Origines et développement des théories d’horloge interne du temps psychologique

The article describes the origins and development of internal clock theory. The history is traced via body temperature studies in the 1920s and 1930s, with input from 19th. century and early 20th. century psychophysics, through to the model of Treisman (1963). This model derived timed behaviour from an interaction of internal clock, memory store, and comparison processes. A successor to Treisman's model was the scalar expectancy theory (SET) of Gibbon and colleagues (1984). The origins of SET in animal Psychology are described, as is its application to human timing (in the early 1990s), in particular recent work on the operation of the internal clock itself. Finally, a discussion of some recent developmental studies of timing illustrates both how internal clock models have been applied, and how modern research may require a reconceptualization of the operation of classical internal clock models.     

Implicatures et développement

We summarize our work on pragmatic inference-making in children, while generally focusing on scalar implicatures. Such inferences arise when a relatively weak term implies the rejection of a stronger one. For example, some is often understood to mean not all. While adults readily draw such implicatures, children tend to rely on the terms’ minimal, lexically encoded meanings (with which some is compatible with all). Given that children’s treatments coincide with logical ones, children end up appearing more logical than adults on standard reasoning tasks. We describe this effect in detail while showing that (a) even young children can be encouraged to carry out implicatures and, that; (b) evidence of non-pragmatic behavior is best explained as due to unavailable effort.     

À l’école et au supermarché : le développement des connaissances sur deux organisations sociales

The development of naive theories regarding social organizations has not received the same emphasis as other conceptual domains, such as naive biology and naive psychology. However, a number of studies have been devoted to the development of children's naive conceptions of politics, school, or economics, most of them with interviews. In the present study, we studied six-, 10-, 14-year-old children's conceptions regarding two familiar organizations, school and supermarket. Results show that, even young children have knowledge regarding these two institutions. However, even 10-year-old children might fail to integrate these institutions in more general organizational, institutional and social dimensions. In many cases, only children aged 14 consistently integrate these various dimensions.     

Haut potentiel intellectuel et développement social

The first part of this article presents a theoretical and empirical review on the issue of gifted children's social development. As a whole, data does not allow for straightforward conclusion as to whether gifted children may be socially at risk. Conflicting results may be due in part to heterogeneity across studies in sampling procedures and in assessing social adjustment. Next, we will examine how social skills development could be viewed as a potential domain for the expression of intellectual giftedness, in the light of theories that posit a multi-factorial view of intelligence or creativity. Accordingly, there may be a need to reconsider the notion of giftedness and thus take into account social giftedness, both for identification and education purposes.     

Psychologie sociale et perception du temps : l'estimation temporelle des stimuli sociaux et émotionnels

Two experiments using a temporal bisection task investigated the influence of the social meaning of stimuli on the estimation of their duration. The results showed that: a) the duration of faces expressing diverse emotional states was overestimated relative to the duration of neutral faces; b) the duration of faces representing elderly people was underestimated relative to the duration of faces representing young people. In both cases, this influence was found to appear at the earliest stage of the estimation process, modulating the rhythm of the estimator's internal clock. In the discussion, we suggest three different perspectives to account for the observed link between social and temporal perception.     

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.     

Le développement des capacités de jugement des durées chez l'enfant

For several decades, since the work of Piaget, it has been believed that correct judgements of durations require sophisticated reasoning abilities that emerge at about 8 years of age. However, some researchers have demonstrated accurate temporal knowledge in young children and have explained their poor judgements on classical piagetian tasks not by their inability to correctly judge time, but by age-related attentional difficulties. Recently, researchers have thus reassessed the temporal behaviour in children with the experimental paradigms used in animals and humans adults in the framework of the temporal information processing models that assume the existence of an internal clock. Findings suggest that this type of clock is functional at an early age. Other findings allow us to better understand the role of the development of attention, memory and metacognitive processes in the development of the abilities to judge time. The aim of this article is to synthesize these recent findings.     

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.     

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.     

La perspective future des personnes âgées en fonction de la perte d'autonomie et du type d'habitation

Cet article porte sur la perspective future (PF) et rapporte les résultats d'une enquête auprès de 351 personnes âgées en perte d'autonomie fonctionnelle vivant chez elles ou en résidence pour personnes âgées. Les aspirations, buts ou projets, éléments constitutifs de la PF, sont recueillis au moyen de la technique des phrases à compléter. Les réponses sont classées selon leur contenu et leur extension temporelle. L'exploration du contenu révèle que la santé constitue la préoccupation principale des personnes âgées et que les aspirations à l'actualisation de soi de même que les motivations à caractère altruiste diminuent avec la perte d'autonomie. L'extension de la PF n'est pas affectée par les deux types d'habitation considérés dans cette recherche, mais elle subit une réduction avec la baisse de l'autonomie fonctionnelle.     

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.