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Related Experiment Video

Updated: May 7, 2026

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Self-processing and the default mode network: interactions with the mirror neuron system.

Istvan Molnar-Szakacs1, Lucina Q Uddin

  • 1Semel Institute for Neuroscience and Human Behavior, University of California , Los Angeles, CA , USA ; Tennenbaum Center for the Biology of Creativity, University of California , Los Angeles, CA , USA.

Frontiers in Human Neuroscience
|September 25, 2013
PubMed
Summary
This summary is machine-generated.

The default mode network (DMN) is fragmenting into distinct subdivisions, changing how we understand self-referential and social cognition. This network interacts with brain systems for embodied simulation and mentalizing to represent the self and others.

Keywords:
autobiographical memoryembodimentfunctional connectivitymedial prefrontal cortexmentalizingposterior cingulate cortex

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Area of Science:

  • Neuroscience
  • Cognitive Neuroscience
  • Social Neuroscience

Background:

  • Recent evidence suggests the default mode network (DMN) is fractionating into functionally distinct subdivisions.
  • This fractionation necessitates a re-evaluation of the DMN's role in self-referential processing.
  • Advances in resting-state functional connectivity reveal complex organization within DMN nodes and inter-network interactions.

Purpose of the Study:

  • To review the relationship between the DMN and self-referential/social-cognitive processing.
  • To integrate emerging evidence of DMN heterogeneity into existing frameworks.
  • To propose how embodied simulation and mentalizing contribute to self- and other-understanding.

Main Methods:

  • Review of recent social-cognitive neuroscience literature.
  • Analysis of resting-state functional connectivity data.
  • Examination of DMN interactions with embodiment and mentalizing systems.

Main Results:

  • The DMN exhibits heterogeneity, with distinct subdivisions showing unique connectivity patterns.
  • Embodied simulation and mentalizing are proposed mechanisms for self- and other-understanding.
  • DMN nodes selectively interact with brain systems supporting embodiment and mentalizing, including the mirror neuron system.

Conclusions:

  • The fractionation of the DMN supports a more nuanced view of self-referential and social cognition.
  • Embodied simulation and mentalizing, facilitated by DMN interactions, are crucial for representing self and others.
  • Understanding DMN subdivisions offers insights into social-cognitive functions and their neural underpinnings.