CAJ | 학술논문

目的：探讨注意对冲突监测事件相关电位N270的影响。方法：30名健康志愿者分成两组，一组人判断连续呈现的一对数字的颜色是否相同，不考虑数值（注意颜色）；另一组人判断连续呈现的一对数字的数值是否相同，不考虑颜色（注意数值），在头皮同步记录事件相关电位。结果：颜色不同和/或数值不同的数字对均可在第二个数字呈现后引起事件相关电位N270, 颜色和数值完全相同的数字对则不引起该负波。与不被主动注意状态相比，刺激特征冲突被注意时引出的N270波幅更高，持续时间更长，起始潜伏期不变。结论：冲突监测系统的启动不受注意影响，而一旦启动后则受到注意系统的调节。
목적：탐토주의대충돌감측사건상관전위N270적영향。방법：30명건강지원자분성량조，일조인판단련속정현적일대수자적안색시부상동，불고필수치（주의안색）；령일조인판단련속정현적일대수자적수치시부상동，불고필안색（주의수치），재두피동보기록사건상관전위。결과：안색불동화/혹수치불동적수자대균가재제이개수자정현후인기사건상관전위N270, 안색화수치완전상동적수자대칙불인기해부파。여불피주동주의상태상비，자격특정충돌피주의시인출적N270파폭경고，지속시간경장，기시잠복기불변。결론：충돌감측계통적계동불수주의영향，이일단계동후칙수도주의계통적조절。
Objective:To examine influences of attention on the conflict monitoring system. Methods:Thirty normal adults participated in the matching-to-sample task. They were divided into two subgroups. One subgroup was required to attend to the color while ignoring the value attribute of a number pair. The other subgroup was required to attend to the value while ignoring the color attribute of a number pair. Subjects were asked to press one of the two buttons according to whether the two digits were identical in the attended attribute and event-related potentials were recorded on their scalps. Results: A N270 component of event-related potential was recorded to the conflicting stimulus pairs but not to the matching pairs. The amplitude of N270 increased and its duration prolonged under attended condition. However, its onset latency showed no significant changes. Conclusion: The conflict monitoring process is automatically initiated and then regulated and enhanced by the attention control system.