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Brain Imaging Investigation of the Impairing Effect of Emotion on Cognition
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Dynamic Functional Connectivity of Emotion Processing in Beta Band with Naturalistic Emotion Stimuli.

Sudhakar Mishra1, Narayanan Srinivasan2, Uma Shanker Tiwary1

  • 1Indian Institute of Information Technology Allahabad, Prayagraj 211012, India.

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Summary

This study reveals how dynamic functional connectivity (DFC) in the brain changes with emotional experiences using naturalistic videos. Temporal variability in DFC predicts emotional arousal and dominance, offering insights into emotion processing.

Keywords:
arousaldominancedynamic functional connectivitynaturalistic studyphase-locking value

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Affective Science

Background:

  • Limited research exists on emotion processing using naturalistic stimuli like movies.
  • Understanding the temporal dynamics of emotion processing and its neural underpinnings is crucial.
  • Investigating functional brain connectivity during emotional experiences is needed.

Purpose of the Study:

  • To explore the temporal dynamics of emotion processing using naturalistic stimuli.
  • To examine the relationship between dynamic functional connectivity (DFC) and dimensions of emotional experience.
  • To identify brain network hubs involved in emotion processing.

Main Methods:

  • Recorded electroencephalography (EEG) from participants watching videos and self-reporting emotional experiences.
  • Calculated dynamic functional connectivity (DFC) patterns across all frequency bands.
  • Quantified temporal variability in DFC (tvDFC) and used regression analysis to predict emotional dimensions.

Main Results:

  • Connectivity patterns in the upper beta band differentiated emotion categories during emotional experiences.
  • Temporal variability in DFC was primarily associated with emotional arousal and dominance.
  • Hubs in functional networks were identified in the right frontal and bilateral parietal lobes.

Conclusions:

  • Dynamic functional connectivity changes can predict aspects of emotional experience.
  • Findings support constructivist theories of emotion.
  • The study advances understanding of emotion processing dynamics using ecologically valid stimuli.