Neuroticism and Executive Functioning Deficits: The Moderating Role of Negative Urgency

Neuroticism predicts behaviors symptomatic of behavior dysregulation. One idea is that Neuroticism encompasses deficits in executive functioning; despite this link being empirically substantiated, it remains poorly understood. If Neuroticism is associated with executive functioning deficits due to it activating impulsivity in response to negative emotion, and if Negative Urgency (NU) is the specific aspect of emotional impulsivity that amplifies impulsivity in response to negative emotion, then Neuroticism's link to executive functioning deficits should be enhanced in individuals higher in NU. A large representative sample of US adults (N = 446; Mage = 46.10; 51.1% female; 78.0% White) completed validated measures of Neuroticism, NU and Positive Urgency (PU), and executive functioning deficits. As predicted, we found that Neuroticism's link to executive functioning deficits was moderated by NU (after controlling for PU) but not PU (after controlling for NU); specifically, Neuroticism's relation to executive functioning deficits was over twice as large for people with elevated (+1 SD) versus de-elevated (-1 SD) levels of NU. Furthermore, NU moderated relations between each Neuroticism facet (e.g., Anxiety, Anger) and executive functioning deficits. The findings extend understanding of how Neuroticism relates to executive functioning, suggesting utility in distinguishing between PU and NU and potentially studying Neuroticism and NU as interacting.