Task-switching costs, Stroop-costs, and executive control: a correlational study.
Three correlational studies investigated the relationship between the time costs associated with Stroop stimuli (Stroop-costs) with the time costs associated with task-switching (switch-costs) obtained from colour-word stimuli and digit stimuli. In all studies, large and significant positive correlations were found between different measures of switch-costs. However, only small (and sometimes non-significant) correlations were obtained between the different measures of Stroop-costs and between measures of Stroop-costs and measures of switch-costs. The results are taken as evidence for the existence of some common or shared specialized mechanisms involved in task-switching, which are different from those used to overcome Stroop interference.
Ward
G
G
Department of Psychology, University of Essex, Wivenhoe Park, Colchester, CO4 3SQ, UK. gdward@essex.ac.uk
Roberts
M J
MJ
Phillips
L H
LH
D000293:Adolescent; D000328:Adult; D001288:Attention; D003071:Cognition / Q000502:physiology*; D006801:Humans; D011930:Reaction Time