This study examined the effect of an interference task on the consolidation of duration in long-term memory. In a temporal generalization task, the participants performed a learning phase with a reference duration that either was, or was not, followed 30 minutes later by a 15-min interference task. They were then given a memory test, 24h later. Using different participant groups, several reference durations were examined, from several hundred milliseconds (600ms) to several seconds (2.5, 4 and 8s). The results showed that (...) the scalar timing property (i.e. precision proportional to judged duration) was preserved despite the interference task given during the memory consolidation process. However, the interference task increased the variability of time judgment and tended to produce a lengthening effect in all reference duration conditions. The modeling of individual data with parameters derived from scalar expectancy theory suggests that disrupting the memory consolidation of learned reference durations introduces noise in their representation in memory, with time being specifically distorted towards a lengthened duration. (shrink)

It is often assumed that most people want their life to be “meaningful”. But what exactly does this mean? Though numerous research have documented which factors lead people to experience their life as meaningful and people’s theories about the best ways to secure a meaningful life, investigations in people’s concept of meaningful life are scarce. In this paper, we investigate the folk concept of a meaningful life by studying people’s third-person attribution of meaningfulness. We draw on hypotheses from the philosophical (...) literature, and notably on the work of Susan Wolf (Study 1) and an objection Antti Kauppinen raised against it (Study 2). In Study 1, we find that individuals who are successful, competent, and engaged in valuable and important goals are considered to have more meaningful lives. In Study 2, we find that the perceived meaningfulness of a life does not depend only on its components, but also on how its elements are ordered and how it forms a coherent whole (the “narrative shape” of this life). Additionally, our results stress the importance of morality in participants’ assessments of meaningfulness. Overall, our results highlight the fruitfulness of drawing on the philosophical literature to investigate the folk concept of meaningful life. (shrink)

Alternative theories to quantum mechanics motivate important fundamental tests of our understanding and descriptions of the smallest physical systems. Here, using spontaneous parametric downconversion as a heralded single-photon source, we place experimental limits on a class of alternative theories, consisting of classical field theories which result in power-dependent normalized correlation functions. In addition, we compare our results with standard quantum mechanical interpretations of our spontaneous parametric downconversion source over an order of magnitude in intensity. Our data match the quantum mechanical (...) expectations, and do not show a statistically significant dependence on power, limiting quantum mechanics alternatives which require power-dependent autocorrelation functions. (shrink)

Cet article présente plusieurs machines dont l’existence est intimement liée aux pratiques ludiques. Il montre que ces objets s’inscrivent aussi bien dans la recherche en robotique et en intelligence artificielle que dans les pratiques artistiques contemporaines. Il s’intéresse en particulier à l’espace de jeu ouvert par l’interaction avec les machines et propose de considérer cet espace comme le lieu privilégié d’une forme d’expérimentation anthropologique.

In France, some institutions seem to call for the engineer’s sense of social responsibility. However, this call is scarcely heard. Still, engineering students have been given the opportunity to gain a general education through courses in literature, law, economics, since the nineteenth century. But, such courses have long been offered only in the top ranked engineering schools. In this paper, we intend to show that the wish to increase engineering students’ social responsibility is an old concern. We also aim at (...) highlighting some macro social factors which shaped the answer to the call for social responsibility in the French engineering “Grandes Ecoles”. In the first part, we provide an overview of the scarce attention given to the engineering curriculum in the scholarly literature in France. In the second part, we analyse one century of discourses about the definition of the “complete engineer” and the consequent role of non technical education. In the third part, we focus on the characteristics of the corpus which has been institutionalized. Our main finding is that despite the many changes which occurred in engineering education during one century, the “other formation” remains grounded on a non academic “way of knowing”, and aims at increasing the reputation of the schools, more than enhancing engineering students’ social awareness. (shrink)