Kun Deng, Weipeng Jin, Keying Jiang, Zixi Li, Hohjin Im, Shuning Chen, Hanxiao Du, Shunping Guan, Wei Ge, Chuqiao Wei, Bin Zhang, Pinchun Wang, Guang Zhao, Chunhui Chen, Liqing Liu, Qiang Wang
This study explored whether amygdala reactivity predicted the greed personality trait (GPT) using both task-based and resting-state functional connectivity analyses (ntotal = 452). In Cohort 1 (n = 83), task-based functional magnetic resonance imaging (t-fMRI) results from a region-of-interest (ROI) analysis revealed no direct correlation between amygdala reactivity to fearful and angry faces and GPT. Instead, whole-brain analyses revealed GPT to robustly negatively vary with activations in the right ventromedial prefrontal cortex (vmPFC), supramarginal gyrus, and angular gyrus in the contrast of fearful + angry faces > shapes...
December 1, 2023: Behavioral and Brain Functions: BBF