Co-speech iconic gestures and visuo-spatial working memory

Three experiments tested the role of verbal versus visuo-spatial working memory in the comprehension of co-speech iconic gestures. In Experiment 1, participants viewed congruent discourse primes in which the speaker's gestures matched the information conveyed by his speech, and incongruent ones in which the semantic content of the speaker's gestures diverged from that in his speech. Discourse primes were followed by picture probes that participants judged as being either related or unrelated to the preceding clip. Performance on this picture probe classification task was faster and more accurate after congruent than incongruent discourse primes. The effect of discourse congruency on response times was linearly related to measures of visuo-spatial, but not verbal, working memory capacity, as participants with greater visuo-spatial WM capacity benefited more from congruent gestures. In Experiments 2 and 3, participants performed the same picture probe classification task under conditions of high and low loads on concurrent visuo-spatial (Experiment 2) and verbal (Experiment 3) memory tasks. Effects of discourse congruency and verbal WM load were additive, while effects of discourse congruency and visuo-spatial WM load were interactive. Results suggest that congruent co-speech gestures facilitate multi-modal language comprehension, and indicate an important role for visuo-spatial WM in these speech–gesture integration processes.     

Sensitive performance-based assessment of everyday action in older and younger adults

Everyday function is compromised by mild cognitive changes in aging. These changes predict risk for future decline and dementia but remain poorly characterized, largely due to a scarcity of sensitive, objective measures.Twenty-seven younger adults and 25 non-demented older adults completed the Naturalistic Action Test (NAT), a performance-based measure of everyday action involving simple and complex tasks. Performance was coded for overt errors and subtle inefficiencies. Participants also completed self-report functional measures and cognitive tests. Mixed ANOVAs revealed that older adults made more subtle NAT errors with high task demands; groups did not differ in overt errors. Correlations did not reveal significant relations between self-report and NAT errors, but NAT performance was correlated with learning and recall.The NAT provides a promising tool for detecting subtle age-related changes and examining decline across levels of impairment. Self-report may lack sensitivity to subtle changes, and episodic memory changes underlie early functional disruption.     

Entraînement au monitoring métacognitif et performances à l’université

In French universities, only one out of two students is successful in his/her first year. The change of the working rhythm and the importance of self-regulated learning (relying on metacognition) can to a large extent explain these dramatic rates. Techniques have been developed to help students improve monitoring their activities. In this study, we adapted a method tested in previous research, and noticed positive effects on students’ performance. This intervention would be easy to implement in university classes, and would benefit students even more if generalized and complemented by techniques focused on more global aspects of metacognition and self-regulated learning.     

The propagation of everyday prosociality in the workplace

Prosocial behaviors typically benefit those who perform them but can create mixed emotions in recipients. Yet, how does prosociality affect the well-being of those who merely observe it? The current study aimed to answer this question by experimentally prompting employees to perform prosocial acts at work (Givers), be the recipient of such acts (Receivers), or to do neither (Observers). Our focus was on everyday prosociality, which involves kind acts directed at those in one’s social circle, rather than at individuals in need. Social proximity to Givers, but not Receivers, positively predicted boosts in well-being. Indeed, social proximity to Receivers was associated with a nonsignificant trend toward decreased well-being. However, both social proximity to Givers and social proximity to Receivers predicted increases in prosocial behavior among Observers. These results suggest that prosocial behavior and its emotional benefits propagate through social networks, particularly for those in close social proximity to prosocial actors.     

Le traitement orthographique du mot écrit en arabe

In this literature review, we propose a synthesis of the main research carried out in the context of orthographic processing in Arabic (processing of individual letters at their correct positions during a visual fixation). In the light of the results from studies conducted in skilled and beginning readers, the synthesis provides an overview on the universal aspects of the cognitive mechanisms involved in reading, and on the specific aspects underlying the Arabic writing system. It allows to underline the linguistic and sociolinguistic constraints related to learning to read in Arabic.     

大学生自主学习量表的编制

在Zimmerman自主学习理论基础上,根据我国大学生学习的实际情况编制了大学生自主学习问卷,通过因素分析发现,其中学习动机分量表可以提取6个因子:学习自我效能感、内在目标、学习控制感、外在目标、学习意义感、学习焦虑,学习策略分量表可以提取6个因子:一般方法、学习求助、学习计划安排、学习总结、学习评价、学习管理。对问卷进行的信度、效度检验结果表明,该量表具有较好的信度、效度指标。     

Symbolically speaking: a connectionist model of sentence production

The ability to combine words into novel sentences has been used to argue that humans have symbolic language production abilities. Critiques of connectionist models of language often center on the inability of these models to generalize symbolically (Fodor & Pylyshyn, 1988; Marcus, 1998). To address these issues, a connectionist model of sentence production was developed. The model had variables (role‐concept bindings) that were inspired by spatial representations (Landau & Jackendoff, 1993). In order to take advantage of these variables, a novel dual‐pathway architecture with event semantics is proposed and shown to be better at symbolic generalization than several variants. This architecture has one pathway for mapping message content to words and a separate pathway that enforces sequencing constraints. Analysis of the model's hidden units demonstrated that the model learned different types of information in each pathway, and that the model's compositional behavior arose from the combination of these two pathways. The model's ability to balance symbolic and statistical behavior in syntax acquisition and to model aphasic double dissociations provided independent support for the dual‐pathway architecture.