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Frontocingulate-parietal-limbic circuits associated with both ruminative brooding and self-regulatory processes.

Selena Singh1, Vibooshitha Thusyanthan1, Allison Mizzi1,2

  • 1Department of Psychology, Neuroscience and Behaviour, McMaster University, Hamilton, ON, Canada.

Frontiers in Human Neuroscience
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PubMed
Summary
This summary is machine-generated.

Ruminative brooding is linked to emotional dysregulation and metacognitive beliefs, not mindfulness. Neural findings suggest prefrontal control over self-referential systems may underlie this symptom.

Keywords:
broodingcross-frequency couplingemotional regulationmetacognitionmindfulnessneural networkssymptom networks

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Area of Science:

  • Neuroscience
  • Psychiatry
  • Cognitive Science

Background:

  • Ruminative brooding involves repetitive dwelling on thoughts and emotions.
  • It is associated with emotion dysregulation, maladaptive metacognitive beliefs, and abnormal interoception.
  • The neural mechanisms underlying these associations are not fully understood.

Purpose of the Study:

  • To investigate the neural underpinnings of ruminative brooding.
  • To explore the relationship between brooding, emotion dysregulation, metacognitive beliefs, and interoception using cross-frequency coupling (CFC).

Main Methods:

  • Utilized resting-state electroencephalography (EEG) to analyze cross-frequency coupling (CFC).
  • Employed regularized symptom networks to identify relevant symptom clusters.
  • Used partial least squares correlation (PLS-C) to link symptom dimensions with phase-amplitude coupling (PAC) patterns.

Main Results:

  • Brooding and emotional dysregulation co-varied with delta-beta PAC, forming a 'brooding/dysregulation' neural signature.
  • Mindfulness symptoms co-varied with beta-gamma and theta-gamma PAC, indicating a 'mindfulness/interoception' signature.
  • The 'brooding/dysregulation' signature involved prefrontal and cingulate modulation of emotion regulation and interoception regions.

Conclusions:

  • Ruminative brooding is more strongly associated with maladaptive metacognitive beliefs and emotional dysregulation than mindfulness or interoception.
  • Neural evidence suggests compensatory top-down control from prefrontal and cingulate areas over affective and self-referential systems.
  • Therapies focusing on self-acceptance and modifying metacognitive beliefs may help reduce rumination.