Negative self-schemas are fundamental to social anxiety disorder and contribute to its persistence, thus understanding how to change schemas is of critical importance. Memory-based interventions and associated theories propose that reconstructing autobiographical memories tethered to schemas with conceptual details that challenge the associated expectations will lead to schema change. Here, we test this proposal in a between-subjects behavioural experiment with undergraduate participants with social anxiety. All participants were asked to recall aversive social memories, evaluated these memories on a series of (...) scales, including estimates of reoccurrence, and provided ratings of negative and positive schema beliefs. Next, half the participants reconstructed (rescripted) these aversive memories with conceptual details that challenged the active schema (conceptual condition) and the other half reconstructed the memories with additional experiential details (perceptual condition). All participants provided again evaluations of the original memory and their schema beliefs. Our analysis revealed that the conceptual condition led to significant reductions in negative self-schemas, increases in positive self-schemas, and decreases in estimates of future negative event reoccurrence. Thus, effective schema-change, both a weakening of negative schemas and a strengthening of more positive, adaptive schemas, is dependent on altering the underlying meaning of associated autobiographical memories. (shrink)

Political theory is a field that finds nourishment in others. From economics, history, sociology, psychology, and political science, theorists have drawn a rich repertoire of schemas to parse the social world and make sense of it. With each of these encounters, new subjects are brought into focus as others recede into the background, ushering a change not only in how questions are tackled but also in what questions are thought worth asking.

Industrial drug design methodology has undergone remarkable changes in the recent history. Up to the 1970s, the screening of large numbers of randomly selected substances in biological test system was often a crucial step in the development of novel drugs. From the early 1980s, such ‘blind’ screening was increasingly rejected by many pharmaceutical researchers and gave way to ‘rational drug design’, a method that grounds the design of new drugs on a detailed mechanistic understanding of the drug action. Surprisingly, however, (...) the chance-based method of random screening returned to center stage of industrial drug development in the 1990s in the form of ‘high-throughput screening’ (HTS). I will argue in this paper that this to-and-fro in the prominence of random screening comes with fundamental changes in the epistemic significance of chance experiments in pharmaceutical development. While up to the 1970s, random screening used to be chosen as an empirical search strategy primarily because suffi- cient knowledge of the mechanistic basis of drug action was lacking, it has turned with high-throughput screening into an experimental method that employs chance variation and testing to illuminate this mechanistic basis. As a consequence, research into the underlying mechanisms of drug action and the development of new drugs have become closely integrated. The rise of HTS therefore not only shows how chance experiments have assumed a new epistemic role in drug development. It also allows for a detailed study of the much debated emergence of a new relationship between scientific understanding and the development of technological artifacts. (shrink)

In his 1918 monograph \Das Kontinuum", Hermann Weyl initiated a program for the arithmetical foundations of mathematics. In the years following, this was overshadowed by the foundational schemes of Hilbert's nitary consistency program and Brouwer's intuitionistic redevelopment of mathematics. In fact, not long after his own venture, Weyl became a convert to Brouwerian intuitionism and criticized his old teacher's program. Over the years, though, he became more and more pessimistic about the practical possibilities of reworking mathematics along intuitionistic lines, and (...) pointed to the value of his own early foundational e orts. Weyl 's work in Das Kontinuum has come to be recognized for its importance as the opening chapter in the actual development of predicative mathematics, whose extent has been plumbed both mathematically and logically since the 1960s. (shrink)

Roger Bacon’s De signis is a major contribution to the history of semantics. However, we know from the author's summary given in the Opus tertium that it has come down to us in an incomplete form. It belongs to the third part of Bacon’s Opus maius, devoted to the “knowledge of languages”. The three sections of the summary in the Opus tertium enable us to understand its organization. The first section presents various arguments in favor of knowledge of languages. The (...) major part of the second section of the summary is related to the “power of words”, which was originally present in the section on mathematics and magic. The third section is not present is the edition of Opus maius III: it was devoted to the study of signs and signification, which corresponds to the De signis, and circulated independently, and to its application to theology, a section that has not been found. Just as the late Compendium studii theologiae, the De signis offers an original treatment of semantic and linguistic questions which are fully embedded in the sophisticated debates that took place in the faculties of arts in Paris and Oxford during the second half of the 13th century. Bacon’s linguistic analysis can be equally relevant for the study of the Bible and theology. (shrink)

"From the 1930 Reiser edition of the Ars logica, itself comprising the first two parts of the five part Cursus philosophicus of 1631-1635, by the same author.".

Philodemus’ De signis is one of the classical texts of greatest semiotic interest. It reports the debate which arose between the Epicureans and an opposing school, usually identified as the Stoics, concerning semiotic inference. The Epicureans proposed to construct semiotic inferences based on generalizations resting on similarity, ultimately configuring their method as a form of induction. Their opponents attacked the Epicurean proposal in a twofold way: on the one hand, they argued that the Epicureans’ method intrinsically lacked cogency, invalidating their (...) inferences from a logical point of view. On the other, they criticized the notion of similarity, arguing that it is generally a vague notion, and in some cases impossible to implement, as when one is faced with unique cases. The debate is very complex and is divided into replies and rejoinders. The ultimate impression one gets is that the Epicureans were able, for the first time in antiquity, to propose a real method to construct semiotic inferences, even though the latter were subject to fallibility, while their opponents did not propose a method, but a test, “elimination,” able only to check the logical soundness of semiotic inferences. In doing so, they placed themselves in a tradition extending back to the theory of signs formulated – albeit in a significantly different way – by Aristotle. (shrink)

"From the 1930 Reiser edition of the Ars logica, itself comprising the first two parts of the five part Cursus philosophicus of 1631-1635, by the same author.".

Many formal linguists hold that English pitch accent has a single function: marking focus. On the other hand, there is evidence from corpus work and from psycholinguistics that pitch accent is attracted to expressions which are unpredictable. We present a two-factor pragmatic account in which both focus and predictability contribute to the placement of accent in an English intonational phrase. On examples of so-called “second occurrence focus” and related phenomena, our account gives superior results to the one-factor accounts of Rooth (...) and B¨ uring and to Selkirk’s rival two-factor account. (shrink)

This book is a translation and analysis of selected texts written in 1632 by the man better known as John of St. Thomas. Although parts of the Cursus Philosophicus have been translated before, this is the first time that the entirety of questions XXI-XXIII of the Ars Logica, concerning signs and signification, have appeared in English. Besides the translation, which appears side by side with Beato Reiser's 1820 Latin text, there are additional selections from the Cursus on cognitive being, on (...) the category of relation and on terms, a structural analysis of the text, a digression on John of St. Thomas's national origin, complete with chronology of his life, a resume of the text, and an essay on the history of semiotics. (shrink)

In discussions of the date at which Philodemos wrote the treatise περ σημείωѵ κаί σημεώσεωѵ there is general agreement on one point ‘that for this purpose our best evidence is a passage from col. 2, II. 11 sqq., of the papyrus. The author is there explaining the difficulties of induction in allowing for unobserved variations, and in taking Man as an instance he quotes first ‘the Kretan giant’ and then οѷ)ς έѵ՚ Акώρε π∋γμα∕ονς δονσιν νλει δ՚ ν∕αóγο’ Aντώνιος νûν ∕ (...) κ Ʃụρίαμσ(ατ. In the last line the letters of the papyrus are ΕΞΡΙΑΣ, which equally well may represent either § 'ρας or κ Σνρας but κ Σνρας has held the field since it was first suggested by Gomperz. (shrink)

Parmi les différentes approches possibles de la matière historique, on observe souvent, dans la littérature, une tension entre les deux options suivantes : faire d’un auteur le précurseur d'une révolution dont notre modernité serait l'héritière directe, ou au contraire, et par réaction, se livrer à un travail de remise en contexte détaillé qui prend parfois le risque de gommer l'originalité possible de ce même auteur. Le Traité sur les signes de Jean Poinsot, dominicain du début du XVIIe siècle, a ainsi (...) d’abord été édité comme un texte annonciateur de la sémiotique de Peirce, la thèse de cette originalité révolutionnaire étant fondée sur le traitement de la catégorie de la relation. Le travail critique qui s’est effectué en réaction tempère, parfois de façon excessive, la nouveauté de cet auteur du point de vue de sa contribution à la pensée des signes. Cet article s’inscrit dans cette démarche de remise en contexte en proposant une comparaison entre le texte de Poinsot et les Quaestiones sur les signes, que l'on doit à Sebastião do Couto, commentateur de l'université de Coimbra. Optant pour une contextualisation qui vise à mesurer l’originalité relative de Poinsot, cette étude porte sur les variations de la description du rapport du signe à l'intention. Nous montrerons ainsi que même si les contenus du discours sur les signes ne comportent que de maigres différences, on peut cependant constater une certaine originalité de Poinsot dans son traitement de la relation, qui l’amène à reconfigurer l’ordonnancement de la question des signes. (shrink)

Parmi les différentes approches possibles de la matière historique, on observe souvent, dans la littérature, une tension entre les deux options suivantes : faire d’un auteur le précurseur d'une révolution dont notre modernité serait l'héritière directe, ou au contraire, et par réaction, se livrer à un travail de remise en contexte détaillé qui prend parfois le risque de gommer l'originalité possible de ce même auteur. Le Traité sur les signes de Jean Poinsot (appelé également Jean de Saint Thomas), dominicain du (...) début du XVIIe siècle, a ainsi d’abord été édité comme un texte annonciateur de la sémiotique de Peirce, la thèse de cette originalité révolutionnaire étant fondée sur le traitement de la catégorie de la relation. Le travail critique qui s’est effectué en réaction tempère, parfois de façon excessive, la nouveauté de cet auteur du point de vue de sa contribution à la pensée des signes. Cet article s’inscrit dans cette démarche de remise en contexte en proposant une comparaison entre le texte de Poinsot et les Quaestiones sur les signes, que l'on doit à Sebastião do Couto, commentateur de l'université de Coimbra. Optant pour une contextualisation qui vise à mesurer l’originalité relative de Poinsot, cette étude porte sur les variations de la description du rapport du signe à l'intention. Nous montrerons ainsi que même si les contenus du discours sur les signes ne comportent que de maigres différences, on peut cependant constater une certaine originalité de Poinsot dans son traitement de la relation, qui l’amène à reconfigurer l’ordonnancement de la question des signes. (shrink)

The full Bayesian signi/cance test (FBST) for precise hypotheses is presented, with some illustrative applications. In the FBST we compute the evidence against the precise hypothesis. We discuss some of the theoretical properties of the FBST, and provide an invariant formulation for coordinate transformations, provided a reference density has been established. This evidence is the probability of the highest relative surprise set, “tangential” to the sub-manifold (of the parameter space) that defines the null hypothesis.

Resumen La filosofía de Hume se ha interpretado tradicionalmente como radicalmente escéptica respecto de la posibilidad de otorgarle justificación epistémica a nuestras creencias inductivas acerca del futuro y lo inobservado. En este artículo me focalizaré en las creencias inductivas originadas en la costumbre y señalaré - contra la tradición exegética- que un análisis riguroso de las características propias de los mecanismos psicológicos involucrados en la formación de esta clase de creencias sí nos permite otorgarles mérito epistémico y atribuirles justi (...) class='Hi'>ficación bajo una lectura externalista.Hume'sphilosophy has been traditionally interpreted as radically skeptical about the possibility of giving epistemic justification to our inductive beliefs about the future and the unobserved. In this article I willfocus on the inductive beliefs originated in custom and I willpoint out - against the exegetical tradition - that a rigorous analysis of the characteristics of the psychological mechanisms involved in the formation of this class of beliefs does allow us to grant them epistemic merit and attribute justification to them under an externalist reading. (shrink)

El artículo es un esbozo general de los procedimientos decisorios parafórmulas monádicas de primer grado tratados por Juan Bautista Ferro. Seinicia con una breve semblanza de Ferro. Luego trata el problema de ladecisión, y presenta los procedimientos decisorios de Quine (QS, QL y QM),Georg H. Von Wright (VW), Bernays Schonfinkel (BS), S.C. Kleene y elprocedimiento decisorio Ferro Herbrand (FH). Cada uno de estos métodos muestra el esfuerzo por reducir la lógica cuan ti ficacional monádica de primer orden a la lógica (...) proposicional; en este sentido, el método FH opera con mayores ventajas sobre los otros métodos. (shrink)

A significant portion of the world’s text is tagged by readers on social bookmarking websites. Credit attribution is an inherent problem in these corpora because most pages have multiple tags, but the tags do not always apply with equal specificity across the whole document. Solving the credit attribution problem requires associating each word in a document with the most appropriate tags and vice versa. This paper introduces Labeled LDA, a topic model that constrains Latent Dirichlet Allocation by defining a one-to-one (...) correspondence between LDA’s latent topics and user tags. This allows Labeled LDA to directly learn word-tag correspondences. We demonstrate Labeled LDA’s improved expressiveness over traditional LDA with visualizations of a corpus of tagged web pages from del.icio.us. Labeled LDA outperforms SVMs by more than 3 to 1 when extracting tag-specific document snippets. As a multi-label text classifier, our model is competitive with a discriminative baseline on a variety of datasets. (shrink)

While the epistemic significance of disagreement has been a popular topic in epistemology for at least a decade, little attention has been paid to logical disagreement. This monograph is meant as a remedy. The text starts with an extensive literature review of the epistemology of (peer) disagreement and sets the stage for an epistemological study of logical disagreement. The guiding thread for the rest of the work is then three distinct readings of the ambiguous term ‘logical disagreement’. Chapters 1 and (...) 2 focus on the Ad Hoc Reading according to which logical disagreements occur when two subjects take incompatible doxastic attitudes toward a specific proposition in or about logic. Chapter 2 presents a new counterexample to the widely discussed Uniqueness Thesis. Chapters 3 and 4 focus on the Theory Choice Reading of ‘logical disagreement’. According to this interpretation, logical disagreements occur at the level of entire logical theories rather than individual entailment-claims. Chapter 4 concerns a key question from the philosophy of logic, viz., how we have epistemic justification for claims about logical consequence. In Chapters 5 and 6 we turn to the Akrasia Reading. On this reading, logical disagreements occur when there is a mismatch between the deductive strength of one’s background logic and the logical theory one prefers (officially). Chapter 6 introduces logical akrasia by analogy to epistemic akrasia and presents a novel dilemma. Chapter 7 revisits the epistemology of peer disagreement and argues that the epistemic significance of central principles from the literature are at best deflated in the context of logical disagreement. The chapter also develops a simple formal model of deep disagreement in Default Logic, relating this to our general discussion of logical disagreement. The monograph ends in an epilogue with some reflections on the potential epistemic significance of convergence in logical theorizing. (shrink)

(2) There is significant cultural variation in the way people reason, categorize, and react to various aspects of the world. A proper understanding of such variation has implications for theories about human nature – and cognitive architecture – and its malleability. In turn, these theories have implications for theories about the status and generalisability of psychological explanations (see Nisbett 2003), for theories about the extent to which social engineering and social reform is possible (see Singer 2000), etc.

Why is two-dimensional semantics important? One can think of it as the most recent act in a drama involving three of the central concepts of philosophy: meaning, reason, and modality. First, Kant linked reason and modality, by suggesting that what is necessary is knowable a priori, and vice versa. Second, Frege linked reason and meaning, by proposing an aspect of meaning (sense) that is constitutively tied to cognitive signi?cance. Third, Carnap linked meaning and modality, by proposing an aspect of (...) meaning (intension) that is constitutively tied to possibility and necessity. (shrink)