رسالة جامعية

Predictors of psychosis risk and neurocognitive deficits

التفاصيل البيبلوغرافية
العنوان: Predictors of psychosis risk and neurocognitive deficits
المؤلفون: Ramsay, H. (Hugh)
المساهمون: Veijola, J. (Juha), Miettunen, J. (Jouko), Barnett, J. (Jenny)
بيانات النشر: Oulun yliopisto
سنة النشر: 2017
المجموعة: Jultika - University of Oulu repository / Oulun yliopiston julkaisuarkisto
مصطلحات موضوعية: cognition, metabolomics, prenatal exposure to maternal cigarette smoking, psychosis risk, kognitio, metabolia, psykoosiriski, äidin raskaudenaikainen tupakointi, BDNF, COMT, DRD2
الوصف: Psychotic disorders usually become evident during adolescence and early adulthood and are commonly preceded by psychosis risk states. Young people at risk for developing psychosis may already have cognitive deficits. This research examined factors associated with psychosis risk and adverse cognitive performance, particularly in those at risk for developing psychosis. We aimed to characterise genetic risk factors for psychosis risk and adverse cognitive performance. Additionally, early and later biological risk markers for adverse cognitive performance and psychosis risk were explored. Two longitudinal birth cohorts, the Northern Finland Birth Cohort 1986 (NFBC 1986, n=6,985 at 16 years) and Avon Longitudinal Study of Parents and Children (ALSPAC, n=5,217 at 17 years), two NFBC 1986 sub-studies, the Oulu Brain and Mind 1 (n=182 for these analyses) and Oulu Brain and Mind 2 (n=471 for these analyses) studies, and two Irish case control studies, the Adolescent Brain Development (n=212) and Challenging Times (n=211) studies, were utilised. Predictors of interest were selected Single Nucleotide Polymorphisms (SNPs at COMT, BDNF and DRD2), prenatal exposure to maternal cigarette smoking (PEMCS) and adolescent metabolic measures. Though not directly associated with psychotic experiences, the COMT-Val158Met Val-Val genotype interacted with experience of childhood trauma to predict more psychotic experiences. Two DRD2 SNPs were associated with poorer cognitive performance, though only in those with risk for psychotic disorders. PEMCS was associated with adult vocabulary and matrix reasoning performance in males, though not in males with adolescent psychotic experiences. Adolescent academic performance, but not psychotic experiences, were associated with metabolic measures, especially with ratios of omega-3 to total fatty acids. These findings impact on prevention strategies for long-term adverse outcomes. Some risk factors differ for those with psychotic experiences compared to the general population, while ...
نوع الوثيقة: doctoral or postdoctoral thesis
وصف الملف: application/pdf
اللغة: English
العلاقة: info:eu-repo/semantics/altIdentifier/pissn/0355-3221; info:eu-repo/semantics/altIdentifier/eissn/1796-2234
الإتاحة: http://urn.fi/urn:isbn:9789526216928Test
حقوق: info:eu-repo/semantics/openAccess ; © University of Oulu, 2017
رقم الانضمام: edsbas.9F7AB34E
قاعدة البيانات: BASE