The causal interaction within attention networks and emotion network: a fMRI study

Area of Science:

• Neuroscience
• Cognitive Psychology

Background:

• fMRI studies identify distinct dorsal attention network (DAN) and ventral attention network (VAN).
• A separate emotion network has also been proposed, processing environmental stimuli, especially fearful expressions.

Purpose of the Study:

• To investigate the interactions among the DAN, VAN, and emotion network.
• To elucidate the causal relationships between these neural networks.

Main Methods:

• Regions of interest (ROIs) were identified using General Linear Model (GLM) analysis.
• Granger causality analysis was performed among the identified ROIs to assess directional influence.
• Causal connections were established based on Granger causality values exceeding the mean.

Main Results:

• Significant interactions were found among the three networks.
• Evidence suggests the ventral attention network (VAN) may interfere with the dorsal attention network (DAN).
• The emotion network appears to modulate activity in both attention networks.

Conclusions:

• The findings support the hypothesis of interconnectedness between attention and emotion processing.
• This research provides novel insights into the dynamic interplay of neural networks underlying attention and emotional responses.