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O

Ole A. Andreassen

Oslo University Hospital and University of Oslo

154H-index
2.2KPaper Count
14.5WCitation Count
Published Papers 1049
Publication Date
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Family genetic designs in MoBa provide insights into health and functioning
errNature
IF48.5
err2026-08-19
err0
errOAAI
errElizabeth C. Corfield; Alexey A. Shadrin; Oleksandr Frei; Zillur Rahman; Bayram Cevdet Akdeniz; Tahir Tekin Filiz; Aihua Lin; Isabella Badini; Laura Hegemann; Lavinia Athanasiu; Robyn E. Wootton; Chloe Austerberry; Amanda M. Hughes; Martin Tesli; Espen Hagen; Ragnhild E. Brandlistuen; Espen Moen Eilertsen; Lars T. Westlye; Pål R. Njølstad; Per Magnus; Eivind Hovig; Tetyana Zayats; Helga Ask; Ted Reichborn-Kjennerud; Gibran Hemani; Neil M. Davies; Laurie J. Hannigan; Ole A. Andreassen; Alexandra Karoline Havdahl
errShare
errSave
An AI-Health infrastructure for the Nordic region: technical foundations, data assets, and a roadmap for deployment
errNature Medicine
IF50
err2026-08-14
err0
PREAI
errOle A. Andreassen; Hakon Heimer; Dag Aarsland; Anders M. Dale; Daníel Gudbjartsson; Bo Jacobsson; Ingrid Kockum; Tuuli Lappalainen; Andres Metspalu; Lili Milani; Pål R. Njølstad; Aarno Palotie; Samuli Ripatti; Anders Sandvik; Olav B. Smeland; Hreinn Stefánsson; Kári Stefánsson; Marc Vaudel; Jaak Vilo; Thomas Werge; Søren Brunak; Olli Kallioniemi
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Cancer risk among individuals with mental illness – a systematic review and meta-analysis of nordic register-based prospective studies
errTranslational Psychiatry
IF6.2
err2026-08-01
err0
errOAAI
errXue Xiao; Fatemeh Sadeghi; Gillian Murphy; Zhe Zhang; Ole A. Andreassen; Unnur Valdimarsdóttir; Fang Fang; Mary M. Barker
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errSave
Psychiatric genetic liability is associated with the severity of COVID-19 and other acute respiratory infections: an observational study across five Northern European countries
errGenome Medicine
IF11.2
err2026-07-28
err0
errOAAI
errKadri Kõiv; Ragna Bugge Askeland; Lea Arregui Nordahl Christoffersen; Ingibjörg Magnúsdóttir; Daniel McCartney; Ole A. Andreassen; Thor Aspelund; Sofiya Babok; Mie Topholm Bruun; Archie Campbell; Elizabeth C. Corfield; Maria Didriksen; Christian Erikstrup; Arna Hauksdóttir; Jóhanna Jakobsdóttir; Bitten Aagaard Jensen; Isabella Loft; Reedik Mägi; Dorte Helenius Mikkelsen; Sisse Rye Ostrowski; Johanne Hagen Pettersen; Liam Quinn; Erik Sørensen; Edda Bjork Thordardottir; Yue Wang; Thomas Werge; Helga Ask; Ole Birger Vesterager Pedersen; Unnur Anna Valdimarsdóttir; Kelli Lehto
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Mapping genetic convergence across brain structure, mental health, and cardiometabolic disease
errCommunications Medicine
IF6.3
err2026-07-27
err0
errOAAI
errJakub Kopal; Alexey A. Shadrin; Dennis van der Meer; Olav B. Smeland; Sara E. Stinson; Linn Rødevand; Nadine Parker; Kevin S. O’Connell; Oleksandr Frei; Srdjan Djurovic; Anders M. Dale; Ole A. Andreassen
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errSave
Genome-wide association analyses of borderline personality disorder identify 11 loci and highlight shared risk with mental and somatic disorders
errNature Genetics
IF29
err2026-07-20
err0
errOAAI
errFabian Streit; Swapnil Awasthi; Alisha S. M. Hall; Alice Braun; Maria Niarchou; Eirini Marouli; Oladapo Babajide; Josef Frank; Lea Zillich; Carolin M. Callies; Diana Avetyan; Eric Zillich; Joonas Naamanka; Jean Gonzalez; Arvid Harder; Yi Lu; Zouhair Aherrahrou; Zain-Ul-Abideen Ahmad; Helga Ask; Anthony Batzler; Michael E. Benros; Odette M. Brand-de Wilde; Søren Brunak; Mie T. Bruun; Lea A. N. Christoffersen; Lucía Colodro-Conde; Brandon J. Coombes; Elizabeth C. Corfield; Norbert Dahmen; Maria Didriksen; Khoa M. Dinh; Srdjan Djurovic; Joseph Dowsett; Ole Kristian Drange; Helene Dukal; Susanne Edelmann; Christian Erikstrup; Mariana K. Espinola; Eva Fassbinder; Annika Faucon; Diana S. Ferreira de Sá; Jerome C. Foo; Maria Gilles; Alfonso Gutiérrez-Zotes; Thomas F. Hansen; Magnus Haraldsson; R. Patrick Harper; Alexandra Havdahl; Urs Heilbronner; Stefan Herms; Henrik Hjalgrim; Christopher Hübel; Gitta A. Jacob; Bitten Aagaard; Anders Jorgensen; Martin Jungkunz; Nikolaus Kleindienst; Nora Knoblich; Stefanie Koglin; Julia Kraft; Kristi Krebs; Christopher W. Lee; Yuhao Lin; Stefanie Lis; Amanda Lisoway; Ioannis A. Malogiannis; Amy Martinsen; Tolou Maslahati; Katharina Merz; Andreas Meyer-Lindenberg; Susan Mikkelsen; Christina Mikkelsen; Arian Mobascher; Gerard Muntané; Asmundur Oddsson; Sisse R. Ostrowski; Teemu Palviainen; Ole B. V. Pedersen; Geir Pedersen; Liam Quinn; Matthias A. Reinhard; Florian A. Ruths; Björn H. Schott; Michael Schredl; Emanuel Schwarz; Cornelia E. Schwarze; Michael Schwinn; Tabea Sarah Send; Engilbert Sigurdsson; Katja Simon-Keller; Astros T. Skuladottir; Joaquim Soler; Anne Sonley; Erik Sørensen; Hreinn Stefansson; Peter Straub; Jaana Suvisaari; Martin Tesli; Jacob Træholt; Henrik Ullum; Maja P. Völker; G. Bragi Walters; Rujia Wang; Christian C. Witt; Gerhard Zarbock; Peter Zill; John-Anker Zwart; Ole A. Andreassen; Arnoud Arntz; Joanna M. Biernacka; Martin Bohus; Gerome Breen; Alexander L. Chapman; Sven Cichon; Lea K. Davis; Michael Deuschle; Sebastian Euler; Sabine C. Herpertz; Benjamin Hummelen; Andrea Jobst; Jaakko Kaprio; James L. Kennedy; Kelli Lehto; Klaus Lieb; Lourdes Martorell; Shelley McMain; Richard Musil; Vanessa Nieratschker; Markus M. Nöthen; Frank Padberg; Aarno Palotie; Juan C. Pascual; Nader Perroud; Josep A. Ramos-Quiroga; Ted Reichborn-Kjennerud; Marta Ribases; Stefan Roepke; Dan Rujescu; Sandra Sanchez-Roige; Claudia Schilling; Christian Schmahl; Kari Stefansson; Thorgeir E. Thorgeirsson; Gustavo Turecki; Elisabet Vilella; Thomas Werge; Bendik S. Winsvold; Johannes Wrege; Marcella Rietschel; Stephan Ripke; Stephanie H. Witt
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errSave
Nordic AI-Health: a unique opportunity for discovery and clinical impact
errLancet Regional Health-Europe
IF13
err2026-07-15
err0
errOAAI
errOle A. Andreassen; Hakon Heimer; Søren Brunak; Olli Kallioniemi
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Shared and specific associations of amygdala nuclei volumes with PTSD symptom domains and childhood trauma: An ENIGMA-PGC PTSD mega-analysis
errMolecular Psychiatry
IF10.1
err2026-07-02
err0
errOAAI
errMary S. Mufford; Dennis van der Meer; C. Lexi Baird; Delin Sun; Kevin S. LaBar; Raj Ramesar; Ahmed Hussain; Chadi G. Abdallah; Elpiniki Andrew; Christopher L. Averill; Justin T. Baker; Lee A. Baugh; Jennifer U. Blackford; Jessica Bomyea; Richard A. Bryant; Christopher R. K. Ching; Kyle Choi; Andrew S. Cotton; Judith K. Daniels; Nicholas D. Davenport; Richard J. Davidson; Michael D. De Bellis; Emily L. Dennis; Maria Densmore; Terri A. deRoon-Cassini; Seth G. Disner; Stefan du Plessis; Amit Etkin; Negar Fani; Kelene A. Fercho; Jacklynn Fitzgerald; Elbert Geuze; Evan M. Gordon; Daniel W. Grupe; Ilan Harpaz-Rotem; Courtney C. Russel; Julia I. Herzog; David Hofmann; Anna R. Hudson; Jonathan Ipser; Neda Jahanshad; Tanja Jovanovic; Milissa L. Kaufman; Saskia B. J. Koch; Inga K. Koerte; Mayuresh S. Korgaonkar; John H. Krystal; Ruth Lanius; Christine Larson; Lauren A. M. Lebois; Ifat Levy; Gen Li; Israel Liberzon; Mark W. Logue; Vincent A. Magnotta; Antje Manthey; Adi Maron-Katz; Geoffrey May; Katie A. McLaughlin; Sven C. Mueller; Laura Nawijn; Steven M. Nelson; Yuval Neria; Richard W. J. Neufeld; Jack B. Nitschke; Erin N. O’Leary; Bunmi O. Olatunji; Miranda Olff; Elizabeth A. Olson; Matthew Peverill; K. Luan Phan; Evelyn Pineda; Kerry J. Ressler; Isabelle M. Rosso; Lauren E. Salminen; Kelly Meltzer; Christian Schmahl; Soraya Seedat; Caitlin A. Sharp; Martha E. Shenton; Anika Sierk; Raluca M. Simons; Jeffrey S. Simons; Scott R. Sponheim; Murray B. Stein; Jennifer S. Stevens; Thomas Straube; Benjamin Suarez-Jimenez; Jean Théberge; Sophia I. Thomopolous; Nic J. A. van der Wee; Steven J. A. van der Werff; Theo G. M. van Erp; Sanne J. H. van Rooij; Mirjam van Zuiden; Dick J. Veltman; Robert R. J. M. Vermeiren; Henrik Walter; Xin Wang; Li Wang; Hong Xie; Xi Zhu; Ye Zhu; Paul M. Thompson; Ole A. Andreassen; Dan J. Stein; Rajendra A. Morey; Shareefa Dalvie
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errSave
Using EEG to Measure the Neural Effects of Oxytocin Administration: A Meta-Analysis and Systematic Review
errPsychophysiology
IF2.8
err2026-06-10
err0
PREAI
errElisabeth Deilhaug; Matthijs Moerkerke; Alina I. Sartorius; Heemin Kang; Emilie Meyer Bull; Kjersti M. Walle; Torbjørn Elvsåshagen; Lars T. Westlye; Terje Nærland; Ole A. Andreassen; Daniel S. Quintana
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errSave
Evidence for overlapping genetic architecture between lifestyle factors and severe mental disorders with different patterns across diagnoses
errEBioMedicine
IF10.8
err2026-05-27
err0
errOAAI
errLinn Rødevand; Zillur Rahman; Piotr Jaholkowski; Nadine Parker; Unnur Anna Valdimarsdóttir; Olav Bjerkehagen Smeland; Markos Tesfaye; Pravesh Parekh; Oleksandr Frei; Srdjan Djurovic; Nils Eiel Steen; Anders Martin Dale; Alexey Shadrin; Ole Andreas Andreassen
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errSave
Cerebral cortical alterations in adolescent early-onset psychosis: a surface-based morphometry mega-analysis
errMolecular Psychiatry
IF10.1
err2026-05-19
err0
errOAAI
errStener Nerland; Claudia Barth; Kjetil Nordbø Jørgensen; Laura A. Wortinger; Josefina Castro-Fornieles; Covadonga M. Díaz-Caneja; Joost Janssen; Celso Arango; Gisela Sugranyes; Inmaculada Baeza; Fabrizio Piras; Nerisa Banaj; Federica Piras; Simone Elia; Daniela Vecchio; Mathias Lundberg; Hannes Bohman; Bjørn Rishovd Rund; Elena de la Serna; Adriana Fortea; Christian K. Tamnes; Lars T. Westlye; Runar E. Smelror; Dimitrios Andreou; Erik G. Jönsson; Matthew J. Kempton; Shuqing Si; Marinos Kyriakopoulos; Carrie E. Bearden; Kristen Laulette; Saül Pascual-Diaz; Anne-Kathrin J. Fett; Katherine H. Karlsgodt; Lydia Krabbendam; Peter Kochunov; Sophia I. Thomopoulos; Neda Jahanshad; Anthony James; Sophia Frangou; Anne M. Myhre; Nils Eiel Steen; Ole A. Andreassen; Paul M. Thompson; Ingrid Agartz
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errSave
Thalamic nuclei volumes across psychiatric and neurological disorders: a multi-site magnetic resonance imaging study
errTranslational Psychiatry
IF6.2
err2026-05-13
err0
errOAAI
errV. Mäki-Marttunen; S. Nerland; K. N. Jørgensen; E. A. Høgestøl; J. Rokicki; D. Alnæs; S. Borgwardt; B. Boye; J. Buitelaar; E. Bøen; S. Cervenka; A. Conzelmann; S. Erhardt; B. Franke; E. G. Celius; H. F. Harbo; E. Hilland; P. Hoekstra; C. A. Hartman; R. Jonassen; E. G. Jönsson; N. I. Landrø; K.-P. Lesch; L. A. Maglanoc; P. Pauli; C. M. Sellgren; G. O. Nygaard; J. Oosterlaan; A. Schmidt; E. Schwarz; G. C. Ziegler; I. Agartz; L. T. Westlye; O. A. Andreassen; T. Kaufmann; T. Elvsåshagen
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errSave
Comorbidity alters the genetic relationship between anxiety disorders and major depression
errBiological Psychiatry
IF9
err2026-05-08
err0
errOAAI
errMarkos Tesfaye; Alexey Shadrin; Nadine Parker; Piotr Jaholkowski; Pravesh Parekh; Gleda Kutrolli; Viktoria Birkenæs; Nora R. Bakken; Helga Ask; Guy Hindley; Oleksandr Frei; Srdjan Djurovic; Anders M. Dale; Olav B. Smeland; Kevin S. O’Connell; Ole A. Andreassen
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errSave
Genetic overlap and shared risk loci between autism spectrum disorder and cardiometabolic traits
errMolecular Psychiatry
IF10.1
err2026-04-20
err0
errOAAI
errGerard Muntané; Alexey Shadrin; M. Guardiola-Ripoll; Kevin S. O’Connell; Oleksandr Frei; Terje Naerland; Elisabet Vilella; Ole A. Andreassen
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errSave
Forerunners of conduct disorder and psychosis in the developing brain - insights across time from the ABCD study
errAggression and Violent Behavior
IF3.4
err2026-04-13
err0
errOAAI
errNatalia Tesli; Jaroslav Rokicki; Alexey A. Shadrin; Lars T. Westlye; Ole A. Andreassen; Unn K. Haukvik
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errSave
Distinct metabolic signatures of Alzheimer's and Parkinson's disease revealed through genetic overlap
errEBioMedicine
IF10.8
err2026-04-10
err0
errOAAI
errSara E. Stinson; Alexey A. Shadrin; Zillur Rahman; Linn Rødevand; Iris J. Broce; Geir Selbæk; Hreinn Stefansson; Jan Haavik; Nadine Parker; Elise Koch; Oleksandr Frei; Kevin S. O'Connell; Olav B. Smeland; Srdjan Djurovic; Anders M. Dale; Dennis van der Meer; Ole A. Andreassen
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errSave
Local chemoarchitecture explains widespread lower cortical thickness associated with clinical high risk for psychosis
errMolecular Psychiatry
IF10.1
err2026-04-04
err0
PREAI
errXi Yang; Ingrid Agartz; Ole Andreassen; Peter Bachman; Inmaculada Baeza; Cali Bartholomeusz; Stefan Borgwardt; Sunah Choi; Tiziano Colibazzi; Rebecca Cooper; Cheryl Corcoran; Camilo de la Fuente-Sandoval; Bjørn Ebdrup; Adriana Fortea; Birte Yding Glenthøj; Louise Birkedal Glenthøj; Shalaila Haas; Holly Hamilton; Rebecca Hayes; Ying He; Karsten Heekeren; Wenche ten Velden Hegelstad; Christine Hooker; Michael Kaess; Kiyoto Kasai; Naoyuki Katagiri; Minah Kim; Jochen Kindler; Shinsuke Koike; Tina Kristensen; Jun Soo Kwon; Stephen Lawrie; Jimmy Lee; Ashleigh Lin; Rachel Loewy; Daniel Mathalon; Patrick McGorry; Chantal Michel; Paul Møller; Takahiro Nemoto; Marta Pena; Jayachandra Raghava; Francisco Reyes-Madrigal; Luis Rivera-Chávez; Wulf Rössler; Daiki Sasabayashi; Ulrich Schall; Andre Schmidt; Lukasz Smigielski; Mikkel Sørensen; Gisela Sugranyes; Tsutomu Takahashi; Christian Tamnes; Jinsong Tang; Anastasia Theodoridou; Jordina Tor; Peter Uhlhaas; Tor Værnes; Esther Via; Sophia Vinogradov; James Waltz; Lars Westlye; Stephen Wood; Hidenori Yamasue; Alison Yung; Juan Zhou; Paolo Fusar-Poli; Romina Mizrahi; Vanessa Cropley; Paul Thompson; Therese van Amelsvoort; Maria Jalbrzikowski; Benjamin Becker; David E. J. Linden; Dennis Hernaus
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errSave
Cortical morphometry might predict currently prescribed vs. discontinued medications in bipolar disorder, even after controlling for the cumulative dose effects: An ENIGMA mega-analysis
errMolecular Psychiatry
IF10.1
err2026-03-27
err0
PREAI
errLydia Fortea; Miguel Ángel Rivas-Fernández; Aleix Solanes; Sinead King; Leila Nabulsi; Martin Alda; Nina Alexander; Jochen Bauer; Francesco Benedetti; Tiana Borgers; Beatrice Bravi; Irene Bollettini; Erick J. Canales-Rodríguez; Dara M. Cannon; Udo Dannlowski; Annabella Di Giorgio; Kira Flinkenflügel; Paola Fuentes-Claramonte; Lisa Furlong; Ian H. Gotlib; Melissa J. Green; Dominik Grotegerd; Bartholomeus C. M. Haarman; Tim Hahn; Tomas Hajek; Diego Hidalgo-Mazzei; Fleur Howells; Hamidreza Jamalabadi; Andreas Jansen; Melody J. Y. Kang; James A. Karantonis; Andriana Karuk; Tilo Kircher; Elisabeth J. Leehr; Yanghee Im; Sean McWhinney; Susanne Meinert; Elisa MT Melloni; Igor Nenadić; Andrea Pfennig; Sara Poletti; Edith Pomarol-Clotet; Yann Quidé; Susan L. Rossell; Matthew D. Sacchet; Raymond Salvador; Fabio Sambataro; Salvador Sarró; Freda Scheffler; Kang Sim; Dan J. Stein; Frederike Stein; Benjamin Straube; Henk Temmingh; Lea Teutenberg; Florian Thomas-Odenthal; Sophia I. Thomopoulos; Tamsyn E. Van Rheenen; Enric Vilajosana; Ling-Li Zeng; Ole A. Andreassen; Eduard Vieta; Paul M. Thompson; Colm McDonald; Christopher R. K. Ching; Joaquim Radua
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errSave
Leveraging the genetics of psychiatric disorders to prioritize potential drug targets and compounds
errNeuropsychopharmacology
IF7.1
err2026-03-07
err0
PREAI
errNadine Parker; Elise Koch; Alexey A. Shadrin; Julian Fuhrer; Guy F. L. Hindley; Sara E. Stinson; Piotr Jaholkowski; Markos Tesfaye; Anders M. Dale; Thomas S. Wingo; Aliza P. Wingo; Oleksandr Frei; Kevin S. O’Connell; Olav B. Smeland; Ole A. Andreassen
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errSave
Gene dosage effects of 22q11.2 copy number variants on in-vivo measures of white matter axonal density and dispersion
errMolecular Psychiatry
IF10.1
err2026-02-20
err0
errOAAI
errRune Boen; Julio E. Villalón-Reina; Leila Kushan; Kathleen P. O’Hora; Hoki Fung; Nadine Parker; Ibrahim A. Akkouh; Dag Alnæs; Ruth O’Hara; Matthew John Marzelli; Lara Foland-Ross; Christina French Chick; Isabelle Cotto; Allan L. Reiss; Joachim Hallmayer; Paul M. Thompson; Ole A. Andreassen; Ida E. Sønderby; Carrie E. Bearden
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Research Directions

No research directions
Co-authors
Cooperation Journals
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