We study complex phenomena arising from a simple optimal choice consumer model, starting from the classical framework in Benhabib and Day :459–471, 1981). We introduce elements of increasing complexity and we investigate their effects on the resulting social behaviors. The dynamics introduce the dependence of current preferences on past consumers actions. A non-monotone updating preference function allows us to obtain a threshold effect, according to which the agents adopt a bandwagon/snob behavior if the preferences are below/above a certain saturation level. (...) We consider homogeneous and heterogeneous agents and we introduce local/global interaction when they are spatially distributed. We show through simulations several phenomena which are absent in the classical model and which reproduce significant social behaviors, such as path dependence, coexistence of different periodic and chaotic attractors, emergence of spatial patterns. (shrink)

The noisy computation hypothesis of developmental dyslexia (DD) is particularly appealing because it can explain deficits across a variety of domains, such as temporal, auditory, phonological, visual and attentional processes. A key prediction is that noisy computations lead to more variable and less stable word representations. A way to test this hypothesis is through repetition of words, that is, when there is noise in the system, the neural signature of repeated stimuli should be more variable. The hypothesis was tested in (...) an functional magnetic resonance imaging experiment with dyslexic and typical readers by repeating words twelve times. Variability measures were computed both at the behavioral and neural levels. At the behavioral level, we compared the standard deviation of reaction time distributions of repeated words. At the neural level, in addition to standard univariate analyses and measures of intra-item variability, we also used multivariate pattern analyses (representational similarity and classification) to find out whether there was evidence for noisier representations in dyslexic readers compared to typical readers. Results showed that there were no significant differences between the two groups in any of the analyses despite robust results within each group (i.e., high representational similarity between repeated words, good classification of words vs. non-words). In summary, there was no evidence in favor of the idea that dyslexic readers would have noisier neural representations than typical readers. (shrink)

Objective Routine prenatal screening for Down syndrome challenges professional non-directiveness and patient autonomy in daily clinical practices. This paper aims to describe how professionals negotiate their role when a pregnant woman asks them to become involved in the decision-making process implied by screening.Methods Forty-one semi-structured interviews were conducted with gynaecologists–obstetricians and midwives in a large Swiss city.Results Three professional profiles were constructed along a continuum that defines the relative distance or proximity towards patients’ demands for professional involvement in the decision-making (...) process. The first profile insists on enforcing patient responsibility, wherein the healthcare provider avoids any form of professional participation. A second profile defends the idea of a shared decision making between patients and professionals. The third highlights the intervening factors that justify professionals’ involvement in decisions.Conclusions These results illustrate various applications of the principle of autonomy and highlight the complexity of the doctor–patient relationship amidst medical decisions today. (shrink)

In many countries, life expectancy has increased considerably in past years, and the importance of finding ways to ensure good levels of wellbeing through aging has become more important than ever. Arts based interventions are promising in this respect, and the literature suggests that musical activities can reduce isolation and anxiety and foster feelings of achievement and self-confidence. The present study examined the effects of group music making programs on the health and wellbeing of nursing home residents in Southern Switzerland. (...) A team of professional and student musicians delivered 10 weekly music sessions in four nursing homes, focusing on singing, rhythm-based activities with percussion instruments, and listening to short, live performances. 22 participants were recruited to take part in the study and were interviewed after the last music session. The data were analyzed with thematic analysis to investigate how residents experienced group music making and its effects. The findings show that the music programs were beneficial for residents’ wellbeing. Music plays an important role in their lives, both in their pasts and presently, and being involved in musical activities offers engagement and novelty in daily life, providing learning opportunities and facilitating interpersonal relationships. Moreover, these results were due to interactions with the musicians involved. Residents particularly appreciated the opportunity to listen to live performances as part of the sessions. This study suggests that nursing home residents value music and that music based interventions play an important and direct role in enhancing their wellbeing. (shrink)

La Práctica Filosófica es un movimiento internacional constituido por filósofos que buscan que la filosofía rebase su actual circunscripción a los circuitos académicos y recupere su relevancia para la vida individual y social. Consideran que, mediante esta recuperación, la filosofía se aproxima, dentro de marcos contemporáneos, a su espíritu inicial, pues ésta no nació simplemente como especulación sobre las cuestiones de ultimidad, menos aún como mera reflexión sobre la historia del pensamiento, sino también como guía en el arte de vivir, (...) como una disciplina que incumbía indisociablemente a la comprensión profunda de la realidad y de nosotros mismos y a nuestra transformación interior, la ordenada al desarrollo de nuestras mejores posibilidades. Philosophical Practice Philosophical Practice is an international movement comprised by philosophers whose aim is for philosophy to outrun its present confinement to academic circles, so as to regain its relevance in individual and social life. They consider that by doing this philosophy will come closer, within a contemporary framework, to its initial spirit, for the former was not born simply as speculation on matters of ultimacy let alone as a mere reflection on the history of thought, but also as a guide on the art of living, as a discipline that inextricably had to do with the profound understanding of reality and ourselves, as well as with. (shrink)

La Práctica Filosófica es un movimiento internacional constituido por filósofos que buscan que la filosofía rebase su actual circunscripción a los circuitos académicos y recupere su relevancia para la vida individual y social. Consideran que, mediante esta recuperación, la filosofía se aproxima, dentro de marcos contemporáneos, a su espíritu inicial, pues ésta no nació simplemente como especulación sobre las cuestiones de ultimidad, menos aún como mera reflexión sobre la historia del pensamiento, sino también como guía en el arte de vivir, (...) como una disciplina que incumbía indisociablemente a la comprensión profunda de la realidad y de nosotros mismos y a nuestra transformación interior, la ordenada al desarrollo de nuestras mejores posibilidades. (shrink)

Developmental dyslexia is a specific learning condition characterized by severe and persistent difficulties in written word recognition, decoding and spelling that may impair both text reading fluency and text reading comprehension. Despite this, some adults with dyslexia successfully complete their university studies even though graduating from university involves intensive exposure to long and complex texts. This study examined the cognitive skills underlying both text reading comprehension and text reading fluency in a sample of 54 university students with dyslexia and 63 (...) university students without dyslexia, based on a set of tests adapted for an adult population, including listening comprehension, word reading, pseudoword reading, phonemic awareness, spelling, visual span, reading span, vocabulary, non-verbal reasoning, and general knowledge. The contribution of these skills to text reading fluency and text reading comprehension was examined using stepwise multiplicative linear regression analyses. As far as TRF is concerned, a regression model including word reading, pseudoword reading and spelling best fits the data, while a regression model including listening comprehension, general knowledge and vocabulary best fits the data obtained for text reading comprehension. Overall, these results are discussed in the light of the current literature on adults with dyslexia and both text reading fluency and text reading comprehension. (shrink)

Dans cet article, nous nous intéressons à la mémoire de l'histoire rapportée par des adultes appartenant à cinq groupes d'âge allant de 20-24 à 80-84 ans. En particulier, nous nous focalisons sur les événements et changements sociohistoriques, survenus au cours de leur vie, que ces personnes ont retenus comme particulièrement saillants. Sur la base de deux enquêtes menées à Genève en 2004 et 2009, nous avons procédé à une double comparaison : entre les groupes d'âge d'une part, entre les réponses (...) données à cinq ans d'intervalle d'autre part. Certains événements sont particulièrement rappelés par le groupe d'âge qui entre dans la vie adulte au moment de leur apparition. Ainsi, la perception d'un épisode historique varie selon l'âge des individus au moment de son déroulement et les changements qui se produisent entre dix et trente ans ont un grand impact sur la mémoire. Toutefois, ceci ne constitue pas un mécanisme universel, mais reste soumis à plusieurs conditions, notamment que l'histoire soit porteuse d'un ou de plusieurs changements à cette période. (shrink)

In the later Byzantine age, historical sources mention many examples of prophecies concerning Chremetismomancy, the divination by horses' neighs. As far as we know, however, we have no earlier documents about this practice from ancient or from medieval Greece. Under the Komnenoi and Palaiologoi, to the contrary, important prophetic neighs are quoted by Anna Komnene, by Niketas Choniates and Nikephoros Gregoras. Wonders which were worked by neighing horses are of very great political consequence, relating to crucial moments such as an (...) emperor's military victories, a prince's succession to the imperial throne or the deposition of a ruler. In Gregoras' Roman History, it is not a living animal responsable for the nocturnal neighs, but a painted one at a chapel in the palace. It is very interesting to examine these narrative plots and historical accounts, as they convey many informations about Byzantine society. In particular, the strong disposition for magic, even at top-level of the society, should be emphasized. The philomantic emperors par excellence are Manuel I Komnenos and Andronikos II Palaiologos, the author of a themation, an astrological interpretation of horses' neighs, together with his faithful Logo the tes Theodoros Metochites, an expert at astrology and hemerology. The advance of such divinatory practices in the late Byzantine centuries should be related to home instability and enemies' threats on the boundaries. Chremetismomantic omina clearly focus on this particular climate of terror and uncertainty which forms the ideal ground for any attempt to foretell the future. Therefore, these practices were no laughing matter for Byzantine writers and their readers: only Nicetas Choniates' shy irony may argue us out of believing this. (shrink)

The book presents the most relevant theories of truth (correspondence, semantic, deflational, pragmaticist, coherentist, constructivist, evidential), with the emphasis of analytical approaches. The author develops a version of the realist correspondence concept of truth while distinguishing various criteria of truth. He is skeptical in regard of any, complete or certain truth but he does not accept epistemic skepticism either, but argues for a moderate realism where objective orientation towards truth suffices as catching (ever) more truth than falsity.

Comment devient-on philosophe? Par quel sursaut un Aristoclès se fait-il Platon, jusqu'à s'imposer dans la liste des " auteurs philo " Il faut enquêter, non pas sur la vie privée, mais sur la vie intime : rumination intellectuelle, ton sur lequel on parle, motivations amoureuses... Ce qui fait un philosophe, c'est un immense travail sur soi, et la rencontre d'autres philosophes, vivants, de leurs problématiques. Mémoire sémantique + obsession métaphysique, voilà le code génétique du philosophe. Il débute par un attentat (...) religieux, puisqu'il commence sa carrière en niant tel ou tel sacré. Bien sûr, il vaut mieux être mâle, communiquer par les livres adopter la langue dominante, écrire quand on est célibataire. Comment gagner sa vie? Pas forcément en étant enseignant, comme c'est le cas aujourd'hui. Le profil du philosophe nous le révèle orphelin, vivant à l'étranger, souvent laid, jamais fou, et serial thinker, prêt à changer de philosophie pourvu qu'il reste, lui, à menacer le monde donnera ou donnera pas du sens à notre vie? Le philosophe est l'être inquiet qui pense inquiéter l'Être par deux trois mots bien aiguisés. (shrink)

Four theoretical monographs, written by biologists in the wake of the sociobiology debate, and which treat, or purport to treat, the topic of sociocultural evolution are examined in this paper. On the biosocial spectrum they range from Trivers' pure sociobiology, to Lumsden and Wilson's sociobiology "in drag," to Boyd and Richerson's genuinely dual approach, to Cavalli-Sforza and Feldman's purely cultural transmission and evolution. The latter is likely to prove of greatest interest to social scientists and represents a major advance (...) in theorizing mathematically about social change. While the most comprehensive, Boyd and Richerson's "dual inheritance" model ultimately places more emphasis on the biological evolution of the capacity for culture than on genuine gene/culture coevolution even though it is conceivable that cultural transmission and evolution could be providing the selective force responsible for some fundamental biological phenomena such as sexual reproduction in long-lived vertebrates for example. The relationship between contemporary evolutionary and non-evolutionary theories of social change is not dealt with here but the former are very relevant to the latter because evolutionists believe they have available sophisticated solutions to problems which continue to plague other theoretical traditions. (shrink)

While there are numerous doubts, controversies and lack of consensus on alternative definitions of human death, it is argued that it is more ethical to allow people to choose either cessation of cardio-respiratory function or loss of entire brain function as the definition of death based on their own views. This paper presents the law of organ transplantation in Japan, which allows people to decide whether brain death can be used to determine their death in agreement with their family. Arguably, (...) Japan could become a unique example of individual choice in the definition of death if the law is revised to allow individuals choose definition of death independently of their family. It suggests that such an approach is one of the reasonable policy options a country can adopt for legislation on issues related to the definition of death. (shrink)

Extraterrestrial Altruism examines a basic assumption of the Search for Extraterrestrial Intelligence (SETI): that extraterrestrials will be transmitting messages to us for our benefit. This question of whether extraterrestrials will be altruistic has become increasingly important in recent years as SETI scientists have begun contemplating transmissions from Earth to make contact. Technological civilizations that transmit signals for the benefit of others, but with no immediate gain for themselves, certainly seem to be altruistic. But does this make biological sense? Should we (...) expect altruism to evolve throughout the cosmos, or is this only wishful thinking? Is it dangerous to send messages to other worlds, as Stephen Hawking has suggested, or might humankind benefit from an exchange with intelligence elsewhere in the galaxy? Would extraterrestrial societies be based on different ethical principles, or would we see commonalities with Earthly notions of morality? Extraterrestrial Altruism explores these and related questions about the motivations of civilizations beyond Earth, providing new insights that are critical for SETI. Chapters are authored by leading scholars from diverse disciplines—anthropology, astronomy, biology, chemistry, computer science, cosmology, engineering, history of science, law, philosophy, psychology, public policy, and sociology. The book is carefully edited by Douglas Vakoch, Director of Interstellar Message Composition at the SETI Institute and professor of clinical psychology at the California Institute of Integral Studies. The Foreword is by Frank Drake. This interdisciplinary book will benefit everybody trying to understand whether evolution and ethics are unique to Earth, or whether they are built into the fabric of the universe. (shrink)

How (Not) to Be Secular is what Jamie Smith calls "your hitchhiker's guide to the present" -- it is both a reading guide to Charles Taylor's monumental work A Secular Age and philosophical guidance on how we might learn to live in our times. Taylor's landmark book A Secular Age (2007) provides a monumental, incisive analysis of what it means to live in the post-Christian present -- a pluralist world of competing beliefs and growing unbelief. Jamie Smith's book is a (...) compact field guide to Taylor's insightful study of the secular, making that very significant but daunting work accessible to a wide array of readers. Even more, though, Smith's How (Not) to Be Secular is a practical philosophical guidebook, a kind of how-to manual on how to live in our secular age. It ultimately offers us an adventure in self-understanding and maps out a way to get our bearings in today's secular culture, no matter who "we" are -- whether believers or skeptics, devout or doubting, self-assured or puzzled and confused. This is a book for any thinking person to chew on. (shrink)

Introduction: Conversion and the practice of transformation -- The philosophical structure of Jonathan Edwards's religious affections -- Habit, habit change, and conversion in C.S. Peirce -- Reconstructing faith : religious overcoming in Dewey's pragmatism -- Transforming obligation in William James -- Dwelling in absence: the reflective origin of conversion -- Creative transformation : the work of conversion -- The evasion of conversion in recent American philosophy.

Targeted transitions in chromatin states at thousands of genes are essential drivers of eukaryotic development. Therefore, understanding the in vivo dynamics of epigenetic regulators is crucial for deciphering the mechanisms underpinning cell fate decisions. This review illustrates how, in addition to its cell memory function, the Polycomb group of transcriptional regulators orchestrates temporal, cell and tissue‐specific expression of master genes during development. These highly sophisticated developmental transitions are dependent on the context‐ and tissue‐specific assembly of the different types of Polycomb (...) Group (PcG) complexes, which regulates their targeting and/or activities on chromatin. Here, an overview is provided of how PcG complexes function at multiple scales to regulate transcription, local chromatin environment, and higher order structures that support normal differentiation and are perturbed in tumorigenesis. (shrink)

Background: The magnitude of bullying and harassment among psychiatrists is reportedly high, yet no peer-review published studies addressing this issue could be found. Therefore, it was decided to conduct a pilot study to assess the degree of the problem, the types of bullying/harassment and to provide some insights into the situation.Methods and Principal Findings: Following multiple focus group meetings, a yes/no response type questionnaire was developed to assess the degree and type of bullying and harassment experienced by psychiatrists. Over a (...) 3-month period the questionnaire was administered to a random sample of 60 psychiatrists. 57 out of the 60 psychiatrists reported harassment and bullying. Frequencies of the following response variables are presented in descending order: rumours 40% ; defamation 20% ; passing remarks 20% ; false accusations 15% ; threats 13.3% ; verbal abuse 13.3% ; unjustified complaints 13.3% ; promotion blocked 13.3% ; humiliation 13% ; bad reference given 10% ; credentials questioned 8.3% ; physical attacks 5% ; termination 5% ; derogatory remarks 1.7% and 1.7% were subjected to personal work. As a result of being subjected to harassment, 66.7% of the psychiatrists did not take any action, whereas 33.3% confronted the person they believed responsible. Asked whether the bullying and harassment caused distress, 18.3% of the psychiatrists did not report any effect, 30% reported mild distress, 40% moderate distress and severe distress was reported by 11.7%.Conclusions: It was concluded that the magnitude of bullying and harassment among psychiatrists may be quite high, as evidenced by this pilot study. There is a need for extensive systematic studies on this subject and to establish strategies to prevent and address this issue at a national and regulatory level. (shrink)