Social significance of tasks,routines, and pragmatic schemas in distribution activities

Past research on social marking and pragmatic reasoning schemas suggests that cognitive processing modes are first elaborated by children when they are carrying out regulating social routines in the course of which they learn to produce the responses that satisfy the demand of their environment. The data of the two experimental studies reported here with 4–5 year old children, for object distribution tasks, show that the social routines evoked by the objects to be processed have a dual effect, influencing both the representation of the partition to be made, as well as the procedures used to make them. It can be hypothesised that the utilization of routine-evoking tasks, which children are capable at a very young age, of accomplishing by activating efficient social-goal oriented procedures, promote the attribution of an operative meaning to the linguistic expressions used to characterize the states to be attained, and the transformations to be applied in order to attain them.     

Choking under pressure and working memory capacity: When performance pressure reduces fluid intelligence

Recent findings (Beilock & Carr, 2005) have demonstrated that only individuals with a high working memory capacity (WMC) “choke under pressure” on math problems with high working memory demands. This suggests that performance pressure hinders those who are the most qualified to succeed, because it consumes the WMC they usually rely on to achieve superior performance. This puts into question the use of performance in high-pressure situations as a means of distinguishing individuals with lesser or greater WMC potentials. While addressing several limitations of past research, we offer evidence that such choking (1) occurs only in individuals with high WMC, because of their anxiety-ridden perceptions of high-stakes situations, and (2) is not confined to tasks involving acquired skills and knowledge, but encompasses fluid reasoning abilities or intelligence (Gf). These findings have strong implications for assessments of people’s intellectual capacities in academic, clinical, work, and research settings.     

Intentionality: A Fundamental Idea of Husserl's Phenomenology

Simone de Beauvoir has written of the sense of excitement that marked Jean-Paul Sartre's first encounter with the thought of Husserl and Heidegger. Perhaps no work of Sartre's communicates this excitement, and the reason for it, quite so transparently as his brief 1939 essay on Husserl's notion of intentionality. Husserl here appears as a revolutionary, almost as a saviour, who has provided the necessary key for putting philosophy back in touch with the ordinary experience which both French realism and French idealism had vainly sought to characterize. Realism and idealism alike had been guilty in effect of a reduplication of things in consciousness, dependence on an often unexpressed correspondence theory which made mental surrogates for the real the only reality available to man. But if the present essay testifies to Sartre's attempt to return French thought to immediate contact with things, it enters into a fascinating dialectical tension with another of Sartre's chief motives—to purify immediate experience of its deceptions through a highly reflective, analytic mediation. The essay first appeared in Nouvelle Revue Francaise, LII, January 1939. (Tr.)     

Les comportements d'évaluation dans les systèmes éducatifs: INFLUENCE D'UNE CATÉGORISATION ETHNIQUE SUR LA NOTATION DE PRODUCTIONS SCOLAIRES

Dans le cadre de l'étude expérimentale des comportements d'évaluation mis en ?uvre dans les systèmes éducatifs et à partir de concepts de la psychologie de la perception, les auteurs rapportent une expérience qui met en évidence l'influence d'une catégorisation ethnique des élèves sur l'évaluation de leurs productions scolaires. Un měme devoir est noté différemment selon que le nom patronymique de l'élève qui est censé l'avoir effectué a une ((consonance française)) ou au contraire une ((consonance étrangère)). Mais les effets enregistrés diffèrent selon les évaluateurs concernés, qui ont été distingués selon des dimensions similaires à celles différenciant les élèves dont ils devaient évaluer les productions.     

Facets of the linear ordering polytope: A unification for the fence family through weighted graphs

The binary choice polytope appeared in the investigation of the binary choice problem formulated by Guilbaud and Block and Marschak. It is nowadays known to be the same as the linear ordering polytope from operations research (as studied by Grötschel, Jünger and Reinelt).The central problem is to find facet-defining linear inequalities for the polytope. Fence inequalities constitute a prominent class of such inequalities (Cohen and Falmagne; Grötschel, Jünger and Reinelt). Two different generalizations exist for this class: the reinforced fence inequalities of Leung and Lee, and independently Suck, and the stability-critical fence inequalities of Koppen. Together with the fence inequalities, these inequalities form the fence family. Building on previous work on the biorder polytope by Christophe, Doignon and Fiorini, we provide a new class of inequalities which unifies all inequalities from the fence family. The proof is based on a projection of polytopes. The new class of facet-defining inequalities is related to a specific class of weighted graphs, whose definition relies on a curious extension of the stability number. We investigate this class of weighted graphs which generalize the stability-critical graphs.     

Mémoires exacte et inférentielle en arithmétique mentale

Dans cette recherche, nous cherchons à éprouver la pertinence de la distinction de deux mémoires qualifiées d'exacte et d'inférentielle. Dans les deux expériences, sur 140 élèves de Cours Moyen et 456 étudiants respectivement, les sujets prennent d'abord connaissance d'un matériel numérique: un problème arithmétique ou un calcul mental (e.g. 86 + 47 + 93 + 52). Ensuite, ils sont interrogés à la fois sur des données exactes contenues dans ce matériel et sur des données susceptibles d'en ětre inférées. La recherche ne confirme pas clairement une indépendance des deux types de mémoire. En revanche, elle apporte des évidences en faveur d'une moindre sensibilité à l'amorçage de la mémoire exacte. Elle suggère aussi que l'effet de distance peut, en calcul mental, ětre différencié suivant les opérations arithmétiques: les opérations additives y sont plus sensibles que les opérations multiplicatives.     

Suicide attempts and family history of suicide in three psychiatric populations

The influence of a family history of suicide on suicide attempt rate and characteristics in depression, schizophrenia, and opioid dependence was examined. One hundred sixty inpatients with unipolar depression, 160 inpatients with schizophrenia, and 160 opioid-dependent patients were interviewed. Overall, a family history of suicide was associated with a higher risk for suicide attempt, with high-lethality method, with repeated attempts, and with number of attempts, while the interaction between family history and diagnostic group was not significant. Thus, a positive family history of suicide was a risk factor for several suicide attempt characteristics independent of psychiatric diagnosis.