Understanding cooperation and punishment in small-scale societies is crucial for explaining the origins of human cooperation. We studied warfare among the Turkana, a politically uncentralized, egalitarian, nomadic pastoral society in East Africa. Based on a representative sample of 88 recent raids, we show that the Turkana sustain costly cooperation in combat at a remarkably large scale, at least in part, through punishment of free-riders. Raiding parties comprised several hundred warriors and participants are not kin or day-to-day interactants. Warriors incur substantial (...) risk of death and produce collective benefits. Cowardice and desertions occur. (shrink)

Here, we revise Pietraszewski's model of groups by assigning participant pairs with two triplets, denoting: the type of game that models the interaction, its critical switching point between alternatives, and the perception of strategic similarity with the opponent. These triplets provide a set of primitives that accounts for individuals' strategic motivations and observed behaviors.

Research over the past half century has produced extensive evidence that observers cannot report or retain all of the details of their visual world from one moment to the next. During the past decade, a new set of studies has illustrated just how pervasive these limits are. For example, early evidence for the failure to detect changes to simple dot patterns (Phillips, 1974) and arrays of letters (Pashler, 1988) generalizes to more naturalistic displays such as photographs and motion pictures (e.g., (...) Levin & Simons, 1997; Rensink, O’Regan, & Clark, 1997; see Rensink, 2002 for a recent review). This failure to report changes (change blindness) can be induced in both simple and naturalistic displays, whenever the change co-occurs with a visual disruption such as an eye movement (Currie, McConkie, Carlson-Radvansky, & Irwin, 1995; Hollingworth, Schrock, & Henderson, 2001), image shift (Blackmore, Brelstaff, Nelson, & Troscianko, 1995), flashed blank screen (Rensink et al., 1997), blink (O’Regan, Deubel, Clark, & Rensink, 2000), transient (O’Regan, Rensink, & Clark, 1999; Rensink, O’Regan, & Clark, 2000), movie cut or pan (Levin & Simons, 1997; Simons, 1996), or an occlusion event (Levin, Simons, Angelone, & Chabris, 2002; Simons & Levin, 1998). Change blindness can also occur in the absence of a disruption, provided the change occurs gradually enough that it does not attract attention (Simons, Franconeri, & Reimer, 2000). -/- Failures of visual awareness have been induced in a number of ways. For example, observers often fail to report a visible but unexpected stimulus when attention is focused on some other object or event in the display (inattentional blindness). As for change blindness, inattentional blindness occurs for both simple (Mack & Rock, 1998; Most et al., 2001) and naturalistic stimuli (Simons & Chabris, 1999). Similarly, repeated instances of an item often go undetected when embedded in a rapid sequence (repetition blindness), a phenomenon that occurs for both words and pictures (Kanwisher, 1987; Kanwisher & Potter, 1990). Observers can also fail to detect a stimulus in a rapid stream of stimuli provided they had to perform an attention-demanding task shortly before the stimulus appeared (Shapiro, Arnell, & Raymond, 1997). The surprisingly large variety of conditions that induce failures of conscious perception reinforces the broad conclusion that we are often unaware of what would otherwise be fully-visible stimuli. -/- Along with an increased appreciation of the limitations of visual awareness has come a renewed interest in using these limitations to explore the nature of the representations and processes underlying our visual experience. Are these limitations due to failures of perception? Of attention? Of memory? What is preserved with and without awareness? -/- The papers in this special issue of the Journal of Vision provide examples of exciting new work on induced failures of visual awareness and the mechanisms that underlie them. For example, several papers examine whether observers are drawn to parts of a display by the stimulus features or whether top-down control or semantic comprehension influence search through a display. Others investigate the nature of and limits on the information that is preserved from one view to the next and how much information needs to be retained for effective perception and action. As guest editors, we hope that this special issue will illustrate how studying the relationship between visual awareness and visual representations can lead to important new insights into the nature of seeing. (shrink)

Recently, a number of experiments have emphasized the degree to which subjects fail to detect large changes in visual scenes. This finding, referred to as “change blindness,” is often considered surprising because many people have the intuition that such changes should be easy to detect. Levin, Momen, Drivdahl, and Simons documented this intuition by showing that the majority of subjects believe they would notice changes that are actually very rarely detected. Thus subjects exhibit a metacognitive error we refer to (...) as “change blindness blindness.” Here, we test whether CBB is caused by a misestimation of the perceptual experience associated with visual changes and show that it persists even when the pre- and postchange views are separated by long delays. In addition, subjects overestimate their change detection ability both when the relevant changes are illustrated by still pictures, and when they are illustrated using videos showing the changes occurring in real time. We conclude that CBB is a robust phenomenon that cannot be accounted for by failure to understand the specific perceptual experience associated with a change. (shrink)

A hierarchical ordering of approaches afflicts environmental thinking. An ethics of individualism unjustly overrides social/political philosophy in environmental debates. Dialectics helps correct this imbalance. In dialectical fashion, a synthesis emerges between conflicting approaches to dialectics and to nature from: Marxism (Levins and Lewontin), anarchism (Bookchin), and Native Americanism (Black Elk). Conflicting (according to Marxists) and cooperative (according to anarchists) forces both operate in nature. Ethics (anarchist), political theory (Marxist), and spirituality (Native American) constitute the interconnected interpretative domains of a dialectically (...) informed ecophilosophy. In a world painted too often in blacks and whites, ecological dialectics colors the picture a more realistic gray. (shrink)

The process-dissociation procedure was used to estimate the influence of spatial and form-based processing in the Simon task. Subjects made manual responses to the direction of arrows . The results provide evidence that the form and spatial location of a single stimulus can have functionally independent effects on performance. They also indicate the existence of two kinds of automaticity—an associative component that reflects prior S-R mappings and a nonassociative component that reflects the correspondence between stimulus and response codes.

Kinematic properties of reaching movements reflect constraints imposed on the joint angles. Contemporary models present solutions to the redundancy problem by a pseudoinverse procedure (Whitney 1969) or without any inversion (Berkenblit et al. 1986). Feldman & Levin suggest a procedure based on a regular inversion. These procedures are considered as an outcome of a more general approach.

A hierarchical ordering of approaches afflicts environmental thinking. An ethics of individualism unjustly overrides social/political philosophy in environmental debates. Dialectics helps correct this imbalance. In dialectical fashion, a synthesis emerges between conflicting approaches to dialectics and to nature from: Marxism (Levins and Lewontin), anarchism (Bookchin), and Native Americanism (Black Elk). Conflicting (according to Marxists) and cooperative (according to anarchists) forces both operate in nature. Ethics (anarchist), political theory (Marxist), and spirituality (Native American) constitute the interconnected interpretative domains of a dialectically (...) informed ecophilosophy. In a world painted too often in blacks and whites, ecological dialectics colors the picture a more realistic gray. (shrink)

John Stuart Mill's best-known work is On Liberty. In it he declared that Western society was in danger of coming to a standstill. This was an extraordinarily pessimistic claim in view of Britain's global dominance at the time and one that has been insufficiently investigated in the secondary literature. The wanting model was that of China, a once advanced civilization that had apparently ossified. To understand how Mill came to this conclusion requires one to investigate his notion of the stages (...) from barbarism to civilization, and also his belief in imperialism as part of the civilizing process. Here India plays a central role, as both Mill and his father worked for the East India Company. This study, then, investigates the relationship between Mill's liberalism and his justification of imperialism. It takes us into the Utilitarianism of his family background, and such other influences as Romanticism, Scottish political economy and such key French thinkers as Saint- Simon, Guizot, Comte and Tocqueville. Mill, then, provides the focus of a debate on the origins, meaning, and consequences of Western civilization. It encompasses discourses on colonialism and orientalism, on Enlightenment optimism and conservative despair, on the need for leadership and the advance of democracy; in short, on the blessings, curses and dangers of modernization from approximately the time of the American and French revolutions to that of the so-called mid-Victorian calm in which On Liberty was written. Furthermore, current political issues concerning the West and Islamic countries have heightened interest in just the kind of question that this book discusses: that of how the West relates to, and assesses, the rest of the world. (shrink)

_On Heidegger's Being and Time_ is an outstanding exploration of Heidegger's most important work by two major philosophers. Simon Critchley argues that we must see _Being and Time_ as a radicalization of Husserl's phenomenology, particularly his theories of intentionality, categorial intuition, and the phenomenological concept of the a priori. This leads to a reappraisal and defense of Heidegger's conception of phenomenology. In contrast, Reiner Schürmann urges us to read Heidegger 'backward', arguing that his later work is the key to (...) unravelling _Being and Time_. Through a close reading of _Being and Time_ Schürmann demonstrates that this work is ultimately aporetic because the notion of Being elaborated in his later work is already at play within it. This is the first time that Schürmann's renowned lectures on Heidegger have been published. The book concludes with Critchley's reinterpretation of the importance of authenticity in _Being and Time_. Arguing for what he calls an 'originary inauthenticity', Critchley proposes a relational understanding of the key concepts of the second part of _Being and Time_: death, conscience and temporality. (shrink)

Interventions that are designed to stem plagiarism do not always override the motivation of individuals to cheat and, therefore, may not diminish misconduct. To inform more effective approaches, we conducted a systematic review to clarify the psychological causes of plagiarism. This review of 83 empirical papers showed that a specific blend of circumstances may foster plagiarism: an emphasis on competition and success rather than development and cooperation coupled with impaired resilience, limited confidence, impulsive tendencies, and biased cognitions. Fortunately, whenever students (...) feel their life and studies align to their future aspirations, many of these circumstances tend to dissipate. (shrink)

Simon A Longstaff; Democratic Education and the Curriculum Safety-net: a tantalising illusion?, Journal of Philosophy of Education, Volume 23, Issue 1, 30 May 2.

It is often claimed by environmental philosophers and green political theorists that liberalism, the dominant tradition of western political philosophy, is too focused on the interests of human individuals to give due weight to the environment for its own sake. In "How to be a Green Liberal", Simon Hailwood challenges this view and argues that liberalism can embrace a genuinely 'green', non-instrumental view of nature. The book's central claim is that nature's 'otherness', its being constituted of independent entities and (...) processes that do not reflect our purposes, is a basis for value and can be incorporated within liberal political philosophy as a fundamental commitment alongside human freedom and equality. Hailwood argues that the conceptual resources already exist within mainstream liberalism for a thoroughly non-instrumental perspective. Adopting a rigorous philosophical approach Hailwood tackles a wide range of themes across environmental ethics, including holistic theories, deep ecology, eco-feminism and eco-anarchism, as well as issues in value theory and political philosophy more generally. In making the case for liberalism's green credentials "How to be a Green Liberal" is a formidable challenge to recent green political theory and will be required reading not only for students of political philosophy but for all those interested in the natural world and man's relationship to it. (shrink)

It is often claimed by environmental philosophers and green political theorists that liberalism, the dominant tradition of western political philosophy, is too focused on the interests of human individuals to give due weight to the environment for its own sake. In "How to be a Green Liberal", Simon Hailwood challenges this view and argues that liberalism can embrace a genuinely 'green', non-instrumental view of nature. The book's central claim is that nature's 'otherness', its being constituted of independent entities and (...) processes that do not reflect our purposes, is a basis for value and can be incorporated within liberal political philosophy as a fundamental commitment alongside human freedom and equality. Hailwood argues that the conceptual resources already exist within mainstream liberalism for a thoroughly non-instrumental perspective. Adopting a rigorous philosophical approach Hailwood tackles a wide range of themes across environmental ethics, including holistic theories, deep ecology, eco-feminism and eco-anarchism, as well as issues in value theory and political philosophy more generally. In making the case for liberalism's green credentials "How to be a Green Liberal" is a formidable challenge to recent green political theory and will be required reading not only for students of political philosophy but for all those interested in the natural world and man's relationship to it. (shrink)

Clarke and Beck assume that approximate number system representations should be assigned referents from our scientific ontology. However, many representations, both in perception and cognition, do not straightforwardly refer to such entities. If we reject Clarke and Beck's assumption, many possible contents for ANS representations besides number are compatible with the evidence Clarke and Beck cite.

This essay articulates a double helix at work in Badiou’s thought on politics as a condition of philosophy and philosophy as such by focusing on what Badiou calls “the Idea of communism” and we will call “the communism of the Idea.” The former refers to communism as an Idea par excellence, while the latter concerns the Idea as a philosophical communism. The first section of the essay unpacks the Idea of communism as a composite interaction of politics, history, and subjectivity (...) insofar as each of these elements cannot be taken in themselves. Contrary to post-ideology, Badiou condemns the claim that we should live without an ideological framework insofar as this asks us to live without an Idea. The second section will focus on the communism of the Idea as the result of Badiou’s broader philosophical project and its major Platonic gestures. Badiou’s broader concerns pertain to the commitment to live with an Idea as finite, infinite, and transfinite to the endpoint that philosophy itself is characterized to be destined for communism. The crux that anyone can become a serious philosopher if, to paraphrase Diotima in Plato’s Symposium, they gracefully lend themselves to the process of truths as their fundamental commitment. (shrink)

In this paper I address the issue of how far libertarianism can serve as the theoretical framework for a political morality excluding serious obligations to the needy. This issue has been raised recently by Gillian Brock who argues that even those adopting a thoroughgoing libertarianism, such as that of Robert Nozick, must recognise significant obligations to the needy as a condition of claiming exclusive property rights. I argue that Brock fails to demonstrate this. After briefly describing Brock's main argument I (...) discuss the acquisition of libertarian property rights, and try to show there are sufficient resources in Nozick's account for him to accept her main conclusion in principle without recognising significant obligations. Then, after some supplementary discussion, I sketch two different lines of argument. One uses the issue of corporate liability. The other focusses on problems with Nozick's "entitlement" principle of rectification. I try to show that even if the libertarian entitlement theory of property rights, their acquisition and transfer, is accepted, this gives no grounds for resisting claims for redistribution based on others' needs. (shrink)

This book examines the general liberal aspiration of neutrality whilst moving discussion of Nozick's moral and political philosophy on from Anarchy, State and Utopia. Using neutralism as a unifying theme it connects his views on ethics, value and pluralism with the earlier libertarianism, combining an up to date critique of Nosick with a fresh view of neutrality.

It is widely supposed that liberal political theory must exclude direct concern for nature, that its anthropocentric individualism can allow only indirect, instrumental value to the non‐human world. This is perhaps thought to be especially true of contractarian versions of liberalism. In this paper I try to show that this is not so by outlining an argument based on an analogy between the ‘neutrality’ of Rawls' political liberalism and the ‘otherness’ of external nature. I consider some possible objections to the (...) argument, and try to explain why I think that the analogy is strong enough to justify modifying the Rawlsian approach to encompass direct concern for external nature (as other). If I am right then it is not necessary completely to abandon that approach in order to construct a more adequately ecocentric political theory. (shrink)

Respect for victims requires that we have social systems for punishing and condemning (reproving) serious crimes. But, the conditions of social marginalization and political subordination of the communities from which an overwhelming number of prisoners in the United States come place serious barriers in the face of effective reprobation. Mass incarceration makes this problem worse by disrupting and disrespecting entire communities. While humanities education in the prisons is far from a total solution, it is one way to make reprobation meaningful, (...) so long as the prison classroom is a place where the educators’ values are also put at risk. (shrink)

While ethical conflicts in the provision of healthcare are common, the current third-party mediator model is limited by a lack of expert ethical mediators, who are often not on site when conflict escalates. In order to improve clinical outcomes in situations such as conflicts at the end of life, we suggest that clinicians—physicians, nurses and social workers—be trained to prevent and deescalate emerging conflicts. This can be achieved using a mediation model framed by a communication-training approach. A case example is (...) presented and the model is discussed. The implication of this preventative/early intervention model for improving clinical outcomes, in particular end-of life conflict, is considered. (shrink)

Recent influential accounts of temporal representation—the use of mental representations with explicit temporal contents, such as before and after relations and durations—sharply distinguish representation from mere sensitivity. A common, important picture of inter-temporal rationality is that it consists in maximizing total expected discounted utility across time. By analyzing reinforcement learning algorithms, this article shows that, given such notions of temporal representation and inter-temporal rationality, it would be possible for an agent to achieve inter-temporal rationality without temporal representation. It then explores (...) potential upshots of this result for theorizing about rationality and representation. (shrink)

There has recently been a reappraisal of value in UK construction and calls from a wide range of influential individuals, professional institutions and government bodies for the industry to exceed stakeholders’ expectations and develop integrated teams that can deliver world class products and services. As such value is certainly topical, but the importance of values as a separate but related concept is less well understood. Most construction firms have well-defined and well-articulated values, expressed in annual reports and on websites; however, (...) the lack of rigorous and structured approaches published within construction management research and the practical, unsupported advice on construction institution websites may indicate a shortfall in the approaches used. This article reviews and compares the content and␣structure of some of the most widely used values approaches, and discusses their application within the construction sector. One of the most advanced and empirically tested theories of human values is appraised, and subsequently adopted as a suitable approach to eliciting and defining shared organisational values. Three studies within six construction organisations demonstrate the potential application of this individually grounded approach to reveal and align the relative values priorities of individuals and organisations to understand the strength of their similarity and difference. The results of these case studies show that this new universal values structure can be used along with more qualitative elicitation techniques to understand organisational cultures. (shrink)

This paper is a survey of recent results concerning connections between relation algebras , cylindric algebras and polyadic equality algebras . We describe exactly which subsets of the standard axioms for RA are needed for axiomatizing RA over the RA-reducts of CA3's, and we do the same for the class SA of semi-associative relation algebras. We also characterize the class of RA-reducts of PEA3's. We investigate the interconnections between the RA-axioms within CA3 in more detail, and show that only four (...) implications hold between them . In the other direction, we introduce a natural CA-theoretic equation MGR+, generalization of the well-known Merrry-Go-Round equation MGR of CA-theory. We show that MGR+ is equivalent to the RA-reduct being an SA, and that MGR+ implies that the RA-reduct determines the algebra itself, while MGR is not sufficient for either of these to hold. Then we investigate how different CA's a single RRA can 'generate' in the general case. We solve the first part of Problem 11 from the 'Problem Session Paper' of [2].While proving some of the statements, for others we give only outline of proof. The paper contains several open problems. A full version of this paper is under preparation.Keywords: relation algebras, cylindric algebras, polyadic algebras, algebraic logic, arrow logic, proof theory, finite variable fragments, provability with 3 variables, non-finitizability, twisting, non-standard models, neat reducts, representability. (shrink)

Objectives: To analyse and compare the surveys on German doctors and judges on end of life decision making regarding their attitudes on the advance directive and on the dying process.Design: The respondents were to indicate their agreement or disagreement to eight statements on the advance directive and to specify their personal view on the beginning of the dying process.Participants: 727 doctors in three federal states and 469 judges dealing with guardianship matters all over Germany.Main measurements: Comparisons of means, analyses of (...) variance, pivot tables and factor analyses .Results: Three attitude groups on advance directive were disclosed by the analysis: the decision model, which emphasises the binding character of a situational advance directive; the deliberation model, which puts more emphasis on the communicative aspect; and the delegation model, which regards the advance directive as a legal instrument. The answers regarding the beginning of the dying process were broadly distributed, but no marked difference was observed between the responding professions. The dying process was assumed by most participants to begin with a life expectancy of only a few days.Conclusions: A high degree of valuation for advance directive was seen in both German doctors and judges; most agreed to the binding character of the situational directive. Regarding the different individual concepts of the dying process, a cross-professional discourse on the contents of this term seems to be overdue. (shrink)

Our engagement with time is a ubiquitous feature of our lives. We are aware of time on many scales, from the briefest flicker of change to the way our lives unfold over many years. But to what extent does this encounter reveal the true nature of temporal reality? To the extent that temporal reality is as it seems, how do we come to be aware of it? And to the extent that temporal reality is not as it seems, why does (...) it seem that way? These are the central questions addressed by Simon Prosser in Experiencing Time. He defends the B-theory of time, according to which the apparently dynamic quality of change, the special status of the present, and even the passage of time are all illusions. Prosser goes on to explore solutions to certain puzzles raised by experiences of temporal features such as changes, rates, and durations, and in doing so sheds light on broader issues in the philosophy of mind. (shrink)

This paper analyzes a recent case in which a court, like the Daubert Court, was asked to demarcate legitimate from illegitimate science. The court was the International Court of Justice (ICJ), and it was asked by the state of Australia to find the state of Japan in violation of the International Convention for the Regulation of Whaling because of its licensing of a research program that engaged in killing whales ostensibly “for purposes of scientific research.” Australia premised a good portion (...) of its argument on a four-part definition of “scientific research,” reminiscent of the four notorious “Daubert criteria,” and the claim that the Japanese research program, “JARPA II,” failed to comply with this definition. The paper suggests that the Court’s judgment, which forced Japan to temporarily cease whaling, illustrates the merits for courts of avoiding the temptation to engage in demarcation exercises. (shrink)