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1

Testing Genetic and Environmental Associations Between Personality Disorders and Cocaine Use: A Population-Based Twin Study

Gillespie, Nathan A., Aggen, Steven H., Gentry, Amanda E., Neale, Michael C., Knudsen, Gun P., Krueger, Robert F., South, Susan C., Czajkowski, Nikolai, Nesvåg, Ragnar, Ystrom, Eivind, Rosenström, Tom

Journal:

Twin Research and Human Genetics

Year:

2018

Language:

english

File:

PDF, 235 KB

english, 2018

2

CORTICAL THICKNESS AND SUBCORTICAL VOLUMES IN SCHIZOPHRENIA AND BIPOLAR DISORDER

Lars M. Rimol, Cecilie Hartberg, Ragnar Nesvåg, Christine Fennema-Notestine, Don Hagler Jr., Chris J. Pung, Robin G. Jennings, Unn K. Haukvik, Elisabeth Lange, Per H. Nakstad, Ingrid Melle, Ole A. And

Journal:

Schizophrenia Research

Year:

2010

Language:

english

File:

PDF, 75 KB

english, 2010

3

Auditory Cortex Characteristics in Schizophrenia: Associations With Auditory Hallucinations

Mørch-Johnsen, Lynn, Nesvåg, Ragnar, Jørgensen, Kjetil N., Lange, Elisabeth H., Hartberg, Cecilie B., Haukvik, Unn K., Kompus, Kristiina, Westerhausen, René, Osnes, Kåre, Andreassen, Ole A., Melle, In

Journal:

Schizophrenia Bulletin

Year:

2016

Language:

english

File:

PDF, 161 KB

english, 2016

4

Poster #M58 BRAIN STRUCTURE CHANGES IN FIRST-EPISODE PSYCHOSIS PATIENTS WITH PERSISTENT APATHY

Mørch-Johnsen, Lynn, Nesvåg, Ragnar, Faerden, Ann, Haukvik, Unn Kristin, Jørgensen, Kjetil Nordbø, Lange, Elisabeth Heffermehl, Melle, Ingrid, Andreassen, Ole Andreas, Agartz, Ingrid

Journal:

Schizophrenia Research

Year:

2014

Language:

english

File:

PDF, 90 KB

english, 2014

5

One year follow-up of alcohol and illicit substance use in first-episode psychosis: Does gender matter?

Lange, Elisabeth Heffermehl, Nesvåg, Ragnar, Ringen, Petter Andreas, Hartberg, Cecilie Bhandari, Haukvik, Unn Kristin, Andreassen, Ole Andreas, Melle, Ingrid, Agartz, Ingrid

Journal:

Comprehensive Psychiatry

Year:

2014

Language:

english

File:

PDF, 461 KB

english, 2014

6

The development of insight and its relationship with suicidality over one year follow-up in patients with first episode psychosis

Barrett, Elizabeth A., Mork, Erlend, Færden, Ann, Nesvåg, Ragnar, Agartz, Ingrid, Andreassen, Ole A., Melle, Ingrid

Journal:

Schizophrenia Research

Year:

2015

Language:

english

File:

PDF, 271 KB

english, 2015

7

Brain-derived neurotrophic factor polymorphisms and frontal cortex morphology in schizophrenia

Varnäs, Katarina, Lawyer, Glenn, Jönsson, Erik G., Kulle, Bettina, Nesvåg, Ragnar, Hall, Håkan, Terenius, Lars, Agartz, Ingrid

Journal:

Psychiatric Genetics

Year:

2008

Language:

english

File:

PDF, 127 KB

english, 2008

8

Local and covariate-modulated false discovery rates applied in neuroimaging

Glenn Lawyer, Egil Ferkingstad, Ragnar Nesvåg, Katarina Varnäs, Ingrid Agartz

Journal:

Year:

2009

Language:

english

File:

PDF, 540 KB

english, 2009

9

Corrigendum to “Investigating possible subtypes of schizophrenia patients and controls based on brain cortical thickness” [Psychiatry Research: Neuroimaging 164 (3) (2008) 254–264]

Glenn Lawyer, Ragnar Nesvag, Katarina Varnas, Arnoldo Frigessi, Ingrid Agartz

Journal:

Psychiatry Research: Neuroimaging

Year:

2009

Language:

english

File:

PDF, 88 KB

english, 2009

10

Regional thinning of the cerebral cortex in schizophrenia: Effects of diagnosis, age and antipsychotic medication

Ragnar Nesvåg, Glenn Lawyer, Katarina Varnäs, Anders M. Fjell, Kristine B. Walhovd, Arnoldo Frigessi, Erik G. Jönsson, Ingrid Agartz

Journal:

Schizophrenia Research

Year:

2008

Language:

english

File:

PDF, 761 KB

english, 2008

11

Poster #S123 SEX DIFFERENCES IN PREVALENCE AND COMORBID SUBSTANCE USE DISORDERS AMONG PATIENTS WITH SCHIZOPHRENIA AND BIPOLAR DISORDER: A FIVE-YEAR POPULATION-BASED STUDY

Nesvåg, Ragnar, Knudsen, Gun Peggy, Bakken, Inger Johanne, Høye, Anne, Ystrøm, Eivind, Surén, Pål, Reneflot, Anne, Stoltenberg, Camilla, Reichborn-Kjennerud, Ted

Journal:

Schizophrenia Research

Year:

2014

Language:

english

File:

PDF, 87 KB

english, 2014

12

Reduced brain cortical folding in schizophrenia revealed in two independent samples

Nesvåg, Ragnar, Schaer, Marie, Haukvik, Unn K., Westlye, Lars T., Rimol, Lars M., Lange, Elisabeth H., Hartberg, Cecilie B., Ottet, Marie-Christine, Melle, Ingrid, Andreassen, Ole A., Jönsson, Erik G.

Journal:

Schizophrenia Research

Year:

2014

Language:

english

File:

PDF, 441 KB

english, 2014

13

Substance use disorders in schizophrenia, bipolar disorder, and depressive illness: a registry-based study

Nesvåg, Ragnar, Knudsen, Gun Peggy, Bakken, Inger Johanne, Høye, Anne, Ystrom, Eivind, Surén, Pål, Reneflot, Anne, Stoltenberg, Camilla, Reichborn-Kjennerud, Ted

Journal:

Social Psychiatry and Psychiatric Epidemiology

Year:

2015

Language:

english

File:

PDF, 685 KB

english, 2015

14

A history of childhood trauma is associated with slower improvement rates: Findings from a one-year follow-up study of patients with a first-episode psychosis

Aas, Monica, Andreassen, Ole A., Aminoff, Sofie R., Færden, Ann, Romm, Kristin L., Nesvåg, Ragnar, Berg, Akiah O., Simonsen, Carmen, Agartz, Ingrid, Melle, Ingrid

Journal:

Year:

2016

Language:

english

File:

PDF, 566 KB

english, 2016

15

Subcortical brain volumes relate to neurocognition in schizophrenia and bipolar disorder and healthy controls

Cecilie B. Hartberg, Kjetil Sundet, Lars M. Rimol, Unn K. Haukvik, Elisabeth H. Lange, Ragnar Nesvåg, Ingrid Melle, Ole A. Andreassen, Ingrid Agartz

Journal:

Progress in Neuro-Psychopharmacology and Biological Psychiatry

Year:

2011

Language:

english

File:

PDF, 383 KB

english, 2011

16

Investigating possible subtypes of schizophrenia patients and controls based on brain cortical thickness

Glenn Lawyer, Ragnar Nesvåg, Katarina Varnäs, Arnoldo Frigessi, Ingrid Agartz

Journal:

Psychiatry Research: Neuroimaging

Year:

2008

Language:

english

File:

PDF, 686 KB

english, 2008

17

CORTICAL FOLDING PATTERNS AND OBSTETRIC COMPLICATIONS IN SCHIZOPHRENIA

Unn Kristin Haukvik, Marie Schaer, Ragnar Nesvåg, Thomas McNeil, Cecilie B. Hartberg, Erik G. Jönsson, Stephan Eliez, Ingrid Agartz

Journal:

Schizophrenia Research

Year:

2010

Language:

english

File:

PDF, 81 KB

english, 2010

18

Effects of alcohol consumption and antipsychotic medication on brain morphology in schizophrenia

Ragnar Nesvåg, Arnoldo Frigessi, Erik G. Jönsson, Ingrid Agartz

Journal:

Schizophrenia Research

Year:

2007

Language:

english

File:

PDF, 171 KB

english, 2007

19

No effect of obstetric complications on basal ganglia volumes in schizophrenia

Unn Kristin Haukvik, Thomas McNeil, Ragnar Nesvåg, Erik Söderman, Erik Jönsson, Ingrid Agartz

Journal:

Progress in Neuro-Psychopharmacology and Biological Psychiatry

Year:

2010

Language:

english

File:

PDF, 173 KB

english, 2010

20

Cortical Volume, Surface Area, and Thickness in Schizophrenia and Bipolar Disorder

Lars M. Rimol, Ragnar Nesvåg, Don J. Hagler Jr., Ørjan Bergmann, Christine Fennema-Notestine, Cecilie B. Hartberg, Unn K. Haukvik, Elisabeth Lange, Chris J. Pung, Andres Server, Ingrid Melle, Ole A. A

Journal:

Biological Psychiatry

Year:

2012

Language:

english

File:

PDF, 1.97 MB

english, 2012

21

Therapeutic drug monitoring of patients on risperidone depot

Nesvåg, Ragnar, Tanum, Lars

Journal:

Nordic Journal of Psychiatry

Year:

2005

Language:

english

File:

PDF, 81 KB

english, 2005

22

Apathy, poor verbal memory and male gender predict lower psychosocial functioning one year after the first treatment of psychosis

Faerden, Ann, Barrett, Elizabeth Ann, Nesvåg, Ragnar, Friis, Svein, Finset, Arnstein, Marder, Stephen R., Ventura, Joseph, Andreassen, Ole A., Agartz, Ingrid, Melle, Ingrid

Journal:

Psychiatry Research

Year:

2013

Language:

english

File:

PDF, 244 KB

english, 2013

23

Apathy and Functioning in First-Episode Psychosis

Faerden, Ann, Friis, Svein, Agartz, Ingrid, Barrett, Elizabeth Ann, Nesvåg, Ragnar, Finset, Arnstein, Melle, Ingrid

Journal:

Psychiatric Services

Year:

2009

Language:

english

File:

PDF, 95 KB

english, 2009

24

Craniofacial dysmorphology and cortical thickness in men with schizophrenia

Brendan D. Kelly, Glenn Lawyer, Thomas F. McNeil, Karin M. Henriksson, Abbie Lane, Ragnar Nesvåg, Ingrid Agartz

Journal:

Schizophrenia Research

Year:

2008

Language:

english

File:

PDF, 104 KB

english, 2008

25

Cortical thickness abnormalities in bipolar disorder patients with a lifetime history of auditory hallucinations

Mørch-Johnsen, Lynn, Nerland, Stener, Jørgensen, Kjetil N, Osnes, Kåre, Hartberg, Cecilie B, Andreassen, Ole A, Melle, Ingrid, Nesvåg, Ragnar, Agartz, Ingrid

Journal:

Bipolar Disorders

Year:

2018

Language:

english

File:

PDF, 615 KB

english, 2018

26

Suicidality before and in the early phases of first episode psychosis

Elizabeth A. Barrett, Kjetil Sundet, Ann Faerden, Ragnar Nesvåg, Ingrid Agartz, Roar Fosse, Erlend Mork, Nils Eiel Steen, Ole A. Andreassen, Ingrid Melle

Journal:

Schizophrenia Research

Year:

2010

Language:

english

File:

PDF, 169 KB

english, 2010

27

Cerebellar volumes in men with schizophrenia and alcohol dependence

KATARINA VARNÄS, GAKU OKUGAWA, ANDERS HAMMARBERG, RAGNAR NESVÅG, LARS M. RIMOL, JOHAN FRANCK, INGRID AGARTZ

Journal:

Psychiatry and Clinical Neurosciences

Year:

2007

Language:

english

File:

PDF, 51 KB

english, 2007

28

Correspondence

HENRIKSSON, KARIN M., KELLY, BRENDAN D., LANE, ABBIE, AGARTZ, INGRID, NESVÅG, RAGNAR, CANTOR-GRAAE, ELIZABETH, O'CALLAGHAN, EADBHARD, McNEIL, THOMAS F.

Journal:

Psychological Medicine

Year:

2008

Language:

english

File:

PDF, 44 KB

english, 2008

29

Sex differences in mortality among patients admitted with affective disorders in North Norway: a 33-year prospective register study

Høye, Anne, Nesvåg, Ragnar, Reichborn-Kjennerud, Ted, Jacobsen, Bjarne K.

Journal:

Bipolar Disorders

Year:

2016

Language:

english

File:

PDF, 148 KB

english, 2016

30

Undiagnosed cardiovascular disease prior to cardiovascular death in individuals with severe mental illness

Heiberg, Ina H., Jacobsen, Bjarne K., Balteskard, Lise, Bramness, Jørgen G., Naess, Øyvind, Ystrom, Eivind, Reichborn-Kjennerud, Ted, Hultman, Christina M., Nesvåg, Ragnar, Høye, Anne

Journal:

Acta Psychiatrica Scandinavica

Year:

2019

Language:

english

File:

PDF, 1.09 MB

english, 2019

31

Grey and White Matter Proportional Relationships in the Cerebellar Vermis Altered in Schizophrenia

Glenn Lawyer, Ragnar Nesvåg, Katarina Varnäs, Gaku Okugawa, Ingrid Agartz

Journal:

Year:

2009

Language:

english

File:

PDF, 305 KB

english, 2009

32

Brain structure abnormalities in first-episode psychosis patients with persistent apathy

Mørch-Johnsen, Lynn, Nesvåg, Ragnar, Faerden, Ann, Haukvik, Unn K., Jørgensen, Kjetil N., Lange, Elisabeth H., Andreassen, Ole A., Melle, Ingrid, Agartz, Ingrid

Journal:

Schizophrenia Research

Year:

2015

Language:

english

File:

PDF, 373 KB

english, 2015

33

The incidence, psychiatric co-morbidity and pharmacological treatment of severe mental disorders in children and adolescents

Nesvåg, Ragnar, Bramness, Jørgen G., Handal, Marte, Hartz, Ingeborg, Hjellvik, Vidar, Skurtveit, Svetlana

Journal:

European Psychiatry

Year:

2018

Language:

english

File:

PDF, 354 KB

english, 2018

34

Assessing apathy: The use of the Apathy Evaluation Scale in first episode psychosis

Ann Faerden, Ragnar Nesvåg, Elizabeth Ann Barrett, Ingrid Agartz, Arnstein Finset, Svein Friis, Jan Ivar Rossberg, Ingrid Melle

Journal:

European Psychiatry

Year:

2008

Language:

english

File:

PDF, 177 KB

english, 2008

35

Total and cause-specific standardized mortality ratios in patients with schizophrenia and/or substance use disorder

Heiberg, Ina H., Jacobsen, Bjarne K., Nesvåg, Ragnar, Bramness, Jørgen G., Reichborn-Kjennerud, Ted, Næss, Øyvind, Ystrom, Eivind, Hultman, Christina M., Høye, Anne, Chang, Chin-Kuo

Journal:

Year:

2018

Language:

english

File:

PDF, 1.03 MB

english, 2018

36

The use of screening instruments for detecting alcohol and other drug use disorders in first-episode psychosis

Ragnar Nesvåg, Elisabeth H. Lange, Ann Færden, Elizabeth Ann Barrett, Björn Emilsson, Petter Andreas Ringen, Ole A. Andreassen, Ingrid Melle, Ingrid Agartz

Journal:

Psychiatry Research

Year:

2010

Language:

english

File:

PDF, 628 KB

english, 2010

37

A 5-year follow-up study of brain cortical and subcortical abnormalities in a schizophrenia cohort

Nesvåg, Ragnar, Bergmann, Ørjan, Rimol, Lars M., Lange, Elisabeth H., Haukvik, Unn K., Hartberg, Cecilie B., Fagerberg, Thomas, Söderman, Erik, Jönsson, Erik G., Agartz, Ingrid

Journal:

Schizophrenia Research

Year:

2012

Language:

english

File:

PDF, 728 KB

english, 2012

38

Cortical Thickness and Subcortical Volumes in Schizophrenia and Bipolar Disorder

Lars M. Rimol, Cecilie B. Hartberg, Ragnar Nesvåg, Christine Fennema-Notestine, Donald J. Hagler Jr., Chris J. Pung, Robin G. Jennings, Unn K. Haukvik, Elisabeth Lange, Per H. Nakstad, Ingrid Melle, O

Journal:

Biological Psychiatry

Year:

2010

Language:

english

File:

PDF, 743 KB

english, 2010

39

Apathy in first episode psychosis patients: One year follow up

Ann Faerden, Arnstein Finset, Svein Friis, Ingrid Agartz, Elizabeth Ann Barrett, Ragnar Nesvåg, Ole A. Andreassen, Stephen R. Marder, Ingrid Melle

Journal:

Schizophrenia Research

Year:

2010

Language:

english

File:

PDF, 184 KB

english, 2010

40

REDUCED BRAIN CORTICAL FOLDING IN SCHIZOPHRENIA

Ragnar Nesvåg, Marie Schaer, Unn K. Haukvik, Lars M. Rimol, Elisabeth H. Lange, Cecilie B. Hartberg, Erik G. Jönsson, Ingrid Melle, Ole A. Andreassen, Ingrid Agartz, Stephan Eliez

Journal:

Schizophrenia Research

Year:

2010

Language:

english

File:

PDF, 65 KB

english, 2010

41

First- and second-generation antipsychotic drug treatment and subcortical brain morphology in schizophrenia

Jørgensen, Kjetil N., Nesvåg, Ragnar, Gunleiksrud, Sindre, Raballo, Andrea, Jönsson, Erik G., Agartz, Ingrid

Journal:

European Archives of Psychiatry and Clinical Neuroscience

Year:

2016

Language:

english

File:

PDF, 504 KB

english, 2016

42

Genetic and Environmental Contributions to the Association Between Cannabis Use and Psychotic-Like Experiences in Young Adult Twins

Nesvåg, Ragnar, Reichborn-Kjennerud, Ted, Gillespie, Nathan A., Knudsen, Gun Peggy, Bramness, Jørgen G., Kendler, Kenneth S., Ystrom, Eivind

Journal:

Schizophrenia Bulletin

Year:

2016

Language:

english

File:

PDF, 392 KB

english, 2016

43

The quality of severe mental disorder diagnoses in a national health registry as compared to research diagnoses based on structured interview

Nesvåg, Ragnar, Jönsson, Erik G., Bakken, Inger Johanne, Knudsen, Gun Peggy, Bjella, Thomas D., Reichborn-Kjennerud, Ted, Melle, Ingrid, Andreassen, Ole A.

Journal:

Year:

2017

Language:

english

File:

PDF, 400 KB

english, 2017

44

The relationship between symptom severity and regional cortical and grey matter volumes in schizophrenia

Ragnar Nesvåg, Peter Saetre, Glenn Lawyer, Erik G. Jönsson, Ingrid Agartz

Journal:

Progress in Neuro-Psychopharmacology and Biological Psychiatry

Year:

2009

Language:

english

File:

PDF, 379 KB

english, 2009

45

Substance use disorders and psychotic disorders in epilepsy: A population-based registry study

Bakken, Inger Johanne, Revdal, Eline, Nesvåg, Ragnar, Brenner, Eiliv, Knudsen, Gun Peggy, Surén, Pål, Ghaderi, Sara, Gunnes, Nina, Magnus, Per, Reichborn-Kjennerud, Ted, Camilla Stoltenberg,, Trogsta

Journal:

Epilepsy Research

Year:

2014

Language:

english

File:

PDF, 591 KB

english, 2014

46

Mental disorder diagnoses among children and adolescents who use antipsychotic drugs

Nesvåg, Ragnar, Hartz, Ingeborg, Bramness, Jørgen G., Hjellvik, Vidar, Handal, Marte, Skurtveit, Svetlana

Journal:

European Neuropsychopharmacology

Year:

2016

Language:

english

File:

PDF, 435 KB

english, 2016

47

Prevalence and stability of mental disorders among young adults: findings from a longitudinal study

Gustavson, Kristin, Knudsen, Ann Kristin, Nesvåg, Ragnar, Knudsen, Gun Peggy, Vollset, Stein Emil, Reichborn-Kjennerud, Ted

Journal:

Year:

2018

Language:

english

File:

PDF, 822 KB

english, 2018

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