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

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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, Jaroslav Rokicki 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 →

Author Peers

Peers are selected by citation overlap in the author's most active subfields. citations · hero ref

Author						Papers	Cites
Ole A. Andreassen	10.2k	6.4k	6.2k	5.3k	4.1k	936	31.0k
Marion Leboyer	11.0k 1.1×	9.1k 1.4×	4.0k 0.6×	6.1k 1.2×	7.4k 1.8×	614	28.6k
Tyrone D. Cannon	15.5k 1.5×	9.5k 1.5×	3.6k 0.6×	3.7k 0.7×	5.6k 1.4×	479	30.2k
Anil K. Malhotra	8.1k 0.8×	5.4k 0.9×	3.3k 0.5×	2.8k 0.5×	2.4k 0.6×	584	21.9k
Peter Falkai	9.0k 0.9×	8.6k 1.4×	3.5k 0.6×	1.5k 0.3×	3.8k 0.9×	725	26.1k
Siegfried Kasper	10.1k 1.0×	5.6k 0.9×	4.6k 0.8×	1.7k 0.3×	5.0k 1.2×	1.0k	34.8k
Oliver Howes	11.8k 1.2×	7.5k 1.2×	4.4k 0.7×	1.5k 0.3×	3.4k 0.8×	435	27.7k
John J. McGrath	12.5k 1.2×	3.8k 0.6×	3.8k 0.6×	3.6k 0.7×	6.5k 1.6×	579	36.3k
Terry E. Goldberg	11.9k 1.2×	12.5k 2.0×	3.6k 0.6×	2.6k 0.5×	2.8k 0.7×	285	27.5k
Jordan W. Smoller	5.5k 0.5×	8.9k 1.4×	2.7k 0.4×	4.4k 0.8×	4.4k 1.1×	321	24.0k
James L. Kennedy	9.1k 0.9×	5.0k 0.8×	6.2k 1.0×	4.6k 0.9×	5.8k 1.4×	678	26.7k

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

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20 of 20 papers shown

Vaskinn, Anja, Christine Mohn, Ole A. Andreassen, et al.. (2025). 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. Schizophrenia Research Cognition. 40. 100345–100345. 2 indexed citations

Karadag, Naz, Espen Hagen, Alexey Shadrin, et al.. (2024). Dissecting the Shared Genetic Architecture of Common Epilepsies With Cortical Brain Morphology. Neurology Genetics. 10(3). e200143–e200143. 2 indexed citations

Gustavson, Kristin, Ingunn Olea Lund, Cynthia M. Bulik, et al.. (2024). Eating Problems Among Adolescent Boys and Girls Before and During the Covid‐19 Pandemic. International Journal of Eating Disorders. 58(1). 193–205. 1 indexed citations

Akkouh, Ibrahim A., Els F. Halff, Deepak P. Srivastava, et al.. (2024). Telomere biology and its maintenance in schizophrenia spectrum disorders: Exploring links to cognition. Schizophrenia Research. 272. 89–95. 2 indexed citations

Szabó, Attila, Kevin S. O’Connell, Ibrahim A. Akkouh, et al.. (2024). Elevated levels of peripheral and central nervous system immune markers reflect innate immune dysregulation in autism spectrum disorder. Psychiatry Research. 342. 116245–116245. 3 indexed citations

Róg, Joanna, et al.. (2024). Exploration of MDMA-assisted therapy for major depressive disorder: a proof of principle study. Neuroscience Applied. 3. 104179–104179.

Haugarvoll, Kristoffer, Tone M. Norekvål, Ragnhild Eide Skogseth, et al.. (2024). Delirium is frequently underdiagnosed among older hospitalised patients despite available information in hospital medical records. Age and Ageing. 53(2). 10 indexed citations

Mohn, Christine, Torill Ueland, Trine Vik Lagerberg, et al.. (2024). Neurocognitive function and delusion severity in schizophrenia spectrum disorders. Schizophrenia Research. 270. 172–177. 1 indexed citations

Norbom, Linn B., Jaroslav Rokicki, Espen Moen Eilertsen, et al.. (2024). Parental education and income are linked to offspring cortical brain structure and psychopathology at 9–11 years. SHILAP Revista de lepidopterología. 4(1). 9 indexed citations

10.

Andreassen, Ole A., et al.. (2024). Learning Cortical Anomaly through Masked Encoding for Unsupervised Heterogeneity Mapping. 1–5.

11.

Diemer, Elizabeth W., Alexandra Havdahl, Ole A. Andreassen, et al.. (2023). Bounding the average causal effect in Mendelian randomisation studies with multiple proposed instruments: An application to prenatal alcohol exposure and attention deficit hyperactivity disorder. Paediatric and Perinatal Epidemiology. 37(4). 326–337. 4 indexed citations

12.

Johansson, Åsa, Ole A. Andreassen, Søren Brunak, et al.. (2023). Precision medicine in complex diseases—Molecular subgrouping for improved prediction and treatment stratification. Journal of Internal Medicine. 294(4). 378–396. 35 indexed citations

13.

Nordengen, Kaja, Chiara Cappelletti, Shahram Bahrami, et al.. (2023). Pleiotropy with sex-specific traits reveals genetic aspects of sex differences in Parkinson’s disease. Brain. 147(3). 858–870. 7 indexed citations

14.

Parker, Nadine, Weiqiu Cheng, Guy Hindley, et al.. (2023). Genetic Overlap Between Global Cortical Brain Structure, C-Reactive Protein, and White Blood Cell Counts. Biological Psychiatry. 95(1). 62–71. 10 indexed citations

15.

Jahołkowski, Piotr, Guy Hindley, Alexey Shadrin, et al.. (2023). Genome-wide Association Analysis of Schizophrenia and Vitamin D Levels Shows Shared Genetic Architecture and Identifies Novel Risk Loci. Schizophrenia Bulletin. 49(6). 1654–1664. 5 indexed citations

16.

Freese, Jeremy, et al.. (2022). Birth order differences in education originate in postnatal environments. PNAS Nexus. 1(2). pgac051–pgac051. 3 indexed citations

17.

Sallis, Hannah, Eivind Ystrøm, Pål R. Njølstad, et al.. (2021). Maternal and offspring genetic risk score analyses of fetal alcohol exposure and attention‐deficit hyperactivity disorder risk in offspring. Alcoholism Clinical and Experimental Research. 45(10). 2090–2102. 4 indexed citations

18.

Barth, Cláudia, Stener Nerland, Ann‐Marie G. de Lange, et al.. (2021). In Vivo Amygdala Nuclei Volumes in Schizophrenia and Bipolar Disorders. Schizophrenia Bulletin. 47(5). 1431–1441. 29 indexed citations

19.

Hannigan, Laurie J., Ragna Bugge Askeland, Helga Ask, et al.. (2020). Genetic Liability for Schizophrenia and Childhood Psychopathology in the General Population. Schizophrenia Bulletin. 47(4). 1179–1189. 9 indexed citations

20.

Tesli, Martin, Kristina C. Skåtun, Olga Therese Ousdal, et al.. (2013). Correction: CACNA1C Risk Variant and Amygdala Activity in Bipolar Disorder, Schizophrenia and Healthy Controls. PLoS ONE. 8(11). 10 indexed citations

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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