Narcissism and Self-Differentiation

In three studies, two monadic (N₁=284, N₂=349) and one dyadic (N₃=203 couples), we investigated whether narcissism (vulnerable, rivalrous, and grandiose) is associated with self-differentiation, emotional and cognitive separation from others, especially close others, resulting in emotion dysregulation. Across studies, high vulnerable and rivalrous narcissists manifested low self-differentiation.