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Related Experiment Video

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Brain Imaging Investigation of the Neural Correlates of Emotion Regulation
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Modeling Emotional Arousal With Turbulence Measured by EEG.

Marc Vidal1,2,3,4, Nádia Moura5, Bavo Van Kerrebroeck1,6

  • 1IPEM, University of Ghent, Ghent, Belgium.

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|June 21, 2025
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Summary

Brain activity turbulence decreases with movement and emotionality, especially in alpha and gamma ranges. High gamma activity better indicates emotionality during motor tasks, distinguishing emotional motor control.

Keywords:
criticalityemotional motor controlfunctional dataimmersive VRmind–brain–bodymultisensory processingnaturalistic neuroscience

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Psychology

Background:

  • Turbulence-like brain dynamics are linked to criticality and emotional states.
  • Motor behavior associated with emotional expression may alter brain dynamics.

Purpose of the Study:

  • To investigate if motor behavior modulates brain activity turbulence.
  • To determine if emotional expression shifts brain dynamics towards streamlined patterns for emotional motor control.

Main Methods:

  • Assessed electroencephalography (EEG) turbulence in 30 participants during motor tasks.
  • Tasks varied in demand and emotionality (singing, swaying, virtual conductor, movement mirroring).

Main Results:

  • EEG turbulence intensity (alpha and high gamma ranges) inversely correlated with movement degree and perceived emotionality.
  • Alpha range turbulence's link to emotionality weakened when task demand was considered.
  • High gamma activity emerged as a more reliable indicator of emotionality in motor tasks.

Conclusions:

  • Physical arousal influences perceived emotional engagement.
  • High gamma activity is crucial for differentiating EEG signatures of emotional motor control.
  • Emotional motor control may operate partly autonomously from voluntary motor control.