Wandering Minds with Wandering Brain Networks

• 来源期刊: 神经科学通报（英文版）
• 年，卷（期）: 2018,（6）
• 页码范围: 1017-1028
• 页数: 12页
• 语种: 英文

摘要

The default mode network (DMN) is associated with the occurrence of mind-wandering or task-unrelated thought.In contrast,the frontal-parietal network (FPN) and visual network (VS) are involved in tasks with external stimuli.However,it is not clear how these functional network interactions support these two different processes -mind-wandering and on-task-especially with regard to individual variation in the mind-wandering experience.In this study,we investigated the functional connectivity and modular structure among the DMN,FPN,and VS.Our results showed that,compared to the on-task period,mind-wandering was associated with increased DMN activity and increased DMN-VS connectivity.Moreover,mind-wandering was accompanied by a large number of transitional nodes,which expressed a diversity of brain regions.Intriguingly,the functional connectivity of the FPN and VS was strongly correlated with individual behavioral performance.Our findings highlight the individual variation of mind-wandering,which implies the importance of other complementary large-scale brain networks.