Document Detail

Working Memory Capacity and Stroop Interference: Global Versus Local Indices of Executive Control.
MedLine Citation:
PMID:  22774858     Owner:  NLM     Status:  Publisher    
Two experiments examined the relations among working memory capacity (WMC), congruency-sequence effects, proportion-congruency effects, and the color-word Stroop effect to test whether congruency-sequence effects might inform theoretical claims regarding WMC's prediction of Stroop interference. In Experiment 1, subjects completed either a high-congruency or low-congruency Stroop task that restricted trial-to-trial repetitions of stimulus dimensions to examine WMC's relation to congruency-sequence effects while minimizing bottom-up, stimulus-driven contributions. Congruency-sequence effects and congruency-proportion effects were significant but did not interact. WMC predicted global Stroop interference under low-congruency conditions but neither local congruency-sequence effects nor global Stroop interference under high-congruency conditions, contrary to previous studies (e.g., Kane & Engle, 2003). A high-congruency Stroop task in Experiment 2 removed the Experiment 1 task constraints, and, here, we obtained the typical, global association between WMC and Stroop interference but still no relation between WMC and congruency-sequence effects. We thus examined the methodological differences between Experiments 1 and 2 to determine whether any of these were locally responsible for the global WMC-related differences. They were not, suggesting that the changes between Experiments 1 and 2 created a general task context that engaged (or disengaged) the executive processes associated with WMC. (PsycINFO Database Record (c) 2012 APA, all rights reserved).
Matt E Meier; Michael J Kane
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-9
Journal Detail:
Title:  Journal of experimental psychology. Learning, memory, and cognition     Volume:  -     ISSN:  1939-1285     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-10     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8207540     Medline TA:  J Exp Psychol Learn Mem Cogn     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
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