Operator 4.0 technologies can be designed for human values. Expert elicitation surveys were used to determine the values of industry stakeholders and examples of how the VSD methodology can be adopted by engineers in order to design for these values is illustrated. The results provide preliminary adoption strategies that industrial teams can take to Operator 4.0 technology for human values. (shrink)