Top-down and bottom-up sequential modulations of congruency effects

Several studies have demonstrated reduced congruency effects after incongruent trials. The conflict monitoring hypothesis (Botvinick, Braver, Barch, Carter, and Cohen, 2001) assumes that this sequential modulation is based on top-down cognitive control and suggests that more control is engaged after...

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Bibliographic Details
Published in:Psychonomic bulletin & review 2006-02, Vol.13 (1), p.112-117
Main Authors: NOTEBAERT, Wim, GEVERS, Wim, VERBRUGGEN, Frederick, UEFOOGHE, Baptist
Format: Article
Language:English
Subjects:
Adolescent
Adult
Association Learning
Attention
Biological and medical sciences
Cognition. Intelligence
Color
Color Perception
Conflict (Psychology)
Discrimination Learning
Experimental psychology
Female
Fundamental and applied biological sciences. Psychology
Humans
Hypotheses
Male
Memory, Short-Term
Miscellaneous
Psychological aspects
Psychology. Psychoanalysis. Psychiatry
Psychology. Psychophysiology
Reaction Time
Semantics
Studies
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Summary:Several studies have demonstrated reduced congruency effects after incongruent trials. The conflict monitoring hypothesis (Botvinick, Braver, Barch, Carter, and Cohen, 2001) assumes that this sequential modulation is based on top-down cognitive control and suggests that more control is engaged after the detection of conflict. An alternative account is based on repetition effects of stimulus and response features and can be considered bottom up. This study investigates both modulatory sources. In a Stroop task with two response-stimulus intervals (RSIs), we demonstrate that top-down modulation does not occur with a very short RSI, suggesting that it takes some time before the system can be reconfigured. Bottom-up modulation is observed for both RSIs. This finding demonstrates that two different sources simultaneously reduce congruency effects after incongruent trials.
ISSN:1069-9384
1531-5320
DOI:10.3758/BF03193821