ERP correlates of the conflict level in the multi-response Stroop task
| Autor: | Michał Ociepka, Bartłomiej Kroczek, Magdalena Senderecka, Patrycja Kałamała, Adam Chuderski |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Adult
Male slow potential Electroencephalography 050105 experimental psychology Task (project management) Odds Conflict Psychological 03 medical and health sciences Multi response Cognition 0302 clinical medicine Stroop task Reaction Time medicine Humans 0501 psychology and cognitive sciences cognitive control Control (linguistics) Evoked Potentials Molecular Biology Slow potential Brain Mapping conflict monitoring medicine.diagnostic_test General Neuroscience 05 social sciences Brain Stroop Test Female Neurology (clinical) N450 Psychology Social psychology Photic Stimulation 030217 neurology & neurosurgery Developmental Biology Stroop effect |
| Zdroj: | Brain Research. 1650:93-102 |
| ISSN: | 0006-8993 |
| DOI: | 10.1016/j.brainres.2016.08.041 |
| Popis: | This EEG study (N=33) examined event-related potentials associated with conflict between activated responses in the Stroop task, in order to examine the conflict monitoring theory of cognitive control, which predicts the strength of exerted control to be proportional to the detected level of conflict. However, existing research manipulated the sole presence/absence of conflict, but not its exact level. Here, by using a modified color-word task that allowed multiple correct responses for target colors, as well as multiple incorrect responses for distractor words, we manipulated the level of conflict among activated responses (and not only its presence). We expected that a larger number of activated incorrect responses (i.e., a presumably higher conflict) would entail more pronounced conflict-related potentials. Indeed, two components of the N450 wave, parietal negativity and medial frontal negativity, were more negatively deflected when conflict was higher, than when it was lower, visibly responding to the level of conflict. Slow potential weakly responded to the sheer presence of conflict, but not to its level. These results can be plausibly explained by the conflict monitoring theory with a modified conflict evaluation formula, whereas they are at odds with several alternative theories of cognitive control. |
| Databáze: | OpenAIRE |
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