Matthew Walker's article has prompted us to consider neuropsychiatric disorders and pharmacological effects associated with sleep alterations, and aspects of memory affected. Not all disorders involving insomnia show memory impairment, and hypersomnias can be associated with memory deficits. The use of cholinergic medication in dementia indicates that consideration of the link between sleep and memory is more than academic.

Disturbances of consciousness, including fluctuations in attention and awareness, are a common and clinically important symptom in dementia with Lewy bodies. In the present study we investigate potential mechanisms of such disturbances of consciousness in a clinicopathological study evaluating specific components of the cholinergic system. [3H]Epibatidine binding to the high-affinity nicotinic receptor in the temporal cortex differentiated DLB cases with and without DOC, being 62–66% higher in those with DOC. The were no differences between DLB patients with or without DOC (...) in 125I-labeled α-bungaratoxin binding to the low-affinity nicotinic receptor, [3H]pirenzepine binding to the muscarinic M1 receptor, or in choline acetyltransferase activity. These findings provide support for the hypothesis that cholinergic activity is an important neural correlate if consciousness and suggest a mechanism of DOC in DLB involving alterations in the nicotinic receptor, composed of predominantly α4 and β2 subunits. (shrink)

The book examines issues related to the way modeling and simulation enable us to reconstruct aspects of the world we are investigating. It also investigates the processes by which we extract concrete knowledge from those reconstructions and how that knowledge is legitimated.

What is it for a group to believe something? A summative account assumes that for a group to believe that p most members of the group must believe that p. Accounts of this type are commonly proposed in interpretation of everyday ascriptions of beliefs to groups. I argue that a nonsummative account corresponds better to our unexamined understanding of such ascriptions. In particular I propose what I refer to as the joint acceptance model of group belief. I argue that group (...) beliefs according to the joint acceptance model are important phenomena whose aetiology and development require investigation. There is an analogous phenomenon of social or group preference, which social choice theory tends to ignore. (shrink)

What is the mind? How does it work? How does it influence behavior? Some psychologists hope to answer such questions in terms of concepts drawn from computer science and artificial intelligence. They test their theories by modeling mental processes in computers. This book shows how computer models are used to study many psychological phenomena--including vision, language, reasoning, and learning. It also shows that computer modeling involves differing theoretical approaches. Computational psychologists disagree about some basic questions. For instance, should the mind (...) be modeled by digital computers, or by parallel-processing systems more like brains? Do computer programs consist of meaningless patterns, or do they embody (and explain) genuine meaning? (shrink)

This article examines ontological/dynamical aspects of emergence, specifically the micro-macro relation in cases of universal behavior. I discuss superconductivity as an emergent phenomenon, showing why microphysical features such as Cooper pairing are not necessary for deriving characteristic properties such as infinite conductivity. I claim that the difficulties surrounding the thermodynamic limit in explaining phase transitions can be countered by showing how renormalization group techniques facilitate an understanding of the physics behind the mathematics, enabling us to clarify epistemic and ontological aspects (...) of emergence. I close with a discussion of the impact of these issues for questions concerning natural kinds. (shrink)

Life in Groups: How We Think, Feel, and Act Together comprises thirteen essays by the author relating to human life in groups, together with a substantial introduction and concluding discussion. The essays continue the development and application of the author’s perspective on collective beliefs, emotions, and actions, arguing that these and other central social phenomena are grounded in a joint commitment of the parties. This commitment unifies them, guides their actions going forward, and determines their relations to one another in (...) important ways. In particular, it grounds in each of the parties a set of rights and obligations of a particular kind. The introduction serves both to introduce joint commitment to those unfamiliar with it and to advance discussion in light of questions that have been raised. Several of the essays respond to comments on particular aspects of the author’s work. These include an essay that addresses some central questions about a joint commitment approach to the problem of political obligation. (shrink)

First published in 1985 and written by leading contributors to the field of general equilibrium analysis, this volume brings together developments in the field of applied general equilibrium modelling. Papers discuss approaches to welfare measurement in applied models, applications to hitherto unexplored areas, such as economic history, extensions to analyse micro data files, regional analyses, fixed price equilibria, and many others. Earlier versions of the papers in this volume were presented at a conference held in Canberra, Australia.

Typical agreements can be seen as joint decisions, inherently involving obligations of a distinctive kind. These obligations derive from the joint commitment' that underlies a joint decision. One consequence of this understanding of agreements and their obligations is that coerced agreements are possible and impose obligations. It is not that the parties to an agreement should always conform to it, all things considered. Unless one is released from the agreement, however, one has some reason to conform to it, whatever else (...) is true. In this sense, one is under an obligation to the other parties. The relevance of these points to the issue of political obligation is discussed. (shrink)

To be truly reflective, moral thinking and moral philosophy must become aware of the contexts that bind our thinking about how to live. These essays show how to do this, and why it makes a difference.

Among other things, this paper considers what so-called collective guilt feelings amount to. If collective guilt feelings are sometimes appropriate, it must be the case that collectives can indeed be guilty. The paper begins with an account of what it is for a collective to intend to do something and to act in light of that intention. An account of collective guilt in terms of membership guilt feelings is found wanting. Finally, a "plural subject" account of collective guilt feelings is (...) articulated, such that they involve a joint commitment to feel guilt as a body. (shrink)

Involuntary psychiatric commitment for suicide prevention and physician aid-in-dying (PAD) in terminal illness combine to create a moral dilemma. If PAD in terminal illness is permissible, it should also be permissible for some who suffer from nonterminal psychiatric illness: suffering provides much of the justification for PAD, and the suffering in mental illness can be as severe as in physical illness. But involuntary psychiatric commitment to prevent suicide suggests that the suffering of persons with mental illness does not justify ending (...) their own lives, ruling out PAD. Since both practices have compelling underlying justifications, the most reasonable accommodation might seem to be to allow PAD for persons with mental illness whose suffering is severe enough to justify self-killing, but prohibit PAD for persons whose suffering is less severe. This compromise, however, would require the articulation of standards by which persons’ mental as well as physical suffering could be evaluated. Doing so would present a serious philosophical challenge. (shrink)

There is increasing public interest in understanding the nature of corporate ethics due to the knowledge that unethical decisions and activities frequently undermine the performance and abilities of many organizations. Of the current literature found on the topic of ways organizations can influence ethical behavior, a majority is found on the issue of corporate codes of ethics.Most discussions on codes of ethics evaluate the contents of the codes and offer opinions on their wording, content, and/or value. Unfortunately, very little research (...) has been devoted towards discovering whether they are effective in promoting ethical decision-making behavior. Thus, due to the lack of empirical research on this particular topic, this paper attempts to further address this issue. (shrink)

The Ethics of Nationalism blends philosophical discussion of the ethical merits and limits of nationalism with a detailed understanding of nationalist aspirations and a variety of national conflict zones. The author discusses the controversial and contemporary issues of rights of secession, the policies of the state in privileging a particular national group, the kinds of accommodations of minority national, and multi cultural identity groups that are justifiable and appropriate.

I develop two different epistemic roles for emotion and desire. Caring for moral ends and people plays a pivotal though contingent role in ensuring reliable awareness of morally salient details; possession of various emotions and motives is a necessary condition for autonomous understanding of moral concepts themselves. Those who believe such connections compromise the "objective" status of morality tend to assume rather than argue for the bifurcated conception of reason and affect this essay challenges.

Introduction In 1709 George Berkeley published his first substantial work, An Essay towards a New Theory of Vision. As a contribution to the theory of ...

I respond to some questions raised by Frances Kamm with respect to my book Rights and Demands (2018). The book focuses on demand-rights and asks how we accrue them. In other words, how does one accrue the standing to demand an action of someone or rebuke them for non-performance? My response to Kamm emphasizes how I understand “directed duties” in this context. Contrary to the standard practice of rights theorists, I do not start from the assumption that directed duties are (...) constituted by “plain” duties in the context of other factors (about which rights theorists disagree). Rather, I understand my duty to you as the correlative and equivalent of your standing to demand the action in question. I offer a number of further clarifications and conclude by distinguishing the targets of my discussion from other phenomena of interest to moral philosophers, such as complaining and blaming. (shrink)

Work on representing women's voices in ethics has produced a vision of moral understanding profoundly subversive of the traditional philosophical conception of moral knowledge. 1 explicate this alternative moral “epistemology,” identify how it challenges the prevailing view, and indicate some of its resources for a liberatory feminist critique of philosophical ethics.

A feature of David Lewis's account of conventions in his book "Convention" which has received admiring notices from philosophers is his use of the mathematical theory of games. In this paper I point out a number of serious flaws in Lewis's use of game theory. Lewis's basic claim is that conventions cover 'coordination problems'. I show that game-Theoretical analysis tends to establish that coordination problems in Lewis's sense need not underlie conventions.

The question whether and in what way languages and language use involve convention is addressed, With special reference to David Lewis's account of convention in general. Data are presented which show that Lewis has not captured the sense of 'convention' involved when we speak of adopting a linguistic convention. He has, In effect, attempted an account of social conventions. An alternative account of social convention and an account of linguistic convention are sketched.

Proponents of ground, which is used to indicate relations of ontological fundamentality, insist that ground is a unified phenomenon, but this thesis has recently been criticized. I will first review the proponents' claims for ground's unicity, as well as the criticisms that ground is too heterogeneous to do the philosophical work it is supposed to do. By drawing on Aristotle's notion of homonymy, I explore whether ground's metaphysical heterogeneity can be theoretically accommodated while at the same time preserving its proponents' (...) desideratum that it be a unified phenomenon. (shrink)

A number of authors, Including Thomas Schelling and David Lewis, have envisaged a model of the generation of action in coordination problems in which salience plays a crucial role. Empirical studies suggest that human subjects are likely to try for the salient combination of actions, a tendency leading to fortunate results. Does rationality dictate that one aim at the salient combination? Some have thought so, Thus proclaiming that salience is all that is needed to resolve coordination problems for agents who (...) are rational in the sense of game theory. I argue against this position; rational agents will not necessarily aim for the salient. It remains to explain how the salient comes to be chosen by human beings. Various possibilities are noted. One involves a mechanism invoked by Hume and Wittgenstein in other contexts: we may project an unreasoned compulsion onto reason, falsely believing that rationality dictates our choice of the salient. (shrink)

Philosophers using game-theoretical models of human interactions have, I argue, often overestimated what sheer rationality can achieve. (References are made to David Gauthier, David Lewis, and others.) In particular I argue that in coordination problems rational agents will not necessarily reach a unique outcome that is most preferred by all, nor a unique 'coordination equilibrium' (Lewis), nor a unique Nash equilibrium. Nor are things helped by the addition of a successful precedent, or by common knowledge of generally accepted personal principles. (...) Commitments like those generated by agreements may be necessary for rational expectations to arise. Social conventions, construed as group principles (following the analysis in my book On Social Facts), would suffice for this task. (shrink)

Daryl Pullman (2023), seeking to slow the slide down what he sees as the slippery slope of MAID, employs an epigraph from H.L. Mencken: “For every human problem there is a solution that is simple,...

This essay argues that the concept of ‘reasonableness’plays an important role in Scanlon's, Rawls's, and Barry's theories of justice (or morality). The relationship between moral motivation and reasonableness is critically analysed. Specifically, the paper questions whether it is plausible to impute to the agents of construction the desire ‘to justify our actions to others on impartial terms’. It also argues that most of the work is done by the assumption that people are reasonable rather than by the contractarian formulation. Indeed, (...) the paper argues, the argument could proceed entirely by making explicit and arguing for the moral assumptions embedded in the concept of reasonableness [1]. (shrink)

This is how A. John Simmons sets the scene for his discussion of political obligation in his book Moral Principles and Political Obligations, one of the best known contemporary philosophical treatments of the subject.

It is widely accepted that only the victim of a wrong can forgive that wrong. Several philosophers have recently defended “third-party forgiveness,” the scenario in which A, who is not the victim of a wrong in any sense, forgives B for a wrong B did to C. Focusing on Glen Pettigrove's argument for third-party forgiveness, I will defend the victim's unique standing to forgive, by appealing to the fact that in forgiving, victims must absorb severe and inescapable costs of distinctive (...) kinds, a plight that third parties do not share. There are, nonetheless, significant, even essential, roles played by third parties in making forgiveness possible, reasonable, or valuable for victims of serious wrongs. I take a closer look at the links between victims, wrongdoers, resentment, and forgiveness in showing why the victim alone can forgive. (shrink)

Can teams and other collectivities have preferences of their own, preferences that are not in some way reducible to the personal preferences of their members? In short, are collective preferences possible? In everyday life people speak easily of what we prefer, where what is at issue seems to be a collective preference. This is suggested by the acceptability of such remarks as ‘My ideal walk would be . . . along rougher and less well-marked paths than we prefer as a (...) family’. One can imagine, indeed, that each member of a given family prefers something other than what the family prefers. What, then, do the collective preferences of everyday understanding amount to? (shrink)

New theological understanding can emerge with the advancement of scientific knowledge and the use of new concepts, or older concepts in new ways. Here, the authors present a proposal to extend the concept of “rescue and recovery” found in the United Nations Law of the High Seas, off‐world and within a broader purview of other intelligent and self‐aware species that humans may someday encounter. The notion of a morality that extends to off‐world species is not new, but in this analysis, (...) rescue and recovery become an imperative when any intelligent and self‐aware species is in harm's way. Rescue and recovery encompass a necessary action component except perhaps in those cases where rescuers are in danger. The authors explore three biblical examples of rescue and recovery to derive a fundamental meaning of the concept. (shrink)

In discussions of religious disagreement, some epistemologists have suggested that religious disagreement is distinctive. More specifically, they have argued that religious disagreement has certain features which make it possible for theists to resist conciliatory arguments that they must adjust their religious beliefs in response to finding that peers disagree with them. I consider what I take to be the two most prominent features which are claimed to make religious disagreement distinct: religious evidence and evaluative standards in religious contexts. I argue (...) that these two features fail to distinguish religious disagreement in the ways they have been taken to. However, I show that the view that religious disagreement is not a unique form of disagreement makes religious disagreement less, rather than more, worrisome to the theist who would prefer to rationally remain steadfast in her religious beliefs. (shrink)

Can it ever be appropriate to feel guilt just because one's group has acted badly? Some say no, citing supposed features of guilt feelings as such. If one understands group action according to my plural subject account of groups, however, one can argue for the appropriateness of feeling guilt just because one's group has acted badly - a feeling that often occurs. In so arguing I sketch a plural subject account of groups, group intentions and group actions: for a group (...) to intend (in the relevant sense) is for its members to be jointly committed to intend that such-and-such as a body. Individual group members need not be directly involved in the formation of the intention in order to participate in such a joint commitment. The core concept of joint commitment is in an important way holistic, not being reducible to a set of personal commitments over which each party holds sway. (shrink)

Seventeenth century discussions of materialism, whether favorable or hostile towards the position, are generally conducted on a level of much less precision and sophistication than recent work on the problem of the mind-body relation. Nevertheless, the earlier discussions can still be interesting to philosophers, as the plethora of references to Cartesian arguments in the recent literature makes clear. Certainly the early development of materialist patterns of thought, and efforts on both the materialist and immaterialist side to establish fundamental points in (...) the philosophical analysis of mind, have considerable historical interest at the present time. This paper attempts to clarify the significance of some of leibniz's views in connection with the materialist thesis. I do not have in mind his rather notorious parallelism, though some of the points made below bear indirectly on the character of this position. Instead, I will examine his approach to arguments against materialism. (shrink)

In recent years numerous multi-national states have disintegrated along national lines, and today many more continue to witness bitter secessionist struggles. This ambitious study brings together for the first time a series of original essays on the ethics of secession. A host of leading figures explore key issues in this important debate, including, what is `a people' and what gives them a right to secede? And is national self-determination consistent with liberal and democratic principles or is it a dangerous doctrine?