Negative emotion differentiation in trauma-exposed community members: Associations with posttraumatic stress disorder symptoms in daily life.

The ability to make fine-grained distinctions between discrete negative emotions-termed negative emotion differentiation (NED)-is important for emotion regulation and psychological well-being. Posttraumatic stress disorder (PTSD) is associated with elevated trauma-related negative emotions (e.g., fear, anger, guilt, shame) and self-reported difficulty identifying feelings, suggesting that low NED may be a feature of PTSD. PTSD is also characterized by overreliance on avoidance as an emotion regulation strategy-a characteristic that could be influenced by low NED. Here, we examined whether NED is reduced in PTSD and the role NED plays in the association between trauma-related avoidance and other PTSD symptoms (traumatic reexperiencing, negative alterations in cognition and mood, alterations in arousal and reactivity). Hypotheses were tested using 3 days of ecological momentary assessment (up to 17 prompts per day) in 80 trauma-exposed participants (39 with PTSD, 41 without PTSD; total completed surveys = 2,158). NED was reduced and self-reported difficulty identifying feelings was elevated in those with PTSD, and both predicted PTSD severity (Clinician-Administered PTSD Scale-5 score) and momentary PTSD symptoms. Furthermore, low NED, but not difficulty identifying feelings, predicted a stronger association between momentary trauma-related avoidance and PTSD symptoms. Results suggest that NED is involved in the emotional processing of trauma by decreasing the negative impact of avoidance behavior on other PTSD symptoms. (PsycInfo Database Record (c) 2023 APA, all rights reserved).