Fischer Rico, Dreisbach Gesine, Goschke Thomas
Department of Psychology, Technische Universität Dresden, Dresden, Germany.
J Exp Psychol Learn Mem Cogn. 2008 May;34(3):712-8. doi: 10.1037/0278-7393.34.3.712.
Dynamic adjustments of cognitive control in response to interference from irrelevant stimulus attributes have repeatedly been shown. The purpose of the current research was to investigate how these control adjustments are modulated by the processing demands of a primary task. To this end, the authors combined a primary task (a number comparison task: classifying digits as smaller or larger than 5) with a Simon task. Control adjustments were observed in the form of typical sequential modulations of the Simon effect. In addition, the authors found sequential modulations of the numerical distance effect and an interaction of both effects. Results suggest that not only response conflict due to interference from task-irrelevant features but also processing demands of task-relevant features determine the level of control adjustment in the subsequent trial.
认知控制针对无关刺激属性干扰的动态调整已被反复证明。当前研究的目的是探究这些控制调整如何受到主要任务加工需求的调节。为此，作者将一项主要任务（数字比较任务：将数字分类为大于或小于5）与一项西蒙任务相结合。控制调整以西蒙效应典型的序列调制形式被观察到。此外，作者还发现了数字距离效应的序列调制以及两种效应的相互作用。结果表明，不仅任务无关特征干扰导致的反应冲突，而且任务相关特征的加工需求，都决定了后续试验中的控制调整水平。
