Cross-education is the phenomenon in which repeated practice of a unilateral motor task does not only result in performance improvement of the trained limb, but also in the untrained contralateral limb. The aim of this study was to test whether cross-education or positive transfer of learning is also achieved for tasks in which both limbs contribute in different ways by using modified equipment that switches the limbs’ role. To this end, a reverse field hockey stick was used that requires a (...) mirroring of arm and hand use and dominance. Two groups of young skilled female field hockey players participated in a crossover-design, in which participants received four training sessions with a reverse hockey stick followed by four training sessions with a regular hockey stick, or vice versa. In a pre-test, intermediate test, a post-test and a retention test, participants’ performance on a field hockey skill test with a regular hockey stick was measured. The results revealed that training with the reversed hockey stick led to significantly increased improvements compared to training with a regular hockey stick. We conclude that modified equipment can be used to exploit positive transfer of learning by switching the limbs’ roles. The findings are discussed by referring to the symmetry preservation principle in dynamic systems theory and have clear practical relevance for field hockey trainers and players seeking to further improve field hockey skills. (shrink)

Contrary to Hoerl & McCormack, we argue that the best account of temporal cognition in humans is one in which a single system becomes capable of representing time. We suggest that H&M's own evidence for dual systems of temporal cognition – simultaneous contradictory beliefs – does not recommend dual systems, and that the single system approach is more plausible.

There is an undercurrent to be detected in Anselm's record of the meditative experience that issued in the Ontological Argument and, although it points to a profound and perennial problem in the interpretation of religion, this undercurrent has been largely ignored. The Argument, as is well known, moves entirely within the medium of reflective meaning focused on the idea of God and, unlike the cosmological arguments of later theologians, it makes no appeal whatever to a principle of causality or to (...) the discovery of a sufficient reason for finite existence. Anselm seems to have had his own sense of what one may call the unadulterated rationalism of the Argument when, in his own words, he wondered, ‘if perhaps it might be possible to find one single argument that for its proof required no other save itself, and that by itself would suffice to prove that God really exists’. Here we are entirely within that inner chamber of the mind so dear to the Augustinian tradition, a mind from which one is to exclude all thought save that of God. The task of the one who reflects is to penetrate the inner meaning of this thought in order to discover what it implies beyond what is evident on the surface. With such an eminently rational or logical aim occupying the centre of attention, it is quite understandable that the presence of another, and quite opposed, concern should have been overlooked - Anselm's concern, namely, to transcend, as it were, the medium of thought itself, and enter into the presence of God. The reason that this concern introduces a tension in the search for a proof is that the realization of presence would seem to render proof superfluous, while the inference in an argument - especially one moving towards existence – inevitably suggests, in some sense and to some degree, the absence of what is sought for. (shrink)

Some decades ago in his intriguing book on Jonathan Edwards, Perry Miller used to great effect the device of supposing a two-fold biography of Edwards, an external one consisting of the historical record embracing the major events of his life and times, and an internal one aimed at an interpretation of the mind of Edwards and the development of his thought.

Deeply moved by his experiences in the trenches of the First World War, the Scottish philospher John Macmurray came to challenge the conventions inherited from European traditions of thought and mounted an assault on impersonal philosophies that failed to address needs and emotional reality.

Although Paton depends for his materials on virtually all of Kant's writings on moral philosophy, he makes the Grundlegung zur Metaphysik der Sitten central to his analysis. This is a wise choice and one that is defensible since Paton has set for himself the task of elucidating the categorical imperative and it is in the Grundlegung that Kant sought to grasp the supreme principle of morality and its appearance to us as a categorical imperative. Despite the fact that, as the (...) author points out on many occasions, the Grundlegung neither stresses morality from the standpoint of action, nor does it deal in detail with many significant problems, it must nevertheless always be looked upon as central to Kant's ethics just because it does deal with the supreme principle as a categorical imperative. The seemingly more authoritative Critique of Practical Reason is more definitely concerned with the larger subject of reason in its practical employment and does not deal as directly with Paton's special concern as the Grundlegung does. (shrink)

Imagine a society of fisherfolk, who, in the state of nature, fish on a lake of finite size. Fishing on the lake is characterized by decreasing returns to scale in labor, because the lake's finite size imply that each successive hour of fishing labor is less effective than the previous one, as the remaining fish become less dense in the lake. In the state of nature, the lake is commonly owned: each fishes as much as he pleases, and, we might (...) suppose, calculates his fishing plan by taking the labor of the others as given, as he sees it. Each knows that the distribution of fish will be proportional to labor expended among the fisherfolk: if I fish twice as long as you, I will end up with twice as much fish as you. This is not due to some kind of concern with equity among the fisherfolk; it is a technological fact, implied by the assumption that fishing labor is homogeneous, and all are equally likely to catch a fish in a unit of time. An equilibrium under common ownership can be thought of as a Nash equilibrium of the game where each computes his optimal fishing plan, given the labor of the others and knowing what the consequent distribution of fish would be. (shrink)

Burt formulates her critique at a general level of abstraction that highlights the methodological deficiencies of sociogenomics without also calling attention to precisely the same deficiencies in the social science model she seeks to defend against its encroachments. What might have been a methodological bulwark against the excesses of sociogenomics is instead a one-sided critique that merely renews its charter.

Features of gait are determined at multiple levels, from the selection of the gait itself (e.g. walk or run) through the specific parameters utilized (stride length, frequency, etc.) to the pattern of muscular excitation. The ultimate choices are neurally determined, but what is involved with that decision process? Human locomotion appears stereotyped not so much because the pattern is predetermined, but because these movement patterns are good solutions for providing movement utilizing the machinery available to the individual (the legs and (...) their requisite components). Under different circumstances the appropriate solution may differ broadly (different gait) or subtly (different parameters). Interpretation of the neural decision making process would benefit from understanding the influences that determine the selection of the appropriate solution in any set of circumstances, including that of normal conditions. In this review we survey an array of studies that point to energetic cost as a key input to the gait coordination system, and not just an outcome of the gait pattern implemented. We then use that information to rigorously define the construct proposed by Sparrow and Newell (1998) where the effects of environment, organism and task act as constraints determining the solution set available, and the coordination pattern is then implemented under a pressure for energetic economy. Environment is defined in terms of affordances based on the ecological psychology definition of the concept and organism is defined as classic morphology and physiology based capabilities. We rely on a novel conceptualization of task that recognizes that the task goal needs to be separated from the mechanisms that achieve the goal if the motivation behind the selection of the mechanism strategy is to be exposed and understood. This reformulation of the Sparrow and Newell construct is then linked to the proposed pressure for economy by considering it as an optimization problem, where the most readily selected gait strategy will be that which achieves the task goal at (or near) the energetic minimum. (shrink)

Can a human society be constrained in such a way that self-organization will thereafter tend to produce outcomes that advance the goals of the society? Such a society would be self-organizing in the sense that individuals who pursue only their own interests would none-the-less act in the interests of the society as a whole, irrespective of any intention to do so. The paper sketches an agent-based model that identifies the conditions that must be met if such a self-organizing society is (...) to emerge. The model draws heavily on an understanding of how self-organizing societies have emerged repeatedly during the evolution of life on Earth. The model demonstrates that the key enabling requirement for a self-organizing society is ‘consequence-capture’. Broadly this means that all agents in the society must capture sufficient of the beneficial consequences of their actions for the goals of the society. ‘Consequence-capture’ can be organized in a society by appropriate management that suppresses free riders and supports pro-social actions. In human societies these constraints include institutions such as systems of governance and social norms. If a self-organizing society is to emerge, consequence-capture must apply to all agents in the society, including those involved in the establishment and adaptation of institutions. If this is achieved, the result will be a fully self-organizing society in which the interests of all agents are aligned with the interests of the society as a whole. (shrink)

My assigned task is to lay out the shape of my father's life and faith. This is daunting, but it is also a privilege because I loved him and admired him, and his life has been central in shaping my own. I am speaking also on behalf of my mother, my three sisters, Bridget, Louise and Ellie, and our children, Catherine and Andrew, Sam and Anisa, Hannah and Matty.

This article defines a public good, arguing that higher education should be considered a public good. This requires moving away from an orthodox economistic understanding of public goods. It also requires understanding the relationship between higher education as both a private good and a public good to the extent that it promotes individual flourishing necessary to the public good.

Perceptual judgments result from a dynamic process, but little is known about the dynamics of number‐line estimation. A recent study proposed a computational model that combined a model of trial‐to‐trial changes with a model for the internal scaling of discrete numbers. Here, we tested a surprising prediction of the model—a situation in which children's estimates of numerosity would be better than those of adults. Consistent with the model simulations, task contexts led to a clear developmental reversal: children made more adult‐like, (...) linear estimates when to‐be‐estimated numbers were descending over trials (i.e., backward condition), whereas adults became more like children with logarithmic estimates when numbers were ascending (i.e., forward condition). In addition, adults’ estimates were subject to inter‐trial differences regardless of stimulus order. In contrast, children were not able to use the trial‐to‐trial dynamics unless stimuli varied systematically, indicating the limited cognitive capacity for dynamic updates. Together, the model adequately predicts both developmental and trial‐to‐trial changes in number‐line tasks. (shrink)

In this essay, I consider whether there is a place for trust in the American constitutional order and what it means if there is. In particular, I argue that a constitutional way of life requires a certain kind of trust, what I shall call civic trust, which I describe as an attitudinal disposition to engagement and cooperation with others in the shared project of constitutional self-governance. Civic trust is a specific conception of trust; it has a public as well as (...) a private character and it is an essential component of a healthy and successful constitutional regime. In short: civic trust is a constitutional good. Its absence in our public life is not only a marker but also a cause of constitutional dysfunction. (shrink)

All advanced societies maintain a commitment to equal educational opportunity, which they claim to implement through a public school system that is charged toprovide all children with an education up to a state-enforced standard. Indeed, what public schools do, even in the best of circumstances, is to provide all children with a more or less equal exposure to educational inputs, rather than to guarantee them equal educational attainment. Children, as the schools receive them, differ markedly in their docility — due (...) in part to innate ability, but perhaps due more to the economic status and cultural practices of their families. Many, including myself, believe that the task of schools should be to provide some measure of equal educational attainment among students of heterogeneous talent and background. Schools should devote more educational resources to students who require them in order that they be educated to an acceptable standard. (shrink)

This essay tracks the movement in Édouard Glissant’s work from thinking relationality as creolisation to Relation as such, to a globalised sense of cultural contact and transformation he ca...

What does Édouard Glissant have to contribute to theorizing decolonization and a philosophy of difference? And how is this contribution tied to rethinking place (from Caribbean to Caribbeanness) and world (comprised of creolized culture and identity)? This essay takes up Glissant’s work in the context of questions of history and memory, with particular focus on how historical experience grounds philosophical work on place and world through articulations of identity, language, cultural production, and thinking after catastrophe. Drawing from a contrast with (...) Martin Heidegger and Walter Benjamin, this essay shows how Glissant’s critical concept “creolization” works as an expression of what I call “the afropostmodern,” and also as an important contribution to decolonial theories of world, culture, memory, language, and subjectivity after the Middle Passage. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Jonathan Edwards's Philosophy of History: The Reenchantment of the World in the Age of EnlightenmentJohn E. SmithAvihu Zakai. Jonathan Edwards's Philosophy of History: The Reenchantment of the World in the Age of Enlightenment. Princeton: Princeton University Press, 2003. Pp. xvii + 348. Cloth, $49.95.Edwards's History of Redemption is the focus of this study by Avihu Zakai—Professor of History at the Hebrew University in Jerusalem. The History is a (...) series of thirty sermons Edwards preached on Isaiah 51:8 "... my righteousness shall be forever... my salvation from generation to generation." For him, it was a "new method in divinity... thrown into the form of a history"—a narrative showing God's sovereignty in redemption "from the fall of man to the end of the world."Zakai gives a comprehensive account of Edwards's view of history meant to highlight his struggle against modern beliefs threatening Christian faith (308; passim). The discussion is not limited to history, but includes most of Edwards's writing from 1720-1750 with emphasis on his opposition to the Enlightenment. Zakai cannot interpret so many works with the accuracy needed; he repeats old errors such as opposing the "head" and "heart" in the Affections and minimizing Edwards's respect for "common morality" in the ethical writings. Zakai is right in saying that Edwards insisted on God's authority over the world and history, but he puts it in such absolutistic terms that he often seems to abandon historical analysis in favor of exhortation.Zakai's best contribution is in his search for the general framework of God's redemption of the "engine" driving history (120ff.; 213ff.). He finds the answer in "seasons" of revival such as the Great Awakening. This is true, but Edwards notes other special events like the Reformation that "promoted the work of redemption" (Works, 9. 272), but are not revivals in the usual sense. For Edwards, special events are of many kinds and are identified by interpretation based on God's Providence. As Miller claimed, interpretation is essential; without it we may have a chronicle of events, but no history. Zakai seems to underestimate this point and the many problems it poses.The book strikes me as one more attempt—George Marsden's recent book, Jonathan Edwards: A Life (New Haven, 2003), is another—to rescue Edwards from "profane" interpreters like Miller who saw that Edwards learned from the Enlightenment even though he challenged many of its ideas. In my view, Edwards can well take care of himself.John E. SmithYale UniversityCopyright © 2004 Journal of the History of Philosophy, Inc.... (shrink)

This essay argues that the book of Ruth's reopening of Israel's history and national mythology functions in such a way as to redeem, as it were, the plight of the subaltern Moabite—a plight begun with the daughters of Lot in Genesis 19. A parallel is then drawn with the 1619 Project, the recent journalistic project which posits the entire historical sweep of African slavery in North America since 1619 as the defining arc of the United States' founding. As theoretical frames, (...) the essay draws on the work of literary critic Gayatri Chakravorty Spivak (including her concept of “moral love”) and political philosopher Arash Abizadeh. In so doing, the essay illustrates how a “functionalist” approach to biblical ethics that balances the content of the biblical narrative with attention to how the text functions in its broader context can provide guidance for contemporary ethical application. (shrink)

Three experiments demonstrated that decisions resulting in considerable amounts of profit, but missed alternative outcomes of greater profits, were rated lower in quality and produced more regret than did decisions that returned lesser amounts of profit but either did not miss or missed only slightly better alternatives. These effects were mediated by upward counterfactuals and moderated by participants’ orientation to the decision context. That decision evaluations were affected by the availability and magnitude of alternative outcomes rather than the positivity of (...) actual outcomes is counter to the outcome bias effect—a bias in which decisions are rated more positively when they led to more positive outcomes. Experiment 3 demonstrated that these effects represent a bias that occurs even when it is clear that the process by which decisions were made followed rational decision processes. This research suggests that when alter.. (shrink)

Some ‘naturalist’ accounts of disease employ a biostatistical account of dysfunction, whilst others use a ‘selected effect’ account. Several recent authors have argued that the biostatistical account offers the best hope for a naturalist account of disease. We show that the selected effect account survives the criticisms levelled by these authors relatively unscathed, and has significant advantages over the BST. Moreover, unlike the BST, it has a strong theoretical rationale and can provide substantive reasons to decide difficult cases. This is (...) illustrated by showing how life-history theory clarifies the status of so-called diseases of old age. The selected effect account of function deserves a more prominent place in the philosophy of medicine than it currently occupies. _1_ Introduction _2_ Biostatistical and Selected Effect Accounts of Function _3_ Objections to the Selected Effect Account _3.1_ Boorse _3.2_ Kingma _3.3_ Hausman _3.4_ Murphy and Woolfolk _4_ Problems for the Biostatistical Account _4.1_ Schwartz _5_ Analysis versus Explication _6_ Explicating Dysfunction: Life History Theory and Senescence _7_ Conclusion. (shrink)

Our objective is to test an optimality model of human fertility that specifies the behavioral requirements for fitness maximization in order (a) to determine whether current behavior does maximize fitness and, if not, (b) to use the specific nature of the behavioral deviations from fitness maximization towards the development of models of evolved proximate mechanisms that may have maximized fitness in the past but lead to deviations under present conditions. To test the model we use data from a representative sample (...) of 7,107 men living in Albuquerque, New Mexico, between 1990 and 1993. The model we test proposes that low fertility in modern settings maximizes number of grandchildren as a result of a trade-off between parental fertility and next generation fertility. Results do not show the optimization, although the data do reveal a trade-off between parental fertility and offspring education and income.We propose that two characteristics of modern economies have led to a period of sustained fertility reduction and to a corresponding lack of association between income and fertility. The first is the direct link between costs of investment and wage rates due to the forces of supply and demand for labor in competitive economies. The second is the increasing emphasis on cumulative knowledge, skills, and technologies in the production of resources. Together they produce historically novel conditions. These two features of modern economies may interact with evolved psychological and physiological mechanisms governing fertility and parental investment to produce behavior that maximizes the economic productivity of lineages at the expense of fitness. If cognitive processes evolved to track diminishing returns to parental investment and if physiological processes evolved to regulate fertility in response to nutritional state and patterns of breast feeding, we might expect non-adaptive responses when returns from parental investment do not diminish until extremely high levels are reached. With high economic payoffs from parental investment, people have begun to exercise cognitive regulation of fertility through contraception and family planning practices. Those cognitive processes maynot have evolved to handle fitness trade-offs between fertility and parental investment. (shrink)