Intervencions a càrrec de Ronald J. Allen i Susan Haack sobre diferents idees del pensament de Michele Taruffo.

Previous plan‐based models of dialogue understanding have been unable to account for many types of subdialogues present in naturally occurring conversations. One reason for this is that the models have not clearly differentiated between the varoius ways that an utterance can relate to a plan structure representing a topic. In this paper we present a plan‐based theory that allows a wide variety of utterance‐plan relationships. We introduce a set of discourse plans, each one corresponding to a particular way that an (...) utterance can relate to a discourse topic, and distinguish such plans from the set of plans that are actually used to model the topics. By incorporating knowledge about discourse into a plan‐based framework, we can account for a wide variety of subdialogues while maintaining the computational advantages of the plan‐based approach. (shrink)

Few areas of scientific investigation have spawned more alternative approaches than animal behavior: comparative psychology, ethology, behavioral ecology, sociobiology, behavioral endocrinology, behavioral neuroscience, neuroethology, behavioral genetics, cognitive ethology, developmental psychobiology---the list goes on. Add in the behavioral sciences focused on the human animal, and you can continue the list with ethnography, biological anthropology, political science, sociology, psychology (cognitive, social, developmental, evolutionary, etc.), and even that dismal science, economics. Clearly, no reasonable-length chapter can do justice to such a varied collection. We (...) have opted therefore to focus on three of these subdisciplines and to provide a somewhat historical tour of them, mentioning along the way the philosophical points that are of particular interest to us, but allowing the development of these points to be limited only by the imaginations of our readers. For readers seeking a more-traditional historical survey, see Dewsbury (1984a, b) and Burghardt (1985a). Our chosen brief is to write about comparative psychology, ethology, and cognitive ethology, although other approaches, especially neuroscience, will be mentioned where appropriate. These sciences are philosophically significant because they are enmeshed in ancient philosophical questions about the nature of mind and purposeful action and about the differences between humans and other animals. These sciences are also clustered because of their attention to mechanistic explanations of individual animal behavior as opposed to attempting to capture regularities at a population level, such as the game-theoretic strategic models popular among behavioral ecologists. (shrink)

Evolutionary theories of schizophrenia must account for the maintenance of putative alleles in past and present populations despite reduced fitness among the affected. Such models must also account for extant intersex and population-level variability in the expression of schizophrenia. We argue that genetic balanced-polymorphism hypotheses remain the most robust in terms of modeling and testing these processes in populations.

ABSTRACTEmotions are predicted to influence judgement and decision-making across a range of performance contexts. This experiment tested whether motivational-general arousal imagery can improve the decision-making performance of elite endurance cyclists. In total, 54 cyclists were assigned to either a positive imagery condition or a negative imagery condition. The cyclists were read one of two scripts designed to elicit positive or negative images during a 20-min maximal sustainable interval on a cycle ergometer. A decision-making task was performed before and immediately after (...) the maximal sustainable power interval. Results showed that the manipulation was successful with cyclists in the positive imagery condition reporting more positive affective states (higher levels of happiness and lower level... (shrink)

Research has shown that adults can engage in cognitive offloading, whereby internal processes are offloaded onto the environment to help task performance. Here, we investigate an application of this approach with children, in particular children with poor working memory. Participants were required to remember and recall sequences of colors by placing colored blocks in the correct serial order. In one condition the blocks were arranged to facilitate cognitive offloading (i.e., grouped by color), whereas in the other condition they were arranged (...) randomly. Across two experiments (total N = 166) the ordered condition improved task performance for children with low working memory ability. In addition, participants in Experiment 2 rated the difficulty of the two arrangements and performed a further condition in which they were given an opportunity to freely arrange the blocks before completing the task. Despite performing better in the ordered condition, children with low working memory ability did not rate the ordered arrangement as easier, nor did they choose an ordered arrangement when given the opportunity to do so. This research shows that cognitive offloading can also be a useful process in populations other than typical adults, and the implications of this work for supporting children with poor working memory are discussed. (shrink)

The mainstream science of consciousness offers a few predominate views of how the brain gives rise to awareness. Chief among these are the Higher-Order Thought Theory, Global Neuronal Workspace Theory, Integrated Information Theory, and hybrids thereof. In parallel, rapid development in predictive processing approaches have begun to outline concrete mechanisms by which interoceptive inference shapes selfhood, affect, and exteroceptive perception. Here, we consider these new approaches in terms of what they might offer our empirical, phenomenological, and philosophical understanding of consciousness (...) and its neurobiological roots. (shrink)

Background: Clinical genomic implementation studies pose challenges for informed consent. Consent forms often include complex language and concepts, which can be a barrier to diverse enrollment, and these studies often blur traditional research-clinical boundaries. There is a move toward self-directed, web-based research enrollment, but more evidence is needed about how these enrollment approaches work in practice. In this study, we developed and evaluated a literacy-focused, web-based consent approach to support enrollment of diverse participants in an ongoing clinical genomic implementation study. (...) Methods: As part of the Cancer Health Assessments Reaching Many (CHARM) study, we developed a web-based consent approach that featured plain language, multimedia, and separate descriptions of clinical care and research activities. CHARM offered clinical exome sequencing to individuals at high risk of hereditary cancer. We interviewed CHARM participants about their reactions to the consent approach. We audio recorded, transcribed, and coded interviews using a deductively and inductively derived codebook. We reviewed coded excerpts as a team to identify overarching themes. Results: We conducted 32 interviews, including 12 (38%) in Spanish. Most (69%) enrolled without assistance from study staff, usually on a mobile phone. Those who completed enrollment in one day spent an average of 12 minutes on the consent portion. Interviewees found the information simple to read but comprehensive, were neutral to positive about the multimedia support, and identified increased access to testing in the study as the key difference from clinical care. Conclusions: This study showed that interviewees found our literacy-focused, web-based consent approach acceptable; did not distinguish the consent materials from other online study processes; and valued getting access to testing in the study. Overall, conducting empirical bioethics research in an ongoing clinical trial was useful to demonstrate the acceptability of our novel consent approach but posed practical challenges. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:"And They Sang A New Song":Reading John's Revelation From The Position Of The LambJ.A. Jackson (bio) and Allen H. Redmon (bio)Then one of the elders said to me, "Do not weep. See, the Lion of the tribe of Judah, the Root of David, has conquered, so that he can open the scroll and the seven seals." Then I saw between the throne and the four living creatures and (...) among the elders a Lamb standing as if it had been slaughtered.—Revelation 5:5–6In an interview with Markus Müller, René Girard asserts the importance of taking into account the apocalypticism of Christianity. Apocalypse, Girard reminds us, "means revelation: apocalypto means to open up and to show the truth. But it also means absolute violence, so the apocalypse is a violent revelation and a revelation of violence" (Girard 1996). That the Revelation is a violent revelation has been well established. Despite textual evidence that would beg those who approach the text to do just the opposite, readers have fixated on the violence of the Revelation since its inception, finding in it God's final retribution against those who persecute the Church.1 Commentators such as Dennis E. Johnson, William Hendricksen, and George Elden Ladd have produced recent, full-length commentaries that champion the appearance of a Christ in Revelation ready to establish himself as a military champion and exact his revenge on those who persecute him (see, for example, Johnson 2001; Hendricksen 1998; and Ladd 1993). These accounts, and those that follow suit, are blinded by the violent revelation of John's apocalyptic narrative and fail to see the poem's revelation of violence—the other, prophetic half of what Girard rightly contends exists in Christian apocalypse.This error is understandable to some extent. Read in its own light and apart from the Gospel revelation as understood by those familiar with mimetic [End Page 99] theory, one has no hermeneutical principle for recognizing the end to which John is writing. The victims of the text can be ignored in the precise way that all victims are disregarded when the scapegoat mechanism functions properly. Such should not be the case in the Revelation, though, a text in which the scapegoat mechanism is exposed and pushed to its logical conclusions. John offers his reader a glimpse into the way this mechanism will function when all that is left is wall-to-wall violence, when one is left with only two alternatives: succumb to the mechanism and reciprocate its violence, or extricate oneself through nonreciprocation (and potentially die).In the margins of the violent revelation in John's apocalyptic vision, a revelation of violence emerges that can expose humankind's potential to annihilate itself and the mechanism with which it will do so. When read through the lens of mimetic theory, one discovers that John's narrative delivers a revelation of violence, an explicit naming and unmasking of the sacrificial mechanism that can capture for the reader not only the machinations of the sacrificial apparatus but one's own potential participation in it as well. As such, the poem can posit itself as a commandment (a Thou-shall-not-murder) that ultimately refuses the temptation to respond to violence in violence.The fact that John uses the apocalyptic to present this directive should not be surprising. Girard writes: "Only through the mediation of the scapegoat mechanism can violence become its own remedy, and the victimage mechanism can only be triggered by the frenetic paroxysm of the 'crisis.' This means that the violence, having lost its vitality and bite, will paradoxically be more terrible than before its decline. As the whole of humanity makes the vain effort to reinstate its reconciliatory and sacrificial virtues, this violence will without doubt tend to multiply its victims, just as happened in the time of the prophets" (Girard 1978, 195–96). While Girard's commentary on biblical eschatology and apocalypse refers mainly to the scapegoat mechanism as it applies to and is revealed in the Gospel texts, we see the immediacy and the frenzy of the apocalyptic and the ubiquitous violent mimetic appropriations also performed in John's Revelation.2 John captures... (shrink)

It is not uncommon to hear that poor school performance, welfare dependancy, youth unemployment, and criminal activity result more from shortcomings in the personal makeup of individuals than from societal forces beyond their control. Are American values declining as so many suggest? And are those values at the root of many social problems today?Shaped by experience and public policies, people's values and social norms do change. What role can or should a democratic government play in shaping values? And how do (...) these values conditon the efficacy of public policy?In this book, six distinguished social scientists identify trends in America's values and their consequences, and consider public policy tools with which some of those values might be changed.Daniel Yankelovich begins with a discussion of how American values have shifted in the last half-century, and argues that affluence is the driving force behind these changes in values. James Q. Wilson argues that destructive habits which can lead to social pathologies, like crime and drug use, are set early in life; he examines how public policy might intervene when children are young to promote better values. David Popenoe maintains that America has veered too far towards industrialist values, and explores the resulting decline of families and many attendant social ills. Nathan Glazer describes the history and present status of the dispute over multicultural education. Jane Mansbridge examines the process of building cooperation, consensus, and public spirit. And George Akerlof and Janet L. Yellen discuss the problem of gang criminality.Inthe past, social scientists have often sidestepped questions about values as undefinable, unquantifiable, and somehow unscientific. The essays in this volume address these questions at last.Henry J. Aaron, director of the Economic Studies program at Brookings, is the authorof numerous books, including most recently Serious and Unstable Condition: Financing America's Health Care (1991), and coeditor of Setting Domestic Priorities (1992). Thomas E. Mann is director of the Brookings Governmental Studies program, coeditor of Media Polls in American Politics (1992), and coauthor of the Renewing Congress series (1993). Timothy Taylor is managing editor of the Journal of Economic Perspectives at Stanford University. (shrink)

We revisit Naturalized Epistemology and the Law of Evidence, published twenty years ago. The evolution of the relative plausibility theory of juridical proof is offered as evidence of the advantage of a naturalized approach to the study of the field and law evidence. Various alternative explanations of aspects of juridical proof from other disciplines are examined and their shortcomings described. These competing explanations are similar in their reductive, a priori approaches that are at odds with an empirically oriented naturalized approach. (...) The shortcomings of the various a priori approaches are driven by their common methodological commitments to employing weird hypotheticals to engage in intuition mining about the American legal systems that in turn ignore important aspects of the actual legal systems and consistently make impossible epistemological demands. As a result, both their descriptions of and prescriptions for American legal systems are implausible, unlike the relative plausibility theory. (shrink)

As one of the most important ethicists to emerge since the Second World War, Alan Gewirth continues to influence philosophical debates concerning morality. In this ground-breaking book, Gewirth's neo-Kantianism, and the communitarian problems discussed, form a dialogue on the foundation of moral theory. Themes of agent-centered constraints, the formal structure of theories, and the relationship between freedom and duty are examined along with such new perspectives as feminism, the Stoics, and Sartre. Gewirth offers a picture of the philosopher's theory and (...) its applications, providing a richer, more complete critical assessement than any which has occurred to date. (shrink)

Legal scholarship exploring the nature of evidence and the process of juridical proof has had a complex relationship with formal modeling. As evident in so many fields of knowledge, algorithmic approaches to evidence have the theoretical potential to increase the accuracy of fact finding, a tremendously important goal of the legal system. The hope that knowledge could be formalized within the evidentiary realm generated a spate of articles attempting to put probability theory to this purpose. This literature was both insightful (...) and frustrating. Much light was shed on the legal system, but it also quickly became evident that the tools of probability theory were in many ways ill-constructed for the task. Fundamental incompatibilities between the structure of legal decision making and the extant formal tools were identified, and it became evident that many of the purported explanations of legal phenomena were internally inconsistent. As a consequence, interest in this type of formal modeling declined, and attention was directed toward different kinds of explanations of the phenomena. Perhaps under the influence of a recent trend toward various types of formal modeling in legal scholarship, a recent burst of articles, rather than attempting to explain the macro structure of trials, which was the previous object of interest, attempts to quantify the probative value of various items of evidence in ways consistent with the formal features of various probability theories, and then to study decision making from that perspective. For example, the value of evidence is often purported to be its likelihood ratio, that is, the probability of discovering or receiving the evidence given a hypothesis (e.g., the defendant did it) divided by the probability of discovering or receiving the evidence given the negation of the hypothesis (the defendant didn't do it). Alternatively, the value of evidence is purported (more contextually) to be the information gain it provides, defined as the increase in probability it provides for a hypothesis above the probability of the hypothesis based on the other available evidence. Both conceptions then assume that all of the various probability assessments conform or ought to conform to the dictates of Bayes' theorem (that maintains consistency among such assessments); empirical studies are then done testing the extent to which this is so and proposing how the law can increase the probability that it is so. The general criticisms of using Bayes' theorem as a formal model of juridical proof are well known and were integral to the last wave of interest in formal modeling of the evidentiary process. This paper thus for the most part puts aside that more general issue, and focuses specifically on mathematical modeling of the value of particular items of evidence. The paper demonstrates that formal modeling has only limited value in explaining the value of legal evidence, much more limited than those constructing and discussing the models assume, and thus that the conclusions they draw about the value of evidence are unwarranted. This is done through a discussion of four recent examples that attempt to quantify evidence relating to, respectively, carpet fibers, infidelity, DNA random-match evidence, and character evidence used to impeach a witness. This article thus makes two contributions. First, and most importantly, it is another demonstration of the complex relationship between algorithmic tools and legal decision making. Second, at a minimum it points out serious pitfalls for analytical or empirical studies of juridical proof. (shrink)

Predictive processing approaches to the mind are increasingly popular in the cognitive sciences. This surge of interest is accompanied by a proliferation of philosophical arguments, which seek to either extend or oppose various aspects of the emerging framework. In particular, the question of how to position predictive processing with respect to enactive and embodied cognition has become a topic of intense debate. While these arguments are certainly of valuable scientific and philosophical merit, they risk underestimating the variety of approaches gathered (...) under the predictive label. Here, we first present a basic review of neuroscientific, cognitive, and philosophical approaches to PP, to illustrate how these range from solidly cognitivist applications—with a firm commitment to modular, internalistic mental representation—to more moderate views emphasizing the importance of ‘body-representations’, and finally to those which fit comfortably with radically enactive, embodied, and dynamic theories of mind. Any nascent predictive processing theory must take into account this continuum of views, and associated theoretical commitments. As a final point, we illustrate how the Free Energy Principle attempts to dissolve tension between internalist and externalist accounts of cognition, by providing a formal synthetic account of how internal ‘representations’ arise from autopoietic self-organization. The FEP thus furnishes empirically productive process theories by which to guide discovery through the formal modelling of the embodied mind. (shrink)

The article opens with a brief discussion of the cultural economy of cities. A framework for investigating this phenomenon is then proposed, paying special attention to the interconnections between the system of production, its geographic milieu and the logistics of distribution. An overview of the structure and logic of the French film industry is laid out in which the fragmentation of production activities and labor markets is stressed. The policy system governing the French film industry is described in detail, and (...) the special role of the CNC (Centre National de la Cinématographie) is highlighted. The industry is then shown to be deeply interwined with the urban milieu of Paris, both in terms of its locational structure and its cultural dynamics. The final major section of the article deals with issues of industrial survival and competitiveness in the new global economy. It is suggested that French film policy needs to shift from a posture of defensive support of the industry to a more clearly articulated and aggressive concern with rebuilding market share in both the domestic and international arenas. (shrink)

Igli era La Meca de los Almohades. En la cueva de Igli Muhammad Ibn Tûmart proclamó el principio del movimiento almohade en África del norte. A pesar de la importancia de Igli, no se conocía su localización exacta o de la cueva de Ibn Tûmart. Aquí se detalla el descubrimiento de la pequeña aldea de Igli 30 kilómetros al este de Tarûdant. La localización de esta aldea moderna parece corresponder con el Igli almohade. Las fuentes primarias, el testimonio oral y (...) los restos físicos se aducen como evidencia de que el Igli moderno era el lugar de nacimiento de Ibn Tûmart. (shrink)