wandered minds with wandered brain networks.
Wandering Minds with Wandering Brain Networks.
机构信息
Sleep and NeuroImaging Center, Faculty of Psychology, Southwest University, Chongqing, 400715, China.
Key Laboratory of Cognition and Personality of Ministry of Education, Chongqing, 400715, China.
出版信息
Neurosci Bull. 2018 Dec;34(6):1017-1028. doi: 10.1007/s12264-018-0278-7. Epub 2018 Aug 22.
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.
默认模式网络（DMN）与思维漫游或与任务无关的思维的发生有关。相比之下，额顶网络（FPN）和视觉网络（VS）参与带有外部刺激的任务。然而，目前尚不清楚这些功能网络相互作用如何支持这两种不同的过程——思维漫游和任务相关——特别是在思维漫游体验的个体差异方面。在这项研究中，我们调查了 DMN、FPN 和 VS 之间的功能连接和模块结构。我们的结果表明，与任务相关时期相比，思维漫游与 DMN 活动增加和 DMN-VS 连接增加有关。此外，思维漫游伴随着大量的过渡节点，表达了大量的脑区多样性。有趣的是，FPN 和 VS 的功能连接与个体行为表现密切相关。我们的研究结果强调了思维漫游的个体差异，这意味着其他互补的大规模脑网络的重要性。
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