The Network Structure of Schizotypal Personality Traits

Eduardo Fonseca-Pedrero*, Javier Ortuño, Martin Debbané, Raymond C.K. Chan, David Cicero, Lisa C. Zhang, Colleen Brenner, Emma Barkus, Richard J. Linscott, Thomas Kwapil, Neus Barrantes-Vidal, Alex Cohen, Adrian Raine, Michael T. Compton, Erin B. Tone, Julie Suhr, Felix Inchausti, Julio Bobes, Axit Fumero, Stella GiakoumakiIoannis Tsaousis, Antonio Preti, Michael Chmielewski, Julien Laloyaux, Anwar Mechri, Mohamed Aymen Lahmar, Viviana Wuthrich, Frank Larøi, Johanna C. Badcock, Assen Jablensky, Adela M. Isvoranu, Sacha Epskamp, Eiko I. Fried*

*Corresponding author for this work

Research output: Contribution to journalArticleResearchpeer-review

37 Citations (Scopus)

Abstract

© The Author(s) 2018. Published by Oxford University Press on behalf of the Maryland Psychiatric Research Center. All rights reserved. For permissions, please email: journals.permissions@oup.com. Elucidating schizotypal traits is important if we are to understand the various manifestations of psychosis spectrum liability and to reliably identify individuals at high risk for psychosis. The present study examined the network structures of (1) 9 schizotypal personality domains and (2) 74 individual schizotypal items, and (3) explored whether networks differed across gender and culture (North America vs China). The study was conducted in a sample of 27001 participants from 12 countries and 21 sites (M age = 22.12; SD = 6.28; 37.5% males). The Schizotypal Personality Questionnaire (SPQ) was used to assess 74 self-report items aggregated in 9 domains. We used network models to estimate conditional dependence relations among variables. In the domain-level network, schizotypal traits were strongly interconnected. Predictability (explained variance of each node) ranged from 31% (odd/magical beliefs) to 55% (constricted affect), with a mean of 43.7%. In the item-level network, variables showed relations both within and across domains, although within-domain associations were generally stronger. The average predictability of SPQ items was 27.8%. The network structures of men and women were similar (r =.74), node centrality was similar across networks (r =.90), as was connectivity (195.59 and 199.70, respectively). North American and Chinese participants networks showed lower similarity in terms of structure (r = 0.44), node centrality (r = 0.56), and connectivity (180.35 and 153.97, respectively). In sum, the present article points to the value of conceptualizing schizotypal personality as a complex system of interacting cognitive, emotional, and affective characteristics.
Original languageEnglish
Pages (from-to)S468-S479
JournalSchizophrenia Bulletin
Volume44
DOIs
Publication statusPublished - 15 Oct 2018

Keywords

  • mental disorders
  • network
  • psychosis
  • schizotypal personality
  • schizotypy
  • SPQ

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