Rimvall MK, van Os J, Verhulst F, et al. - In a longitudinal register-based follow-up study of the Copenhagen Child Cohort 2000, researchers ascertained if psychotic experiences at ages 11–12 anticipated a psychiatric diagnosis or treatment with psychotropic medications by ages 16–17. In total, 1,632 children ages 11–12 were evaluated for psychotic experiences in face-to-face interviews. In addition, the children were evaluated for mental disorders and IQ. According to findings, psychotic childhood experiences predict the use of mental health services and the use of psychotropic drugs during adolescence. The findings from the research provide clear evidence that preadolescence psychotic experiences index a transdiagnostic vulnerability in adolescence to diagnosed psychopathology.