A fine-grained time course investigation of brain dynamics during conflict monitoring

Details

Serval ID
serval:BIB_8D39CD4483F6
Type
Article: article from journal or magazin.
Collection
Publications
Title
A fine-grained time course investigation of brain dynamics during conflict monitoring
Journal
Scientific Reports
Author(s)
Ruggeri Paolo, Meziane Hadj Boumediene, Koenig Thomas, Brandner Catherine
ISSN
2045-2322
Publication state
Published
Issued date
12/2019
Volume
9
Number
1
Language
english
Abstract
The conflict monitoring model predicting higher anterior cingulate cortex (ACC) neuronal activity on incongruent trials has been recently challenged by a model predicting longer neuronal activity in incongruent trials characterized by longer RTs. To clarify this issue, brain dynamics were explored through event-related-potential (ERP) recordings during a Stroop task. We assessed differences between experimental conditions by combining complementary methods sensitive to the temporality of events including microstate, TANOVA and source localization analysis. The analysis demonstrated the same electrical dynamics only differed in duration towards the end of information processing in the incongruent condition. Specifically, the activation strength of the ACC region did not differ significantly between congruent and incongruent conditions but lasted longer in the incongruent condition. Taken together, our results support the model predicting longer neuronal activity in incongruent trials characterized by longer RTs. They highlight that brain dynamics can dramatically change through periods of interest and that caution is required when interpreting fMRI results. To conclude, these results indicate how time-sensitive measures can contribute to a better understanding of the mechanisms underlying information processing, and thus offer new venues to explore conflict monitoring
Keywords
Multidisciplinary
Pubmed
Open Access
Yes
Create date
15/03/2019 16:28
Last modification date
20/08/2019 14:51
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