Increasing evidence suggests that working memory and perceptual processes are dynamically interrelated due to modulating activity in overlapping brain networks. However, the direct influence of working memory on the spatio-temporal brain dynamics of behaviorally relevant intervening information remains unclear. To investigate this issue, subjects performed a visual proximity grid perception tas...

The study of developmental disorders can provide a unique window into the role of domain-general cognitive abilities and neural systems in typical and atypical development. Mathematical disabilities (MD) are characterized by marked difficulty in mathematical cognition in the presence of preserved intelligence and verbal ability. Although studies of MD have most often focused on the role of core...

This paper presents the cognitive activity differences of six expert architects when they design in blindfolded (BF) and sketching (SK) conditions. It was observed that all participants’ overall cognitive activity and perceptual activity in the BF sessions dropped below their activity in the SK sessions, approximately after 20 minutes during the timeline of their design activity. This drop in p...

We report the case of B.A., an 11-year-old child with a nonverbal (visuospatial) learning disability (NLD). Detailed psychometric and neuropsychological assessment on visuospatial working memory (VSWM) revealed specific simultaneous-spatial working memory impairment. A treatment targeting simultaneous-spatial working memory was given to B.A. for seven sessions (over one month); this resulted in...

Development of visuo-spatial memory span 2 Abstract There is an important debate in the literature about the possible causes of developmental increases in working-memory span scores. In the present study, we tested the role of structure in relation to the age-related increases in visuo-spatial span performance. To that end, children and adults between nine and nineteen years old conducted struc...

BACKGROUND Recent studies have demonstrated that individuals with Down syndrome (DS) present both central and verbal working memory deficits compared with controls matched for mental age, whereas evidence on visuospatial working memory (VSWM) has remained ambiguous. The present paper uses a battery of VSWM tasks to test the hypothesis that individuals with DS can also encounter specific difficu...

Links have recently been established between measures of educational attainment and both verbal and visuo-spatial aspects of working memory. Relationships have also been identified between specific executive functions-shifting, updating, and inhibition-and scholastic achievement. In the present study, scholastic attainment, shifting, updating, inhibition, and verbal and visuo-spatial working me...

Visuo-spatial working memory (VSWM) performances undergo a decline throughout aging and are affected by the space in which task is performed (reaching or navigational). Cerebral oxygenation cognitive capabilities could explain this decline. We assessed effects of age on cerebral dorsolateral prefrontal cortex (dlPFC) VSWM tasks reaching navigational space. also correlates performance each Thirt...