Individuals with higher trait self-esteem prefer to use reappraisal, but not suppression: evidence from functional connectivity analyses

Trait self-esteem (TSE) is an important personality resource for emotion regulation, yet the neural correlates of TSE and emotion regulation remain unclear. Therefore, we aimed to investigate the neural correlates of TSE with different emotion regulation strategies and identify different brain areas involved in the particular strategies. We accordingly adopted the resting-state functional connectivity (rsFC) analysis to uncover the neural pathways linking TSE and emotion regulation. 235 young adults (45.9% females, Mage = 21.58) were guided to undergo the MRI scans and then complete the Rosenberg Self-Esteem Scale and the Emotion Regulation Questionnaire formed by two dimensions: cognitive reappraisal and expressive suppression. The results showed that TSE was positively correlated with left superior frontal gyrus (lSFG)-right middle frontal gyrus (rMFG) rsFC. Further mediation analysis indicated a mediated role of lSFG-rMFG rsFC in the link between TSE and cognitive reappraisal. In contrast, TSE was negatively correlated with the right frontal pole (rFP)-right precentral gyrus (rPrcG) rsFC, which played a mediated role in the link between TSE and expressive suppression. Overall, our findings suggest the neurofunctional underpinnings behind the preference for cognitive reappraisal in individuals with higher TSE, while individuals with lower TSE exhibit a greater propensity towards employing expressive suppression.