Time and cognitive load in working memory.

Pierre Barrouillet (1) , Sophie Bernardin (2) , Sophie Portrat (3) , Evie Vergauwe (1) , Valérie Camos (2)

1 FPSE
2 LEAD - Laboratoire d'Etude de l'Apprentissage et du Développement [Dijon]
3 LPNC - Laboratoire de Psychologie et NeuroCognition

According to the time-based resource-sharing model (P. Barrouillet, S. Bernardin, & V. Camos, 2004), the cognitive load a given task involves is a function of the proportion of time during which it captures attention, thus impeding other attention-demanding processes. Accordingly, the present study demonstrates that the disruptive effect on concurrent maintenance of memory retrievals and response selections increases with their duration. Moreover, the effect on recall performance of concurrent activities does not go beyond their duration insofar as the processes are attention demanding. Finally, these effects are not modality specific, as spatial processing was found to disrupt verbal maintenance. These results suggest a sequential and time-based function of working memory in which processing and storage rely on a single and general purpose attentional resource needed to run executive processes devoted to constructing, maintaining, and modifying ephemeral representations.

Domaines: Psychologie

Pierre Barrouillet, Sophie Bernardin, Sophie Portrat, Evie Vergauwe, Valérie Camos. Time and cognitive load in working memory.. Journal of Experimental Psychology: Learning, Memory, and Cognition, 2007, 33 (3), pp.570-85. ⟨10.1037/0278-7393.33.3.570⟩. ⟨hal-00824088⟩