La mémoire à long terme des durées : fonctionnement et développement

Estimating the duration of an event often requires that we reference our own knowledge about the duration of similar events stored in long-term memory. The ability to preserve these durations in long-term memory therefore seems to serve an important function in time estimation. However, relatively few studies on this topic appear in the psychology literature. In the present article, we describe how time estimation models have treated long-term memory, and discuss relevant empirical data obtained from adults. Then, we present the results of recent experiments that examine 3- to 8-year-old children’s ability to maintain durations in memory, depending on the kind of previous experience the children have had with these durations.     

Temps et mémoire

Theoretical and empirical support about the relationship between working memory and timing is presented in this paper. Common observations and ideas in these two fields of research suggest a reciprocal influence such that memory would be involved in timing and temporal information could be used in memory processes. Empirical data supporting this relationship and theoretical models integrating timing and memory processes are discussed in the present paper.     

Motivation et métacognition : les buts de compétence prédisent les processus métacognitifs en résolution de problèmes mathématiques

This study analyzes the effects of achievement goals on the metacognitive processes as 200 students solve two mathematical problems differing in complexity. Results show that the diverse achievement goals have significant effects both on metacognitive experiences and on metacognitive strategies, coherently across the two problems. Mastery-approach goals predict the feeling of liking the task, mastery-avoidance goals have an effect on the use of metacognitive strategies, whereas neither performance-approach nor performance-avoidance goals are significantly related to metacognitive processes. The results offer a rich picture of the interactions between goals and metacognitive processes, revealing the major role of mastery-avoidance goals.     

L’influence médiatique sur les jugements judiciaires : rôle du style d’écriture dans la formation des jugements

This article has two main goals: first, to review past research concerning the influence of pretrial publicity on judiciary judgements, and second, to present new empirical data concerning the impact of writing style in the media influence phenomenon. The three studies presented in this article show: 1/ that the morphosyntactical style of press articles can be distinguished as a function of the domain to which they pertain (judiciary, economic, politics, sports), 2/ that readers can readily recognize and identify the judiciary morphosyntactical style, and 3/ that the conformity of an article vs. its non-conformity to the judiciary style has some independent effect on memory about the article's content and on the elaboration of judiciary judgements by readers.     

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.     

Le cycle journée/nuit : étude du développement des connaissances chez l’enfant français et comparaison de méthodes

The aim of this work is to study the knowledge development process about night and day cycle during ontogeny, by comparing two diverging theoretical and methodological approaches, on 178 elementary school children (6-7 years old, 8-9 years old and 10-11 years old). We hypothesis that the dimension (2D/3D) of the representation, the question type (open versus forced choice) and the age of the student have an effect on the amount of correct answers and on the coherence between the answers. The results show that the knowledge acquisition process regarding night and day cycle follows a gradual path during ontogeny and that the method used has a significant effect on the number of correct answers given by the children. Indeed, heliocentric model is given minority when children are asked with open questions (only 31% of the children). On the contrary 76% of them choose the heliocentric perspective when asked with forced-choice questions. The support's dimension (2D/3D) has no effect.     

Connaissance du nom et du son des lettres, habiletés métaphonémiques et capacités de décodage en grande section de maternelle

This study examined the specific implication of letter-name knowledge in reading acquisition on 5-year-old kindergarten children. Several studies underlined the importance of both phonological and orthographic skills (letters and grapho-phonological associations’ knowledge developed during reading acquisition). So, we focused on the link between those different early abilities and on their links with reading acquisition during school year. Thus, at the beginning and at the end of the year, we proposed to 40 children metaphonemic tasks (phoneme identification in initial and final position in the words), letter-sound and letter-name knowledge tasks (naming and identification) and a pseudo-words decoding task. In addition, to access letter-name knowledge, two types of measurements were proposed: an accuracy measure and a speed one. Mean number of correct responses and reaction times were collected by children and analysed too. Results show that letter-name knowledge could play a part in metaphonemic abilities development and in letter-sound associations’ discovery and acquisition, at the beginning of the year. Thanks to those skills improvement, letter-name knowledge could have an indirect impact on later children's decoding skills. Furthermore, the direct link, already observed at the beginning of the year, between letter-name knowledge and decoding skills still exists in April. At last, analyses on letter-name knowledge access time show that the more children name an important number of letters, the more they do it quickly. These results could mean that a certain level of letter-name knowledge have to be reach before children could use this knowledge automatically. All together, results confirm the importance of good letter-name knowledge in the first stages of reading acquisition. We also suggest taking into account some clues of letter-name knowledge's automatic use to better understand reading acquisition processes.     

L’imagerie bizarre et la mémoire

One experiment examined free recall memory performance for bizarre and common pictures. Bizarre pictures were designed either deleting some components (SB pictures) either adding some components (AB pictures). A classical bizarreness effect was only obtained for AB pictures. Indeed no facilitative effect of bizarreness was obtained when incomplete fragmented pictures were used. Results were discussed in light of theories interested by the explanation of the bizarreness effect in memory.     

La métamémoire : analyse de sa mesure par questionnaire. Étude exploratoire

This research aims at allowing an elaboration of a metamemory questionnaire. A study of metamemory and metacognition modelisations first allowed identifying four dimensions (the stereotypes about memory aging, the subject’s beliefs about one’s abilities, his knowledge about strategies and strategy use). A content analysis of available questionnaires evidenced an incomplete operationalisation of these dimensions, and allowed us to identify some modalities for each of them. In order to check that modalities are clearly defined, we proceeded to a comparison between different subjects with one of these questionnaires. The agreement rates are satisfying, except for two modalities, but the results constrain us to complete this study with a similar one using another questionnaire.     

Influence des caractéristiques affectives et sémantiques des exemplaires d’un IAT Jeunes-Vieux sur les mesures d’attitudes résultantes

The IAT is supposed to be a method of indirect measure of the associative strengths between two target concepts (e.g., Young people versus Old) and two attribute concepts (e.g., Good versus Bad). But the stimuli used to represent these concepts can have an influence on IAT effects. We systematically manipulated the affective and semantic features of the stimuli used in a Young-Old IAT. The appearance of target exemplars (photos) and attribute exemplars (words) were perfectly differentiated. Three hundred and twenty subjects participated in the experiment and the results show that IAT effects are both influenced by the stimuli used and by the associative strengths between concepts. Practical and theoretical implications are discussed.     

Défis et contraintes des recherches sur les familles recomposées : l'exemple de la relation belle-mère-belle-fille

Research accomplished in this field indicates clearly that of all the members of the stepfamily, it is the stepmother that encounters the most difficulties in adapting to the stepfamily situation. Furthermore, the same research also shows that the stepmother/stepdaughter relationship appears to be the most challenging of all dyads. This analysis also enables us to identify the results that appear most significant and to propose different hypotheses for future research.     

Modèles et méthodes d'étude de la production écrite

The purpose of the present introduction to this special issue is to provide readers with a general theoretical framework of the cognitive structures and processes involved in writing. The first part of this introduction browses the major lines of the evolution of the writing models, since the first cognitive architecture of the writing processes proposed by Hayes and Flower (1980). In parallel with advance in theoretical conceptions of writing, methods for studying writing also evolved. The second part briefly describes the methods that are most used in writing research. The final part of the introduction presents the different articles that compose this special issue.     

Capacité de mémoire de travail et traitement du pronom chez l’enfant

The aim of this study was to explore the relationship between working memory capacity (WMC) and reading comprehension in children by testing the processing of pronouns. Two groups of nine- to ten-year-old children classified as high span and low span were administered a pronoun processing task. In this task, the computation of the antecedent referent for pronouns was varied by manipulating the distance between the pronoun and its antecedent and the availability of a gender cue. The results showed that compared to high-span children, low-span children experienced more difficulties in computing a pronoun's referent. High-span children spent longer reading sentences containing anaphoric pronouns when pronouns could not be resolved on the basis of the gender alone, suggesting that the pronouns were resolved as they were read. Low-span children tended to delay resolution until it was required by the task. In the question-answering times, low-span children were more adversely affected by distance than high-span children. Altogether these findings support the view that working memory capacity constrains resolution of anaphoric pronouns in children.     

EMOVAL : évaluation automatique de la valence et de l’activation émotionnelles des textes à l’aide d’une méta-norme de 5656 mots-racines

EMOVAL: automatic evaluation the emotional valence and arousal of texts using a 5656 root-words metanorm. EMOVAL is an emotional valence and arousal analysis model of texts. EMOVAL draws from linguistic tradition the hypothesis that every word has a denotative aspect (“meaning”) and a connotative aspect (“affective halo”). It uses a meta-analysis of seven French norms and one English norm with the objective to characterize the emotional valence of texts, paragraphs, or sentences in a pleasant or unpleasant way. The meta-analysis indicates that the seven French norms data are highly correlated in between (0.82 to 0.99), and highly correlated with the Affectiv Norm for English Words (Bradley et Lang, 1999) (0.81 to 0.97). Arousal values taken from Affective Norm for English Words (ANEW) (Bradley et Lang, 1999) and the Leleu (1987) norm are significately correlated (0.55). The metanorm has 5656 words (nouns, verbs, adjectives, adverbs) characterized in valence (−1 to +1), and 3265 words characterized in arousal. These items are used by EMOVAL for valence judgments of texts. Two types of texts are proposed: the evaluation of the whole (702) or of extracts (110) of a corpus of sentences judged in a seven-point scale (−3 very unpleasant to +3 very pleasant) (Bestgen et al., 2004), and of 12 texts positively valenced (happiness and good surprise) and negatively valenced (fear, anger, disgust, sadness, and bad surprise). These two types of tests confirm the psychological pertinence of EMOVAL. Limits regarding the arousal dimension are discussed. The metanorm presented in this article can be obtained from the authors.     

Influence des médias,insatisfaction envers le poids et l’apparence et troubles alimentaires selon le genre

The aim of the study was to explore gender differences in weight dissatisfaction, body dissatisfaction, media influence, use of dieting and excessive exercise, and disordered eating among a sample of 405 adolescents and young adults (277 girls and 128 boys) aged between 15 and 26. Girls were more likely to want to lose weight, whereas boys were more likely to want to gain weight and use excessive exercise. Gender differences have been found in body dissatisfaction and media influence, and among participants with disordered eating too. The findings brought out the gender-specific patterns of media influence, body image disturbances and disordered eating.