Abstract

BackgroundSchizotypy is a multidimensional personality trait related to the heightened risk for the development of schizophrenia spectrum disorders. While it has been suggested that loneliness may be associated with schizotypy in general, whether it relates to the specific schizotypal traits differentially remains unknown. Besides, as loneliness often co-occurs with depression and anxiety, it is important to delineate its relationship with schizotypy in consideration of these co-occurring emotional disturbances. MethodsA demographically diverse sample of young people was obtained from multiple sources. The validated sample consisted of 2089 participants (68.4% female, age range: 18–30). The structural relationship between loneliness and schizotypy was modelled using a network analytic approach. The Gaussian graphical model with loneliness and nine schizotypal traits as nodes was first estimated without, and then with adjustment for the levels of depressive and anxiety symptoms. Edges were estimated as unique associations between nodes. Results‘Suspiciousness’, ‘odd beliefs or magical thinking’, ‘no close friends’, ‘constricted affect’ and ‘excessive social anxiety’ were linked to loneliness directly. Loneliness was found to be more strongly associated with ‘suspiciousness’ and ‘no close friends’ than other schizotypal traits. After adjustment for the levels of depressive and anxiety symptoms, the above direct edges remained robust. LimitationsThe use of cross-sectional data indicated only undirected associations between variables. ConclusionsLoneliness was more strongly linked to some schizotypal traits than others, with the relationships maintaining above and beyond the effects of anxiety and depression. These findings warrant further investigation of the specific relationships between loneliness and individual schizotypal traits.

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