Fonctions exécutives et théorie de l’esprit chez le jeune enfant : une relation réciproque ?

The aim of this study was to assess the specific relation between 18-month-olds’ performance on tasks measuring language skills, executive function (EF) and theory of mind (ToM). The ToM tasks included measures of intention and false-belief understanding whereas working memory and inhibitory control were assessed with three EF tasks. Expressive vocabulary was assessed with the MacArthur Communicative Development Inventory. The main findings showed that both aspects of ToM are strongly linked at this age to inhibitory control, but not to working memory abilities. Language skills were not associated with either ToM or EF abilities. With regard to inter-tasks coherence within EF and ToM, we replicated previous findings with no consistency across EF tasks but an association between false-belief and intention understanding. Overall, these findings provide evidence for a link between executive function and theory of mind at the youngest age ever tested. They also challenge the view that EF is not required to succeed on the false-belief task based on spontaneous responses.     

Relationship between field dependence-independence and the g factor: What can problem-solving strategies tell us?

IntroductionField dependence-independence (FDI) has been the focus of a great deal of research. However, it is generally studied in relation to either personality or the g factor, with far fewer studies of the interconnections between FDI, the g factor and problem-solving strategies.ObjectiveOur first aim was to study the relationship between FDI and the g factor. Our second was to explain this relationship by analysing problem-solving strategies.MethodOne hundred and seventy 14-year-old performed three tests: the GEFT, the D-70, and a second, prototype g-factor test that enabled us to identify which strategies they used.ResultsResults confirmed the classic link between FDI and the g factor, and attributed this link to greater use of the most efficient strategies.     

Appreciation of nature and appreciation of environmental protection: How stable are these attitudes and which comes first?

IntroductionAttitude toward nature and attitude toward environmental protection are two separate but correlated attitudes. Little is known about the two attitudes’ stability/volatility over time, despite the practical value of such knowledge.Objectives & methodUsing longitudinal survey data from 251 adults in a cross-lagged structural equation model, we assessed the degree of spontaneous (i.e., unprompted) change in the two attitudes. We also considered whether such change could provide evidence regarding causal direction; causation could go in either of two directions between the two attitudes, or it could even be bi-directional.ResultsWe corroborated the substantive connection between attitude toward nature and attitude toward environmental protection; however, the absence of change in the attitudes despite the passage of two years disallows reliable statements about causal direction.ConclusionIt is possible to protect the environment by encouraging appreciation of nature, but change in attitude toward nature and attitude toward environmental protection may be difficult to achieve with mature individuals.