Peterson Bradley S, Kane Michael J, Alexander Gerianne M, Lacadie Cheryl, Skudlarski Pawel, Leung Hoi Chung, May James, Gore John C
The Division of Child and Adolescent Psychiatry, Department of Psychiatry, the New York State Psychiatric Institute and the College of Physicians and Surgeons, Columbia University, New York, NY 10032, USA.
Brain Res Cogn Brain Res. 2002 May;13(3):427-40. doi: 10.1016/s0926-6410(02)00054-x.
The Stroop and Simon tasks typify a class of interference effects in which the introduction of task-irrelevant stimulus characteristics robustly slows reaction times. Behavioral studies have not succeeded in determining whether the neural basis for the resolution of these interference effects during successful task performance is similar or different across tasks. Event-related functional magnetic resonance imaging (fMRI) studies were obtained in 10 healthy young adults during performance of the Stroop and Simon tasks. Activation during the Stroop task replicated findings from two earlier fMRI studies. These activations were remarkably similar to those observed during the Simon task, and included anterior cingulate, supplementary motor, visual association, inferior temporal, inferior parietal, inferior frontal, and dorsolateral prefrontal cortices, as well as the caudate nuclei. The time courses of activation were also similar across tasks. Resolution of interference effects in the Simon and Stroop tasks engage similar brain regions, and with a similar time course. Therefore, despite the widely differing stimulus characteristics employed by these tasks, the neural systems that subserve successful task performance are likely to be similar as well.
斯特鲁普任务和西蒙任务代表了一类干扰效应，即在任务中引入与任务无关的刺激特征会显著延长反应时间。行为学研究尚未成功确定在成功完成任务过程中解决这些干扰效应的神经基础在不同任务之间是相似还是不同。对10名健康的年轻成年人在执行斯特鲁普任务和西蒙任务时进行了事件相关功能磁共振成像（fMRI）研究。斯特鲁普任务期间的激活情况重复了两项早期fMRI研究的结果。这些激活与西蒙任务期间观察到的激活非常相似，包括前扣带回、辅助运动区、视觉联合区、颞下回、顶下小叶、额下回和背外侧前额叶皮质，以及尾状核。各任务的激活时间进程也相似。西蒙任务和斯特鲁普任务中干扰效应的解决涉及相似的脑区，且时间进程相似。因此，尽管这些任务采用的刺激特征差异很大，但有助于成功完成任务的神经系统可能也相似。
