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Updated: Oct 29, 2025

Exploring the Neural Correlates of Cognitive Reappraisal in Obsessive-Compulsive Disorder Using Task-based Functional Magnetic Resonance Imaging
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Processing of Affective Pictures: A Study Based on Functional Connectivity Network in the Cerebral Cortex.

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Positive and negative emotions activate prefrontal, temporal, and parietal lobes more than neutral emotions. Brain network connections, especially long-range ones, differ significantly across emotional states, offering insights into emotion processing.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Affective Science

Background:

  • Emotion significantly impacts human life, yet its neural underpinnings, particularly brain functional networks, remain incompletely understood.
  • Existing research lacks a unified conclusion on how brain networks function across different emotional states.

Purpose of the Study:

  • To investigate differences in brain function network connectivity under varying emotional states (positive, negative, neutral).
  • To identify specific brain regions and frequency bands involved in emotional processing using electroencephalography (EEG).

Main Methods:

  • Utilized the International Affective Picture System (IAPS) to induce emotions.
  • Employed stable state visual evoked potential (SSVEP) and source localization techniques on EEG signals.
  • Analyzed differences in SSVEP amplitudes and brain functional network connections in cortical space.

Main Results:

  • Positive and negative emotions showed greater activation in the prefrontal, temporal, and parietal lobes compared to neutral emotions.
  • Significant differences in network connections were observed in alpha and gamma bands between emotional states.
  • Key differences in network connections between positive and negative emotions were found in the right middle temporal gyrus and bilateral superior frontal gyrus.

Conclusions:

  • Emotional states distinctly modulate brain activation patterns and functional network connectivity.
  • Long-range neural connections, particularly involving the frontal, middle temporal, and middle occipital gyri, are crucial for emotional processing.
  • Findings provide a scientific basis for understanding the neural mechanisms of emotion and inform EEG-based emotion recognition strategies.