Functional Neuroimaging Laboratory, School of Psychology, University of Newcastle, Australia; Priority Research Centre for Translational Neuroscience and Mental Health, University of Newcastle, Australia; Hunter Medical Research Institute, University of Newcastle, Australia.
Functional Neuroimaging Laboratory, School of Psychology, University of Newcastle, Australia; Priority Research Centre for Translational Neuroscience and Mental Health, University of Newcastle, Australia; School of Electrical Engineering and Computer Science, University of Newcastle, Australia.
Neuroimage. 2015 Mar;108:354-63. doi: 10.1016/j.neuroimage.2014.12.028. Epub 2014 Dec 18.
Cognitive control involves both proactive and reactive processes. Paradigms that rely on reactive control have shown that frontoparietal oscillatory synchronization in the theta frequency band is associated with interference control. This study examines whether proactive control is also associated with connectivity in the same frontoparietal theta network or involves a distinct neural signature. A task-switching paradigm was used to differentiate between proactive and reactive control processes, involved in preparing to switch or repeat a task and resolving post-target interference, respectively. We confirm that reactive control is associated with frontoparietal theta connectivity. Importantly, we show that proactive control is also associated with theta band oscillatory synchronization but in a different frontoparietal network. These findings support the existence of distinct proactive and reactive cognitive control processes that activate different theta frontoparietal oscillatory networks.
认知控制涉及到前摄和反应两种过程。依赖于反应控制的范式表明，额顶叶θ频段的振荡同步与干扰控制有关。本研究旨在探究前摄控制是否也与相同的额顶叶θ网络的连通性有关，或者是否涉及到不同的神经特征。使用任务转换范式来区分前摄和反应控制过程，分别涉及准备转换或重复任务以及解决目标后干扰。我们确认反应控制与额顶叶θ连通性有关。重要的是，我们表明前摄控制也与θ频段的振荡同步有关，但涉及到不同的额顶叶网络。这些发现支持了存在不同的前摄和反应认知控制过程，它们激活了不同的额顶叶θ振荡网络。
