Ian Kelleher

TL;DR: A systematic review of all published literature on psychotic symptom prevalence in two age groups, children aged 9–12 years and adolescents aged 13–18 years, searching through electronic databases PubMed, Ovid Medline, PsycINFO and EMBASE up to June 2011 and extracted prevalence rates.

TL;DR: The criterion and construct validity of the non-clinical psychosis phenotype with schizophrenia demonstrates that it is a valid population in which to study the aetiology of psychosis, and suggests shared genetic variation between the clinical and non- clinical phenotypes.

TL;DR: YAM was effective in reducing the number of suicide attempts and severe suicidal ideation in school-based adolescents, and underline the benefit of this universal suicide preventive intervention in schools.

TL;DR: Investigating the relationship between psychotic symptoms and non-psychotic psychopathology in community samples of adolescents in terms of prevalence, co-occurring disorders, comorbid (multiple) psychopathology and variation across early v. middle adolescence found psychotic symptoms are important risk markers for a wide range of non- Psychotic psychopathological disorders.

TL;DR: The authors found that exposure to childhood trauma predicted newly incident psychotic experiences, and provides the first direct evidence that cessation of traumatic experiences leads to a reduced incidence of psychotic experiences.