Ole A. Andreassen

144.9k total citations · 7 hit papers
936 papers, 31.0k citations indexed

About

Ole A. Andreassen is a scholar working on Psychiatry and Mental health, Genetics and Cognitive Neuroscience. According to data from OpenAlex, Ole A. Andreassen has authored 936 papers receiving a total of 31.0k indexed citations (citations by other indexed papers that have themselves been cited), including 371 papers in Psychiatry and Mental health, 236 papers in Genetics and 191 papers in Cognitive Neuroscience. Recurrent topics in Ole A. Andreassen's work include Schizophrenia research and treatment (251 papers), Genetic Associations and Epidemiology (183 papers) and Bipolar Disorder and Treatment (178 papers). Ole A. Andreassen is often cited by papers focused on Schizophrenia research and treatment (251 papers), Genetic Associations and Epidemiology (183 papers) and Bipolar Disorder and Treatment (178 papers). Ole A. Andreassen collaborates with scholars based in Norway, United States and Sweden. Ole A. Andreassen's co-authors include Ingrid Melle, Ingrid Agartz, Lars T. Westlye, Srdjan Djurovic, Robert J. Ferrante, Anders M. Dale, Alpaslan Dedeoglu, Kjetil Sundet, Tobias Kaufmann and Nils Eiel Steen and has published in prestigious journals such as Science, Proceedings of the National Academy of Sciences and Nature Medicine.

In The Last Decade

Ole A. Andreassen

906 papers receiving 30.6k citations

Hit Papers

5 papers align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Mice Deficient in Cellular Glutathione Peroxidase Show Increased Vulnerability to Malonate, 3-Nitropropionic Acid, and 1-Methyl-4-Phenyl-1,2,5,6-Tetrahydropyridine

2000 980 citations Ole A. Andreassen et al. profile →
A global overview of pleiotropy and genetic architecture in complex traits

2019 670 citations Oleksandr Frei, Ole A. Andreassen et al. profile →
Neuroprotective effects of creatine in a transgenic animal model of amyotrophic lateral sclerosis

1999 554 citations Ole A. Andreassen et al. profile →
Psychiatric Genomics: An Update and an Agenda

2017 341 citations Cynthia M. Bulik, Ole A. Andreassen et al. profile →
Oxytocin pathway gene networks in the human brain

2019 242 citations Daniel Quintana, Dennis van der Meer et al. profile →
Risk and protective factors for mental disorders beyond genetics: an evidence‐based atlas

2021 153 citations Ole A. Andreassen et al. profile →
New insights from the last decade of research in psychiatric genetics: discoveries, challenges and clinical implications

2023 93 citations Ole A. Andreassen, Guy Hindley et al. profile →

Peers

Countries citing papers authored by Ole A. Andreassen

Since Specialization

Citations

This map shows the geographic impact of Ole A. Andreassen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ole A. Andreassen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ole A. Andreassen more than expected).

Fields of papers citing papers by Ole A. Andreassen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ole A. Andreassen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ole A. Andreassen. The network helps show where Ole A. Andreassen may publish in the future.

Co-authorship network of co-authors of Ole A. Andreassen

This figure shows the co-authorship network connecting the top 25 collaborators of Ole A. Andreassen. A scholar is included among the top collaborators of Ole A. Andreassen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ole A. Andreassen. Ole A. Andreassen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

#	Work	Indexed citations
1	Subjective cognition in schizophrenia and bipolar disorder: Investigation of group differences and associations with objective cognition and clinical characteristics using a novel measure of subjective cognition 2025 ·Schizophrenia Research Cognition ·(unknown), (unknown), Anja Vaskinn, Christine Mohn, (unknown), Ole A. Andreassen, Trine Vik Lagerberg, Ingrid Melle, Merete Glenne Øie, Torill Ueland, Beathe Haatveit	2
2	Elevated levels of peripheral and central nervous system immune markers reflect innate immune dysregulation in autism spectrum disorder 2024 ·Psychiatry Research ·Attila Szabó, Kevin S. O’Connell, Ibrahim A. Akkouh, Thor Ueland, Ida E. Sønderby, Sigrun Hope, Anne Roe, (unknown), Ivar Sjaastad, Nils Eiel Steen, Torill Ueland, (unknown), (unknown), Ole A. Andreassen, Terje Nærland, Srdjan Djurovic	3
3	Exploration of MDMA-assisted therapy for major depressive disorder: a proof of principle study 2024 ·Neuroscience Applied ·(unknown), (unknown), Joanna Róg, (unknown), (unknown), (unknown), Lynn Mørch‐Johnsen, Ole A. Andreassen	0
4	Delirium is frequently underdiagnosed among older hospitalised patients despite available information in hospital medical records 2024 ·Age and Ageing ·(unknown), Kristoffer Haugarvoll, (unknown), Tone M. Norekvål, Ragnhild Eide Skogseth, Ole A. Andreassen, Dag Årsland, Bjørn Erik Neerland, Jan Erik Nordrehaug, Grethe S. Tell, Lasse M. Giil	10
5	Neurocognitive function and delusion severity in schizophrenia spectrum disorders 2024 ·Schizophrenia Research ·Christine Mohn, Torill Ueland, (unknown), (unknown), Trine Vik Lagerberg, Ole A. Andreassen, Ingrid Melle, Anja Vaskinn	1
6	Dissecting the Shared Genetic Architecture of Common Epilepsies With Cortical Brain Morphology 2024 ·Neurology Genetics ·Naz Karadag, Espen Hagen, Alexey Shadrin, Dennis van der Meer, Kevin S. O’Connell, Zillur Rahman, (unknown), Nadine Parker, Shahram Bahrami, Vera Fominykh, Kjell Heuser, Erik Taubøll, Nils Eiel Steen, Srdjan Djurovic, Anders M. Dale, Oleksandr Frei, Ole A. Andreassen, Olav B. Smeland	2
7	Eating Problems Among Adolescent Boys and Girls Before and During the Covid‐19 Pandemic 2024 ·International Journal of Eating Disorders ·(unknown), (unknown), Kristin Gustavson, Ingunn Olea Lund, (unknown), Cynthia M. Bulik, Ole A. Andreassen, Alexandra Havdahl, Ragnhild Eek Brandlistuen, Laurie J. Hannigan, Helga Ask	1
8	Telomere biology and its maintenance in schizophrenia spectrum disorders: Exploring links to cognition 2024 ·Schizophrenia Research ·(unknown), Ibrahim A. Akkouh, Els F. Halff, Deepak P. Srivastava, (unknown), Torill Ueland, Daniel Quintana, (unknown), Nils Eiel Steen, Srdjan Djurovic, Ole A. Andreassen, Monica Aas	2
9	Mapping cerebellar anatomical heterogeneity in mental and neurological illnesses 2024 ·Nature Mental Health ·(unknown), Esten H. Leonardsen, Saige Rutherford, Geir Selbæk, Karin Persson, Nils Eiel Steen, Olav B. Smeland, Torill Ueland, Geneviève Richard, Christian F. Beckmann, André F. Marquand, Ole A. Andreassen, Lars T. Westlye, Thomas Wolfers, Torgeir Moberget	2
10	Genetic Overlap Between Global Cortical Brain Structure, C-Reactive Protein, and White Blood Cell Counts 2023 ·Biological Psychiatry ·Nadine Parker, Weiqiu Cheng, Guy Hindley, Kevin S. O’Connell, (unknown), Børge Holen, Alexey Shadrin, Zillur Rahman, Naz Karadag, Shahram Bahrami, Aihua Lin, Nils Eiel Steen, Thor Ueland, Pål Aukrust, Srdjan Djurovic, Anders M. Dale, Olav B. Smeland, Oleksandr Frei, Ole A. Andreassen	10
11	Bounding the average causal effect in Mendelian randomisation studies with multiple proposed instruments: An application to prenatal alcohol exposure and attention deficit hyperactivity disorder 2023 ·Paediatric and Perinatal Epidemiology ·Elizabeth W. Diemer, Alexandra Havdahl, Ole A. Andreassen, Marcus R. Munafò, Pål R. Njølstad, Henning Tiemeier, Luisa Zuccolo, Sonja A. Swanson	4
12	Precision medicine in complex diseases—Molecular subgrouping for improved prediction and treatment stratification 2023 ·Journal of Internal Medicine ·Åsa Johansson, Ole A. Andreassen, Søren Brunak, Paul W. Franks, Harald Hedman, Ruth J. F. Loos, Benjamin Meder, Erik Melén, Craig E. Wheelock, Bo Jacobsson	35
13	Pleiotropy with sex-specific traits reveals genetic aspects of sex differences in Parkinson’s disease 2023 ·Brain ·Kaja Nordengen, Chiara Cappelletti, Shahram Bahrami, Oleksandr Frei, Lasse Pihlstrøm, (unknown), Hanneke Geut, Annemieke J.M. Rozemüller, Wilma D. J. van de Berg, Ole A. Andreassen, Mathias Toft	7
14	Genetic architecture of brain age and its causal relations with brain and mental disorders 2023 ·Molecular Psychiatry ·Esten H. Leonardsen, Didac Vidal‐Piñeiro, James M. Roe, Oleksandr Frei, Alexey Shadrin, (unknown), Ann‐Marie G. de Lange, Tobias Kaufmann, Bernd Taschler, Stephen M. Smith, Ole A. Andreassen, Thomas Wolfers, Lars T. Westlye, Yunpeng Wang	19
15	Birth order differences in education originate in postnatal environments 2022 ·PNAS Nexus ·(unknown), Jeremy Freese, Ole A. Andreassen, Torkild Hovde Lyngstad	3
16	In Vivo Amygdala Nuclei Volumes in Schizophrenia and Bipolar Disorders 2021 ·Schizophrenia Bulletin ·Cláudia Barth, Stener Nerland, Ann‐Marie G. de Lange, Laura A. Wortinger, Eva Hilland, Ole A. Andreassen, Kjetil Nordbø Jørgensen, Ingrid Agartz	29
17	Maternal and offspring genetic risk score analyses of fetal alcohol exposure and attention‐deficit hyperactivity disorder risk in offspring 2021 ·Alcoholism Clinical and Experimental Research ·(unknown), Hannah Sallis, Eivind Ystrøm, Pål R. Njølstad, Ole A. Andreassen, Ted Reichborn‐Kjennerud, Marcus R. Munafò, Alexandra Havdahl, Luisa Zuccolo	4
18	Genetic Liability for Schizophrenia and Childhood Psychopathology in the General Population 2020 ·Schizophrenia Bulletin ·Laurie J. Hannigan, Ragna Bugge Askeland, Helga Ask, Martin Tesli, Elizabeth C. Corfield, Ziada Ayorech, Øyvind Helgeland, Per Magnus, Pål R. Njølstad, Anne‐Siri Øyen, Camilla Stoltenberg, Ole A. Andreassen, George Davey Smith, Ted Reichborn‐Kjennerud, Alexandra Havdahl	9
19	Prominent health problems, socioeconomic deprivation, and higher brain age in lonely and isolated individuals: A population-based study 2020 ·PsyArXiv (OSF Preprints) ·Ann‐Marie G. de Lange, Tobias Kaufmann, Daniel Quintana, Adriano Winterton, Ole A. Andreassen, Lars T. Westlye, Klaus P. Ebmeier	5
20	Correction: CACNA1C Risk Variant and Amygdala Activity in Bipolar Disorder, Schizophrenia and Healthy Controls 2013 ·PLoS ONE ·Martin Tesli, Kristina C. Skåtun, Olga Therese Ousdal, Andrew Brown, Christian Thoresen, Ingrid Agartz, Ingrid Melle, Srdjan Djurovic, Jimmy Jensen, Ole A. Andreassen	10

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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