Intrinsic brain dynamics may play an important role in explaining interindividual variability in executive functions. In the present electroencephalography (EEG) study, we focused on the brain lateralization patterns predicting performance on three different monitoring tasks of temporal, verbal, and spatial nature. These tasks were administered to healthy young participants after their EEG was recorded during a resting state session. Behavioral indices of monitoring efficiency were computed for each task and a source-based spectral analysis was performed on participants' resting-state EEG activity. A lateralization index was then computed for each of 75 homologous cortical regions as the right-left difference score for the log-transformed power ratio between beta and alpha frequencies. Finally, skipped Pearson correlations between the lateralization index in each cortical region and behavioral performance of the three monitoring tasks were computed. An intersection among the three tasks showed that right-lateralization in different prefrontal regions, including the middle frontal gyrus, was positively correlated with monitoring abilities across the three tasks. In conclusion, right-lateralized brain mechanisms set the stage for the ability to monitor for targets in the environment, independently of the specific task characteristics. These mechanisms are grounded in hemispheric asymmetry dynamics already observable at rest.

中文翻译：

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右偏的内在大脑动力学预测监测能力。

内在的大脑动力学可能在解释执行功能的个体差异方面起重要作用。在当前的脑电图（EEG）研究中，我们集中于预测大脑在时间，言语和空间性质三个不同监视任务上的表现的侧脑模式。这些健康健康的年轻参与者在休息状态期间记录了他们的脑电图后，便执行了这些任务。为每个任务计算监测效率的行为指标，并对参与者的静止状态脑电图活动进行基于源的频谱分析。然后针对75个同源皮质区域中的每个区域计算偏化指数，作为β和α频率之间经对数转换的功率比的左右差值。最后，计算了每个皮层区域的侧化指数与三个监测任务的行为表现之间的跳过的皮尔逊相关性。这三个任务之间的交叉表明，在包括前额中回在内的不同额叶前额区域，右偏化与这三个任务的监测能力呈正相关。总之，独立于特定任务特征的右偏脑机制为监测环境中目标的能力奠定了基础。这些机制基于静止时已经可以观察到的半球不对称动力学。包括中额回在内，与三项任务的监测能力呈正相关。总之，独立于特定任务特征的右偏脑机制为监测环境中目标的能力奠定了基础。这些机制基于静止时已经可以观察到的半球不对称动力学。包括中额回在内，与三项任务的监测能力呈正相关。总之，独立于特定任务特征的右偏脑机制为监测环境中目标的能力奠定了基础。这些机制基于静止时已经可以观察到的半球不对称动力学。