Xiao Xiao, Yang Wenjing, Jia Lei, Lei Ming, Chen Antao, Zhang Qinglin
School of Psychology, Ministry of Education, Southwest University, Beibei, Chongqing, People's Republic of China.
Neuroreport. 2011 Dec 21;22(18):979-83. doi: 10.1097/WNR.0b013e32834d8853.
The electrophysiological bases of conflict control in a number interference task was measured in 21 healthy study participants using event-related brain potentials (ERPs). In the number interference task, participants were instructed to ignore the number words meaning and to report the number of the number words. The number words were 'two', 'three', or 'four'. We focused on the differences between the incongruent condition (e.g. 'two' written four times) and the congruent condition (e.g. four written four times). Scalp ERP analysis revealed that the incongruent condition elicited a more negative ERP deflection (N350-470) than the congruent condition between 350 and 470 ms, and a more late positive deflection (LPC) than the congruent condition between 550 and 650 ms. N350-470 was a critical sign of conflict monitoring in the early phase, and LPC mirrored conflict resolution in the terminal stage. The results provided evidence for the dissociation between conflict monitoring and conflict resolution in the number interference task.
使用事件相关脑电位（ERP）对21名健康研究参与者在数字干扰任务中冲突控制的电生理基础进行了测量。在数字干扰任务中，参与者被要求忽略数字单词的含义并报告数字单词的数量。数字单词为“二”“三”或“四”。我们重点关注不一致条件（例如，“二”写了四次）和一致条件（例如，四写了四次）之间的差异。头皮ERP分析显示，在350至470毫秒之间，不一致条件比一致条件引发了更负的ERP偏转（N350 - 470），并且在550至650毫秒之间比一致条件引发了更晚的正偏转（LPC）。N350 - 470是早期冲突监测的关键标志，而LPC反映了末期冲突解决情况。结果为数字干扰任务中冲突监测与冲突解决的分离提供了证据。
