Lewis signaling games illustrate how language might evolve from random behavior. The probability of evolving an optimal signaling language is, in part, a function of what learning strategy the agents use. Here we investigate three learning strategies, each of which allows agents to forget old experience. In each case, we find that forgetting increases the probability of evolving an optimal language. It does this by making it less likely that past partial success will continue to reinforce suboptimal practice. The learning (...) strategies considered here show how forgetting past experience can promote learning in the context of games with suboptimal equilibria. (shrink)

We consider the efficacy of various forms of reinforcement learning with punishment in evolving linguistic conventions in the context of Lewis-Skyrms signalling games. We show that the learning strategy of reinforcement with iterative punishment is highly effective at evolving optimal conventions in even complex signalling games. It is also robust and can be easily extended to a self-tuning variety of reinforcement learning. We briefly discuss some of the virtues of reinforcement with iterative punishment and how it may be related to (...) learning in nature. (shrink)

The use of deception in medical care is highly suspect in this country. Yet there is one condition for which deception is often used as a diagnostic tool. Nonepileptic seizures, a psychiatric condition in which emotional or psychological conflicts manifest themselves unconsciously through bodily symptoms, are currently diagnosed by a procedure called “provocative saline infusion.” The test is fundamentally deceptive, requiring the physician to intentionally and directly lie to the patient, causing the patient to believe that the administered solution caused (...) his seizures. Without such deception, the test might be useless. (shrink)

Over the last two decades, scientific accounts of religion have received a great deal of scholarly and popular attention both because of their intrinsic interest and because they are widely as constituting a threat to the religion they analyse. The Believing Primate aims to describe and discuss these scientific accounts as well as to assess their implications. The volume begins with essays by leading scientists in the field, describing these accounts and discussing evidence in their favour. Philosophical and theological reflections (...) on these accounts follow, offered by leading philosophers, theologians, and scientists. This diverse group of scholars address some fascinating underlying questions: Do scientific accounts of religion undermine the justification of religious belief? Do such accounts show religion to be an accidental by-product of our evolutionary development? And, whilst we seem naturally disposed toward religion, would we fare better or worse without it? Bringing together dissenting perspectives, this provocative collection will serve to freshly illuminate ongoing debate on these perennial questions. (shrink)

The theme of this book is the complex moral psychology of forgiving and remembering in both personal and political contexts. It offers an original account of the moral psychology of interpersonal forgiveness and explores its role in transitional societies. The book also examines the symbolic moral significance of memorialization in these societies and reflects on its relationship to forgiveness.

This work introduces the ACTWith model of moral cognition. This is a model of conscience and conscientious agency, inspired by Socratic philosophy, neurology and artificial intelligence. The ACTWith model is a synthesis across these disciplines, integrating ancient and contemporary insights into the human condition, while distilling this synthesis into a practicable dynamic simplified via architectural paradigms imported from theories of computational models of human learning. It was developed in response to the need in these fields for a clear articulation of (...) conscience. In the world at large, conscience is often referenced, yet hardly understood. This work fills this gap. (shrink)

This chapter considers two types of fine‐tuning, those dealing with the initial conditions of the universe and those based on fixed parameters. Three approaches have been taken to argue that fine‐tuning does not need any special explanation. The first is an appeal to coincidence. The second is that the data are biased by our own observations. The third has to do with the nature of probability itself. The chapter assesses each of these objections in detail. Many naturalistic explanations have been (...) offered for fine‐tuning. The chapter considers the three most important ones. The first is that future discoveries might show that fine‐tuning was not improbable after all. The second is that other life‐permitting ranges for the fine‐tuned constants (FTCs) might exist, allowing for exotic forms of life unlike ours. The third is that we might live in a multiverse of many different universes all with different values of FTCs. (shrink)

The change in shape of the C. elegans embryo from an ovoid ball of cells into a worm-shaped larva is driven by three events within the cells of the hypodermis (epidermis): (1) intercalation of two rows of dorsal cells, (2) enclosure of the ventral surface by hypodermis, and (3) elongation of the embryo. While the behavior of the hypodermal cells involved in each of these processes differs dramatically, it is clear that F-actin and microtubules have essential functions in each of (...) these processes, whereas contraction of actomyosin structures appears to be involved specifically in elongation. Molecular analysis of these processes is revealing components specific to C. elegans as well as components found in other systems. Since C. elegans hypodermal cells demonstrate dramatically different behaviors during intercalation, enclosure and elongation, the study of cytoskeletal dynamics in these processes may reveal both unique and conserved activities during distinct epithelial morphogenetic movements. BioEssays 23:12–23, 2001. © 2001 John Wiley & Sons, Inc. (shrink)

_Explores how the thought of Leo Strauss amounts to a model for thinking about the connection between philosophy, Jewish thought, and history._.

This essay explores the significance of Agamben’s sparse references to medieval Jewish thinkers (that is, the Rishonim) and raises the question as to whether the modern interpretive horizon of “history” is adequate for providing an understanding of these thinkers.

The object of this essay is to demonstrate a logical connection between beliefs and values. It is argued that such a connection can be established only if one keeps in mind the question: What is minimally required in order that it makes sense to speak of beliefs and values at all? Thus, the concept of minimal rationality is indispensable to the task at hand. A particular example of a logical connection between a belief and a value is examined, which leads (...) to a formal rule (Rule of Minimal Rationality) which expresses in general the logical connection between beliefs and values. This rule is elaborated to include attempted activities as well as activities simpliciter, activities having been discovered as essential to any logical connection between beliefs and values. Finally, some interesting implications and promising applications of the Rule of Minimal Rationality are outlined. (shrink)

In a century dominated by the exacting methods and dramatic successes of science, it is difficult to imagine an informed contemporary religious believer never shaken by the doubt that his or her most sacred ideas are atavisms to a benighted age, vain and empty fantasies. To such a believer, Freud's late monograph, The Future of an Illusion , with its warm, solicitous tone, but relentless scepticism, must seem the patient knell of his or her worst fears. For here Freud uses (...) his dialectical skill and his psychoanalysis to augment motives for self-doubt at least as old as Abraham: Perhaps the most cherished of my beliefs are a kind of madness, a condition I do not recognize because it is so widely shared. Perhaps like the madman bewitched by the tapestry of his delusions, I hold fast to my faith only because I could not endure the threadbare fabric of a life without it. But it is not as though the religionist is utterly without defence against this source of doubt, nor that the familiar defence is without considerable prima facie force against Freud. For when sceptics such as Freud turn their account of the origin of religious faith into a case against the truth of religious claims, the believer can attack this line with an unassailable axiom: No examination of the motives for a belief is relevant to an assessment of its truth. To assume otherwise is to commit the genetic fallacy. The question I want to deal with here is whether the religious believer should rest content with this rejoinder to Freud. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:The Paradox of Subjectivity: The Self in the Transcendental TraditionJeffrey EdwardsDavid Carr. The Paradox of Subjectivity: The Self in the Transcendental Tradition. New York/Oxford: Oxford University Press, 1999. Pp. xii + 150. Cloth, $35.00.This book presents a response to contemporary attacks on the concept of the subject. Carr investigates the historical background to the criticisms of the "Metaphysics of the Subject" that are found in French post-structuralist thought (...) and in critical theories descended from the Frankfurt School. In explaining this background, he targets the widely held assumption that the history of modern philosophy can best be understood in terms of a fundamentally unified conception of the subject and subjectivity that unfolds inevitably from Descartes and culminates in twentieth-century phenomenology and existentialism. Those who share this assumption fail to recognize the significance of what Husserl (in the Crisis of European Sciences) called the "paradox of subjectivity," which derives from the necessity of understanding the knowing subject both as a subject for the world and as an object in the world.The origins of contemporary interpretations of the metaphysics of the subject are found primarily in Heidegger's thought. Carr thus devotes the first chapter of this study to the critical assessment of Heidegger's view of modern metaphysics starting with Descartes. For Heidegger, Descartes took over the dominant concept of substance from traditional ontology and transferred it to the human subject. The Cartesian subject, then, was revealed as an underlying hypokeimenon that absorbs or overpowers the world by reducing it to the representational contents of the thinking thing. Moreover, Heidegger maintained that modern thinkers did not go beyond the reductive conception of subjectivity intrinsic to the Cartesian metaphysics of substance. This Heideggerian judgment applies to the major modern thinkers. Even Kant and Husserl figure as representatives of a tradition in which "the knowing subject takes the role of substance; everything is reduced to first properties, whether as immanent in consciousness, object for the subject, or, as in transcendental philosophy, construct and product of subjective activity" (Carr, 31).In chapters 2-4, Carr argues that the Heideggerian interpretation is inadequate with respect to Kant and Husserl. In supporting this position, Carr emphasizes the close affinities between Kant's and Husserl's conceptions of objectivity for consciousness and between their portrayals of subject and self. Specifically, Carr argues (1) that both thinkers were committed to the representationalist view of cognition that is typical of other major modern philosophers; and (2) that both presented parallel, and indeed unifiable, accounts of the relationship between the transcendental and the empirical self.The key to explaining the fundamental agreement between Kant's and Husserl's transcendental theories lies in the concept of intentionality. There are, of course, significant differences between Husserl's phenomenological method and the procedure of inquiry into the possibility conditions of objective experience that Kant follows in the Critique of Pure Reason. Still, Husserl's portrayal of the intentional character of consciousness provides the basis for understanding how Kant's account of transcendental apperception and the original synthetic unity of self-consciousness grounds a non-representationalist theory of the subject's relation to a world of objects. Husserl's portrayal of intentionality also enables us to see how Kant's concept of transcendental [End Page 609] apperception allows for a description of the empirical self as something that is part of the objective world. Conversely, the Kantian distinction between the transcendental and the empirical self, or subject, sheds light on the sense of the distinction that Husserl draws between transcendental and natural reflection. In natural reflection, I "appear to myself as an empirical subject within a world to which I relate in causal-bodily and intentional [i.e., purposive]-motivational ways" (89). On the other hand, the consciousness of self at issue in transcendental reflection involves my awareness of the meaning-constituting cognitive accomplishments by which I am consciousness of the world as the horizon of possible objects and, at the same time, as something transcendent to consciousness.It is Husserl's conception of intentionality, combined with Kant's understanding of the transcendental-empirical distinction, that allows us to grasp the full significance of the paradox... (shrink)

This paper takes up the claim, made in some Buddhist texts, that one can transcend morality. The author distinguishes a weak and a strong sense in which this might be so, and explicates the strong sense in terms of Strawson's notion of presupposition.

This case study details a request from a patient family member who calls our service without an articulated ethical dilemma. The issue that arose involved the conflict between continuing further medical interventions versus transitioning to supportive or palliative care and transferring the patient home. Beyond the resolution of the ethical dilemma, this narrative illustrates an approach to ethics consultation that seeks practical resolution of ethical dilemmas in alignment with patient goals and values. Importantly, the family’s suffering is addressed through a (...) relationship driven, humanistic approach that incorporates elements of compassion, empathy and dialog. (shrink)

At the beginning of the series, a dozen young women are introduced as potential mates for the eligible young bachelor. The audience accompanies the couples on their limo-escorted dates, meets the bachelor's family and friends, listens to their evaluation of the bride, and watches expectantly as the smiling Prince Charming singles out a few finalists for his attention. As the weeks pass by, one by one, tearful young women are dismissed from the show as the presentation of the final rose (...) that signifies singular devotion draws near. In the end, only two young women remain, and only one can receive…. (shrink)