Why does performing certain tasks cause the aversive experience of mental effort and concomitant deterioration in task performance? One explanation posits a physical resource that is depleted over time. We propose an alternative explanation that centers on mental representations of the costs and benefits associated with task performance. Specifically, certain computational mechanisms, especially those associated with executive function, can be deployed for only a limited number of simultaneous tasks at any given moment. Consequently, the deployment of these computational mechanisms carries (...) an opportunity cost – that is, the next-best use to which these systems might be put. We argue that the phenomenology of effort can be understood as the felt output of these cost/benefit computations. In turn, the subjective experience of effort motivates reduced deployment of these computational mechanisms in the service of the present task. These opportunity cost representations, then, together with other cost/benefit calculations, determine effort expended and, everything else equal, result in performance reductions. In making our case for this position, we review alternative explanations for both the phenomenology of effort associated with these tasks and for performance reductions over time. Likewise, we review the broad range of relevant empirical results from across sub-disciplines, especially psychology and neuroscience. We hope that our proposal will help to build links among the diverse fields that have been addressing similar questions from different perspectives, and we emphasize ways in which alternative models might be empirically distinguished. (shrink)

Why does performing certain tasks cause the aversive experience of mental effort and concomitant deterioration in task performance? One explanation posits a physical resource that is depleted over time. We propose an alternative explanation that centers on mental representations of the costs and benefits associated with task performance. Specifically, certain computational mechanisms, especially those associated with executive function, can be deployed for only a limited number of simultaneous tasks at any given moment. Consequently, the deployment of these computational mechanisms carries (...) an opportunity cost – that is, the next-best use to which these systems might be put. We argue that the phenomenology of effort can be understood as the felt output of these cost/benefit computations. In turn, the subjective experience of effort motivates reduced deployment of these computational mechanisms in the service of the present task. These opportunity cost representations, then, together with other cost/benefit calculations, determine effort expended and, everything else equal, result in performance reductions. In making our case for this position, we review alternative explanations for both the phenomenology of effort associated with these tasks and for performance reductions over time. Likewise, we review the broad range of relevant empirical results from across sub-disciplines, especially psychology and neuroscience. We hope that our proposal will help to build links among the diverse fields that have been addressing similar questions from different perspectives, and we emphasize ways in which alternative models might be empirically distinguished. (shrink)

Context: Although ethics consultation is commonplace in United States (U.S.) hospitals, descriptive data about this health service are lacking. Objective: To describe the prevalence, practitioners, and processes of ethics consultation in U.S. hospitals. Design: A 56-item phone or questionnaire survey of the "best informant" within each hospital. Participants: Random sample of 600 U.S. general hospitals, stratified by bed size. Results: The response rate was 87.4%. Ethics consultation services (ECSs) were found in 81% of all general hospitals in the U.S., and (...) in 100% of hospitals with more than 400 beds. The median number of consults performed by ECSs in the year prior to survey was 3. Most individuals performing ethics consultation were physicians (34%), nurses (31%), social workers (11%), or chaplains (10%). Only 41% had formal supervised training in ethics consultation. Consultation practices varied widely both within and between ECSs. For example, 65% of ECSs always made recommendations, whereas 6% never did. These findings highlight a need to clarify standards for ethics consultation practices. (shrink)

Robert Myers presents an original moral theory which charts a course between the extremes of consequentialism and contractualism. He puts forward a radically new case for the existence of both agent-neutral and agent-relative values, and gives an innovative answer to the question how such disparate values can be weighed against each other. Practical judgement is shown to be guided in this by two very different ideals: an ideal of cooperation, which is held to shape the content of morality's (...) demands, and one of self-governance, which is held to determine the nature of reason's requirements. Examination of the ideal of cooperation reveals that principles of impartial beneficence and rights protecting individual freedoms are equally fundamental to morality. Examination of the ideal of self-governance reveals that morality's dictates, though not necessarily overriding, are always in an important sense inescapable. The result is a theory of morality which combines a balanced account of its content with a ringing affirmation of its authority. (shrink)

According to many commentators, Davidson’s earlier work on philosophy of action and truth-theoretic semantics is the basis for his reputation, and his later forays into broader metaphysical and epistemological issues, and eventually into what became known as the triangulation argument, are much less successful. This book by two of his former students aims to change that perception. In Part One, Verheggen begins by providing an explanation and defense of the triangulation argument, then explores its implications for questions concerning semantic normativity (...) and reductionism, the social character of language and thought, and skepticism about the external world. In Part Two, Myers considers what the argument can tell us about reasons for action, and whether it can overcome skeptical worries based on claims about the nature of motivation, the sources of normativity and the demands of morality. The book reveals Davidson’s later writings to be full of innovative and important ideas that deserve much more attention than they are currently receiving. (shrink)

This book brings together a wide range of innovative reflections on the pivotal role that Davidson’s concept of agency plays in his later philosophy and its impact on his epistemology, his philosophy of language and mind, and his philosophy of values. The authors critically assess central elements of Davidson’s program and offer reappraisals of his seminal contributions to, and his continuing influence on, the development of contemporary philosophy. By focusing on agency, the book reveals Davidson’s views to have been more (...) dynamic and less reductive than previously acknowledged – pointing toward important new possibilities not only in the theory of knowledge, but also in the philosophy of mind. It is a valuable resource both for experts on Davidson’s philosophy and for those interested in central topics in the theory of action, the philosophy of mind and language, epistemology, moral philosophy, and the philosophy of values. It is also of interest to researchers in adjoining disciplines, such as cognitive science, linguistics, and psychology. (shrink)

In a 2007 paper, we argued that speakers with Autism Spectrum Disorders exhibit pragmatic abilities which are surprising given the usual understanding of communication in that group. That is, it is commonly reported that people diagnosed with an ASD have trouble with metaphor, irony, conversational implicature and other non-literal language. This is not a matter of trouble with knowledge and application of rules of grammar. The difficulties lie, rather, in successful communicative interaction. Though we did find pragmatic errors within literal (...) talk, the transcribed conversations we studied showed many, many successes. A second paper reinforced our finding of a general level of success. It considered differences within the class of pragmatically-inflected yet literal speech acts. The present paper carries our project forward. It overcomes some of the methodological limitations of the second paper, by increasing sample size, and looking at frequency of use rather than just seeming errors. It also includes a control sample. The emerging results are two-fold. On the one hand, there was a slight, statistically significant difference in frequency of use between our participants and the controls in four sub-categories: indexicals, possessives, polysemy and degree on a scale. In all four, the participants diagnosed with ASDs had fewer occurrences overall, relative to controls. On the other hand, there was no significant difference in error rates between ASDs and controls — not in any of the eight categories of pragmatic determinants of literal content that we coded for. The upshot is that, though there were less-preferred forms for participants with ASDs, they do very well indeed with pragmatic determinants of literal content. (shrink)

In a 2007 paper, we argued that speakers with Autism Spectrum Disorders exhibit pragmatic abilities which are surprising given the usual understanding of communication in that group. That is, it is commonly reported that people diagnosed with an ASD have trouble with metaphor, irony, conversational implicature and other non-literal language. This is not a matter of trouble with knowledge and application of rules of grammar. The difficulties lie, rather, in successful communicative interaction. Though we did find pragmatic errors within literal (...) talk, the transcribed conversations we studied showed many, many successes. A second paper reinforced our finding of a general level of success. It considered differences within the class of pragmatically-inflected yet literal speech acts. The present paper carries our project forward. It overcomes some of the methodological limitations of the second paper, by increasing sample size, and looking at frequency of use rather than just seeming errors. It also includes a control sample. The emerging results are two-fold. On the one hand, there was a slight, statistically significant difference in frequency of use between our participants and the controls in four sub-categories: indexicals, possessives, polysemy and degree on a scale. In all four, the participants diagnosed with ASDs had fewer occurrences overall, relative to controls. On the other hand, there was no significant difference in error rates between ASDs and controls — not in any of the eight categories of pragmatic determinants of literal content that we coded for. The upshot is that, though there were less-preferred forms for participants with ASDs, they do very well indeed with pragmatic determinants of literal content. (shrink)

Context: Although ethics consultation is commonplace in United States hospitals, descriptive data about this health service are lacking. Objective: To describe the prevalence, practitioners, and processes of ethics consultation in U.S. hospitals. Design: A 56-item phone or questionnaire survey of the “best informant” within each hospital. Participants: Random sample of 600 U.S. general hospitals, stratified by bed size. Results: The response rate was 87.4%. Ethics consultation services were found in 81% of all general hospitals in the U.S., and in 100% (...) of hospitals with more than 400 beds. The median number of consults performed by ECSs in the year prior to survey was 3. Most individuals performing ethics consultation were physicians, nurses, social workers, or chaplains. Only 41% had formal supervised training in ethics consultation. Consultation practices varied widely both within and between ECSs. For example, 65% of ECSs always made recommendations, whereas 6% never did. These findings highlight a need to clarify standards for ethics consultation practices. (shrink)

Although Donald Davidson is best known for his account of motivating reasons, towards the end of his life he did write about normative reasons, arguing for a novel form of realism we might call anomalous naturalism: anomalous, because it is not just non-reductive but also non-revisionary, refusing to compromise in any way on the thought that the prescriptive authority of normative reasons is objective and reaches to all possible agents; naturalism, because it still treats normative properties as perfectly ordinary causal (...) properties, and thus avoids many of the epistemological problems that bedevil realisms of the sort recently advanced by Thomas Nagel, Derek Parfit, and T. M. Scanlon. In the first section of the paper, I discuss Davidson’s understanding of objective prescriptivity and one important challenge that it faces. In the second section, I show how an answer to this challenge can be found in Davidson’s holism of the mental. As we shall see, Davidson’s holism of the mental makes the possibility of strongly prescriptive properties much easier to take seriously. In the final section of the paper, I take up various grounds for doubting that such properties could also be causal. (shrink)

Can an effective argument against scepticism about objective values be modelled on Donald Davidson’s familiar argument against scepticism about external things?

Dr. Myers challenges the legitimacy of the traditional concept of the "just war," revived during the Vietnam War and with the publication of Michael Walzer's Just and Unjust Wars in 1977.

In theories of gravity with a positive cosmological constant, we consider product solutions with flux, of the form (A)dS p ×S q . Most solutions are shown to be perturbatively unstable, including all uncharged dS p ×S q spacetimes. For dimensions greater than four, the stable class includes universes whose entropy exceeds that of de Sitter space, in violation of the conjectured “N-bound.” Hence, if quantum gravity theories with finite-dimensional Hilbert space exist, the specification of a positive cosmological constant will (...) not suffice to characterize the class of spacetimes they describe. (shrink)

Robert E. Myers has assembled a collection of essays which explore aspects of the relationship between science fiction and philosophy. Contributing authors focus on significant issues, questions, and ideas that penetrate to the center of our individual and social conceptions of human existence, and affect the ways in which we attempt to comprehend our world, ourselves, and others. The authors bring to this study the insights of diverse disciplines: philosophy, social science, poetry, linguistics, future studies, medical humanities, and (...) literature. Dealing exclusively with topics relating to science fiction and philosophy they offer an initial exploration of the philosophical problems within science fiction and their implications. (shrink)

Robert Myers presents an original moral theory which charts a course between the extremes of consequentialism and contractualism. He puts forward a radically new case for the existence of both agent-neutral and agent-relative values, and gives an innovative answer to the question how such disparate values can be weighed against each other. The result is a theory of morality which combines a balanced account of its content with a ringing affirmation of its authority.

Robert Myers presents an original moral theory which charts a course between the extremes of consequentialism and contractualism, portraying morality not simply as a matter of promoting the overall good but rather as a matter of cooperating in its promotion. This gives him answers to two of the most vexing questions in moral philosophy: how can increasing general welfare and respecting individual rights be equally fundamental features of moral activity, and what gives morality's demands their special character of (...) inescapability? (shrink)

Analyzing Morgenthau's Politics Among Nations, Myers provides a point-by-point discussion of his theory, concluding that the relevance of realism will be seen particularly in the search for a new balance of power in the post-Cold War world.

In a brief summary of a poll conducted by the Carnegie Council, Myers outlines the American public's views on issues ranging from foreign policy/peace issues to economic security, defense, and human rights.

The election of Roh Tae Woo marked the beginning of a new stage in Korean politics: "the period of Korean-style democracy." Myers follows events leading up to this change and predicts a less threatening, less Confucian politics for the Korea of the future.

I argue that the aim of moral activity is to cooperate with others in the promotion of value, where the concept of cooperation denotes not a formal ideal to be given content through reasoning but a substantive way of engaging with others. I show how this approach to ethical theory can provide better accounts of many of our moral convictions than consequentialist or contractualists approaches can, and defend it against the objection that, by downplaying moral reasoning, it robs itself of (...) any explanatory force. (shrink)

"In association with the UCLA Center for Seventeenth- and Eighteenth-Century Studies and the William Andrews Clark Memorial Library.".

Davidson's theory of radical interpretation, and his principle of charity, are well known in their application to beliefs and meanings, but rarely discussed in their application to desires and values. This is a pity, for they provide the makings of an argument for normative realism that is definitely worth exploring. After introducing Davidson's interpretation argument, I work through some familiar grounds for doubting that it applies to desires and values. Foremost among these are doubts about the extent to which holism (...) is true of desires and about the sense in which values or reasons could be thought to be objective. I conclude that while Davidson does not always address these doubts as thoroughly or as carefully as one might wish, he clearly sees how the argument here has to go, and he has at his disposal plausible responses to a good number of the challenges that are likely to arise. (shrink)

According to Michael Smith’s practicality requirement, if an agent judges that there is reason for her to f in circumstances C, then either she is motivated to f in C or she is practically irrational. As a number of critics have noted, however, it is far from clear that this is correct, for if an agent’s normative judgments have often proven unreliable before, or seem otherwise suspect now, it is not always clear what practical rationality demands of her. I therefore (...) begin by proposing a friendly amendment to Smith’s requirement, one that makes it much easier to defend. I then go on to argue that this requirement is actually much harder to satisfy than Smith thinks it is, and in fact that there is good reason to doubt that it could be satisfied if desires were nothing more than the purely functional states that Smith claims they are. (shrink)

Leist worries that by tying the ideal of cooperation to the aim of promoting the good I exhibit a bias towards consequentialism, and that this in turn leads me to downsize the role to be played by the ideal of cooperation within moral theory. I maintain that no bias is exhibited towards consequentialism but acknowledge that realism is being favoured over constructivism. I further argue that the role assigned to the ideal of cooperation is as large as realism permits.

RÉSUMÉEn réponse à Paul Hurley, je soutiens que l'argument de la triangulation de Donald Davidson ne peut s'appliquer aux croyances normatives que si ces croyances correspondent à des propriétés à la fois normatives et causales. L'argument engage donc Davidson à une forme de naturalisme non-réductif et étonnamment non-révisionniste. En réponse à Kirk Ludwig, je soutiens que Davidson avait de bonnes raisons d'abandonner les théories humiennes des pro-attitudes, parce qu'il avait de bonnes raisons d'accepter la forme de naturalisme non-réductive et non-révisionniste (...) qui émerge une fois que l'argument de la triangulation est appliqué aux croyances normatives. (shrink)