"Temporal associations between sleep quality and paranoia across the paranoia continuum: An experience sampling study": Correction to Kasanova et al. (2020).

Abstract

Reports an error in "Temporal associations between sleep quality and paranoia across the paranoia continuum: An experience sampling study" by Zuzana Kasanova, Michal Hajdúk, Viviane Thewissen and Inez Myin-Germeys (Journal of Abnormal Psychology, 2020[Jan], Vol 129[1], 122-130). In the article, the affiliation for Inez Myin-Germeys should have included the School for Mental Health and Neuroscience, Maastricht University. In addition, the following acknowledgment of funding was missing from the author note: "This project received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement 777084." The online version of this article has been corrected. (The following abstract of the original article appeared in record 2019-42677-001.) Sleep disturbances are prevalent among individuals with a psychotic disorder and have been linked to symptoms of paranoia across the entire psychosis continuum. Emerging evidence suggests that rather than a secondary symptom, poor quality of sleep may contribute to elevated paranoid ideation. We investigated the temporal dynamics of sleep quality and paranoid ideation using the experience sampling method in 42 acutely paranoid individuals with a psychotic disorder, 32 nonparanoid individuals with psychotic disorder, and 41 individuals with high schizotypy traits. We applied time-lagged mixed multilevel modeling to tease apart the effect of poor sleep quality on morning paranoia and negative affect, and the impact of evening paranoid ideation and negative affect on subsequent sleep quality. In the whole sample, poor subjective sleep quality predicted elevated paranoia the following morning, a relationship that was fully mediated by morning negative affect. No significant association between evening paranoia and poor sleep the following night emerged. In the everyday lives of individuals on the paranoia continuum, low quality of sleep appears to drive paranoia through its impact on negative affect. These findings identify sleep quality as an important target of transdiagnostic interventions for psychotic and affective symptomatology. (PsycInfo Database Record (c) 2020 APA, all rights reserved).