Dissociated stimulus and response conflict effect in the Stroop task: Evidence from evoked brain potentials and brain oscillations

Jingting Zhao, Wei Kuang Liang, Chi Hung Juan, Lin Wang, Suiping Wang, Zude Zhu

研究成果: 雜誌貢獻期刊論文同行評審

23 引文 斯高帕斯(Scopus)

摘要

The Stroop task is a classic paradigm that can be used to examine cognitive control as it contains conditions with and without interference. Cumulative evidence suggests that both stimulus and response conflict contribute to the Stroop interference effect. However, it remains unclear whether there are dissociable event-related potential (ERP) or frequency band-specific electroencephalographic (EEG) power changes associated with stimulus conflict and response conflict. To investigate potential markers for each form of conflict, we applied a Stroop 2-1 mapping task in 20 healthy young adults. Results showed that a negative deflection in the 350-500. ms time window (N450) and a positive deflection in the 600-900. ms time window (late positive component, LPC) were associated with response conflict and stimulus conflict, respectively. Time-frequency analyses found that both stimulus and response conflict induced theta band power changes and that response conflict additionally induced a beta band power change. These results indicate that stimulus and response conflict in the Stroop task are associated with different ERP effects and brain oscillatory features.

原文???core.languages.en_GB???
頁(從 - 到)130-138
頁數9
期刊Biological Psychology
104
DOIs
出版狀態已出版 - 1 1月 2015

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