This target article presents a critical survey of the scientific literature dealing with the speed/accuracy trade-offs in rapid-aimed movements. It highlights the numerous mathematical and theoretical interpretations that have been proposed in recent decades. Although the variety of points of view reflects the richness of the field and the high degree of interest that such basic phenomena attract in the understanding of human movements, it calls into question the ability of many models to explain the basic observations consistently reported in (...) the field. This target article summarizes the kinematic theory of rapid human movements, proposed recently by R. Plamondon (1993b; 1993c; 1995a; 1995b), and analyzes its predictions in the context of speed/accuracy trade-offs. Data from human movement literature are reanalyzed and reinterpreted in the context of the new theory. It is shown that the various aspects of speed/accuracy trade-offs can be taken into account by considering the asymptotic behavior of a large number of coupled linear systems, from which a delta-lognormal law can be derived to describe the velocity profile of an end-effector driven by a neuromuscular synergy. This law not only describes velocity profiles almost perfectly, it also predicts the kinematic properties of simple rapid movements and provides a consistent framework for the analysis of different types of speed/accuracy trade-offs using a quadratic (or power) law that emerges from the model. (shrink)

"One of the major works in the development of contemporary criticism and philosophy." -- J. Hillis Miller, Yale University Jacques Derrida's revolutionary theories about deconstruction, phenomenology, psychoanalysis, and structuralism, first voiced in the 1960s, forever changed the face of European and American criticism. The ideas in De la grammatologie sparked lively debates in intellectual circles that included students of literature, philosophy, and the humanities, inspiring these students to ask questions of their disciplines that had previously been considered improper. Thirty (...) years later, the immense influence of Derrida's work is still igniting controversy, thanks in part to Gayatri Spivak's translation, which captures the richness and complexity of the original. This corrected edition adds a new index of the critics and philosophers cited in the text and makes one of contemporary criticism's most indispensable works even more accessible and usable. (shrink)

To cover as much as possible the various questions raised by the commentators, I have divided my Response into three major sections. In section R1, I reply to the major comments and remarks dealing with the basic hypothesis upon which the kinematic theory is built (Plamondon 1993b; 1993c; 1995a; 1995b). I focus on linearity, determinism, kinematics, and the biological significance of the model parameters. I conclude this section by showing how, from a practical point of view, the delta-lognormal law (...) can be used to group similar data prior to proceeding with further statistical analysis. In section R2, I address the main comments and remarks dealing with the speed/accuracy tradeoffs. First, I focus on the origin of speed/accuracy tradeoffs and the effect of visual feedback. Then I clarify some terminology problems and mathematical misinterpretations prior to providing new support for the theory using the experiments and data referred to by some commentators. I devote section R3 to a generalization of the kinematic theory and to some potential applications. I first provide new explanations of some classical experiments; then I show how more complex movements can be analyzed using the delta-lognormal law. I focus on perturbed and oscillatory movements as well as on cursive script and signature analysis. I conclude this section and my Response by showing some possible applications to the study of movement learning in children as well as to the study of aging phenomena in movement control. I complete my Response by recalling some technical problems that still need further analysis. Throughout the text, I try to convince the reader that the kinematic theory provides a new window on old and new data in the field. (shrink)

Three periods in the development of Whitehead's thought are generally recognized : ()-: The period of the writing of Universal Algebra, ...

Spinoza, le spinozisme et les fondements de la sécularisation est un ouvrage dédié à la mémoire d’Emmanuel Levinas, dont l’auteur a été l’élève durant plusieurs années. Il vise, à travers une analyse d’ordre philosophique, historique, épistémologique et théologique, à mettre au jour les conditions d’émergence interrelatées du spinozisme et de la sécularisation. Pour ce faire, il souligne, entre autres, l’importance des polémiques anti-maimonidiennes, des débats sur les attributs divins, la substance, l’infini, du marranisme et de la Kabbale sur la formation (...) du spinozisme, ainsi que son rapport à la pensée contemporaine. Il mène une recherche interdisciplinaire devant permettre d’éclairer l’origine des difficultés théoriques que ce système philosophique présente. (shrink)

"In this densely imbricated volume Derrida pursues his devoted, relentless dismantling of the philosophical tradition, the tradition of Plato, Kant, Hegel, Nietzsche, Husserl, Heidegger--each dealt with in one or more of the essays. There are essays too on linguistics (Saussure, Benveniste, Austin) and on the nature of metaphor ("White Mythology"), the latter with important implications for literary theory. Derrida is fully in control of a dazzling stylistic register in this book--a source of true illumination for those prepared to follow his (...) arduous path. Bass is a superb translator and annotator. His notes on the multilingual allusions and puns are a great service."--Alexander Gelley, Library Journal. (shrink)

Background: Clinical tests for detecting central and peripheral shoulder fatigue are limited. The discrimination of these two types of fatigue is necessary to better adapt recovery intervention. The Kinematic Theory of Rapid Human Movements describes the neuromotor impulse response using lognormal functions and has many applications in pathology detection. The ideal motor control is modeled and a change in the neuromuscular system is reflected in parameters extracted according to this theory. Objective: The objective of this study was to assess whether (...) a shoulder neuromuscular fatigue could be detected through parameters describing the theory, if there is the possibility to discriminate central from peripheral fatigue, and which handwriting test gives the most relevant information on fatigue. Methods: Twenty healthy participants performed two sessions of fast stroke handwriting on a tablet, before and after a shoulder fatigue. The fatigue was in internal rotation for one session and in external rotation during the other session. The drawings consisted of simple strokes, triangles, horizontal and vertical oscillations. Parameters of these strokes were extracted according to the Sigma-Lognormal model of the Kinematic Theory. The evolution of each participant was analyzed through a U-Mann-Whitney test for individual comparisons. A Hotelling’s T² test and a U-Mann-Whitney test were also performed on all participants to assess the group evolution after fatigue. Moreover, a correlation among parameters was calculated through Spearman coefficients to assess intrinsic parameters properties of each handwriting test. Results: Central and peripheral parameters were statistically different before and after fatigue with a possibility to discriminate them. Participants had various responses to fatigue. However, when considering the group, parameters related to the motor program execution showed significant increase in the handwriting tests after shoulder fatigue. The test of simple strokes permits to know more specifically where the fatigue comes from, whereas the oscillations tests were the most sensitive to fatigue. Conclusion: The results of this study suggest that the Sigma-Lognormal model of the Kinematic Theory is an innovative approach for fatigue detection with discrimination between the central and peripheral systems. Overall, there is a possibility to implement the setting for clinics and sports personalized follow-up. (shrink)

AbeBooks.com: The Technological Society.

La question des rapports du spinozisme à l’axiologie a fait l’objet de nombreux débats. Certains commentateurs considèrent Spinoza comme étant profondément immoraliste, alors que pour d’autres, il maintient l'ensemble des valeurs humaines. Spinoza a cherché à dépasser l’utilitarisme propre au conatus de chacun, afin de fonder un altruisme rationnel. Il souligne que le bien auquel l’homme aspire lorsqu’il suit la vertu, il le désirera aussi pour tous les autres hommes. Cependant, les moyens mis en œuvre pour démontrer cette thèse semblent (...) problématiques. Cet article analyse la logique de la coopération interhumaine élaborée par Spinoza, ainsi que son idéal de l’homme libre, montrant, qu'en fait, il n'a pas réussi à surmonter la nature profondément égoïste du conatus. -/- The question of the relationship between Spinozism and axiology has been the subject of much debate. Some commentators consider Spinoza to be profoundly immoralist, while for others he upholds the set of human values. Spinoza sought to go beyond the utilitarianism proper to the conatus of each person, in order to establish a rational altruism. He emphasizes that the good to which man aspires when he follows virtue, he will also desire for all other men. However, the means used to demonstrate this thesis seem problematic. This article analyzes Spinoza's logic of interhuman cooperation, as well as his ideal of the free man, showing that, in fact, he failed to overcome the profoundly egoistic nature of conatus. -/- . (shrink)

The question of Spinozist determinism and necessitarianism have been extensively studied by commentators, while the relationship between the notions of divine will and free will still requires elaborate studies. Our article seeks to contribute to such research, by clarifying the analyses of these questions by authors that Spinoza has confronted: Maimonides, as well as other Jewish philosophers, and Leibniz who criticized Spinozist determinism. We will study the consequences of these analyses on two examples that Spinoza gave to refute free will, (...) namely the dream and the situation of Buridan's ass. -/- Résumé: La question du déterminisme spinoziste et du nécessitarisme a été largement étu-diée par les commentateurs, tandis que la relation entre les notions de volonté divine et de libre arbitre nécessite encore des études plus élaborées. Notre article cherche à contribuer à ces recherches, en clarifiant les analyses de ces questions par des auteurs auxquels Spinoza s’est confronté : Maïmonide, ainsi que d’autres philosophes juifs, et Leibniz qui a lui-même critiqué le déterminisme spinoziste. Nous étudierons les conséquences de ces analyses sur deux exemples que Spinoza a donnés pour réfuter le libre arbitre, à savoir le rêve et la situa-tion de l’âne de Buridan. (shrink)

The aim of this article is to bring to light some of the factors that allowed the emergence of secularization, and to understand to what extent and in what ways these factors contributed to the formation of the main lines of Spinozism. I will first examine the issues of secularization, emphasizing the importance of the transformations in the status of the Hebrew language during the Renaissance. I will then analyze the role that the Tractatus theologico-politicus may have had in European (...) culture. Finally, I will clarify Spinoza’s relationship to deism and atheism, specifying the nature of the controversies related to his religious attitude. (shrink)

In the 1960s a radical concept emerged from the great French thinker Jacques Derrida. Read the book that changed the way we think; read "Writing and Difference," the classic introduction.

Speech and phenomena.--Form and meaning.--Differance.

" "Positions brings together three interviews with Derrida, outlining his central concerns and ideas.

Jacques Derrida is probably the most famous European philosopher alive today. The University of Nebraska Press makes available for the first English translation of his most important work to date, Glas. Its appearance will assist Derrida's readers pro and con in coming to terms with a complex and controversial book. Glas extensively reworks the problems of reading and writing in philosophy and literature; questions the possibility of linear reading and its consequent notions of theme, author, narrative, and discursive demonstration; (...) and ingeniously disrupts the positions of reader and writer in the text. Glas is extraordinary in many ways, most obviously in its typography. Arranged in two columns, with inserted sections within these, the book simultaneously discusses Hegel’s philosophy and Jean Genet’s fiction, and shows how two such seemingly distinct kinds of criticism can reflect and influence one another. The customary segregation of philosophy, rhetoric, psychoanalysis, linguistics, history, and poetics is systematically subverted. In design and content, the books calls into question “types” of literature (history, philosophy, literary criticism), the ownership of ideas and styles, the glorification of literary heroes, and the limits of literary representation. (shrink)

A penetrating analysis of our technical civilization and of the effect of an increasingly standardized culture on the future of man.

Prodigiously influential, Jacques Derrida gave rise to a comprehensive rethinking of the basic concepts and categories of Western philosophy in the latter part of the twentieth century, with writings central to our understanding of language, meaning, identity, ethics and values. In 1993, a conference was organized around the question, 'Whither Marxism?’, and Derrida was invited to open the proceedings. His plenary address, 'Specters of Marx', delivered in two parts, forms the basis of this book. Hotly debated when it was (...) first published, a rapidly changing world and world politics have scarcely dented the relevance of this book. (shrink)

These two lectures by Jacques Derrida, 'Foreigner Question: Come from Abroad' and 'Step of Hospitality/No Hospitality', derive from a series of seminars on 'hospitality' conducted by Derrida in Paris, January 1996. The book consists of two texts on facing pages. 'Invitation' by Anne Dufourmantelle appears on the left clarifying and inflecting Derrida's 'response' on the right. The interaction between them not only enacts the 'hospitality' under discussion, but preserves something of the rhythms of teaching. The book also characteristically combines (...) careful readings of canonical texts and philosophical topics with attention to the most salient events in the contemporary world, using 'hospitality' as a means of rethinking a range of political and ethical situations. For example, Antigone is revisited in light of the question of impossible mourning; the trial of Socrates is brought into conjunction with the televised funeral of François Mitterrand. (shrink)

Ce livre est donc voué à la bizarrerie. Mais c'est qu'à accorder tout son soin à l'écriture, il la soumet à une réévaluation radicale. Et les voies sont nécessairement extravagantes lorsqu'il importe d'excéder, pour en penser la possibilité, ce qui se donne pour la logique elle-même - celle qui doit déterminer les rapports de la parole et de l'écriture en se rassurant dans l'évidence du sens commun, dans les catégories de 'représentation' ou 'd'image', dans l'opposition du dedans et du dehors, (...) du plus et du moins, de l'essence et de l'apparence, de l'originaire et du dérivé. Analysant les investissements dont notre culture a chargé le signe écrit, Jacques Derrida en démontre aussi les effets les plus actuels et parfois les plus inaperçus. Cela n'est possible que par un déplacement systématique des concepts - on ne saurait en effet répondre à la question 'qu'est-ce que l'écriture?' par un appel de style 'phénoménologique' à quelque expérience sauvage, immédiate, spontanée. L'interprétation occidentale de l'écriture commande tous les champs de l'expérience, de la pratique et du savoir, et jusqu'à la forme ultime de la question ('qu'est-ce que?') qu'on croit pouvoir libérer de cette prise. L'histoire de cette interprétation n'est pas celle d'un préjugé déterminé, d'une erreur localisée, d'une limite accidentelle. Elle forme une structure finie mais nécessaire dans le mouvement qui se trouve ici reconnu sous le nom de différance. (shrink)

Prodigiously influential, Jacques Derrida gave rise to a comprehensive rethinking of the basic concepts and categories of Western philosophy in the latter part of the twentieth century, with writings central to our understanding of language, meaning, identity, ethics and values. In 1993, a conference was organized around the question, 'Whither Marxism?’, and Derrida was invited to open the proceedings. His plenary address, 'Specters of Marx', delivered in two parts, forms the basis of this book. Hotly debated when it was (...) first published, a rapidly changing world and world politics have scarcely dented the relevance of this book. (shrink)

The essays collected here provide English-speaking readers with a lucid and accessible introduction to the world of France's leading contemporary philosopher. A classic student textbook.

Jacques Derrida argues that the feminist and intellectual Hélène Cixous is the most important writer working within the French idiom today. To prove this, he elucidates the epistemological and historical interconnectedness of four terms: genesis, genealogy, genre, and genius, and how they pertain to or are implicated in Cixous's work. Derrida explores Cixous's genius (a masculine term in French, he is quick to point out) and the inspiration that guides and informs her writing. He marvels at her skillful working (...) within multiple genres. He focuses on a number of her works, including her extraordinary novel _Manhattan_ and her lyrical and evocative _Dream I Tell You_, a book addressed to Derrida himself and one in which Cixous presents a series of her dreams. Derrida also delves into the nature of the literary archive, the production of literature, and the importance of the poetic and sexual difference to the entirety of his own work. For forty years, Derrida had a close personal and intellectual relationship with Hélène Cixous. Clever, playful, and eloquent, _Geneses, Genealogies, Genres, and Genius_ charts the influence these two critical giants had on each other and is the most vital work to address Cixous's contribution to French thought. (shrink)

Spinoza, le spinozisme et les fondements de la sécularisation est un ouvrage dédié à la mémoire d’Emmanuel Levinas, dont l’auteur a été l’élève durant plusieurs années. Il vise, à travers une analyse d’ordre philosophique, historique, épistémologique et théologique, à mettre au jour les conditions d’émergence interrelatées du spinozisme et de la sécularisation. Il présente une recherche interdisciplinaire devant permettre d’éclairer l’origine des difficultés théoriques que ce système philosophique présente. Ce volume est le premier d’une pentalogie consacrée à Spinoza et au (...) Spinozisme, dont les autres paraîtront dans la même collection. Spinoza, Spinozism and the Foundations of Secularization is a book dedicated to the memory of Emmanuel Levinas, whose author was a student for several years. It aims, through a philosophical, historical, epistemological and theological analysis, to bring to light the interrelated conditions of emergence of Spinozism and secularization. It presents interdisciplinary research to shed light on the origin of the theoretical difficulties that this philosophical system presents. This volume is the first of a pentalogy devoted to Spinoza and Spinozism, the others of which will appear in the same collection. (shrink)

Interdisciplinary essays on the ethical issues which encompassed the trials and Code of Nuremberg have been collated from researchers from various countries in fields as diverse as medicine, bioethics, psychoanalysis, history, philosophy, Jewish thought, law, and ethics. The book focuses on five main areas: the juridical originality of the Nuremberg trials; the scientific, epistemological, and psychoanalytic backgrounds of racism and anti-Semitism; the biomedical and bioethical issues of the Nuremberg Code; a post-Nuremberg historical, ethical, and philosophical study of the notion of (...) a 'crime against humanity'; and the Jewish perspective on purity, impurity, race, and the universal ethical expectations of mankind. The goal of the interdisciplinary study is to outline the necessary components of a bridge between science ethics, and ethics and law. (shrink)

This paper reports on an approach to model generalized implicatures using nonmonotonic logics. The approach, called compositional, is based on the idea of compositional semantics, where the implicatures carried by a sentence are constructed from the implicatures carried by its constituents, but it also includes some aspects nonmonotonic logics in order to model the defeasibility of generalized implicatures.