Cross-situational learning is a mechanism for learning the meaning of words across multiple exposures, despite exposure-by-exposure uncertainty as to the word's true meaning. We present experimental evidence showing that humans learn words effectively using cross-situational learning, even at high levels of referential uncertainty. Both overall success rates and the time taken to learn words are affected by the degree of referential uncertainty, with greater referential uncertainty leading to less reliable, slower learning. Words are also learned less successfully and more slowly (...) if they are presented interleaved with occurrences of other words, although this effect is relatively weak. We present additional analyses of participants’ trial-by-trial behavior showing that participants make use of various cross-situational learning strategies, depending on the difficulty of the word-learning task. When referential uncertainty is low, participants generally apply a rigorous eliminative approach to cross-situational learning. When referential uncertainty is high, or exposures to different words are interleaved, participants apply a frequentist approximation to this eliminative approach. We further suggest that these two ways of exploiting cross-situational information reside on a continuum of learning strategies, underpinned by a single simple associative learning mechanism. (shrink)

This paper analyses the activities of five organizations shaping the debate over the global governance of genome editing in order to assess current approaches to public engagement (PE). We compare the recommendations of each group with its own practices. All recommend broad engagement with the general public, but their practices vary from expert-driven models dominated by scientists, experts, and civil society groups to citizen deliberation-driven models that feature bidirectional consultation with local citizens, as well as hybrid models that combine elements (...) of both approaches. Only one group practices PE that seeks community perspectives to advance equity. In most cases, PE does little more than record already well-known views held by the most vocal groups, and thus is unlikely to produce more just or equitable processes or policy outcomes. Our exploration of the strengths, weaknesses, and possibilities of current forms of PE suggests a need to rethink both “public” and “engagement.”. (shrink)

The current ethical norms of genomic biobanking creating and maintaining large repositories of human DNA and/or associated data for biomedical research have generated criticism from every angle, at both the practical and theoretical levels. The traditional research model has involved investigators seeking biospecimens for specific purposes that they can describe and disclose to prospective subjects, from whom they can then seek informed consent. In the case of many biobanks, however, the institution that collects and maintains the biospecimens may not itself (...) be directly involved in research, instead banking the biospecimens and associated data for other researchers. Moreover, the future uses of biospecimens may be unknown, if not unknowable, at the time of collection. Biobanking may thus stretch the meanings of inform and consent to their breaking point: if you cannot inform subjects about what their biospecimens will be used for, what can they consent to? Given that informed consent by individual subjects is the ethical gold standard, the seeming dilution of the concept in the context of biobanking is a profound problem. (shrink)

Mark Johnson argues in favour of embodied experience as the basis for knowledge. An important implication of his analysis is that these experiences instigate pervasive metaphorical systems. Johnson 's argument involves reductionist problems, chicken-and-egg problems and, at times, unclear criteria for what counts as a basic experience and a metaphor.

Most content externalists concede that even if externalism is compatible with the thesis that one has authoritative self-knowledge of thought contents, it is incompatible with the stronger claim that one is always able to tell by introspection whether two of one’s thought tokens have the same, or different, content. If one lacks such authoritative discriminative self-knowledge of thought contents, it would seem that brute logical error – non-culpable logical error – is possible. Some philosophers, such as Paul Boghossian, have argued (...) that this would present a big problem for externalism, forcing the externalist to overhaul our norms of rationality. I consider several externalist strategies to block this possibly unhappy epistemological consequence, but I argue that they all fail. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:What Did the Romans Know? An Inquiry into Science and Worldmaking by Daryn LehouxJohn M. OksanishDaryn Lehoux. What Did the Romans Know? An Inquiry into Science and Worldmaking. Chicago, Ill.: University of Chicago Press, 2012. xii + 275 pp. 10 black-and-white figs., 2 tables. Cloth, $45.“Have we ever been modern?” Thus author Daryn Lehoux expresses one of the fundamental questions underlying the book under review, which seeks to (...) present a historicizing account of the various lenses through which elite Romans in the late Republic and early Empire understood and, importantly, expressed their understanding of our world. I say “our” world because, as Lehoux makes clear from the beginning of this fascinating, if sometimes challenging, monograph, continuity with our scientific forebears is as fundamental a key to accessing their ambitions, limits, and scope, as are our divergences from them. In this sense, What Did the Romans Know? provides a kind of study in the reception of Roman sciences, whose plurality, interdependence, and context-specific viability are emphasized throughout. For although (1) physical realities have per se not [End Page 343] changed since antiquity, and (2) how we regard and describe them has, Lehoux insinuates that our own laws of nature remain limited by specific ontological and rhetorical constraints—“blind spots”—that render our modern science in some ways comparable with the sciences that operated in antiquity. By first emphasizing various contexts (epistemological, ontological, etc.) and showing readers how the ancient sciences operated within them, Lehoux effectively shows us that ancient sciences did indeed work, even astrology. However, Lehoux ultimately reveals himself as a scientific realist: the contextual viability of the ancient sciences notwithstanding, he does not believe in a Lucretian “swerve” but in atoms, electrons, and other phenomena that he has never seen directly. That he waits until the ninth chapter (200) for this admission to materialize fully is surely purposeful, but it can sometimes make for disorienting reading. Equally disorienting is the book’s tendency to present ancient scientific terms with little or no explanation (e.g., equant, 68; synodic anomaly, 69), while terms whose specific valences will be well-known to many readers of this journal (e.g., religio, 26; pietas, 27) are glossed, sometimes simplistically. Despite this and a few other caveats, however, Lehoux has broadly succeeded at a very difficult task, i.e., presenting ancient science in a manner that is accessible and interesting to Classicists of various stripes, while simultaneously delivering classical texts to historians of science through an essentially new historicist lens.The first three chapters provide examples from and discussions of selected texts that show the Romans making links between nature and law in science, religion (especially divination), and in legal theories. We quickly learn that Lehoux’s is not a book about Romans who merely applied Greek theories in the interest of technology or about the ways in which slave-power made an ancient industrial revolution unnecessary at Rome (the so-called blocage question, discussed by Serafina Cuomo in Technology and Culture in Greek and Roman Antiquity [Cambridge, 2007]). Rather, this is a book about science as a reflection of, and participant in, the creation of Roman ideology and society. Any good discussion of Roman-ness at the end of the Republic inevitably involves a good deal of Cicero, who conveniently, and thus perhaps problematically, provides ample discussion of the kinds of topics in which Lehoux is interested, especially divination. Cicero’s apparently contradictory positions on the practice (Leg. 2.32 and Div. 2.74) are noted, as is the movement in the past thirty years away from the “naive” reading of De Divinatione as a “vigorous rationalistic protest” against a national superstition. Divination, for Lehoux’s Cicero, is neither an intellectual offense nor a politically expedient fiction; rather, it is a thoroughly Roman way of both seeing the world and doing business. Some of what is found here will not be new to classicists, and the chapter overall seems less interested in breaking new ground than in establishing, in deliberate fashion, the book’s foundational interest in seeing nature, law, and religion as legitimately connected. Divination and other phenomena reflect a Roman interest in a kind... (shrink)

The obligation of a court to follow the law of a superior court is commonly taken to be stronger than the obligation of the higher court to respect its own precedent. The Supreme Court has recently asserted this stronger obligation in the most forceful terms. What follows is an attempt to demonstrate that this is wrong as a matter of policy and as a matter of law.

In this paper I try to defend three claims: first, that there is a requirement to aid and a correlative right to be aided; second, that the conditions under which this right applies can be precisely stated and given a convincing contractualist rationale; and third, that the existence of this right has no relevance for the justifiability of social welfare programs.

In this article, two dance educators offer a definition of rhythm from both educational and performance perspectives and discuss pedagogical practices that waken students’ awareness to rhythm as a lived-experience over which they have creative control. For the dancer, in the midst of the dance, rhythms are, in the words of Margaret H’Doubler, recurring patterns of measured energy. These patterns are nested in scales from the moment-to-moment shifts in muscular contraction and release to the rise and fall of dramatic tension (...) in a performed dance. This approach to rhythm runs counter to many dance students’ studio-based training in which rhythm is equated to synchronizing accents to a specific meter. The authors describe pedagogical practices in the studio that foster engagement with rhythm as lived-experience. Drawing attention to their kinesthetic experience while moving, students are encouraged to modulate levels of exertion embedded in the qualities of movement they are experiencing. As varying levels of exertion are attended to across temporal durations, students notice patterns as they emerge and recur. This attention to recurring patterns of measured exertion is, the authors claim, the lived-experience of rhythm in dance. (shrink)

The image of God in the Bible is a projection of the normal human, raised to the highest degree. This excludes the human body which is different. Knowledge itself is based in bodily experience, and a starting place for a theology of disability may be found in the phenomenology of different bodies. When philosophers and theologians use the image of the face of God, this hegemony of the average is particularly noticeable. Blind people are only one of a number of (...) human experiences without the face, and if the theological tradition is to be redeemed from the dominance of exclusion, the image of God must be poly-anthropomorphic rather than uniform. (shrink)

It should be well known that the philosophy of soren Kierkegaard exerted considerable inflence upon Ibsen the playwright, despite the latter's reluctance to admit as much. When Ibsen's play Brand was first published in Copenhagen, in 1866, it was hailed as a dramatic representation of Kierkegaar's philosophy, and subsequent critics have also indicated in a general way the Kierkegaardian concepts with which this play abounds. The earlier Love's comedy is also vibrant with Kierkegaardian undertones, and the fact that something of (...) this same quality is echoed and re-echoed throughout the playwrite's entire corpus suggest something more than a merely literary influences: it indicates a temperamental affinity between the two authors. (shrink)

Philip B. Heymann, Terrorism, Freedom and Security: Winning Without War Cambridge, MA: MIT Press 2003, pp. 288 #pl x.

In order to do anything intelligently a certain degree of reflection is necessary. This is particularly obvious with regard to any practical activity or occupation. Take, for example, the case of a naїve bricklayer. Let us assume that this man never reflects upon the nature of his occupation, but simply looks upon it as a more or less mechanical procedure of laying one brick upon another for a certain period of time during the day. He does not relate his occupation (...) with the occupations of his fellow–workmen, or even with the purpose of erecting buildings. If such a man were left to his own devices on a desert island with a plentiful supply of bricks and mortar, we could imagine him erecting a gigantic pinnacle of bricks, without purpose or meaning, where a more intelligent man would have endeavoured to construct a shelter against the rigours of the climate. (shrink)