NDLI: Congruency sequence effects are driven by previous-trial congruency, not previous-trial response conflict.

Content Provider	Directory of Open Access Journals (DOAJ)
Author	Daniel eWeissman Joshua eCarp
Abstract	Congruency effects in distracter interference tasks are often smaller after incongruent trials than after congruent trials. However, the sources of such congruency sequence effects (CSEs) are controversial. The conflict monitoring model of cognitive control links CSEs to the detection and resolution of response conflict. In contrast, competing theories attribute CSEs to attentional or affective processes that vary with previous-trial congruency (incongruent vs. congruent). The present study sought to distinguish between conflict and non-conflict accounts of CSEs. To this end, we determined whether CSEs are driven by previous-trial reaction time (RT)--a putative measure of response conflict--or by previous-trial congruency. In two experiments using a face-word Stroop task (n=49), we found that current-trial congruency effects did not vary with previous-trial RT independent of previous-trial congruency. In contrast, current-trial congruency effects were influenced by previous-trial congruency independent of previous-trial RT. These findings appear more consistent with theories that attribute CSEs to non-conflict processes that vary with previous-trial congruency than with theories that link CSEs to previous-trial response conflict.
e-ISSN	16641078
DOI	10.3389/fpsyg.2013.00587
Journal	Frontiers in Psychology
Volume Number	4
Language	English
Publisher	Frontiers Media S.A.
Publisher Date	2013-09-01
Publisher Place	Switzerland
Access Restriction	Open
Subject Keyword	Psychology Reaction Time Conflict Monitoring Response Conflict Stroop Congruency Sequence Effects Sequential Modulations
Content Type	Text
Resource Type	Article

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