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Wandering Minds with Wandering Brain Networks.

Xinqi Zhou1,2, Xu Lei3,4

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

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|August 24, 2018
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Summary
This summary is machine-generated.

Mind-wandering involves increased default mode network (DMN) activity and connectivity. Individual differences in on-task brain networks, like the frontal-parietal network (FPN), correlate with mind-wandering behavior.

Keywords:
Default mode networkFunctional connectivityMind wanderingModularity

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Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Brain Network Dynamics

Background:

  • The default mode network (DMN) is linked to mind-wandering (task-unrelated thought).
  • The frontal-parietal network (FPN) and visual network (VS) support externally focused tasks.
  • The interplay between these networks during mind-wandering and on-task states, particularly individual variations, remains unclear.

Purpose of the Study:

  • To investigate functional connectivity and modular structure among DMN, FPN, and VS.
  • To explore how these network interactions relate to mind-wandering and on-task states.
  • To understand individual differences in mind-wandering experiences.

Main Methods:

  • Analysis of functional connectivity and modular organization of large-scale brain networks.
  • Comparison of network dynamics during mind-wandering versus on-task periods.
  • Correlation of network functional connectivity with individual behavioral performance.

Main Results:

  • Mind-wandering showed increased DMN activity and DMN-VS connectivity compared to on-task states.
  • Mind-wandering was associated with numerous transitional brain regions.
  • FPN and VS functional connectivity significantly correlated with individual behavioral performance.

Conclusions:

  • Mind-wandering is characterized by distinct large-scale brain network interactions, notably involving the DMN.
  • Individual variations in mind-wandering are linked to the functional connectivity of task-related networks like the FPN and VS.
  • These findings underscore the importance of considering complementary brain networks in understanding individual differences in cognitive states.