The impact of emotion regulation on the relationship between momentary negative affect and end-of-day worry and rumination

Background: Negative self-referential processing (NSRP), including worry and rumination, is a hallmark feature of generalized anxiety disorder (GAD). Negative afect relates to NSRP, and emotion regulation skills (e.g., reappraisal and acceptance) may attenuate this relationship. This ecological momentary assessment study explored whether increased emotion regulation skills use would alter associations between daily fuctuations of negative afect and end-of-day NSRP.

Methods: Participants were 99 young adults (Mage=19.94; SD=1.81), diagnosed with GAD (n=48) and healthy controls (n=51). They provided twice daily ratings of negative afect, reappraisal, and acceptance over 14 days, and end-of-day ratings of NSRP. Mixed linear models adjusted for covariates, including state-level worry and rumination.

Results: Individuals with GAD reported higher levels of negative than controls, and high negative afect corresponded to greater end-of-day NSRP across all participants. Increased emotion regulation skills altered the relationship between increased negative afect and higher NSRP, though this did not difer by group. Acceptance and reappraisal diferentially afected associations between negative afect and NSRP.

Conclusions: Findings suggest that emotion regulation skills moderate the relationship between negative afect and end-of-day NSRP, highlighting the utility of using reappraisal and acceptance in daily life. This could eventually lead to improvements in treating GAD.