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ERP evidence for rapid within-trial adaptation of cognitive control during conflict resolution.
Cortex ( IF 3.6 ) Pub Date : 2020-08-11 , DOI: 10.1016/j.cortex.2020.07.012
Patrycja Kałamała 1 , Michał Ociepka 2 , Adam Chuderski 2
Affiliation  

People often have to resolve many conflicts at the same time in their everyday lives. So far, the mechanisms of conflict resolution when multiple conflicts co-occur are not clear. This study examined the neurocognitive mechanisms of cognitive-control adaptation when two sources of conflict co-occur. To this aim, we measured event-related potentials in a task combining the Stroop conflict (the meaning and the color of a word differ) and the word–word conflict (two different words are presented). The word–word conflict was expected to tap the same stage of stimuli processing (i.e., semantics) and to modulate the magnitude of the Stroop conflict. Behavioral data showed that the word–word conflict facilitated the resolution of the Stroop conflict, which indicates the within-trial adaptation of cognitive control. ERP data showed two additive effects (the Stroop conflict and the word–word conflict) in the N450 time window, which suggests that at the neural level these two conflicts were processed in parallel (simultaneously and independently of each other). The N450 finding demonstrates that the control system flexibly and rapidly adapts to different types of conflict by modulating information processing in ways that individually address each source of conflict. Crucially, processing the conflicts in parallel substantially improved the efficiency of the control system. Overall, the study shows that the cognitive-control system can act as a collection of parallel but independent mechanisms; it thereby advances our understanding of goal-directed behavior.



中文翻译:

在冲突解决期间,ERP证据可快速进行试验内认知控制的适应。

人们通常在日常生活中必须同时解决许多冲突。到目前为止,当多个冲突同时发生时,解决冲突的机制尚不清楚。本研究研究了两种冲突源同时发生时认知控制适应的神经认知机制。为此,我们在结合Stroop冲突(单词的含义和颜色不同)和单词-单词冲突(提出了两个不同的单词)的任务中测量了与事件相关的电位。预期词对词冲突会利用刺激处理(即语义)的同一阶段并调节Stroop冲突的强度。行为数据表明,单词-单词冲突促进了Stroop冲突的解决,这表明了认知控制在试验中的适应性。ERP数据在N450时间窗口中显示了两个累加效应(Stroop冲突和单词-单词冲突),这表明在神经层次上,这两个冲突是并行(同时且彼此独立)处理的。N450的发现表明,控制系统通过以分别解决每个冲突源的方式来调制信息处理,可以灵活,快速地适应不同类型的冲突。至关重要的是,并行处理冲突会大大提高控制系统的效率。总体而言,研究表明认知控制系统可以充当并行但独立的机制的集合。因此,它增进了我们对目标导向行为的理解。这表明在神经层次上,这两个冲突是并行处理的(同时且彼此独立)。N450的发现表明,控制系统通过以分别解决每个冲突源的方式来调制信息处理,可以灵活,快速地适应不同类型的冲突。至关重要的是,并行处理冲突会大大提高控制系统的效率。总体而言,研究表明认知控制系统可以充当并行但独立的机制的集合。因此,它增进了我们对目标导向行为的理解。这表明在神经层次上,这两个冲突是并行处理的(同时且彼此独立)。N450的发现表明,该控制系统通过以分别解决每个冲突源的方式调制信息处理,可以灵活,快速地适应不同类型的冲突。至关重要的是,并行处理冲突会大大提高控制系统的效率。总体而言,研究表明认知控制系统可以充当并行但独立的机制的集合。因此,它增进了我们对目标导向行为的理解。N450的发现表明,控制系统通过以分别解决每个冲突源的方式来调制信息处理,可以灵活,快速地适应不同类型的冲突。至关重要的是,并行处理冲突会大大提高控制系统的效率。总体而言,研究表明认知控制系统可以充当并行但独立的机制的集合。因此,它增进了我们对目标导向行为的理解。N450的发现表明,控制系统通过以分别解决每个冲突源的方式来调制信息处理,可以灵活,快速地适应不同类型的冲突。至关重要的是,并行处理冲突会大大提高控制系统的效率。总体而言,研究表明认知控制系统可以充当并行但独立的机制的集合。因此,它增进了我们对目标导向行为的理解。

更新日期:2020-08-28
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