Developing a cognitive model of distressing unusual experiences in adolescents, an explanatory study

Student thesis: Doctoral ThesisDoctor of Clinical Psychology


Childhood onset mental health difficulties are known to be associated with later mental health disorders and worse prognoses in adulthood. Individuals who develop schizophrenia present from childhood onwards with cognitive deficits, psychotic-like experiences (PLEs), and internalising and externalising problems. People with a diagnosis of a schizophrenia spectrum disorder (SSD) are also more likely than people without this diagnosis to engage in aggressive behaviour towards others. This systematic review examines the evidence base investigating associations between childhood externalising problems (EP) and later psychotic symptoms.

Searches were conducted on Ovid (Medline and Psychinfo), Pubmed and Scopus. PRISMA best practice guidelines for conducting systematic literature reviews were followed. Data was extracted from pre-defined items and assessed using a quality rating scale.
Date of Award3 Aug 2020
Original languageEnglish
Awarding Institution
  • King's College London
SupervisorSuzanne Jolley (Supervisor)

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