Electrophysiological dynamics reveal distinct processing of stimulus-stimulus and stimulus-response conflicts. Academic Article

abstract

• The present study examined electroencephalogram profiles on a novel stimulus-response compatibility (SRC) task in order to elucidate the distinct brain mechanisms of stimulus-stimulus (S-S) and stimulus-response (S-R) conflict processing. The results showed that the SRC effects on reaction times (RTs) and N2 amplitudes were additive when both S-S and S-R conflicts existed. We also observed that, for both RTs and N2 amplitudes, the conflict adaptation effects-the reduced SRC effect following an incongruent trial versus a congruent trial-were present only when two consecutive trials involved the same type of conflict. Time-frequency analysis revealed that both S-S and S-R conflicts modulated power in the theta band, whereas S-S conflict additionally modulated power in the alpha and beta bands. In summary, our findings provide insight into the domain-specific conflict processing and the modular organization of cognitive control.

authors

• Wang, Hongbin

published proceedings

• Psychophysiology

author list (cited authors)

• Li, Q. i., Wang, K., Nan, W., Zheng, Y. a., Wu, H., Wang, H., & Liu, X.

citation count

• 17

complete list of authors

• Li, Qi||Wang, Kai||Nan, Weizhi||Zheng, Ya||Wu, Haiyan||Wang, Hongbin||Liu, Xun

publication date

• April 2015

publisher

• Wiley  Publisher

published in

• n0048-5772ISSN  Journal

keywords

• Attention
• Brain
• Cognition
• Conflict Adaptation
• Conflict, Psychological
• Electroencephalography
• Evoked Potentials
• Female
• Humans
• Male
• N2
• Neuropsychological Tests
• Reaction Time
• Stimulus-response Compatibility
• Theta Band
• Young Adult

PubMed Central ID

• 25395309

Digital Object Identifier (DOI)

• 10.1111/psyp.12382

start page

• 562

end page

• 571

volume

• 52

issue

• 4

URL

• http://dx.doi.org/10.1111/psyp.12382