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Wandering Minds with Wandering Brain Networks

Neuroscience Bulletin volume 34, pages 1017–1028 (2018)Cite this article

Abstract

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.

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Acknowledgements

This research was supported by grants from the National Natural Science Foundation of China (31571111), the Chongqing Research Program of Basic Research and Frontier Technology (cstc2017jcyjAX0110) and the Fundamental Research Funds for the Central Universities (SWU1609109).

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Authors and Affiliations

  1. Sleep and NeuroImaging Center, Faculty of Psychology, Southwest University, Chongqing, 400715, China

    Xinqi Zhou & Xu Lei

  2. Key Laboratory of Cognition and Personality of Ministry of Education, Chongqing, 400715, China

    Xinqi Zhou & Xu Lei

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  1. Xinqi Zhou
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  2. Xu Lei
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Correspondence to Xu Lei.

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Zhou, X., Lei, X. Wandering Minds with Wandering Brain Networks. Neurosci. Bull. 34, 1017–1028 (2018). https://doi.org/10.1007/s12264-018-0278-7

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  • DOI: https://doi.org/10.1007/s12264-018-0278-7

Keywords

  • Mind wandering
  • Default mode network
  • Modularity
  • Functional connectivity