The proactive self-control of actions: Time-course of underlying brain activities
The proactive self-control of actions: Time-course of underlying brain activities
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DOI：
10.1016/j.neuroimage.2017.05.043
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发表时间：
2017-08-01
期刊：
影响因子：
5.7
通讯作者：
Di Russo, F.
中科院分区：
文献类型：
--
作者：
Bianco, V.;Berchicci, M.;Di Russo, F.
积极主动的大脑控制优化即将到来的行动，抑制不必要的反应。在目前的事件相关电位（ERP）研究中，参与者事先自由决定是否对即将到来的刺激做出反应，然后根据他们的决定准备或不采取行动;最后，刺激被传递，受试者必须做出反应（或不）。在决策阶段，在没有反应的情况下，双侧前额叶负性升高，反映了前摄抑制的第一个大脑信号。与此同时，运动前区皮层的缓慢活动独立于所做的决定，然后在准备阶段只在反应决定的情况下（作为一种加速器）。当决定不做出反应时，前额叶活动保持持续（作为一种制动），并在准备阶段显示出右侧分布。总的来说，我们描述了一个积极的加速制动系统调节自我控制的行动的时间过程。
Proactive brain control optimizes upcoming actions and inhibits unwanted responses. In the present event-related potential (ERP) study, participants freely decided in advance whether to respond or not to an upcoming stimulus, then prepared or not the action according to their decision; finally, a stimulus was delivered, and subjects had to respond (or not). During the decision-making stage, a prefrontal negativity raised bilaterally in case no-response was decided, reflecting the first brain signal of proactive inhibition. Simultaneously, slow activity raised over premotor cortices independently from the decision taken, and then raised during the preparation phase only in the case of response decision (as a sort of accelerator). When the decision was not to respond, the prefrontal activity remained sustained (as a sort of brake) and showed a right-lateralized distribution during the preparation phase. Overall, we described the time-course of a proactive accelerating-braking system regulating self-control of actions.