Recent advances in the field of statistical learning have established that learners are able to track regularities of multimodal stimuli, yet it is unknown whether the statistical computations are performed on integrated representations or on separate, unimodal representations. In the present study, we investigated the ability of adults to integrate audio and visual input during statistical learning. We presented learners with a speech stream synchronized with a video of a speaker’s face. In the critical condition, the visual (e.g. /gi/) and (...) auditory (e.g. /mi/) signals were occasionally incongruent, which we predicted would produce the McGurk illusion, resulting in the perception of an audiovisual syllable (e.g. /ni/). In this way, we used the McGurk illusion to manipulate the underlying statistical structure of the speech streams, such that perception of these illusory syllables facilitated participants’ ability to segment the speech stream. Our results therefore demonstrate that participants can integrate audio and visual input to perceive the McGurk illusion during statistical learning. We interpret our findings as support for modality-interactive accounts of statistical learning. (shrink)

Ample research links mothers’ postpartum depression (PPD) to adverse interactions with their infants. However, most studies relied on general population samples, whereas a substantial number of women are at elevated depression risk. The purpose of this study was to describe mothers’ interactions with their 6- and 12-month-old infants among women at elevated risk, although with a range of symptom severity. We also identified higher-order factors that best characterized the interactions and tested longitudinal consistency of these factors from 6 to 12 (...) months of infant age. We leveraged data from eight projects across the United States (n = 647), using standardized depression measures and an adaptation of the NICHD Mother-Infant Interaction Scales. Overall, these depression-vulnerable mothers showed high levels of sensitivity and positive regard and low levels of intrusiveness, detachment, and negative regard with their infants. Factor analyses of maternal behaviors identified two overarching factors—“positive engagement” and “negative intrusiveness” that were comparable at 6 and 12 months of infant age. Mothers’ ability to regulate depressed mood was a key behavior that defined “positive engagement” in factor loadings. An exceptionally strong loading of intrusiveness on the second factor suggested its central importance for women at elevated depression risk. Mothers with severe depressive symptoms had significantly more “negative intrusiveness” and less “positive engagement” with their 6-month-old infants than women with moderate or fewer depressive symptoms, suggesting a potential tipping point at which symptoms may interfere with the quality of care. Results provide the foundation for further research into predictors and moderators of women’s interactions with their infant among women at elevated risk for PPD. They also indicate a need for evidence-based interventions that can support more severely depressed women in providing optimal care. (shrink)

Selection on grandparental investment is more complex than Coall & Hertwig (C&H) propose. Patterns of investment are subject to an intergenerational conflict over how resources should be distributed to maximize fitness. Grandparents may be selected to distribute resources unevenly, while their descendants will be selected to manipulate investment in their own favor. Here we outline the evolutionary basis of this conflict.

Celebrations of the second centenary of Hegel's birth have already begun, and more are planned. The Sixteenth Annual Wheaton College Philosophy Conference, "The Philosophy of Hegel on the 200th Anniversary of His Birth", was held November 6th and 7th at Wheaton, Illinois. Errol Harris of Northwestern delivered the Keynote lecture titled "The Importance of Hegel Today". Other papers read included "Hegel's Dialectic" by William Young of the University of Rhode Island; "Hegel and Contemporary Theology" by Merold Westphal of Yale; "Hegel (...) and the Existentialists on the Nature of the Self" by John C. Pageler of Wheaton College, and "Hegel, Marcuse, and the New Left" by Bernard Zylstra, Institute of Christian Studies, Toronto. * * * The Toronto Chapter of the Conference on Political Thought will sponsor a Symposium on "Hegel's Social and Political Thought" early next May. Interested persons are advised to contact Professor H.S. Harris, Department of Philosophy, Glendon College, York University, Toronto 12, Ontario, Canada. * * *Marquette University will conduct a major international symposium early in June, 1970, devoted to the intellectual legacy of Hegel. Preliminary plans call for a four day conference covering Hegel's influence in social and political philosophy and theory, his influence in philosophy of religion end theology, his influence in philosophy and theory of history, and current and projected efforts in editing and translating his writings. Principal participants include Shlomo Avineri of the Hebrew University, Jerusalem; Jean-Yves Calvez of L'Institut d'Etudes politiques de Paris; Emile Fackenheim of the University of Toronto; J.N. Findlay and Kenley Dove of Yale; Eric Well of L'Universite de Lille; Otto Pöggeler, Director of the Hegel-Archiv; James Doull of Dalhousie University ; Kenneth Schmitz of the Catholic University, and others. The unique format for the program is designed to permit maximum participation and discussion, and the Proceedings will be published. The Owl will give full details in the Winter or Spring issue. Interested persons should contact either Professor Joseph O'Malley or Professor Lee C. Rice, Co-Directors, Department of Philosophy. Marquette University, 62/north 13th Street, Milwaukee, Wisconsin 53233, * * * A World Hegel Congress is to be held in Berlin in August, 1970, under the auspices of the Internationale Hegel Gesellschaft. More on this will also be provided in forthcoming issues of The 0wl of Minerva. (shrink)

My object in this paper is to suggest a few reflections on some themes in Bentham's work which others as well as I have noted, without perhaps developing them as fully as might with advantage be done. There will be nothing like full development in the limited compass of what is said here, but what is said may at least indicate possible directions for further exploration. The greater part of the paper will be concerned with the notion of natural authority; (...) but I want to begin by taking a broader, though no doubt rather superficial, view of the role in Bentham's thinking of the concepts of ‘nature’ and ‘the natural’. (shrink)

The object of this article is to examine, with the work of Jeremy Bentham as the principal example, one strand in the complex pattern of European social theory during the second half of the eighteenth century. This was of course the period not only of the American and French revolutions, but of the culmination of the movements of thought constituting what we know as the Enlightenment. Like all great historical episodes, the Enlightenment was both the fulfilment of long-established processes and (...) the inauguration of new processes of which the fulfilment lay in the future. Thus the seminal ideas of seventeenth-century rationalism realized and perhaps exhausted their potentialities in the eighteenth-century Enlightenment. The ideas with which this article is concerned, however—conveniently grouped and labelled as the ideas of utilitarianism—only began to achieve systematic development in these later decades of the eighteenth century. Within that period—during the first half and more of Bentham's long life—attempts to apply those ideas to the solution of social problems met largely with failure and frustration. Yet unrealized potentialities remained, the realization of which was reserved for a time when the world of the philosophes no longer existed. The movements for social and political reform which have played so large a part in modern history since the French Revolution may be judged in widely differing ways; but whatever the verdict, these movements surely cannot be understood without due consideration of that part of their origins which lies in eighteenth-century utilitarianism. (shrink)

The author argues that there is a sharp contrast between Plato's earlier teleological explanation of nature and his later conception. In the Phaedo Anaxagoras' νοṽς as a teleological principle is rejected, the forms taking its place, in the Philebus the existence of a νοṽς explaining order and finality in nature, is strictly demonstrated. After that nature and consequences of this new doctrine are briefly discussed : the ineffable character of the transcendent cause of the world ; the reduction of the (...) number of the Forms to those of substances in nature ; the causality of νοṽς as an immanent and intermediate one ; the foundation of a mathematical science of nature. Thirdly the author makes an effort to reconstruct the philosophical grounds of this development, starting from the three theses, on which the argumentation of the Philebus is based. 1) νοṽς can only exist in a soul. It is argued that the dynamic conception of soul in the Phaedrus logically leads to the conclusion, that νοṽς also is movement . 2) To explain cosmic order and finality a νοṽς has to be accepted. This new idea occurs for the first time in the Sophistes and in the myth of the Politicus. 3) Cosmic order has a mathematical and astronomical character. This aspect is absent before the Philebus and seems to have been a consequence of Plato's discovery of the regularity in the planitary motions . Finally the author thinks he can indicate in the Sophistes the turning-point in the theory of Forms, as a result of the extension of the notion of being. (shrink)

A total of 944 expressed sequence tags generated 2212 EST loci mapped to homoeologous group 1 chromosomes in hexaploid wheat. EST deletion maps and the consensus map of group 1 chromosomes were constructed to show EST distribution. EST loci were unevenly distributed among chromosomes 1A, 1B, and ID with 660, 826, and 726, respectively. The number of EST loci was greater on the long arms than on the short arms for all three chromosomes. The distribution of ESTs along chromosome arms (...) was nonrandom with EST clusters occurring in the distal regions of short arms and middle regions of long arms. Duplications of group 1 ESTs in other homoeologous groups occurred at a rate of 35.5%. Seventy-five percent of wheat chromosome 1 ESTs had significant matches with rice sequences, where large regions of conservation occurred between wheat consensus chromosome 1 and rice chromosome 5 and between the proximal portion of the long arm of wheat consensus chromosome 1 and rice chromosome 10. Only 9.5% of group 1 ESTs showed significant matches to Arabidopsis genome sequences. The results presented are useful for gene mapping and evolutionary and comparative genomics of grasses. (shrink)

A naturalistic theory of intentionality is proposed that differs from previous evolutionary and tracking theories. Full-blown intentionality is constructed through a series of evolvable refinements. A first, minimal version of intentionality originates from a conjectured internal process that estimates an organism’s own fitness and that continually modifies the organism. This process produces the directedness of intentionality. The internal estimator can be parsed into intentional components that point to components of the process that produces fitness. It is argued that such intentional (...) components can point to mistaken or non-existing entities. Different Fregian senses of the same reference correspond to different components that have different roles in the estimator. Intentional components that point to intentional components in other organisms produce directedness towards semi-abstract entities. Finally, adding a general, population-wide means of communication enables intentional components that point to fully abstract entities. Intentionality thus naturalized has all of its expected properties: being directed; potentially making errors; possibly pointing to non-existent, abstract, or rigid entities; capable of pointing many-to-one and one-to-many; distinguishing sense and reference; having perspective and grain; and having determinate content. Several examples, such as ‘swampman’ and ‘brain-in-a-vat’, illustrate how the theory can be applied. (shrink)

The full range of Bentham's engagement with Blackstone's view of law is beyond the scope of a single article. Yet it is important to recognize at the outset, even in a more restricted enquiry into the matter, that the engagement, begun when Bentham, not quite sixteen years of age, started to attend Blackstone's Oxford lectures, was indeed a lifelong affair. Whatever Bentham had in mind when, at the age of eighty, in 1828, he began to write a work entitled ‘A (...) familar view of Blackstone: or say Blackstone familiarized’, the manuscripts at least suffice to prove that ‘Our Author’ was still in the forefront of his mind at that octogenarian but still indefatigably active stage of his career. Every aspect of Bentham's multifarious intellectual activity over the intervening decades had been touched in some measure by his response to Blackstone's ideas. It still seems true to say what was said a dozen years ago: It would be an exaggeration to say that Bentham elaborated his own conception of law by way of a constant and conscious dialectic with the views of Blackstone. But it would be an exaggeration for which the evidence would afford some excuse. (shrink)

A number of recent books and articles have defended the concept of de re modality. Although Slote makes some contributions toward its defense, he is mainly concerned with using de re modality to provide analyses of key concepts in metaphysics, including "process", "event", "change", "physical body", "self", "future", "past", "fact", and "state of affairs". Each concept is defined by essence and accident, that is, by specifying what is either accidental or essential to the entities covered by the concept. Such definitions (...) focus on the ontological relationships of exact similarity, necessary coexistence, and logical dependence. They provide the necessary existence conditions for processes, events, selves, etc. These existence conditions are a major concern in metaphysical questions about the relationship between psychic and physical existence, selves and their experiences, and things and their alterations. Thus Slote provides an important analytical procedure for this type of metaphysical problem. (shrink)