Blar i SIHF Open Archive på forfatter "Andreassen, Ole Andreas"
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Autism spectrum disorder polygenic scores are associated with every day executive function in children admitted for clinical assessment
Torske, Tonje; Nærland, Terje; Bettella, Francesco; Bjella, Thomas; Malt, Eva Albertsen; Høyland, Anne Lise; Stenberg, Nina; Øie, Merete Glenne; Andreassen, Ole Andreas (Peer reviewed; Journal article, 2019)Autism spectrum disorder (ASD) and other neurodevelopmental disorders (NDs) are behaviorally defined disorders with overlapping clinical features that are often associated with higher-order cognitive dysfunction, particularly ... -
Disrupted global metastability and static and dynamic brain connectivity across individuals in the Alzheimer's disease continuum
Córdova-Palomera, Aldo; Kaufmann, Tobias; Persson, Karin; Alnæs, Dag; Doan, Nhat Trung; Moberget, Torgeir; Lund, Martina Jonette; Barca, Maria Lage; Engvig, Andreas; Brækhus, Anne; Engedal, Knut; Andreassen, Ole Andreas; Selbæk, Geir; Westlye, Lars Tjelta (Peer reviewed; Journal article, 2017)As findings on the neuropathological and behavioral components of Alzheimer's disease (AD) continue to accrue, converging evidence suggests that macroscale brain functional disruptions may mediate their association. Recent ... -
Distinguishing early and late brain aging from the Alzheimer's disease spectrum: Consistent morphological patterns across independent samples
Doan, Nhat Trung; Engvig, Andreas; Zaske, Krystal; Persson, Karin; Lund, Martina Jonette; Kaufmann, Tobias; Còrdova Palomera, Aldo; Alnæs, Dag; Moberget, Torgeir; Brækhus, Anne; Barca, Maria Lage; Nordvik, Jan Egil; Engedal, Knut; Agartz, Ingrid; Selbæk, Geir; Andreassen, Ole Andreas; Westlye, Lars Tjelta (Journal article; Peer reviewed, 2017)Abstract Alzheimer's disease (AD) is a debilitating age-related neurodegenerative disorder. Accurate identification of individuals at risk is complicated as AD shares cognitive and brain features with aging. We applied ... -
Examining the association between genetic liability for schizophrenia and psychotic symptoms in Alzheimer's disease
Creese, Byron; Vassos, Evangelos; Bergh, Sverre; Athanasiu, Lavinia; Johar, Iskandar; Rongve, Arvid; Medbøen, Ingrid Tøndel; Da Silva, Miguel Vasconcelos; Aakhus, Eivind; Andersen, Fred; Bettella, Francesco; Brækhus, Anne; Djurovic, Srdjan; Paroni, Giulia; Proitsi, Petroula; Saltvedt, Ingvild; Seripa, Davide; Stordal, Eystein; Fladby, Tormod; Aarsland, Dag; Andreassen, Ole Andreas; Ballard, Clive; Selbæk, Geir (Journal article; Peer reviewed, 2019)Psychosis (delusions or hallucinations) in Alzheimer’s disease (AD + P) occurs in up to 50% of individuals and is associated with significantly worse clinical outcomes. Atypical antipsychotics, first developed for ... -
High levels of anomalous self-experience are associated with longer duration of untreated psychosis
Haug, Elisabeth; Øie, Merete Glenne; Andreassen, Ole Andreas; Bratlien, Unni; Barnaby, Nelson; Melle, Ingrid; Møller, Paul (Peer reviewed; Journal article, 2017)Aim To investigate the relationship between anomalous self-experiences and duration of untreated psychosis in a sample of patients with first episode schizophrenia spectrum disorders. Methods Anomalous self-experiences ... -
Meta-analysis of Alzheimer’s disease on 9,751 samples from Norway and IGAP study identifies four risk loci
Witoelar, Aree; Rongve, Arvid; Almdahl, Ina Selseth; Ulstein, Ingun; Engvig, Andreas; White, Linda Rosemary; Selbæk, Geir; Stordal, Eystein; Andersen, Fredrik; Brækhus, Anne; Saltvedt, Ingvild; Engedal, Knut; Hughes, Timothy; Bergh, Sverre; Bråthen, Geir; Bogdanovic, Nenad; Bettella, Francesco; Wang, Yunpeng; Athanasiu, Lavinia; Bahrami, Shahram; Le Hellard, Stephanie; Giddaluru, Sudheer; Dale, Anders M; Sando, Sigrid Botne; Steinberg, Stacy; Stefansson, Hreinn; Snaedal, Jon; Desikan, Rahul S; Stefansson, Kari; Aarsland, Dag; Djurovic, Srdjan; Fladby, Tormod; Andreassen, Ole Andreas (Peer reviewed; Journal article, 2018)A large fraction of genetic risk factors for Alzheimer's Disease (AD) is still not identified, limiting the understanding of AD pathology and study of therapeutic targets. We conducted a genome-wide association study (GWAS) ... -
Metacognitive aspects of executive function are highly associated with social functioning on parent-rated measures in children with Autism Spectrum Disorder
Torske, Tonje; Nærland, Terje; Øie, Merete Glenne; Stenberg, Nina; Andreassen, Ole Andreas (Peer reviewed; Journal article, 2018)Autism Spectrum Disorder (ASD) is characterized by social dysfunction. Even though executive dysfunction has been recognized as important in understanding ASD, the findings are inconsistent. This might be due to different ... -
Sex as a Moderator Between Parent Ratings of Executive Dysfunction and Social Difficulties in Children and Adolescents with Autism Spectrum Disorder
Torske, Tonje; Nærland, Terje; Quintana, Daniel; Hypher, Ruth Elizabeth; Kaale, Anett; Høyland, Anne Lise; Hope, Sigrun; Johannessen, Tor Jarle; Øie, Merete Glenne; Andreassen, Ole Andreas (Peer reviewed; Journal article, 2022)Girls and boys might differ in autistic symptoms and associated cognitive difficulties such as executive function (EF). We investigated sex differences in the relationship between parent rated EF and autistic symptoms in ... -
The association between anomalous self-experiences, self-esteem and depression in first episode schizophrenia
Haug, Elisabeth; Øie, Merete Glenne; Andreassen, Ole Andreas; Møller, Paul; Melle, Ingrid; Romm, Kristin Lie; Bratlien, Unni (Journal article; Peer reviewed, 2016)