On The Dynamics Of Alper And Bridger

Bridger and Alper (1999) maintain that the nonphysical featuresof the supertasks described by Pérez Laraudogoitia (1996) involving a system containing an infinite number of particles may be avoided by introducing, in a specific way, Hilbert space in classical dynamics. I argue that it is possible to interpret their proposal in two ways, neither of which is acceptable for the purpose for which it was introduced.     

On fair countable lotteries

Two reverse supertasks—one new and one invented by Pérez Laraudogoitia (Philos Stud 168:619–628, 2014)—are discussed. Contra Kerkvliet (Log Anal, 2016) and Pérez Laraudogoitia, it is argued that these supertasks cannot be used to conduct fair infinite lotteries, i.e., lotteries on the set of natural numbers with a uniform probability distribution. The new supertask involves an infinity of gods who collectively select a natural number by each removing one ball from a collection of initially infinitely many balls in a reverse omega-sequence of actions.     

The staccato roller coaster: a simple physical model of the staccato run

I present a simple model of Grünbaum’s staccato run in classical mechanics, the staccato roller coaster. It consists of a bead sliding on a frictionless wire shaped like a roller coaster track with infinitely many hills of diminishing size, each of which is a one-dimensional variant of the so-called Norton dome. The staccato roller coaster proves beyond doubt the dynamical (and hence logical) possibility of supertasks in classical mechanics if the Norton dome is a proper system of classical mechanics with metaphysical import. If not, challenges raised against the metaphysical significance of the Norton dome are shown to be challenges against various arguments for the dynamical possibility of supertasks, and the staccato roller coaster clearly shows the importance of meeting these challenges. And the staccato roller coaster can provide, as well as interesting lessons, illuminating analyses of Burke’s (Mod Schoolman 78:1–8, 2000) attempt to refute the dynamical possibility of the staccato run and Pérez Laraudogoitia’s (Synthese 148:433–441, 2006) rebuttal of it.     

The effects of age of acquisition and frequency trajectory on object naming: Comments on Pérez (2007)

Pérez (2007) reported that objective age of acquisition (AoA) was a major determinant of adult object naming latencies when frequency trajectory and cumulative frequency were included in the same regression analysis. In this comment, we discuss several issues concerning the influence of frequency trajectory and AoA and argue that objective AoA is a behavioural outcome and a natural covariate of frequency trajectory. Bonin, Barry, Méot, and Chalard (2004) argued that the critical test of age-limited learning effects is finding an effect of frequency trajectory when AoA was not included as a factor. This critical test was lacking in Pérez's (2007) study, but several re-analyses of his data show that frequency trajectory is a reliable predictor of naming speed when objective AoA is not included in the regression. We conclude that frequency trajectory remains an important independent variable for the study of the effects of age-limited learning.     

Employing emotions to drive plot generation in a computer-based storyteller

Emotions are an integral part of the creative process; however, it is hard to find computer models of creativity where emotions play a fundamental role. This paper describes a computer model for plot generation based on emotions and tensions between characters. In particular, the document illustrates how emotions are employed to progress a story in a coherent way and generate novel situations, and how the dramatic tension of the story in progress can be employed to evaluate its interestingness. The model is implemented in a computer program named MEXICA [Pérez y Pérez, R., & Sharples, M. (2001). MEXICA: a computer model of a cognitive account of creative writing. Journal of Experimental and Theoretical Artificial Intelligence, 13(2), 119–139]; this work concentrates on the role of emotions in plot generation. The main claim is that a story can be represented as a cluster or group of emotional links and tensions between characters that progresses over story-time; story-actions work as operators that modify such clusters. I present results showing how story generation is affected by various model parameters. This approach means the program is flexible, as it avoids using predefined story-structures or characters’ goals to drive story generation. Furthermore, evaluation of computer generated stories showed that MEXICA’s stories were most often selected as the best story. This suggests that the story-generation mechanisms within MEXICA are sufficiently rich to generate interesting and novel stories.     

Book Reviews

Book reviewed in this article: Metropolitan Anthony of Sourozh, The Living Body of Christ Owen F. Cummings, Canterbury Cousins: The Eucharist in Contemporary Anglican Theology Elisabeth Schüssler Fiorenza, The Power of the Word: Scripture and the Rhetoric of Empire Manuel Quintero Pérez and Carlos Sintado, Pasión y compromiso con el Reino de Dios: El testimonio ecuménico de Emilio Castro [Passion and commitment to the Kingdom of God: the ecumenical testimony of Emilio Castro] Dagmar Heller, Christina Kayales, Barbara Rudolph, Gert Rüppell, Heinrich Schäfer, eds, Mache Dich Auf und werde licht!, Arise, Shine! Ecumenical Visions in Times of Change Anthony R. Cross, editor, Ecumenism and History: Studies in Honor of John H. Y. Briggs, Studies in Christian History and Thought     

Physical Action Without Interaction

In “Action without interaction” (2005) I showed that one might act on a physical system (there, a particle), without interacting with it, by the procedure of making it disappear. This paper presents further extensions and a critique of that result. These extensions show why physical actions without interaction are possible, while underscoring the philosophical fertility of a characteristic approach to the actual infinite inaugurated by Benardete.

---

Two Ways Of Looking At A Newtonian Supertask

A supertask is a process in which an infinite number of individuated actions are performed in a finite time. A Newtonian supertask is one that obeys Newton's laws of motion. Such supertasks can violate energy and momentum conservation and can exhibit indeterministic behavior. Perez Laraudogoitia, who proposed several Newtonian supertasks, uses a local, i.e., particle-by-particle, analysis to obtain these and other paradoxical properties of Newtonian supertasks. Alper and Bridger use a global analysis, embedding the system of particles in a Banach space, to determine the origin of the strange behavior. This paper provides a common framework for the discussion of both the local and global methods of analysis. Using this single framework, the areas of disagreement and agreement are made explicit. Further examples of supertasks are proposed to illuminate various aspects of the discussion.     

A Note on some New Infinity Puzzles

Philosophia - In this short note I argue that, using the type of configurations put forward in a recent paper by Laraudogoitia in this same journal, new paradoxes of infinity of a completely...     

The Humean problem of induction and Carroll’s Paradox

Hume argued that inductive inferences do not have rational justification. My aim is to reject Hume’s argument. The discussion is partly motivated by an analogy with Carroll’s Paradox, which concerns deductive inferences. A first radically externalist reply to Hume (defended by Dauer and Van Cleve) is that justified inductive inferences do not require the subject to know that nature is uniform, though the uniformity of nature is a necessary condition for having the justification. But then the subject does not have reasons for believing what she believes. I defend a moderate externalist account that seeks to partly accommodate that objection to the radical externalist proposal. It is based on an extension of Peacocke’s theory of concepts: possession conditions for predicative concepts standing for natural properties include (fallible) dispositions to project them to new cases in accordance with inductive inferential patterns.

Finding the Future in the Past: Péter Pázmány’s Felelet

This article examines the historical perspective articulated by Péter Pázmány, a future primate of Hungary, in his first major vernacular work, produced in answer to what he saw as the calumniation of Hungarian Catholicism by the Protestant preacher, István Magyari. In this text, Pázmány offered an alternative providential explanation for the disaster of the Turkish conquest in sixteenth-century Hungary. Magyari had ascribed the Turkish invasion to divine chastisement of the Hungarian nation for its sins, particularly because of the idolatrous nature of Catholic worship. Pázmány’s text offered an alternative reading emphasizing the discontinuity created by the Reformation, by linking the fall of the Hungarian kingdom to the advent of Lutheranism. Accordingly a realm, which had lasted for hundreds of years while the Catholic faith had been preserved, was swiftly overthrown when heresy began to sap it from within.     

Paying the cost of skeptical theism

In this paper I show that two arguments for the inconsistency of skeptical theism fail. After setting up the debate in “Introduction” section, I show in “The initial debate” section why Mylan Engel’s argument (Engel 2004) against skeptical theism does not succeed. In “COST” section I strengthen the argument so that it both avoids my reply to Engel and parallels Jon Laraudogoitia’s argument against skeptical theism (Laraudogoitia 2000). In “COST*” section, I provide three replies—one by an evidentialist theist, one by a closure-denying theist, and one by a necessitarian theist, and argue that the necessitarian’s reply successfully rebuts the inconsistency charge. I conclude that skeptical theism which accepts God’s necessary existence is immune to both kinds of arguments for its inconsistency.     

ROLE PERCEPTIONS IN PERU1

Perception des râles au Pérou. — Le Différentiateur de Rôle (RD) a été utilisé pour étudier comment les Péruviens (N = 161) perçoivent les rôles. Les analyses factorielles font apparaître cinq facteurs de comportement identiques pour chacune des deux formes de l'instrument qui ont été utilisées. Une analyse factorielle (two-mode factor analysis) à 6 types de sujets pour chacune des deux formes, mais il n'y a pas de différences majeures dans les structures de réponses par rapport aux facteurs de comportement. Les échantillons sont supposés provenir de la même population. Les résultats sont cohérents avec l'hypothèse selon laquelle des normes de conduite clairement définies sont liées aux différences dans le statut social des paires de rôles qui reflètent le caractère hiérarchique de la société. l'hypothèse d'une invariance interculturelle de la structure factorielle des normes de conduite est confirmée. Les AA. résument brièvement les différences essentielles qui apparaissent dans la perception des rôles chez les Américains, les Grecs et les Péruviens.     

Entrevista a Dan I. Slobin

RESUMEN

El autor comienza explicando los factores que motivaron su interés por la psicolingüística evolutiva a principios de los sesenta. Tras exponer brevemente cuál es la significación del estudio del lenguje en la comprensión global del sujeto humano y justificar su atención a la adquisición de lenguas altamente inflexionales como el ruso o el turco, Slobin nos habla extensamente del Berkeley Crosslinguistic Acquisition Project (“Proyecto translingüístico sobre adquisición de Berkeley”), del cual fue uno de los máximos inspiradores. El autor aborda, además, cuestiones relativas a su teoría de la Gramática Básica Infantil, la síntesis de sus Principios Operativos para la adquisición del lenguaje o la posibilidad de aproximar las concepciones de Piaget y Chomsky. La última parte se reserva para las tendencias teóricas y de investigación que considera prometedoras en este campo, finalizando con algunas reflexiones en torno a la situación multilingüe de España y el estudio de la adquisición del lenguaje. Los comentarios de Miguel Pérez Pereira acerca de este importante investigador de la psicolingüística evolutiva introducen la entrevista.     

A relationship with Señor de Carácuaro

The present paper explores the issue of personal relationships in the context of pilgrimage. Most literature about pilgrimage in Latin America focuses on the journey, or on the alleged ‘sacred power’ located in the shrine and sought by the pilgrims. I argue that, from the perspective of the participants’ experience, pilgrimage could be understood in terms of personal relationships with particular holy beings, who are perceived as agents. Through the particular case of Marta, a young Purhépecha woman from Lake Pátzcuaro (Mexico), I will examine the modes in which people from this area relate, interact and communicate with saintly beings in the context of pilgrimage; the connection of vows with quotidian experience; and the implications of relationships with saints for people in their everyday lives.     

Book Reviews

Book reviewed in this article: Elizabeth Behr Sigel, Un moine de l'Eglise d'Orient: Le Père Lev Gillet Gustavo Gutiérrez, Las Casas: In Search of the Poor of Jesus Christ Stephen B. Bevans, Models of Contextual Theology: The Struggle for Cultural Relevance T'ien Ju-K'ang, Peaks of Faith: Protestant Mission in Revolutionary China     

Self-Regulation Research in Work and I/O Psychology

Les recherches de psychologie industrielle/organisationnelle (I/O) sur les objectifs et l’autorégulation ont prospéré durant les trois dernières décennies. Initiés par le travail fécond de Locke, Latham et de leurs collègues qui ont souligné l’influence positive d’objectifs elairs et sollicitants sur les performances, de nombreux courants de recherche sont apparus pour étudier à la fois les déterminants et les conséquences des objectifs et des processus d’autorégulation sur les conduites et les variables dépendantes relatives au travail (voir par exemple Locke, Shaw, Saari, & Latham, 1981 ; Vancouver, 2000 pour une revue de questions). Vancouver et Day (2005) constatent que si les chercheurs en organisations ont tenté d’évaluer la validité externe et critérielle, ils se sont moins intéressés à la validité interne et de construction des variables‐clés et de concepts tels que les objectifs, la rétroaction, la divergence et l’efficacité personnelle. Dans le même ordre d’idées, Vancouver et Day (2004) concluent que les validations des interventions I/O fondées sur la perspective objectif/autorégulation détectent généralement des effcts positifs, mais que ces travaux sont insuffisants pour déterminer les dimensions spécifiques du processus objectif/autorégulation qui sont en rapport avec l’amélioration de la performance. Dans ce court article, j’aborde ces problèmes concemant la recherche sur les objectifs et l’autorégulation d’un triple point de vue: le progrès scientifique, les applications et les buts des investigations I/O. Over the past three decades, industrial/organisational (I/O) research on goals and self‐regulation has flourished. Beginning with the seminal work by Locke, Latham, and their colleagues showing the positive influence of difficult and specific goals on task performance, multiple streams of research have emerged to investigate both the determinants and consequences of goals and self‐regulation processes on work‐related behaviors and outcomes (see, e.g. Locke, Shaw, Saari, & Latham, 1981 ; Vancouver, 2000 , for reviews). In a review of this work, Vancouver and Day (2005 ) suggest that although organisational researchers have sought evidence for external and criterion‐related validity, less attention has been given to the construct and internal validity of key variables and concepts, such as goals, self‐efficacy, feedback, discrepancy, and self‐efficacy. In a related vein, Vancouver and Day (2005 ) conclude that although I/O intervention studies based on the goal/self‐regulation perspective show generally positive effects, such studies are insufficient for understanding how specific aspects of the goal/self‐regulation process relate to enhanced performance. In this short note, I consider these concerns about goal/self‐regulation research in I/O psychology from three perspectives: (1) scientific progress, (2) applications, and (3) the goals of I/O research.     

Book Reviews

Book reviewed in this article: Child development: Thinking about theories By Phillip Slee and Rosalyn Shute Disorders of learning in childhood (2nd edition) By Archie A. Silver and Rosa A. Hagin Growing minds ‐ An introduction to cognitive development By Stephanie Thornton Children of immigration By Carola Suárez‐Orozco and Mareclo M. Suárez‐Orozco The cultural nature of human development By Barbara Rogoff Dyslexia and literacy: Theory and practice Edited by Gavin Reid and Janice Wearmouth     

Fantasy,wishful thinking,and statistical hokuspokus. A rejoinder to De Raad and Ostendorf (1996)

De Raad and Ostendorf (1996) sharply criticize a paper of mine (Henss, 1995). However, their critique is seriously flawed. In this paper, I discuss some of the most important shortcomings of De Raad and Ostendorf's article.     

Suárez and the doctrine of the transcendentals

This article discusses Suárez's views concerning the transcendentals, that is, being and those attributes of it that extend to everything. In particular it explores Suárez's notion of transcendentality and the way in which he conceived the transcendental attributes of being are related to it. It makes two claims: First, that Suárez has an intensional, rather than an extensional understanding of transcendentality; and, second, that Suárez's understanding of truth and goodness, as expressing real extrinsic denominations based on real relations, appears to contain an inconsistency.I am grateful to Jane Bristol, John Doyle, and Scott MacDonald for their comments on an early draft of this paper.