Thomas Bjella

Dec 17, 2023 | nature.com | Lars T. Westlye |Thomas Bjella |Linn Sofie Sæther |Ingrid Melle |Ole A. Andreassen |Dag Alnæs | +2 more

AbstractThere is substantial cognitive heterogeneity among patients with schizophrenia (SZ) and bipolar disorders (BD). More knowledge about the magnitude and clinical correlates of performance variability could improve our understanding of cognitive impairments. Using double generalized linear models (DGLMs) we investigated cognitive mean and variability differences between patients with SZ (n = 905) and BD spectrum disorders (n = 522), and healthy controls (HC, n = 1170) on twenty-two variables.

Jun 26, 2023 | nature.com | Guy Hindley |Alexey Shadrin |Shahram Bahrami |Børge Holen |Thomas Bjella |Gail Davies | +5 more

Author notesThese authors contributed equally: Guy Hindley, Alexey A. Shadrin. Authors and AffiliationsNORMENT Centre, Institute of Clinical Medicine, University of Oslo and Division of Mental Health and Addiction, Oslo University Hospital, Oslo, NorwayGuy Hindley, Alexey A. Shadrin, Dennis van der Meer, Nadine Parker, Weiqiu Cheng, Kevin S. O’Connell, Shahram Bahrami, Aihua Lin, Naz Karadag, Børge Holen, Thomas Bjella, Torill Ueland, Olav B. Smeland, Oleksandr Frei & Ole A.

Jun 17, 2023 | nature.com | Anja Torsvik |Srdjan Djurovic |Jonelle D. Villar |Anne-Kristin Stavrum |Thomas Bjella |Niels Eiel Steen

Patients with schizophrenia and healthy controls were recruited through the Thematically Organised Psychosis (TOP) study cohort at the Norwegian Centre for Mental Disorders Research (NORMENT, Oslo, Norway; (https://www.med.uio.no/norment/english). Diagnoses were obtained by trained clinical psychologists or physicians using the Structured Clinical Interview for DSM-IV Axis I Disorders (SCID-I) [15] with an 82% diagnostic reliability for DSM-IV diagnostic categories [16].