Le développement de la mémoire de travail : perspectives dans le cadre du modèle de partage temporel des ressources

Working memory has a central role in cognitive development and its capacity is among the best predictors of high-level cognition and school achievement. Within the Time-Based Resource Sharing (TBRS) model, three main factors account for the development of working memory capacity. In this paper, we will review the main empirical evidence sustaining the impact of two of these factors on cognitive development. First, the amount of attention available for cognitive functioning might increase during childhood. Thus, for the same activities, older children would be able to process information faster than younger children. Within working memory span tasks, because the level of activation of memory traces decreases during the processing steps, any reduction of the duration of these steps directly diminishes the time during which the traces decay, and consequently increases the time available for reactivation or refreshing before the next processing step. These two effects jointly induce a stronger activation of the memory traces and a better recall of the to-be-maintained items. Second, because the main hypothesis of the TBRS model is that attention switches to refresh memory traces from processing to maintenance during the processing episodes, the efficiency of the refreshing mechanism should have a direct and strong impact on working memory functioning. An increase in the efficiency of this refreshing during childhood means that older children should take a greater advantage from the short pauses left free between each processing step. The level of activation of the memory traces would be then higher for older than for younger children, resulting in the classically observed increase in span. As a consequence, age-related changes in the efficiency of the refreshing could play a central role in working memory development.     

Effets de la pression temporelle sur les estimations de durées

This study aims at examining the effects of time pressure on adults’ time estimation. Participants had to solve mazes under two conditions of time pressure (with/without). After each maze, they had to estimate the time elapsed since the beginning of maze solving. Results show that under time pressure, participants 1) overestimated the duration of maze solving and 2) were less variable in their time estimation, in comparison to the condition without time pressure. These results are discussed in the framework of temporal information processing model.     

Apprendre à résoudre des problèmes en favorisant la construction d’une représentation alternative chez des élèves scolarisés en éducation prioritaire

In arithmetic problems solving, the representation of the problem spontaneously induced by the content of the statement is not always compatible with the solving strategy. This study evaluates a learning approach designed to lead pupils to build an alternative representation to the one spontaneously induced. In this paper, we evaluate the efficiency of this learning approach with children with learning difficulties enrolled in a priority education network. This learning by semantic recoding is a process based on an analogy between the problems and a comparison of strategies. The results show that after learning, the pupils built alternative representations.     

Problematic,absent and stigmatizing diagnoses in current mental disorders classifications: Results from the WHO-WPA and WHO-IUPsyS Global Surveys

This study examined English- and Spanish-speaking psychologists’ and psychiatrists’ opinions regarding problematic, absent and stigmatizing diagnoses in current mental disorders classifications (ICD-10 and DSM-IV), and their perceived need for a national classification of mental disorders. Answers to open-ended questions included in WHO-WPA and WHO-IUPsyS surveys were examined using an inductive content-analysis method. A total of 3,222 participants from 35 countries were included. The most problematic diagnostic group was personality disorders, especially among psychiatrists, because of poor validity and lack of specificity. Complex posttraumatic stress disorder was the most frequent diagnosis suggested for inclusion, mainly by psychologists, to better account for the distinct processes and consequences of complex trauma. Schizophrenia was the diagnosis most frequently identified as stigmatizing, particularly by psychiatrists, due to lack of public understanding or knowledge about the diagnosis. Of the 14.4% of participants who perceived a need for a national classification system, two-thirds were from Africa or Latin America. The rationales provided were that mental disorders classifications should consider cultural and socio-historical diversity in the expression of psychopathology, differences in the perception of what is and is not pathological in different nations, and the existence of culture-bound syndromes. Implications for ICD-11 development and dissemination are discussed.     

The “impact factor style of thinking”: A new theoretical framework

Over the last few years, university policy in developed countries has placed too much emphasis on assessing publications on the basis of the impact factor. Any scientific material that has not been published in a journal indexed in the Journal Citation Reports is academically irrelevant. Hence, researchers strive hard to publish in such journals. Failure to achieve this means not having a successful career or receiving any academic recognition. A thorough analysis of the effects of this phenomenon on the researcher community leads to the conclusion that the overestimation of the impact factor is likely to cause disappointment among many researchers. Researchers only have two options: adopting a politically correct behavior, that is, following the “impact factor style of thinking”, or accepting the futility of their research regardless of its relevance. This is an example of the involvement of university policy habitus obsessed impact index. O policy impact index is accepted, or is doomed to academic ostracism, and exclusion from participation in all university policy.     

Travailler dans un réseau de santé : effets sur la santé psychique au travail

The new needs as regards care taking charge of patients have contributed to the creation of health networks. As they are growing fast, they are an integral part of the French sanitation system. The impact, on the health professionals, of networking is, today, the object of contrasted research and results, but has little been studied as far as Social Psychology, Work and Organizations are concerned. This article follows a research project which had the objective, on the one hand, to describe the effects of the participation to a health network mental health at work and, on the other hand, to examine the variables and process accounting for the variability of these effects. This research privileges an approach to the health network as a place of socialization and personalization (Malrieu, 1979). The research on the ground is carried out in collaboration with the health network town-hospital Prevention and Taking charge of Pediatric Obesity Network (RéPPOP) Midi-Pyrénées. We have carried out semi-guided interviews with 20 private professionals (8 doctors, 8 dieticians, 3 psychologists, 1 physiotherapist) members of the RePPOP Midi-Pyrénées network. The main results show that the perception of positive and/or negative effects of networking on mental health varies according to the age of membership of the network and the processes of transfer of experience (from professional practice within the network to professional practice off-network and vice versa). Proposals are deduced in terms of continuing education within the network.     

Is it better to be happy or to be proud at school before doing a text comprehension task? First evidence with 10-year-old children

Introduction and objective

An experiment was conducted in a school context to examine whether joy and pride, two positive emotions, can promote children's acquisition of knowledge in a reading comprehension situation.