This article presents a process account of some typicality effects and related similarity-dependent accuracy and response time phenomena that arise in the context of supervised concept acquisition. We describe Symbolic Concept Acquisition (SCA), a computational system that acquires and activates category prediction rules. In contrast to gradient representations, SCA performs by probing for prediction rules in a series of discrete steps. For learning new rules, it acquires general rules but then incrementally learns more specific ones. In describing SCA, we emphasize (...) its functionality in terms of accuracy and efficiency and motivate its design within the set of symbolic mechanisms and memory structures defined by the Soar architecture (Laird, Newell & Rosenbloom, 1987). For replicating human behavior, we first show how SCA exhibits some typicality effects in the course of learning responding faster and more accurately to more typical test examples. Then, using data from human experiments, we evaluate SCA's qualitative predictions on accuracy and response time on individual dataset instances. We show how SCA's predictions correlate with human data across three experimental conditions concerning the effect of instruction on learning strategy. (shrink)

We explored the consequences for learning through interaction with an educational microworld called Electric Field Hockey (EFH). Like many microworlds, EFH is intended to help students develop a qualitative understanding of the target domain, in this case, the physics of electrical interactions. Through the development and use of a computer model that learns to play EFH, we analyzed the knowledge the model acquired as it applied the game‐oriented strategies we observed physics students using. Through learning‐by‐doing on the standard sequence of (...) tasks, the model substantially improved its EFH playing ability; however, it did so without acquiring any new qualitative physics knowledge. This surprising result led to an experiment that compared students' use of EFH with standard‐goal tasks against two alternative instructional conditions, specific‐path and no‐goal, each justified from a different learning theory. Students in the standard‐goal condition learned less qualitative physics than did those in the two alternative conditions, which was consistent with the model. The implication for instructional practice is that careful selection and analysis of the tasks that frame microworld use is essential if these programs are to lead to the learning outcomes imagined for them. Theoretically, these results suggest a new interpretation for numerous empirical findings on the effectiveness of no‐goal instructional tasks. The standing “reduced cognitive load” interpretation is contradicted by the success of the specific‐path condition, and we offer an alternative knowledge‐dependent interpretation. (shrink)

This book updates and adds to the classic Social Movements of the Sixties and Seventies, showing how social movement theory has grown and changed.

This article reports four subliminal perception experiments using the relationship between confidence and accuracy to assess awareness. Subjects discriminated among stimuli and indicated their confidence in each discrimination response. Subjects were classified as being aware of the stimuli if their confidence judgments predicted accuracy and as being unaware if they did not. In the first experiment, confidence predicted accuracy even at stimulus durations so brief that subjects claimed to be performing at chance. This finding indicates that subjects's claims that they (...) are ''just guessing'' should not be accepted as sufficient evidence that they are completely unaware of the stimuli. Experiments 2-4 tested directly for subliminal perception by comparing the minimum exposure duration needed for better than chance discrimination performance against the minimum needed for confidence to predict accuracy. The latter durations were slightly but significantly longer, suggesting that under certain circumstances people can make perceptual discriminations even though the information that was used to make those discriminations is not consciously available. (shrink)

The traditional view of divine conservation holds that it is simply a continuation of the initial act of creation. In this essay, I defend the continuous-creation tradition against William Lane Craig's criticism that continuous creation fundamentally misconstrues the intuitive distinction between creation and conservation. According to Craig, creation is the unique causal activity of bringing new patient entities into existence, while conservation involves acting upon already existing patient entities to cause their continued existence. I defend continuous creation by (...) challenging Craig's intuitive distinction and by showing that the alternative account of creation and conservation he bases upon it is fraught with serious internal difficulties. (shrink)

The question of whether faith in God is reasonable is of renewed interest in today’s academy. In light of this interest, as well as the rise of militant religion and terrorism and the emergent reaction by neo-atheism, this volume considers this important question from the views of contemporary scientists, philosophers, and in a more novel fashion, of rhetoricians. It is comprised of a public debate between William Lane Craig, supporting the position that faith in God is reasonable and Alex (...) Rosenberg, arguing against that position. Scholars in the aforementioned fields then respond to the debate, representing both theistic and atheistic positions. The book concludes with rejoinders from Craig and Rosenberg. (shrink)

We consider embeddings of structures which preserve spectra: if g: M → S with S computable, then M should have the same Turing degree spectrum (as a structure) that g(M) has (as a relation on S). We show that the computable dense linear order L is universal for all countable linear orders under this notion of embedding, and we establish a similar result for the computable random graph G. Such structures are said to be spectrally universal. We use our results (...) to answer a question of Goncharov, and also to characterize the possible spectra of structures as precisely the spectra of unary relations on G. Finally, we consider the extent to which all spectra of unary relations on the structure L may be realized by such embeddings, offering partial results and building the first known example of a structure whose spectrum contains precisely those degrees c with c′ ≥T 0″. (shrink)

Analytical Thomism is a recent label for a newer kind of approach to the philosophical and natural theology of St Thomas Aquinas. It illuminates the meaning of Aquinas's work for contemporary problems by drawing on the resources of contemporary Anglo-Saxon analytical philosophy, the work of Frege, Wittgenstein, and Kripke proving particularly significant. This book expands the discourse in contemporary debate, exploring crucial philosophical, theological and ethical issues such as: metaphysics and epistemology, the nature of God, personhood, action and meta-ethics. All (...) those interested in the thought of St Thomas Aquinas, and more generally contemporary Catholic scholarship, problems in philosophy of religion, and contemporary metaphysics, will find this collection an invaluable resource. (shrink)

Programs in quantum gravity often claim that time emerges from fundamentally timeless physics. In the semiclassical time program time arises only after approximations are taken. Here we ask what justifies taking these approximations and show that time seems to sneak in when answering this question. This raises the worry that the approach is either unjustified or circular in deriving time from no–time.

A twenty‐person working group convened to discuss the ethical and policy considerations of the controversial intervention called “growth attenuation,” and if possible to develop practical guidance for health professionals. A consensus proved elusive, but most of the members did reach a compromise.

In this essay we argue that the current social and ethical structure in the Open Source Software Community stem from its roots in academia. The individual developers experience a level of autonomy similar to that of a faculty member. Furthermore, we assert that the Open Source Software Community’s social structure demands benevolent leadership. We argue that it is difficult to pass off low quality open source software as high quality software and that the Open Source development model offers strong accountability. (...) Finally, we argue that Open Source Software introduces ethical challenges for universities and the software development community. (shrink)

Purpose This paper aims to explore the ethical and social impact of augmented visual field devices, identifying issues that AVFDs share with existing devices and suggesting new ethical and social issues that arise with the adoption of AVFDs. Design/methodology/approach This essay incorporates both a philosophical and an ethical analysis approach. It is based on Plato’s Allegory of the Cave, philosophical notions of transparency and presence and human values including psychological well-being, physical well-being, privacy, deception, informed consent, ownership and property and (...) trust. Findings The paper concludes that the interactions among developers, users and non-users via AVFDs have implications for autonomy. It also identifies issues of ownership that arise because of the blending of physical and virtual space and important ways that these devices impact, identity and trust. Practical implications Developers ought to take time to design and implement an easy-to-use informed consent system with these devices. There is a strong need for consent protocols among developers, users and non-users of AVFDs. Social implications There is a social benefit to users sharing what is visible on their devices with those who are in close physical proximity, but this introduces tension between notions of personal privacy and the establishment and maintenance of social norms. Originality/value There is new analysis of how AVFDs impact individual identity and the attendant ties to notions of ownership of the space between an object and someone’s eyes and control over perception. (shrink)

Care is more than dispensing pills or cleaning beds. It is about responding to the entire patient. What is called “bedside manner” in medical personnel is a quality of treating the patient not as a mechanism but as a being—much like the caregiver—with desires, ideas, dreams, aspirations, and the gamut of mental and emotional character. As automata, answering an increasing functional need in care, are designed to enact care, the pressure is on their becoming more humanlike to carry out the (...) function more effectively. The question becomes not merely whether the care automaton can effect good bedside manner but whether the patient’s response is not feeling deceived by the humanlikeness. It seems the device must be designed either to effect explicit mere human-“likeness,” thus likely undermining its bedside-manner potential, or to fool the patient completely. Neither option is attractive. This article examines the social problems of designing maximally humanlike care automata and how problems may start to erode the human rights of users/patients. The article then investigates the alternatives for dealing with this problem, whether by industrial and professional self-regulation or public-policy initiatives. It then frames the problem in the broader historical perspective in terms of previous bans, moratoria, and other means of control of hazardous and potentially rights-violating techniques and materials. (shrink)

Vaccination complacency occurs when perceived risks of vaccine-preventable diseases are sufficiently low so that vaccination is no longer perceived as a necessary precaution. Disease outbreaks can once again increase perceptions of risk, thereby decrease vaccine complacency, and in turn decrease vaccine hesitancy. It is not well understood, however, how change in perceived risk translates into change in vaccine hesitancy. -/- We advance the concept of vaccine propensity, which relates a change in willingness to vaccinate with a change in perceived risk (...) of infection—holding fixed other considerations such as vaccine confidence and convenience. (shrink)

Crispin Wright is widely recognised as one of the most important and influential analytic philosophers of the twentieth and twenty-first centuries. This volume is a collective exploration of the major themes of his work in philosophy of language, philosophical logic, and philosophy of mathematics. It comprises specially written chapters by a group of internationally renowned thinkers, as well as four substantial responses from Wright. In these thematically organized replies, Wright summarizes his life's work and responds to the contributory essays collected (...) in this book. In bringing together such scholarship, the present volume testifies to both the enormous interest in Wright's thought and the continued relevance of Wright's seminal contributions in analytic philosophy for present-day debates. (shrink)

An artificial general intelligence (AGI) might have an instrumental drive to modify its utility function to improve its ability to cooperate, bargain, promise, threaten, and resist and engage in blackmail. Such an AGI would necessarily have a utility function that was at least partially observable and that was influenced by how other agents chose to interact with it. This instrumental drive would conflict with the strong orthogonality thesis since the modifications would be influenced by the AGI’s intelligence. AGIs in highly (...) competitive environments might converge to having nearly the same utility function, one optimized to favorably influencing other agents through game theory. Nothing in our analysis weakens arguments concerning the risks of AGI. (shrink)

John Heil’s new book ranges over many of the major topics in metaphysics, including substance, properties, causation, space, time, parts and wholes, modality, essence, agency, and consciousness. It has interesting things to say about all of the issues it discusses, but there are three topics that are especially prominent in the book, and which help to organize the discussion. These all flow from the differences between our everyday, commonsense understanding of reality and the representations that are offered by science.

The theory of boundary organizations was developed to address an important group of institutions in American society neglected by scholarship in science studies and political science. The long-term stability of scientific and political institutions in the United States has enabled a new class of institutions to grow and thrive as mediators between the two. As originally developed, this structural feature of these new institutions—that is, their location on the boundary between science and politics—dominated theoretical frame-works for explaining their behavior. Applying (...) the theory of boundary organizations to international society requires a refocusing of some of the theory’s central features, however. In this article, I introduce a new framework—hybrid management—to explain the activities of boundary organizations in the more complex, contingent, and contested settings of global politics. I develop the framework of hybrid management using the specific example of the U.N. Framework Convention on Climate Change’s Subsidiary Body for Scientific and Technological Advice. (shrink)

The Aristotelian-Thomist claim is that external actions can be morally evaluated when they are voluntary (which includes being based on reasonably accurate knowledge of what an agent is doing), absent which, in effect, we evaluate outcomes, not acts. Also, in the Aristotelian-Thomist tradition the internal act of the will is paramount. These claims contrast with some current theorizing, e.g., by Judith Jarvis Thomson, that morally evaluates actions separately from agents, downplaying the internal act. Taking cases from current authors that revolve (...) around ignorance of key facts, I critique their theorizing on the basis of the nature of agency, the nature of abstraction, the moral language we use in describing acts, the need for reasonably complete descriptions of acts, and the tendency of act evaluations to “leak” into agent evaluations in objective theories. I then describe how Thomas Aquinas’s account of moral evaluation avoids these problems and provides a superior, multi-dimensional framework for moral evaluation. (shrink)

As software developers design artificial agents , they often have to wrestle with complex issues, issues that have philosophical and ethical importance. This paper addresses two key questions at the intersection of philosophy and technology: What is deception? And when is it permissible for the developer of a computer artifact to be deceptive in the artifact’s development? While exploring these questions from the perspective of a software developer, we examine the relationship of deception and trust. Are developers using deception to (...) gain our trust? Is trust generated through technological “enchantment” warranted? Next, we investigate more complex questions of how deception that involves AAs differs from deception that only involves humans. Finally, we analyze the role and responsibility of developers in trust situations that involve both humans and AAs. (shrink)

Fiduciary law is one of the most important areas of private law, governing a wide range of relationships that affect people in their daily lives. These new and innovative essays explore the foundations of fiduciary relationships and the duties fiduciaries owe to their beneficiaries.

We contend that software developers have an ethical responsibility to strive for reliable software. We base that obligation on long standing engineering traditions that place the public good as a central tenant and on the professional relationship between a software developer and the users of the software developed.

In this paper we describe two approaches to the revision of probability functions. We assume that a probabilistic state of belief is captured by a counterfactual probability or Popper function, the revision of which determines a new Popper function. We describe methods whereby the original function determines the nature of the revised function. The first is based on a probabilistic extension of Spohn's OCFs, whereas the second exploits the structure implicit in the Popper function itself. This stands in contrast with (...) previous approaches that associate a unique Popper function with each absolute (classical) probability function. We also describe iterated revision using these models. Finally, we consider the point of view that Popper functions may be abstract representations of certain types of absolute probability functions, but we show that our revision methods cannot be naturally interpreted as conditionalization on these functions. (shrink)

In this paper data from a Tanzanian horticultural population are used to assess whether mother’s kin network size predicts several measures of children’s health and well-being, and whether any kin effects are modified by household socioeconomic status. This hypothesis is further tested with a questionnaire on maternal attitudes towards kin. Results show small associations between measures of maternal kin network size and child mortality and children’s growth performance. Together these results suggest that kin positively influence child health, but the effects (...) are small and it is unlikely that the high prevalence of undernutrition observed in this setting is influenced by the availability of kin. (shrink)

There is a growing literature on the concept of e-trust and on the feasibility and advisability of “trusting” artificial agents. In this paper we present an object-oriented model for thinking about trust in both face-to-face and digitally mediated environments. We review important recent contributions to this literature regarding e-trust in conjunction with presenting our model. We identify three important types of trust interactions and examine trust from the perspective of a software developer. Too often, the primary focus of research in (...) this area has been on the artificial agents and the humans they may encounter after they are deployed. We contend that the humans who design, implement, and deploy the artificial agents are crucial to any discussion of e-trust and to understanding the distinctions among the concepts of trust, e-trust and face-to-face trust. (shrink)

The thesis of the present note is that the resemblance between Bradwardine’s highly instructive definition of truth, and what emerges from Tarski’s method of defining truth, is much closer than Read’s discussion reveals. Each approach, however, has serious defects.

In this paper I argue that creative and critical thinking operate in tandem in the mind as a purposeful dialectic of generative and evaluative dimensions of sense-making. The complementariness of these two forms of thought are dramatized through a case study in an innovative literature-history class, by tracing thc development of critical and creative thinking in one students process of authoring. In the class the teachers mediated students’ thinking by engaging them in open-forum conversation about varied cultural-historical perspectives and then (...) providing strategies for both generating interpretations and questioning/critiquing them. As multiple conflicting perspectives from literature and history interplayed in the class, the student was prompted to construct a point of view by considering opposing lines of thought in a dialogue of creative and critical thinking. He appropriated these new tools, internalizing strategies for and a disposition toward creative and critical thinking to make sense of complex texts and social issues. Vygotsky’s notions of problem-solving, play, mediation, ZPD, and internalization are used to explain how student thinking developed in this context. (shrink)

Martha A. Hall’s artists’ books documenting her experience of living with breast cancer offer future health professionals a unique opportunity to sit in the patient’s position of vulnerability and fear. Hall’s books have become a cornerstone of our medical humanities pedagogy at the Maine Women Writers Collection because of their emotional directness and their impact on readers. This essay examines the ways that Hall’s call for conversation with healthcare providers is enacted at the University of New England and provides a (...) model for how such works might be used at other educational institutions to encourage empathy between practitioners and patients by engaging in conversations about anger, fear, and other common reactions to life-threatening illness. We explore the unruly nature of Martha A. Hall’s narratives of illness and care, as well as how the form of the books themselves engages the reader in a deep relationship with Hall’s personal pain and her humanity itself. We explore, too, the cumulative effect of these powerful books on readers who handle them regularly, as we do in our roles as professor and archivist. (shrink)

_ Source: _Volume 10, Issue 1, pp 51 - 75 History occupies a somewhat awkward position in the work of Gilles Deleuze and Félix Guattari. Although they often criticise history as a practice and advance alternatives that are explicitly anti-historical, such as ‘nomadology’ and ‘geophilosophy’, their scholarship is nevertheless littered with historical encounters and deeply influenced by historians such as Fernand Braudel. One of Deleuze and Guattari’s more significant engagements with history occurs through their reading and theory of universal history. (...) In this paper I will explicate and critically analyse the nature of this universal history vis-à-vis its most pertinent counterpoint: Hegel’s philosophy of world history. In contrast to Hegel’s form of historicism, which universalizes by virtue of a unitary and totalizing force, Deleuze and Guattari develop a universalizing mechanism that is strictly devoid of any privileged essence. Following, Deleuze and Guattari’s form of universal history is marked above all by contingency as opposed to necessity. In this paper I will show precisely how. I will also go on to demonstrate how Deleuze and Guattari’s universal history offers the promise of an historical ontology commensurate with the processes of creativity and becoming, provided that appropriate steps are taken to reaffirm the radical contingency at its heart. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:BOOK REVIEWS 477 (p. 32), although some might consider him to have been an important historian of logic. I am not certain that citing Carnap and Heideggar (p. 75) can do much to clarify Vires. When one reads 'Henrique Estienne' and "Hipotiposes pirronicas" (p. 266) in an Italian book he is a bit taken aback and wonders whether the author has done his homework. The writer missed a golden (...) opportunity to connect Galileo to the tradition, for his still unpublished Quaestiones on logic and the De motu (both written before 1600) have many interesting comments which tie in directly with the material developed in this volume. This could have provided an excellent bridge to the next'century, when the analytic method began to take a more central role in scientific and methodological discussions. There is still room for a number of studies on the evolution of the analytic method during the Renaissance. Unfortunately Crescini's study barely scratches the surface of this immense subject. Let us hope that his book will at least have the effect of encouraging others to treat the matter with more care, in greater depth, and more exhaustively. The volume is provided with a preface by Giorgio Radetti, who claims more for it than it actually provides, as well as noting that it is the first part of a more comprehensive study by the same author on the formation of the analytic method in Cartesian philosophy (p. 5). The book has a useful index, but unfortunately no bibliography. CHARLESB. ScxiMrrr The University of Leeds Le thomisme et la pens#e italienne de la Renaissance. By Paul Oskar Kristeller. Conference Albert-le-Grand 1965. (Montr6ah Institut d'~tudes m~di~vales, and Paris: Vrin, 1967. Pp. 287. $6) Surprisingly little is known about the later history of Thomism. This brief but very rich lecture by Professor Kristeller, renowned historian of Italian Renaissance philosophy, examines one period in the later career of St. Thomas' thought. This study, based chiefly on unpublished source material, shows that Thomas was very much present to both the humanists and to the academic philosophers during the Renaissance. Such leading humanists as Lorenzo Valla, Giovanni Pico della Mirandola, and Marsilio Ficino, quote St. Thomas frequently and with approval. Even the unfavorable attitudes of Ermolao Barbaro or Baptista Mantuanus show that Thomas was already the most celebrated of mediaeval philosophers. The professors of philosophy at Italian universities, such as Pierre Pomponazzi, speak of Thomas with great respect and regard his theology as in conformity with the truths of faith, even when they reject his philosophy as being in disaccord with the authentic teaching of Aristotle. St. Thomas made a continuous contribution to the development of Renaissance theology and philosophy. Yet the principal Italian thinkers did not follow him strictly nor fall under his exclusive influence. Thomas is merely one of the most important sources, not the prevailing influence, in Renaissance thought. Ficino, for example, is,178 HISTORY OF PHILOSOPHY in accord with Thomas on certain important points, but his own theology is more in the spirit of Plato and Augustine. Professor Kristeller's vast learning is at the service of admirably balanced conclusions. Not everyone will agree with all his interpretations; Ficino perhaps did not imagine himself to be "constructing a system of philosophy" (p. 96) since the very title of his work, Theologia platonica, suggests that he continues, with new materials, the labor of mediaeval theolo#ans. And Ficino's doctrine of the continuity of the supernatural life of the soul in this world and the next (p. 120) seems to be completely in accord with Thomas. But the author's very careful scholarly method and sound general conclusions are beyond criticism. Two hitherto unpublished Latin texts are printed in critical edition at the end of the French lecture, the Opus aureum in Thomistas by Baptists Mantuanus, which is anti-Thomas, and the Opusculum ad Laurentium Medicem on beatitude, by Vincentius Bandellus, which is pro-Thomas. Like Professor Kristeller's fine lecture, these new texts are a permanent contribution to scholarship. PAUL J. W. MILLER University of Colorado The Anatomy of Leviathan. By F. S. McNeilly. (New York: St. Martin's Press, 1968. Pp... (shrink)

The organization of the modern police is a contingent social choice about how to engage in the process of governance when regulating public order on the street. The police are the agency authorized to act upon the state’s duty to govern in response to public emergencies. The duty to govern exists when there is some urgent social need that could be resolved by acting, and some person or institution has the resources and ability to do that act. The duty is (...) impersonal: anybody with the relevant skill set is obligated to act to address the relevant need. Problems can arise, however, when too few individuals respond or too many compete to resolve the need. A core feature of governance, then, is to create publicly recognized institutions with special authority, resources, and abilities to address the demand for public services when someone needs to step in and do something to the exclusion of ordinary members of the public. Police agencies are further characterized by various powers and duties. These powers are normative powers to change the legal status of the people with whom the police interact, rather than physical powers to use some amount of violence to coerce individuals to comply with police demands. The core powers of the police include the powers to make authoritative determinations about how to respond to an emergency, to detain individuals, and to trespass upon their person or property, along with conjoined duties to govern, to protect, and to intervene at risk to themselves. The dominant approach attempts to distinguish the police from other institutions using the police ability to use violent to respond to public emergencies. On the governance based model of the police, however, the ability to use force is simply one of the resources available to the police, and does not mark them off as different from other public governance agencies. (shrink)

David Miller outlines the central ideas of Michael Walzer's Spheres of Justice, focusing on the notions of political community, social goods, and complex equality. He critically examines Walzer's reliance on the interpretative method in determining the requirements of distributive justice. Miller argues that the concept of complex equality needs to be interpreted alongside that of equal citizenship.

Evan’s Fales’s idiosyncratic interpretation of the origin of the empty tomb narrative in the gospels of the New Testament is shown to be flawed in taking pagan mythology rather than Palestinian Judaism as the proper interpretive context for the life of Jesus.

Solving the problem of the negative impact of science and technology on society and the environment is indeed the greatest challenge of our time. To date, this challenge has been taken up by few professional philosophers of science, making this volume a welcome contribution to the general debate. Agazzi’s treatment involves viewing modern science and technology as each constituting _systems._ Against the background of this approach, he provides a penetrating analysis of science, technology and ethics, and their interrelations. Agazzi sees (...) the solution to the problem as lying in the _moral _sphere and including a multilateral assumption of _responsibility_ on the part of decision makers both within and outside of science. (shrink)

In chapter 8 of Miller 2003, I argued against the idea that Jackson and Pettit's notion of program explanation might help Sturgeon's non-reductive naturalist version of moral realism respond to the explanatory challenge posed by Harman. In a recent paper in the AJP[Nelson 2006, Mark Nelson has attempted to defend the idea that program explanation might prove useful to Sturgeon in replying to Harman. In this note, I suggest that Nelson's argument fails.

This essay argues that the affective component inherent in the enthymeme is the essence of aristotle's concept of the enthymeme as practical reasoning. 'affective component' refers to emotions and feelings. The three proofs of the thesis are the etymology of 'enthymeme', Aristotle's works on human action and practical wisdom, And aristotle's rhetoric. These sources show the inherent relation between enthymemes and phronesis, Or practical reasoning, Not nous, Or abstract intellect.