“Amygdala High Gamma Oscillations During Facial Mimicry Implicate Visual Feedback in Affective Processing”

https://pubmed.ncbi.nlm.nih.gov/38112625

This study found that during facial mimicry, the human amygdala responds to emotional expressions with increased high gamma neural oscillations, suggesting that visual information and feedback from facial movements are combined in the amygdala, potentially modulating affective processing.