预期的大脑活动使预测预期情况的发生成为可能。然而,交通事故等事件在统计上是不可预测的,可能会产生灾难性的后果。这项研究调查了与预测和处理这些意外情况相关的大脑活动和有效连接,不可避免的事故。我们要求161名参与者骑摩托车模拟器,同时记录他们的脑电图活动。其中,90名参与者在驾驶时经历了至少一次事故。我们进行了受试者内部和受试者之间的比较。在事故发生前期间,右下顶叶(IPL),左前扣带皮质(ACC),在事故情况下,右岛表现出更高的活性。在事故发生后,双侧眶额皮质,右IPL,双边ACC,在事故情况下,中额上回也显示出活动增加。在事故发生前,我们观察到边缘网络(LN)节点内以及注意网络节点之间的有效连通性更大。在事故发生后,我们还观察到网络之间更有效的连通性,从腹侧注意力网络(VAN)到躯体运动网络和视觉网络中的节点,货车,和默认模式网络到前端网络中的节点,LN,和注意力网络。这表明激活与显着性相关的过程和情绪处理可以预测事故。一旦发生事故,对新信息进行整合和评估,并启动控制过程以使行为适应环境的新需求。
Anticipatory brain activity makes it possible to predict the occurrence of expected situations. However, events such as traffic accidents are statistically unpredictable and can generate catastrophic consequences. This study investigates the brain activity and effective connectivity associated with anticipating and processing such unexpected, unavoidable accidents. We asked 161 participants to ride a motorcycle simulator while recording their electroencephalographic activity. Of these, 90 participants experienced at least one
accident while driving. We conducted both within-subjects and between-subjects comparisons. During the pre-
accident period, the right inferior parietal lobe (IPL), left anterior cingulate cortex (ACC), and right insula showed higher activity in the
accident condition. In the post-
accident period, the bilateral orbitofrontal cortex, right IPL, bilateral ACC, and middle and superior frontal gyrus also showed increased activity in the
accident condition. We observed greater effective connectivity within the nodes of the limbic network (LN) and between the nodes of the attentional networks in the pre-accident period. In the post-accident period, we also observed greater effective connectivity between networks, from the ventral attention network (VAN) to the somatomotor network and from nodes in the visual network, VAN, and default mode network to nodes in the frontoparietal network, LN, and attentional networks. This suggests that activating salience-related processes and emotional processing allows the anticipation of accidents. Once an accident has occurred, integration and valuation of the new information takes place, and control processes are initiated to adapt behavior to the new demands of the environment.