Trait self-control (TSC), defined as the capacity to alter predominant response to promote desirable long-term goals, has been found to facilitate emotional well-being (EWB). However, the neural correlates underlying this association remain unclear. The present study estimated resting-state brain activity and connectivity with amplitude of low-frequency fluctuations (ALFF) and functional connectivity (rsFC) among late adolescents. Whole-brain correlation analysis showed that higher TSC was associated with increased ALFF in regions within the executive control network (inferior frontal gyrus, IFG) and the salience network (anterior insula, AI) and decreased ALFF in regions (e.g., medial frontal gyrus, MFG; posterior cingulate, PC) within the default-mode network (DMN). TSC was also linked with the integration (e.g., increased IFG-PC connectivity) and segregation (e.g., decreased AI-MFG connectivity) among brain networks. Mediation analysis indicated that TSC totally mediated the links from the IFG and the precuneus, FC of the AI and regions of the DMN (e.g., bilateral PC, MFG), to EWB. Additionally, ALFF in the IFG and the MFG could predict negative affect in the pandemic through TSC. These findings suggest that TSC is involved in several regions and functional organizations within and between brain networks and mediated the association between neural correlates and emotional wellness in adolescence.

中文翻译：

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特质的自我控制介导了青春期末期的静息状态神经相关性与情绪幸福感之间的联系。

特质自我控制（TSC）被定义为改变主要反应能力以促进理想的长期目标的能力，可促进情绪健康（EWB）。然而，这种关联背后的神经相关性仍不清楚。本研究估计了青少年晚期的静息状态大脑活动和连通性以及低频波动幅度（ALFF）和功能连通性（rsFC）。全脑相关性分析显示，较高的TSC与执行控制网络（下额回，IFG）和显着网络（前岛回肠，AI）内区域的ALFF升高以及区域（例如，额额内侧，前额回， MFG；默认模式网络（DMN）中的后扣带回（PC）。TSC也与整合相关联（例如，大脑网络之间的IFG-PC连接性增加）和隔离（例如AI-MFG连接性降低）。调解分析表明，TSC完全调解了IFG和AI的足前，FC和DMN区域（例如，双边PC，MFG）与EWB之间的联系。此外，IFG和MFG中的ALFF可以通过TSC预测大流行中的负面影响。这些发现表明，TSC参与了大脑网络内部和之间的多个区域和功能组织，并介导了青春期神经相关性与情绪健康之间的关联。IFG和MFG中的ALFF可以通过TSC预测大流行中的负面影响。这些发现表明，TSC参与了大脑网络内部和之间的多个区域和功能组织，并介导了青春期神经相关性与情绪健康之间的关联。IFG和MFG中的ALFF可以通过TSC预测大流行中的负面影响。这些发现表明，TSC参与了大脑网络内部和之间的多个区域和功能组织，并介导了青春期神经相关性与情绪健康之间的关联。