Petter Andreas Ringen

3.3k citations

52 papers · 2.3k indexed · h-index 25

Impact in

Psychiatry and Mental health top 0.5%
- Schizophrenia research and treatment
- Bipolar Disorder and Treatment
- Electroconvulsive Therapy Studies
Biological Psychiatry top 2%
- Tryptophan and brain disorders

Papers in

Psychiatry and Mental health 45
- Schizophrenia research and treatment 41
- Bipolar Disorder and Treatment 29
Clinical Psychology 16
- Child and Adolescent Psychosocial and Emotional Development 5
- Obsessive-Compulsive Spectrum Disorders 4
- Psychopathy, Forensic Psychiatry, Sexual Offending 4

Co-authors: Ole A. Andreassen Astrid B. Birkenaes John Abel Engh Svein Friis Halldóra Jónsdóttir Stein Opjordsmoen Anja Vaskinn Kjetil Sundet
Journals: BMC Psychiatry (4 papers)Acta Psychiatrica Scandinavica (4 papers)Psychiatry Research (4 papers)Psychological Medicine (4 papers)Schizophrenia Research (3 papers)
Partner nations: Norway Sweden Germany

In The Last Decade

Petter Andreas Ringen

50 papers receiving 2.3k citations

Peers

Countries citing papers authored by Petter Andreas Ringen

Since Specialization

Citations

This map shows the geographic impact of Petter Andreas Ringen'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 Petter Andreas Ringen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Petter Andreas Ringen more than expected).

Fields of papers citing papers by Petter Andreas Ringen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Petter Andreas Ringen. 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 Petter Andreas Ringen. The network helps show where Petter Andreas Ringen may publish in the future.

Co-authors

The 25 scholars most cited alongside Petter Andreas Ringen, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with Petter Andreas Ringen Line = papers co-authored together Petter Andreas Ringen links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Severe Mental Illness and Cardiovascular Disease Journal of the American College of Cardiology ·Michael Goldfarb, Marc D. Binder, Johan Detraux, Katherine E. Di Palo, Micioni Db Mv, Rinta Amalia, Ileana L. Piña, Petter Andreas Ringen	2022	88
2	Childhood trauma and cardiometabolic risk in severe mental disorders: The mediating role of cognitive control European Psychiatry ·Synve Hoffart Lunding, Carmen Simonsen, Monica Aas, Linn Rødevand, Maren Caroline Frogner Werner, Jannicke Fjæra Laskemoen, Augusta Tostrud, Petter Andreas Ringen, Trine Vik Lagerberg, Ingrid Melle, Ole A. Andreassen, Torill Ueland, Nils Eiel Steen	2021	7
3	A preliminary study of cortical morphology in schizophrenia patients with a history of violence Psychiatry Research Neuroimaging ·Livinus Legborsi Biibaloo, Lars Magnus Valnes, 経夫吉田, Stener Nerland, Natalia Tesli, A. Craig Mackinnon, Habibeche Salah eddine, Andrés Server, Petter Andreas Ringen, Morten Jacobsen, Ole A. Andreassen, Ingrid Agartz, Ingrid Melle, Unn K. Haukvik	2019	17
4	Predictors for Antipsychotic Dosage Change in the First Year of Treatment in Schizophrenia Spectrum and Bipolar Disorders Frontiers in Psychiatry ·Petter Andreas Ringen, Elina J. Reponen, JOHN F. COLLINS, Xinchun Huang, Nils Eiel Steen, Ingrid Melle	2019	6
5	Reliability and validity of the self-report version of the apathy evaluation scale in first-episode Psychosis: Concordance with the clinical version at baseline and 12 months follow-up Psychiatry Research ·Ann Færden, FU Jia-mei, Carmen Simonsen, Petter Andreas Ringen, Trùng Dương, Ingrid Dieset, Ole A. Andreassen, Ingrid Agartz, Stephen R. Marder, Ingrid Melle	2018	12
6	Psychotic patients who used cannabis frequently before illness onset have higher genetic predisposition to schizophrenia than those who did not Psychological Medicine ·Monica Aas, Ingrid Melle, Francesco Bettella, Srdjan Djurovic, Stéphanie Le Hellard, Thomas Bjella, Petter Andreas Ringen, Trine Vik Lagerberg, Olav B. Smeland, Ingrid Agartz, Ole A. Andreassen, Martin Tesli	2017	17
7	Duration of untreated illness in first-treatment bipolar I disorder in relation to clinical outcome and cannabis use Psychiatry Research ·Mohan Edirisinghe, Petter Andreas Ringen, Sofie R. Aminoff, Francisco Berrospi Espinoza, Tone Hellvin, Trine Vik Lagerberg, Ole A. Andreassen, Ingrid Melle	2016	17
8	Premorbid cannabis use is associated with more symptoms and poorer functioning in schizophrenia spectrum disorder Psychological Medicine ·Petter Andreas Ringen, Ragnar Nesvåg, Jinhyuk Lim, Trine Vik Lagerberg, Elisabeth H. Lange, Else‐Marie Løberg, Ingrid Agartz, Ole A. Andreassen, Ingrid Melle	2016	29
9	Increased Mortality in Schizophrenia Due to Cardiovascular Disease â€“ A Non-Systematic Review of Epidemiology, Possible Causes, and Interventions Frontiers in Psychiatry ·Petter Andreas Ringen, John Abel Engh, Astrid B. Birkenaes, Ingrid Dieset, Ole A. Andreassen	2014	251
10	One year follow-up of alcohol and illicit substance use in first-episode psychosis: Does gender matter? Comprehensive Psychiatry ·Elisabeth H. Lange, Ragnar Nesvåg, Petter Andreas Ringen, Cecilie B. Hartberg, Unn K. Haukvik, Ole A. Andreassen, Ingrid Melle, Ingrid Agartz	2013	28
11	Cannabis use and premorbid functioning as predictors of poorer neurocognition in schizophrenia spectrum disorder Schizophrenia Research ·Petter Andreas Ringen, Ingrid Melle, Akiah Ottesen Berg, Ingrid Agartz, Olav Spigset, Carmen Simonsen, Kjetil Sundet, Ole A. Andreassen	2012	14
12	Excessive cannabis use is associated with earlier age at onset in bipolar disorder European Archives of Psychiatry and Clinical Neuroscience ·Trine Vik Lagerberg, Kjetil Sundet, Sofie R. Aminoff, Akiah Ottesen Berg, Petter Andreas Ringen, Ole A. Andreassen, Ingrid Melle	2011	56
13	Medication Adherence in Outpatients With Severe Mental Disorders Journal of Clinical Psychopharmacology ·Halldóra Jónsdóttir, Stein Opjordsmoen, Astrid B. Birkenaes, John Abel Engh, Petter Andreas Ringen, Anja Vaskinn, Trond Oskar Aamo, Svein Friis, Ole A. Andreassen	2010	101
14	The use of screening instruments for detecting alcohol and other drug use disorders in first-episode psychosis Psychiatry Research ·Ragnar Nesvåg, Elisabeth H. Lange, Ann Færden, Elizabeth Ann Barrett, Gina Gratier de Saint Louis, Petter Andreas Ringen, Ole A. Andreassen, Ingrid Melle, Ingrid Agartz	2010	38
15	Excessive substance use in bipolar disorder is associated with impaired functioning rather than clinical characteristics, a descriptive study BMC Psychiatry ·Trine Vik Lagerberg, Ole A. Andreassen, Petter Andreas Ringen, Akiah Ottesen Berg, Sara Larsson, Ingrid Agartz, Kjetil Sundet, Ingrid Melle	2010	60
16	Opposite relationships between cannabis use and neurocognitive functioning in bipolar disorder and schizophrenia Psychological Medicine ·Petter Andreas Ringen, Anja Vaskinn, Kjetil Sundet, John Abel Engh, Halldóra Jónsdóttir, Carmen Simonsen, Svein Friis, Stein Opjordsmoen, Ingrid Melle, Ole A. Andreassen	2009	52
17	Neurocognitive Dysfunction in Bipolar and Schizophrenia Spectrum Disorders Depends on History of Psychosis Rather Than Diagnostic Group Schizophrenia Bulletin ·Carmen Simonsen, Kjetil Sundet, Anja Vaskinn, Astrid B. Birkenaes, John Abel Engh, Ann Færden, Halldóra Jónsdóttir, Petter Andreas Ringen, Stein Opjordsmoen, Ingrid Melle, Svein Friis, Ole A. Andreassen	2009	245
18	Emotion perception and learning potential: Mediators between neurocognition and social problem-solving in schizophrenia? Journal of the International Neuropsychological Society ·Anja Vaskinn, Kjetil Sundet, Svein Friis, Carmen Simonsen, Astrid B. Birkenaes, Halldóra Jónsdóttir, Petter Andreas Ringen, Ole A. Andreassen	2008	49
19	Measuring cognitive insight in schizophrenia and bipolar disorder: a comparative study BMC Psychiatry ·John Abel Engh, Svein Friis, Astrid B. Birkenaes, Halldóra Jónsdóttir, Petter Andreas Ringen, Torleif Ruud, Kjetil Sundet, Stein Opjordsmoen, Ole A. Andreassen	2007	70
20	The effect of gender on emotion perception in schizophrenia and bipolar disorder Acta Psychiatrica Scandinavica ·Anja Vaskinn, Kjetil Sundet, Svein Friis, Carmen Simonsen, Astrid B. Birkenaes, John Abel Engh, Halldóra Jónsdóttir, Petter Andreas Ringen, Stein Opjordsmoen, Ole A. Andreassen	2007	85

About Petter Andreas Ringen

Petter Andreas Ringen is a scholar working on Psychiatry and Mental health, Clinical Psychology, Pharmacology, Philosophy and Family Practice, having authored 52 papers that have together received 2.3k indexed citations. Recurring topics across this work include Schizophrenia research and treatment (41 papers), Bipolar Disorder and Treatment (29 papers), Cannabis and Cannabinoid Research (12 papers), Mental Health and Psychiatry (7 papers), Cardiac Health and Mental Health (6 papers), Child and Adolescent Psychosocial and Emotional Development (5 papers), Obsessive-Compulsive Spectrum Disorders (4 papers) and Psychopathy, Forensic Psychiatry, Sexual Offending (4 papers). The work is most often cited by research in Psychiatry and Mental health (1.7k citations), Biological Psychiatry (178 citations), Family Practice (72 citations), Clinical Psychology (510 citations) and Philosophy (239 citations). Petter Andreas Ringen has collaborated with scholars based in Norway, Sweden and Germany. Frequent co-authors include Ole A. Andreassen, Astrid B. Birkenaes, John Abel Engh, Svein Friis, Halldóra Jónsdóttir, Stein Opjordsmoen, Anja Vaskinn, Kjetil Sundet, Carmen Simonsen and Ingrid Melle. Their work appears in journals such as BMC Psychiatry, Acta Psychiatrica Scandinavica, Psychiatry Research, Psychological Medicine and Schizophrenia Research.

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