In list-method directed forgetting, reexposure to forgotten List 1 items has been shown to reduce directed forgetting. proposed that reexposure to a few List 1 items only during a direct test of memory reinstates the entire List 1 episode. In the present experiments, part-list reexposure in the context of indirect as well as direct memory tests reduced directed forgetting. Directed forgetting was reduced when 50% or more of the items were reexposed, and was intact when only 25% were reexposed. Furthermore, (...) part-list reexposure appeared to reinstate only reexposed items-not the entire List 1 episode. (shrink)

The first brief description is given of a project aimed at searching for the neural correlates of consciousness through computer simulation. The underlying model is based on the known circuitry of the mammalian nervous system, the neuronal groups of which are approximated as binary composite units. The simulated nervous system includes just two senses - hearing and touch - and it drives a set of muscles that serve vocalisation, feeding and bladder control. These functions were chosen because of their relevance (...) to the earliest stages of human life, and the simulation has been given the name CyberChild. The system's pain receptors respond to a sufficiently low milk level in the stomach, if there is simultaneously a low level of blood sugar, and also to a full bladder and an unchanged diaper. It is believed that it may be possible to infer the presence of consciousness in the simulation through observations of CyberChild's behaviour, and from the monitoring of its ability to ontogenetically acquire novel reflexes. The author has suggested that this ability is the crucial evolutionary advantage of possessing consciousness. The project is still in its very early stages, and although no suggestion of consciousness has yet emerged, there appears to be no fundamental reason why consciousness could not ultimately develop and be observed. (shrink)

Current bioethical debate is bizarre because it concentrates on exceptional cases while it does not pay attention to underlying value perspectives that determine the agenda of the debate.

Phillips & Silverstein emphasize the gain-control properties of NMDA synapses in cognitive coordination. We endorse their view and suggest that NMDA synapses play a crucial role in biased attentional competition and (visual) working memory. Our simulations show that NMDA synapses can control the storage rate of visual objects. We discuss specific predictions of our model about cognitive effects of NMDA-antagonists and schizophrenia.

This book critically analyses experiences with bioethics education in various countries across the world and identifies common challenges and interests. It presents ethics teaching experiences in nine different countries and the basic question of the goals of bioethics education. It addresses bioethics education in resource-poor countries, as the conditions and facilities are widely different, and set limits and provide challenges to bioethics educators. Further, the question of how bioethics education can be improved is explored by the contributors. Despite the volume (...) of journal publications agreement on bioethics education is rather limited. There are only few examples of core curricula, demonstrating consensus on the contents, goals, methods and assessment of teaching programs. We need ask: How can agreement on the best modalities of bioethics education be promoted? (shrink)

Publication de deux poèmes byzantins du 12ème s. attribués à Théodore Prodomos, qui fournissent un certain nombre de renseignements sur les tentes des camps d'hiver des Comnène, et en particulier sur celle de la maison d'Irène la Sevastokratorissa. Cette étude mène l'auteur à un commentaire historico-artistique des éléments décrits: il compare d'abord ceux-ci avec l'art des 11ème et et 12ème s., et particulièrement avec l'art profane, puis il s'interroge sur l'authenticité des descriptions par rapport aux figures de rhétorique employées dans (...) ces textes. (shrink)

In the recent past, several papers have pointed to the possibility that tumour removal generates a permissive environment in which tumour growth is potentiated. This phenomenon has been coined “perioperative tumour growth” and whilst it represents a departure in terms of our attitude to the surgical process, this concept was first hinted at by Paget1Sir James Paget (1814–1899) was a surgeon and physiologist who is widely held (along with Rudolph Virchow) to be the father of the science of pathology. Paget (...) described Paget's disease of the nipple as well as Paget's disease of bone. himself. Despite this, the time interval immediately before and after cancer surgery (i.e. the perioperative period) remains an underutilised interval during which chemotherapeutic regimens are rarely implemented. Herein, we present a summarised review of the literature that supports the concept that tumour removal may potentiate the growth of residual neoplastic disease. We also outline current knowledge regarding underlying mechanisms and in this manner highlight potential therapeutic entry points. Finally, we emphasise the urgent need for trials of agents that could protect patients against the harmful host–tumour interactions that may occur during the perioperative period. BioEssays 28: 433–437, 2006. © 2006 Wiley Periodicals, Inc. (shrink)

Individuals make decisions under uncertainty every day based on incomplete information concerning the potential outcome of the choice or chance levels. The choices individuals make often deviate from the rational or mathematically objective solution. Accordingly, the dynamics of human decision-making are difficult to capture using conventional, linear mathematical models. Here, we present data from a two-choice task with variable risk between sure loss and risky loss to illustrate how a simple nonlinear dynamical system can be employed to capture the dynamics (...) of human decision-making under uncertainty (i.e., multi-stability, bifurcations). We test the feasibility of this model quantitatively and demonstrate how the model can account for up to 86% of the observed choice behavior. The implications of using dynamical models for explaining the nonlinear complexities of human decision-making are discussed, as well as the degree to which nonlinear dynamical systems theory might offer an alternative framework for understanding human decision-making processes. (shrink)

Papers presented at the Conference of the Cardinal Newman Society, November, 2001, the Catholic University of America, Washington, D.C.

This book delivers much more than its title appears to promise; it is not merely a description of current methods for remotely monitoring brain activity. It primarily concentrates on just one such method: positron emission tomography, but it demonstrates beautifully how far that technique can now take us in the quest to discover the mechanisms underlying thought.

When people hear the name of Cardinal Newman, one of the first associations they make is to his Idea of a University. However, it is rarely known that his first love was Catholic education at the elementary and secondary levels, so that the Oratory School he founded has been described as the “apple of his eye.” Interestingly, Pope Francis is the first pontiff in modern history, at least, to have taught high school and who has reflected extensively on his own (...) personal experiences of being raised by the Salesian Fathers in Argentina. Both Newman and Francis would regard Catholic elementary and secondary schools as essential to producing what Newman repeatedly referred to as “an educated laity” – equally essential for what St. John Paul II dubbed “the new evangelization.”. (shrink)

The terms 'transcendence' and 'immanence' are often used casually and as self-evident. The spatial imagery contained in their meaning determines the way they are understood and used: as opposites, like 'there' and 'here'. As a consequence, the two concepts are seen as mutually exclusive when applied to God's being and to his activity and presence in our world and in our history. This view on the relationship between God and world is characteristic not only of deism and pantheism, but also (...) of theism. However, in the view of Thomas Aquinas, such an opposition cannot adequately capture the central tenets of the Christian faith. This book explores Aquinas' thought on transcendence and immanence in his discussions of creation, analogy, the Trinity, grace and Christ, and offers interpretations in which God's transcendence and his immanence do not exclude but imply one another. >br/>The papers contained in this volume were originally presented at the third international conference of the Thomas Instituut at Utrecht in 2005. (shrink)