Ole Andreassen

Ole Andreassen is a Professor at the University of Oslo and Head of the Center for Precision Psychiatry at Oslo University Hospital. He is also a Senior Consultant at Nydalen DPS, Oslo University Hospital. His research focuses on the genetic, environmental, and neurobiological mechanisms underlying brain diseases, including mental and neuropsychiatric disorders, with an emphasis on personalized psychiatry and clinical trials.

His educational background includes a cand.med. from the University of Bergen (1993), a PhD (1996), and postdoctoral training at Harvard Medical School (1998–2000). He became a Specialist in Psychiatry in 2006.

Andreassen’s research spans psychiatric genetics, neuroimaging (MRI), psychopharmacology, brain pathology, and the overlap between mental and physical health. He is a pioneer in precision psychiatry, utilizing large-scale genomic and neuroimaging data to understand disease mechanisms and develop targeted treatments. His work frequently involves polygenic risk scores, brain aging, immune system interactions in mental illness, and cross-disorder genetic analyses.

His recent publications reveal a strong emphasis on integrating genetics with brain structure and function, exploring immune and metabolic links to psychiatric disorders, and developing computational tools for precision medicine. Themes include genetic overlap across disorders, sex differences, developmental trajectories, and the impact of environmental factors.

• Fridtjof Nansen Prize for Outstanding Research (2023)
• The Brain Council's Research Award (2024)
• University of Oslo Research Prize (2020)
• Elected Member, Norwegian Academy of Sciences and Letters (2014)
• Fulbright Scholarship (2011)

Andreassen leads a major research center and collaborates extensively in international consortia. He has secured significant research grants and supervises a large research team, though specific student names are not listed. His work has direct implications for improving diagnosis, treatment, and prevention in psychiatry.