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Effective connectivity during face-matching and its modulation by positive and negative valence. Parameters have been averaged with Bayesian model averaging, across all subjects and models of the winning model family. We found significant dampening of effective connectivity from the AMY to the MPFC during processing of positively valenced faces. Arrow thickness indicate effective connectivity values: thick > 0.15, medium > 0.10, thin > 0.05, dashed: not significant.
