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AIMS: Theory of Mind (ToM) is often impaired in early and chronic phases of psychosis and it is often suggested that poor ToM is a trait vulnerability for psychosis. The aim of this study was to examine in an adolescent sample whether childhood ToM abilities can predict psychotic experiences over a period of six years and whether this is mediated by social functioning. To examine whether ToM is a specific predictor for psychosis, symptoms of depression and anxiety were also examined.

MATERIALS AND METHODS: A baseline case-control sample (T0: age 7-8 years) with and without auditory vocal hallucinations (AVH) in the general population was assessed after five years (T1: age 12-13 years) on ToM ability (ToM Storybook Frank), and after eleven years (T2: age 18-19 years) on psychotic experiences (Community Assessment of Psychic Experiences; CAPE), depressive and anxiety symptoms (Depression Anxiety and Stress Scale; DASS-21), and social functioning (Groningen Questionnaire on Social Behaviour; GSVG-45). Analyses were conducted on a subsample of 157 adolescents aged 18-19 years (T2) who had data available on ToM ability at T1.

RESULTS: ToM at T1 was not predictive of psychotic experiences after six years (from age 12-13 to age 18-19) and social functioning was also not a mediator. ToM was not associated with psychopathology in general (depressive and anxiety symptoms) over six years (from age 12-13 to age 18-19).

CONCLUSIONS: The current study found no evidence for a longitudinal association between ToM ability and psychotic experiences, social functioning, and symptoms of depression and anxiety, in adolescence.

Originele taal-2English
Aantal pagina's14
TijdschriftPLoS ONE
Nummer van het tijdschrift2
StatusPublished - 28-feb.-2019

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