Postmortem evidence of chronic traumatic encephalopathy (CTE) in the brains of American National Football League players who suffered concussions while playing have intensified concerns about the risks of concussion in sport.1 Concussions are frequently sustained by amateur and professional players of Australia’s three most popular football codes (Australian football, rugby league, and rugby union) and, to a lesser extent, other contact sports such as soccer. This raises major concerns about possible long-term neurological damage, cognitive impairment and mental health problems in (...) players of these sports. (shrink)

A complete environmental ethic must include a theory of motivation to assure that the demands of that ethic are within the capacity of human beings. J. Baird Callicott has argued that these requisite sentiments may be found in the moral psychology of David Hume, enriched by the insights of Charles Darwin. I reply that, on the contrary, Humean moral sentiments are more likely to incline one toanthropocentrism than to Aldo Leopold’s land ethic, which is defended by Callicott. This mismatch becomes (...) more evident as Callicott attempts to enlist Humean moral sentiments in support of the Leopoldian “land community.” The disanalogies between human and natural communities, I argue, are too great to permit this application. The motivation we need to meet our duties as “citizens of the land community” must be of a nonmoral kind. I suggest that the necessary sentiments may be found in a genetically based “affirmation of nature” that has evolved out of our natural history as a species, shaped by the very forces and contexts that are now put in peril by our technology. (shrink)

A complete environmental ethic must include a theory of motivation to assure that the demands of that ethic are within the capacity of human beings. J. Baird Callicott has argued that these requisite sentiments may be found in the moral psychology of David Hume, enriched by the insights of Charles Darwin. I reply that, on the contrary, Humean moral sentiments are more likely to incline one toanthropocentrism than to Aldo Leopold’s land ethic, which is defended by Callicott. This mismatch becomes (...) more evident as Callicott attempts to enlist Humean moral sentiments in support of the Leopoldian “land community.” The disanalogies between human and natural communities, I argue, are too great to permit this application. The motivation we need to meet our duties as “citizens of the land community” must be of a nonmoral kind. I suggest that the necessary sentiments may be found in a genetically based “affirmation of nature” that has evolved out of our natural history as a species, shaped by the very forces and contexts that are now put in peril by our technology. (shrink)

The 6th Consensus Statement on Concussion in Sport is authored by the Concussion in Sport Group (CiSG) and intends to provide evidence-based recommendations on concussion management for the welfare of sports participants. However, the authors of the Consensus Statement have declared many competing links to third-party groups. While the declaration of an author’s competing interests is now a widely accepted practice within academic publishing aimed at greater transparency and research integrity, it is not a measure to remove the potential influence (...) of third-party links. In the case of the Consensus Statement, this leaves uncertainty about how the potential sources of third-party bias declared by individual members of the CiSG may have influenced the CiSG’s interpretation of the existing state of evidence on concussion management and impacted the content of the recommendations contained with the Consensus Statement. Openly declaring third-party links falls short of securing trustworthiness in the Consensus Statement recommendations since it leaves end-users of the Consensus Statement with the task of interpreting the impact(s) of these competing interests with little information to guide them. This is because the authors themselves offer neither explanation nor guidance concerning potential bias arising from the competing interests that they have declared, which impinges upon the ability of readers to evaluate the trustworthiness of the content. The status quo could be improved by excluding researchers who have conflicts of interest. Nevertheless, if authors with competing interests are permitted to be part of the CiSG (as is the status quo), then I propose a novel option for increasing transparency that would require authors of the Consensus Statements to provide a reflexive explanation, not simply a declaration, of their competing interests. (shrink)

In recent years, political scientists have talked a great deal about the proper definition of their subject, and of how the ‘field’ of the political scientist is best distinguished from that of other social scientists. One proposal that is frequently made is that political science might quite properly be defined as the study of power, its forms, its sources, its distribution, its modes of exercise, its effects. The general justification for this proposal is, of course, that political activity itself appears (...) to be connected very intimately with power: it is often said that political activity is a struggle for power; that constitutions and other political institutions are methods of defining and regularising the distribution and the exercise of power, and so on. Since there seems to be some sense in which one can say that, within the wider area of social life, the political field is that which has some special connection with power, it may seem plausible then to suggest that the study of politics focusses upon the study of power. (shrink)

Information can be public among a group. Whether or not information is public matters, for example, for accounts of interdependent rational choice, of communication, and of joint intention. A standard analysis of public information identifies it with (some variant of) common belief. The latter notion is stipulatively defined as an infinite conjunction: for p to be commonly believed is for it to believed by all members of a group, for all members to believe that all members believe it, and so (...) forth. This analysis is often presupposed without much argument in philosophy. Theoretical entrenchment or intuitions about cases might give some traction on the question, but give little insight about why the identification holds, if it does. The strategy of this paper is to characterize a practical-normative role for information being public, and show that the only things that play that role are (variants of) common belief as stipulatively characterized. In more detail: a functional role for “taking a proposition for granted” in non-isolated decision making is characterized. I then present some minimal conditions under which such an attitude is correctly held. The key assumption links this attitude to beliefs about what is public. From minimal a priori principles, we can argue that a proposition being public among a group entails common commitment to believe among that group. Later sections explore partial converses to this result, the factivity of publicity and publicity from the perspective of outsiders to the group, and objections to the aprioricity of the result deriving from a posteriori existential presuppositions. (shrink)

There is currently little empirical information about attitudes towards cognitive enhancement - the use of pharmaceutical drugs to enhance normal brain functioning. It is claimed this behaviour most commonly occurs in students to aid studying. We undertook a qualitative assessment of attitudes towards cognitive enhancement by conducting 19 semi-structured interviews with Australian university students. Most students considered cognitive enhancement to be unacceptable, in part because they believed it to be unethical but there was a lack of consensus on whether it (...) was similar or different to steroid use in sport. There was support for awareness campaigns and monitoring of cognitive enhancement use of pharmaceutical drugs. An understanding of student attitudes towards cognitive enhancement is important in formulating future policy. (shrink)

Should we regard Jennifer Lackey’s ‘Creationist Teacher’ as understanding evolution, even though she does not, given her religious convictions, believe its central claims? We think this question raises a range of important and unexplored questions about the relationship between understanding, factivity and belief. Our aim will be to diagnose this case in a principled way, and in doing so, to make some progress toward appreciating what objectual understanding—i.e., understanding a subject matter or body of information—demands of us. Here is the (...) plan. After some ground clearing in §1, §2 outlines and motivates a plausible working model—moderate factivity—for characterising the sense in which objectual understanding should be regarded as factive. §3 shows how the datum that we can understand false theories can, despite initial suggestions to the contrary, be assimilated straightforwardly within the moderate factivity model. §4 highlights how the inverse kind of case to that explored in §3—viz., a variant of Lackey’s creationist teacher case—poses special problems for moderate factivity. With reference to recent work on moral understanding by Hills, §5 proposes a solution to the problem, and §6 attempts to diagnose why it is that we might originally have been led to draw the wrong conclusion. (shrink)

This essay is an inquiry into the relevance of psychology to morality-particularly, the relevance of a capacity to treat nature with respect and restraint to a responsibility to do so. I begin with a presentation of Aldo Leopold’s “land ethic”. I then examine two notions of moral psychology that have recently attracted the interest of moral philosophers: first, “the moral sense,” a concept that has gained prominence, in part, through the recent work of the philosopher, John Rawls; and second, Lawrence (...) Kohlberg’s theory of the development of moral cognition. Finally, I consider how these prospectives on moral psychology might apply to ecological morality. (shrink)

This paper presents a novel view of the concept of cognitive enhancement by taking a population health perspective. We propose four main modifiable healthy lifestyle factors for optimal cognitive functioning across the population for which there is evidence of safety and efficacy. These include i) promoting adequate sleep, ii) increasing physical activity, iii) encouraging a healthy diet, including minimising consumption of stimulants, alcohol and other drugs including nicotine, iv) and promoting good mental health. We argue that it is not ethical (...) to promote or sanction the use of pharmaceutical drugs as putative cognitive enhancers without acknowledging the adverse effects on population cognitive health of failing to encourage the pursuit of healthy behaviours. We conclude with recommendations to increase the public health relevance of bioethical analyses of the cognitive enhancement debate. (shrink)

Accompanying a series of visually and verbally challenging books for children, this manual provides teachers and parents with discussion plans, exercises and activities to guide children in an investigation of the philosophical ideas emerging from the storybooks.

Duchenne's muscular dystrophy (DMD), which affects 1/3500 live male births, involves a progressive degeneration of skeletal and cardiac muscle, leading to early death. The protein dystrophin is lacking in DMD and present, but defective, in the allelic, less severe, Becker muscular dystrophy and is also missing in the mdx mouse. Experiments on the mdx mouse have suggested two possible therapies for these myopathies. Implantation of normal muscle precursor cells (mpc) into mdx skeletal muscle leads to the conversion of dystrophin‐negative fibres (...) to ‐positive, with consequent improvement in muscle histology. Direct injectidn of dystrophin cDNA into skeletal or cardiac muscle also gives rise to dystrophin‐positive fibres. Although both appear promising, there are a number of questions to be answered and refinements to be made before either technique could be considered possible as treatments for myopathies in man. (shrink)

We review the various factors that limit adaptation by natural selection. Recent discussion of constraints on selection and, conversely, of the factors that enhance “evolvability”, have concentrated on the kinds of variation that can be produced. Here, we emphasise that adaptation depends on how the various evolutionary processes shape variation in populations. We survey the limits that population genetics places on adaptive evolution, and discuss the relationship between disparate literatures. BioEssays 22:1075–1084, 2000. © 2000 John Wiley & Sons, Inc.

Protagoras, of all the ancient philosophers, has perhaps attracted the most interest in modern times. His saying ‘Man is the measure of all things’ caused Schiller to adopt him as the patron of the Oxford pragmatists, and has generally earned him the title of the first humanist. Yet the exact delineation of his philosophcal position remains a baffling task. Neumann, writing on Die Problematik des ‘Homo-mensura’ Satzes in 1938,2 concludes that no certainty whatever can be reached on the meaning of (...) the dictum, since ‘man’, ‘measure’, and ‘things’ are all ambiguous, nor can we tell which of the three is the predicate. The time is past when it was believed that a man's philosophy could be understood apart from the events of his life and the circumstances of his age: yet in the case of Protagoras the historical method of approach has hardly been attempted, although the impact of environment was perhaps more decisive in the formation of philosophical concepts in the Greek world than anywhere else. The reality about which the Greek philosopher spoke had three aspects: it was either the one universe of physics, or the political unity, or God. For example, the book of Heracleitus Περ φσεως was divided into three chapters or logoi, About the Whole, a political, and a theological. Neither physics nor theology supplies from its own subject-matter the form in which this reality was described. (shrink)

Since the early 1980’s, with the clinical advent of in vitro fertilization resulting in so-called “test tube babies,” a wide array of ethical considerations and concerns regarding artificial womb technology (AWT) have been described. Recent breakthroughs in the development of extracorporeal neonatal life support by means of AWT have reinitiated ethical interest about this topic with a sense of urgency. Most of the recent ethical literature on the topic, however, pertains not to the more imminent scenario of a physiologically improved (...) method of neonatal care through AWT, but instead to the remote scenario of “complete ectogenesis” that imagines human gestation occurring entirely outside of the womb. This scoping review of the ethical literature on AWT spans from more abstract concerns about complete ectogenesis to more immediate concerns about the soon-to-be-expected clinical life support of what we term the fetal neonate or fetonate. Within an organizing framework of different stages of human gestational development, from conception to the viable premature infant, we discuss both already identified and newly emerging ethical considerations and concerns regarding AWT and the care of the fetonate. (shrink)

Professional sports with high rates of concussion have become increasingly concerned about the long-term effects of multiple head injuries. In this context, return-to-play decisions about concussion generate considerable ethical tensions for sports physicians. Team doctors clearly have an obligation to the welfare of their patient (the injured athlete) but they also have an obligation to their employer (the team), whose primary interest is typically success through winning. At times, a team’s interest in winning may not accord with the welfare of (...) an injured player, particularly when it comes to decisions about returning to play after injury. Australia’s two most popular professional football codes—rugby league and Australian Rules football—have adopted guidelines that prohibit concussed players from continuing to play on the same day. I suggest that conflicts of interest between doctors, patients, and teams may present a substantial obstacle to the proper adherence of concussion guidelines. Concussion management guidelines implemented by a sport’s governing body do not necessarily remove or resolve conflicts of interest in the doctor–patient–team triad. The instigation of a concussion exclusion rule appears to add a fourth party to this triad (the National Rugby League or the Australian Football League). In some instances, when conflicts of interest among stakeholders are ignored or insufficiently managed, they may facilitate attempts at circumventing concussion management guidelines to the detriment of player welfare. (shrink)

Concussion and Mild Traumatic Brain Injury affect millions of people worldwide. mTBI has been called the “signature injury” of the recent conflicts in Iraq and Afghanistan, affecting thousands of active duty service men and women, and veterans. Sport-related concussion represents a significant public health problem, with elite and professional athletes, and millions of youth and amateur athletes worldwide suffering concussions annually. These brain injuries have received scant attention from neuroethicists, and the focus of this special issue is on defining the (...) ethical considerations and developing and elucidating the neuroethical contributions to the discussion about concussion and mTBI. (shrink)

The United Nations Convention on the Rights of the Child risks harm to adolescents insofar as it encourages not only poor decision making by adolescents but also parenting styles that will have an adverse impact on the development of mature decision-making capacities in them. The empirical psychological and neurophysiological data weigh against augmenting and expression of the rights of children. Indeed, the data suggest grounds for expanding parental authority, not limiting its scope. At the very least, any adequate appreciation of (...) the moral claims regarding the authority of parents with respect to the decision-making capacity of adolescents needs to be set within an understanding of the psychological and neurophysiological facts regarding the development of adolescent decision-making capacity. (shrink)

Neuroscience research has improved our understanding of the long term consequences of sports-related concussion, but ethical issues related to the prevention and management of concussion are an underdeveloped area of inquiry. This article exposes several examples of conflicts of interest that have arisen and been tolerated in the management of concussion in sport (particularly professional football codes) regarding the use of computerized neuropsychological (NP) tests for diagnosing concussion. Part 1 outlines how the recommendations of a series of global protocols for (...) dealing with sports-related concussions (the 1st, 2nd and 3rd Consensus Statements on Concussion in Sport) have endorsed the use of NP testing. The development of these protocols has involved experts who have links with companies that sell computerised NP tests for concussion management. Part 2 describes how some professional football leagues—in particular the National Football League (NFL), the Australian Football League (AFL) and the National Rugby League (NRL)—have mandated specific NP testing products. They have done so on the basis of these international guidelines and by engaging experts who have conflicts of interest with NP testing companies. These decisions have also been taken despite evidence that casts doubt on the reliability and validity of NP tests when used in these ways. (shrink)

The achievements of the textile industry in Roman Britain are often underestimated as a result of the meagreness of our available evidence. The Edict on maximum prices issued by Diocletian in A.D. 301 shows that British capes commanded high prices on the markets of the Empire, and that in the late third century A.D. British rugs were the best in the world. In view of the competition from the traditional centres of rug manufacture in the East, this is an astonishing (...) achievement. (shrink)

The received translation and interpretation of many of the technical terms current in the textile industry of the Roman Empire are inaccurate, because lexicographers have either fought shy of being precise, or have thought that they recognized in the ancient world technical processes which originated at a much later date. The evidence is often equivocal or insufficient, but may still yield details that have been overlooked. The textile expression scutulatus, to take an example, deserves more attention than Blümner has devoted (...) to it. When it refers to the appearance of a garment, Lewis and Short, s.v. scutulatus, translate ‘diamond or lozenge-shaped, checkered’. It seems worth while to attempt a more precise translation, and, if possible, to estimate the significance in context of the goods so designated. (shrink)

Debates about the ethical and social implications of research that aims to extend human longevity by intervening in the ageing process have paid little attention to the attitudes of members of the general public. In the absence of empirical evidence, conflicting assumptions have been made about likely public attitudes towards life-extension. In light of recent calls for greater public involvement in such discussions, this target article presents findings from focus groups and individual interviews which investigated whether members of the general (...) public identify ethical issues surrounding life-extension, and if so, what these ethical issues are? In this study, while some participants were concerned primarily with the likely personal consequences of life-extension, for others the question of whether or not to pursue interventions to extend longevity, and how they should be implemented, clearly raised important ethical issues, many of which have been prominent in debates among bioethicists. (shrink)

If the world itself is metaphysically indeterminate in a specified respect, what follows? In this paper, we develop a theory of metaphysical indeterminacy answering this question.

Moral and legal notions engaged in clinical ethics should not only possess analytic clarity but a sound basis in empirical findings. The latter condition brings into question the expansion of the mature minor exception. The mature minor exception in the healthcare law of the United States has served to enable those under the legal age to consent to medical treatment. Although originally developed primarily for minors in emergency or quasi-emergency need for health care, it was expanded especially from the 1970s (...) in order to cover unemancipated minors older than 14 years. This expansion initially appeared plausible, given psychological data that showed the intellectual capacity of minors over 14 to recognize the causal connection between their choices and the consequences of their choices. However, subsequent psychological studies have shown that minors generally fail to have realistic affective and evaluative appreciations of the consequences of their decisions, because they tend to over-emphasize short-term benefits and underestimate long-term risks. Also, unlike most decisionmakers over 21, the decisions of minors are more often marked by the lack of adequate impulse control, all of which is reflected in the far higher involvement of adolescents in acts of violence, intentional injury, and serious automobile accidents. These effects are more evident in circumstances that elicit elevated affective responses. The advent of brain imaging has allowed the actual visualization of qualitative differences between how minors versus persons over the age of 21 generally assess risks and benefits and make decisions. In the case of most under the age of 21, subcortical systems fail adequately to be checked by the prefrontal systems that are involved in adult executive decisions. The neuroanatomical and psychological model developed by Casey, Jones, and Summerville offers an empirical insight into the qualitative differences in the neuroanatomical and neuropsychological bases of adolescent versus adult decision making. These and other data, as well as developing law bearing on the culpability of juvenile criminal offenders, argue for critically re-evaluating the expansion of the mature minor exception with regard to medical decision making, as well as in support of a rebuttable presumption in favor of treating minors as immature decisionmakers. The clinical ethics of adolescent medical decision making will need foundationally to be reconsidered. (shrink)

Student engagement and making community happen is a policy manoeuvre that shapes the political subjectivity of the undergraduate student In Australia, making community happen as a practice of student engagement is described as one of the major challenges for policy and practice in research-led universities. Current efforts to meet this challenge, however, merely recode ethical citizenship to a different but nonetheless prescriptive code of conduct,which closes down thoughts of making community happen to a single unified mode of being by appealing (...) to a normalising practice authorised by expert knowledge. In contrast to this position, we use data gathered from undergraduate students’ observations of their university experience, which appeals to an ethico-politics that opens up the question of making community happen to non-normalising practices.Rather than a will to govern that shuts down debate, student discourse opens up thoughts of making community happen to new contestations and diversity over self-government in relation to others concerning questions of lifestyle choices and friendships. In this way,we argue that making community happen as a practice of student engagement is never fully actualised.While this challenge to the limits of student engagement and making community happen may be seen as a threat to our political existence, it is, nevertheless, a risk worth taking in the interest of student learning. (shrink)

In this article I try to refute the so-called "libertarian" theory of free will, and to examine how our conclusion ought to modify our common attitudes of praise and blame. In attacking the libertarian view, I shall try to show that it cannot be consistently stated. That is, my dscussion will be an "analytic-philosophic" one. I shall neglect what I think is in practice an equally powerful method of attack on the libertarian: a challenge to state his theory in such (...) a way that it will fit in the modern biology and psychology, which are becoming increasingly physicalistic. (shrink)

Adolescents present a puzzle. There are foundational unclarities about how they should be regarded as decision-makers. Although superficially adolescents may appear to have mature decisional capacity, their decision-making is in many ways unlike that of adults. Despite this seemingly obvious fact, a concern for the claims of autonomy has led to the development of the legal doctrine of the mature minor. This legal construct considers adolescents, as far as possible, as equivalent to adults for the purpose of medical decision-making. The (...) movement to support independent decision-making by adolescents through providing information to them and securing their consent apart from their parents is encouraged by those legal understandings that hold that unemancipated minors should generally be considered as possessing effective decisional capacity. Such legal structures, however, do not adequately take account of the wide variations in adolescent capacities, the immaturity of most adolescent decision-makers, or the important contributions made by parents to the development of their adolescents through parental partnering in the adolescent’s decision-making. The data available indicate that in general adolescents should be regarded as apprentice decision-makers who should make decisions in collaboration with their parents until at least the age of 18. Steps should not be taken pre-emptively to isolate adolescents from the guidance of their parents. As a general rule, what Piker has referred to as “collaborative paternalism” appears most likely both to protect adolescents from their own untoward choices, while also very importantly helping them with parental guidance to develop into mature decision-makers with the capacity to make medical choices on their own. (shrink)