Petter Andreas Ringen

Petter Andreas Ringen is a Professor at the Division of Mental Health and Addiction, Faculty of Medicine, University of Oslo. His research focuses on severe mental disorders, cannabis use, neurocognitive functioning, and cardiometabolic risks in psychiatric populations.

• Current position: Professor II, Division of Mental Health and Addiction, University of Oslo
• Email: p.a.ringen@medisin.uio.no
• Visiting address: Sognsvannsveien 21, Gaustad sykehus, Oslo

Research interests span cannabis interactions with schizophrenia and bipolar disorders, violence in mental health contexts, cardiometabolic risk management, and neurocognitive assessments. Key projects include the 'Extreme Challenges' study on self-harm and the 'sTOP' initiative examining violence in severe mental disorders.

2025 publications address consciousness in psychosis and cardiometabolic health interventions. 2024 work explores violence phenomenology and hypothalamic structures in offenders. 2023 studies examine substance use mediation, clinical insight, and vocational rehabilitation. Earlier research (2005-2014) investigates cannabis effects on disorder onset, cognitive dysfunction, and medication adherence.

No explicit scientific awards or student advisement details provided in the text.

Contributes to major journals including Tidsskrift for Den norske legeforening, BMC Psychiatry, and Schizophrenia Research, with ongoing work in forensic psychiatry and public health implications.