It has been shown that narcissistic grandiosity and psychotic-like experiences (PLEs) may share the common psychological mechanisms, including impairments of metacognition, social cognition, cognitive biases, emotion regulation through fantasizing and dissociation. However, it remains unknown as to whether these mechanisms are associated with the occurrence of PLEs in people with narcissistic grandiosity. Therefore, in the present study, we approached a network analysis in order to investigate pathways from narcissistic grandiosity to PLEs taking into consideration the mediating effect of common psychological mechanisms. The study was based on a non-clinical sample of 1647 individuals, aged 18-35 years. Data were collected through self-reports administered in the online survey. There were no direct connections between narcissistic grandiosity and PLEs. However, four pathways connecting narcissistic grandiosity and PLEs through the effect of one mediating psychological mechanism were identified. These mechanisms covered external attribution biases, the need to control thoughts, social cognition, and emotion regulation through fantasizing. Among them, the shortest pathway led through the effects of external attribution biases. Age, gender, education and lifetime history of psychiatric treatment were included as covariates in a network analysis. Findings from this study indicate that higher levels of external attributions, the need to control thoughts, impairments of social cognition, and emotion regulation strategies based on fantasizing might be associated with the development of PLEs in people showing narcissistic grandiosity. These observations indicate potential targets for therapeutic approaches that aim to reduce the risk of developing comorbid psychopathology in people with grandiose narcissism traits.
Keywords: Grandiosity; Information processing; Narcissism; Psychosis proneness.
Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.