Publications by Trine Vik Lagerberg

119 publications found

Publications 2025

1. Engen MJ, Lagerberg TV, Høegh MC (2025)
   Editorial: The role of affect regulation in bipolar disorders
   Front Psychiatry, 16, 1659734
   DOI 10.3389/fpsyt.2025.1659734, PubMed 40859940
2. Engen MJ, Lyngstad SH, Eikenæs E, Vøllestad J, Høegh MC, Lagerberg TV, Aminoff SR (2025)
   A mixed methods pilot feasibility study of the unified protocol group psychotherapy for early bipolar disorder
   Front Psychiatry, 16, 1524243
   DOI 10.3389/fpsyt.2025.1524243, PubMed 40496824
3. Glastad SH, Klungsøyr O, Aminoff SR, Hagen R, Bjella T, Engen MJ, Lyngstad SH, Busch C, Icick R, Etain B, Melle I, Andreassen OA, Høegh MC, Lagerberg TV (2025)
   Exploring the temporal relationship between mood, alcohol- and nicotine use in bipolar disorder using time-series analyses
   Int J Bipolar Disord, 13 (1), 18
   DOI 10.1186/s40345-025-00388-5, PubMed 40407853
4. Grimstad K, Sørensen H, Vaskinn A, Mohn C, Olsen SH, Andreassen OA, Lagerberg TV, Melle I, Øie MG, Ueland T, Haatveit B (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
   Schizophr Res Cogn, 40, 100345
   DOI 10.1016/j.scog.2025.100345, PubMed 39989506
5. Høegh MC, Glastad SH, Lyngstad SH, Engen MJ, Aminoff SR, Melle I, Bjella T, Lagerberg TV (2025)
   The MinDag app for symptom monitoring and feedback to patients and clinicians during the initial treatment of bipolar disorder - a feasibility study
   Int J Bipolar Disord, 13 (1), 14
   DOI 10.1186/s40345-025-00382-x, PubMed 40178653
6. Icick R, Shadrin A, Holen B, Karadag N, Parker N, O'Connell KS, Frei O, Bahrami S, Høegh MC, Lagerberg TV, Cheng W, Seibert TM, Djurovic S, Dale AM, Zhou H, Edenberg HJ, Gelernter J, Smeland OB, Hindley G, Andreassen OA (2025)
   Identification of risk variants and cross-disorder pleiotropy through multi-ancestry genome-wide analysis of alcohol use disorder
   Nat Ment Health, 3 (2), 253-265
   DOI 10.1038/s44220-024-00353-8, PubMed 40322774
7. Ormerod MBEG, Sheikh MA, Ueland T, Hjell G, Rødevand L, Sæther LS, Lunding SH, Johansen IT, Andreou D, Ueland T, Lagerberg TV, Melle I, Djurovic S, Andreassen OA, Steen NE (2025)
   Minor immunomodulatory effects of psychotropics suggested in severe mental disorders: Associations of antipsychotics with beta defensin 2, antidepressants with C-reactive protein, and mood stabilizers with soluble interleukin 2 receptor
   Eur Psychiatry, 68 (1), e140
   DOI 10.1192/j.eurpsy.2025.10104, PubMed 40936381
8. Ormerod MBEG, Ueland T, Aas M, Hjell G, Rødevand L, Sæther LS, Lunding SH, Johansen IT, Mlakar V, Andreou D, Ueland T, Lagerberg TV, Melle I, Djurovic S, Andreassen OA, Steen NE (2025)
   Limited evidence of association between dysregulated immune marker levels and telomere length in severe mental disorders
   Acta Neuropsychiatr, 37, e4
   DOI 10.1017/neu.2024.62, PubMed 39844366

Publications 2024

1. Chrétienneau C, Spindola LM, Vorspan F, Lagerberg TV, Marie-Claire C, Bellivier F, Mouly S, Laplanche JL, Bloch V, Le Hellard S, Icick R (2024)
   An epigenetic candidate-gene association study of parental styles in suicide attempters with substance use disorders
   Addict Biol, 29 (4), e13392
   DOI 10.1111/adb.13392, PubMed 38564607
2. Johansen IT, Steen NE, Rødevand L, Lunding SH, Hjell G, Ormerod MBEG, Agartz I, Melle I, Lagerberg TV, Nerhus M, Andreassen OA (2024)
   Sex differences in autonomic adverse effects related to antipsychotic treatment and associated hormone profiles
   Schizophrenia (Heidelb), 10 (1), 6
   DOI 10.1038/s41537-023-00430-4, PubMed 38182592
3. Kreis I, Lagerberg TV, Wold KF, Åsbø G, Simonsen C, Flaaten CB, Engen MJ, Lyngstad SH, Widing LH, Ueland T, Melle I (2024)
   Behind the heterogeneity in the long-term course of first-episode psychosis: Different psychotic symptom trajectories are associated with different patterns of cannabis and stimulant use
   Schizophr Res, 271, 91-99
   DOI 10.1016/j.schres.2024.07.006, PubMed 39018985
4. Mohn C, Ueland T, Haatveit B, Sæther LS, Lagerberg TV, Andreassen OA, Melle I, Vaskinn A (2024)
   Neurocognitive function and delusion severity in schizophrenia spectrum disorders
   Schizophr Res, 270, 172-177
   DOI 10.1016/j.schres.2024.06.028, PubMed 38917554
5. Pentz AB, O'Connel KS, van Jole O, Timpe CMF, Slapø NB, Melle I, Lagerberg TV, Steen NE, Westlye LT, Haukvik UK, Moberget T, Jönsson EG, Andreassen OA, Elvsåshagen T (2024)
   Mismatch negativity and polygenic risk scores for schizophrenia and bipolar disorder
   Schizophr Res, 264, 314-326
   DOI 10.1016/j.schres.2024.01.013, PubMed 38215567
6. Wold KF, Ottesen A, Flaaten CB, Kreis I, Lagerberg TV, Romm KL, Simonsen C, Widing L, Åsbø G, Melle I (2024)
   Childhood trauma and treatment resistance in first-episode psychosis: Investigating the role of premorbid adjustment and duration of untreated psychosis
   Schizophr Res, 270, 441-450
   DOI 10.1016/j.schres.2024.07.001, PubMed 38991420

Publications 2023

1. Burdick KE, Millett CE, Yocum AK, Altimus CM, Andreassen OA, Aubin V, Belzeaux R, Berk M, Biernacka JM, Blumberg HP, Cleare AJ, Diaz-Byrd C, Dubertret C, Etain B, Eyler LT, Forester BP, Fullerton JM, Frye MA, Gard S, Godin O, Haffen E, Klaus F, Lagerberg TV, Leboyer M, Martinez-Aran A et al. (2023)
   Predictors of Functional Impairment in Bipolar Disorder: Results From 13 Cohorts From Seven Countries by the Global Bipolar Cohort Collaborative
   Focus (Am Psychiatr Publ), 21 (4), 444-452
   DOI 10.1176/appi.focus.23021021, PubMed 38694997
2. Cheng W, Parker N, Karadag N, Koch E, Hindley G, Icick R, Shadrin A, O'Connell KS, Bjella T, Bahrami S, Rahman Z, Tesfaye M, Jaholkowski P, Rødevand L, Holen B, Lagerberg TV, Steen NE, Djurovic S, Dale AM, Frei O, Smeland OB, Andreassen OA (2023)
   The relationship between cannabis use, schizophrenia, and bipolar disorder: a genetically informed study
   Lancet Psychiatry, 10 (6), 441-451
   DOI 10.1016/S2215-0366(23)00143-8, PubMed 37208114
3. Glastad SH, Aminoff SR, Hagen R, Høegh MC, Büchmann CB, Barrett EA, Melle I, Etain B, Lagerberg TV (2023)
   Nicotine use and non-pathological alcohol use and their relationship to affective symptoms and sleep disturbances in bipolar disorder
   J Affect Disord, 327, 236-243
   DOI 10.1016/j.jad.2023.02.003, PubMed 36746243
4. Hjell G, Rokicki J, Szabo A, Holst R, Tesli N, Bell C, Fischer-Vieler T, Werner MCF, Lunding SH, Ormerod MBEG, Johansen IT, Djurovic S, Ueland T, Andreassen OA, Melle I, Lagerberg TV, Mørch-Johnsen L, Steen NE, Haukvik UK (2023)
   Impulsivity across severe mental disorders: a cross-sectional study of immune markers and psychopharmacotherapy
   BMC Psychiatry, 23 (1), 659
   DOI 10.1186/s12888-023-05154-4, PubMed 37674162
5. Ihler HM, Lyngstad SH, Gardsjord ES, Widing LH, Flaaten CB, Åsbø G, Wold KF, Engen MJ, Simonsen C, Ueland T, Lagerberg TV, Melle I, Romm KL (2023)
   The trajectory of two negative symptom dimensions in first-episode psychosis and the role of cannabis use: A 10-year follow-up study
   Schizophr Res, 252, 317-325
   DOI 10.1016/j.schres.2023.01.024, PubMed 36706477
6. Ihler HM, Lyngstad SH, Mørch-Johnsen LE, Lagerberg TV, Melle I, Romm KL (2023)
   A transdiagnostic approach to negative symptoms: exploring factor structure and negative symptoms in bipolar disorders
   Front Psychiatry, 14, 1136097
   DOI 10.3389/fpsyt.2023.1136097, PubMed 37398600
7. Lunding SH, Ueland T, Aas M, Høegh MC, Werner MCF, Rødevand L, Johansen IT, Hjell G, Ormerod MBEG, Ringen PA, Ottesen A, Lagerberg TV, Melle I, Andreassen OA, Simonsen C, Steen NE (2023)
   Tobacco smoking related to childhood trauma mediated by cognitive control and impulsiveness in severe mental disorders
   Schizophr Res, 261, 236-244
   DOI 10.1016/j.schres.2023.09.041, PubMed 37806047
8. Løchen AR, Kolskår KK, de Lange AG, Sneve MH, Haatveit B, Lagerberg TV, Ueland T, Melle I, Andreassen OA, Westlye LT, Alnæs D (2023)
   Visual processing deficits in patients with schizophrenia spectrum and bipolar disorders and associations with psychotic symptoms, and intellectual abilities
   Heliyon, 9 (2), e13354
   DOI 10.1016/j.heliyon.2023.e13354, PubMed 36825178
9. Mlakar V, Birkenæs V, Elvsaashagen T, Ormerod MBEG, Quintana DS, Ueland T, Melle I, Lagerberg TV, Djurovic S, Martin-Ruiz C, Steen NE, Andreassen OA, Aas M (2023)
   Telomere length and verbal learning in bipolar disorders
   J Affect Disord, 339, 555-560
   DOI 10.1016/j.jad.2023.07.087, PubMed 37459977
10. Pentz AB, Timpe CMF, Normann EM, Slapø NB, Melle I, Lagerberg TV, Steen NE, Westlye LT, Jönsson EG, Haukvik UK, Moberget T, Andreassen OA, Elvsåshagen T (2023)
    Mismatch negativity in schizophrenia spectrum and bipolar disorders: Group and sex differences and associations with symptom severity
    Schizophr Res, 261, 80-93
    DOI 10.1016/j.schres.2023.09.012, PubMed 37716205
11. Slapø NB, Jørgensen KN, Elvsåshagen T, Nerland S, Roelfs D, Valstad M, Timpe CMF, Richard G, Beck D, Sæther LS, Frogner Werner MC, Lagerberg TV, Andreassen OA, Melle I, Agartz I, Westlye LT, Moberget T, Jönsson EG (2023)
    Relationship between function and structure in the visual cortex in healthy individuals and in patients with severe mental disorders
    Psychiatry Res Neuroimaging, 332, 111633
    DOI 10.1016/j.pscychresns.2023.111633, PubMed 37028226
12. Slapø NB, Nerland S, Nordbø Jørgensen K, Mørch-Johnsen L, Pettersen JH, Roelfs D, Parker N, Valstad M, Pentz A, Timpe CMF, Richard G, Beck D, Werner MCF, Lagerberg TV, Melle I, Agartz I, Westlye LT, Steen NE, Andreassen OA, Moberget T, Elvsåshagen T, Jönsson EG (2023)
    Auditory Cortex Thickness Is Associated With N100 Amplitude in Schizophrenia Spectrum Disorders
    Schizophr Bull Open, 4 (1), sgad015
    DOI 10.1093/schizbullopen/sgad015, PubMed 38812720
13. Wold KF, Ottesen A, Camilla BF, Johnsen E, Lagerberg TV, Romm KL, Simonsen C, Ueland T, Widing L, Åsbø G, Melle I (2023)
    Early identification of treatment non-response in first-episode psychosis
    Eur Psychiatry, 66 (1), e30
    DOI 10.1192/j.eurpsy.2023.15, PubMed 36915260

Publications 2022

1. Aminoff SR, Mork E, Barrett EA, Simonsen C, Ten Velden Hegelstad W, Lagerberg TV, Melle I, Romm KL (2022)
   Locked out during COVID-19 lockdown-an online survey of relatives of people with psychotic and bipolar disorders in Norway
   BMC Public Health, 22 (1), 294
   DOI 10.1186/s12889-022-12625-y, PubMed 35151293
2. Aminoff SR, Onyeka IN, Ødegaard M, Simonsen C, Lagerberg TV, Andreassen OA, Romm KL, Melle I (2022)
   Lifetime and point prevalence of psychotic symptoms in adults with bipolar disorders: a systematic review and meta-analysis
   Psychol Med, 52 (13), 2413-2425
   DOI 10.1017/S003329172200201X, PubMed 36016504
3. Barrett EA, Simonsen C, Aminoff SR, Hegelstad WTV, Lagerberg TV, Melle I, Mork E, Romm KL (2022)
   The COVID-19 pandemic impact on wellbeing and mental health in people with psychotic and bipolar disorders
   Brain Behav, 12 (5), e2559
   DOI 10.1002/brb3.2559, PubMed 35385888
4. Bjella TD, Collier Høegh M, Holmstul Olsen S, Aminoff SR, Barrett E, Ueland T, Icick R, Andreassen OA, Nerhus M, Myhre Ihler H, Hagen M, Busch-Christensen C, Melle I, Lagerberg TV (2022)
   Developing "MinDag" - an app to capture symptom variation and illness mechanisms in bipolar disorder
   Front Med Technol, 4, 910533
   DOI 10.3389/fmedt.2022.910533, PubMed 35935144
5. Burdick KE, Millett CE, Yocum AK, Altimus CM, Andreassen OA, Aubin V, Belzeaux R, Berk M, Biernacka JM, Blumberg HP, Cleare AJ, Diaz-Byrd C, Dubertret C, Etain B, Eyler LT, Forester BP, Fullerton JM, Frye MA, Gard S, Godin O, Haffen E, Klaus F, Lagerberg TV, Leboyer M, Martinez-Aran A et al. (2022)
   Predictors of functional impairment in bipolar disorder: Results from 13 cohorts from seven countries by the global bipolar cohort collaborative
   Bipolar Disord, 24 (7), 709-719
   DOI 10.1111/bdi.13208, PubMed 35322518
6. Elkjaer Greenwood Ormerod MB, Ueland T, Frogner Werner MC, Hjell G, Rødevand L, Sæther LS, Lunding SH, Johansen IT, Ueland T, Lagerberg TV, Melle I, Djurovic S, Andreassen OA, Steen NE (2022)
   Composite immune marker scores associated with severe mental disorders and illness course
   Brain Behav Immun Health, 24, 100483
   DOI 10.1016/j.bbih.2022.100483, PubMed 35856063
7. Engh JA, Ueland T, Agartz I, Andreou D, Aukrust P, Boye B, Bøen E, Drange OK, Elvsåshagen T, Hope S, Høegh MC, Joa I, Johnsen E, Kroken RA, Lagerberg TV, Lekva T, Malt UF, Melle I, Morken G, Nærland T, Steen VM, Wedervang-Resell K, Weibell MA, Westlye LT, Djurovic S et al. (2022)
   Plasma Levels of the Cytokines B Cell-Activating Factor (BAFF) and A Proliferation-Inducing Ligand (APRIL) in Schizophrenia, Bipolar, and Major Depressive Disorder: A Cross Sectional, Multisite Study
   Schizophr Bull, 48 (1), 37-46
   DOI 10.1093/schbul/sbab106, PubMed 34499169
8. Hindley G, O'Connell KS, Rahman Z, Frei O, Bahrami S, Shadrin A, Høegh MC, Cheng W, Karadag N, Lin A, Rødevand L, Fan CC, Djurovic S, Lagerberg TV, Dale AM, Smeland OB, Andreassen OA (2022)
   The shared genetic basis of mood instability and psychiatric disorders: A cross-trait genome-wide association analysis
   Am J Med Genet B Neuropsychiatr Genet, 189 (6), 207-218
   DOI 10.1002/ajmg.b.32907, PubMed 35841185
9. Høegh MC, Melle I, Aminoff SR, Olsen SH, Lunding SH, Ueland T, Lagerberg TV (2022)
   Affective lability and social functioning in severe mental disorders
   Eur Arch Psychiatry Clin Neurosci, 272 (5), 873-885
   DOI 10.1007/s00406-022-01380-1, PubMed 35084540
10. Icick R, Melle I, Etain B, Høegh MC, Gard S, Aminoff SR, Leboyer M, Andreassen OA, Belzeaux R, Henry C, Bjella TD, Kahn JP, Steen NE, Bellivier F, Lagerberg TV (2022)
    Preventive Medication Patterns in Bipolar Disorder and Their Relationship With Comorbid Substance Use Disorders in a Cross-National Observational Study
    Front Psychiatry, 13, 813256
    DOI 10.3389/fpsyt.2022.813256, PubMed 35592382
11. Icick R, Shadrin A, Holen B, Karadag N, Lin A, Hindley G, O'Connell K, Frei O, Bahrami S, Høegh MC, Cheng W, Fan CC, Djurovic S, Dale AM, Lagerberg TV, Smeland OB, Andreassen OA (2022)
    Genetic overlap between mood instability and alcohol-related phenotypes suggests shared biological underpinnings
    Neuropsychopharmacology, 47 (11), 1883-1891
    DOI 10.1038/s41386-022-01401-6, PubMed 35953530
12. Johansen IT, Steen NE, Haram M, Rødevand L, Werner MCF, Lunding SH, Hjell G, Agartz I, Melle I, Lagerberg TV, Nerhus M, Andreassen OA (2022)
    Sex differences in antipsychotic-related triglyceride levels are associated with metabolic hormone differences in patients with severe mental disorders
    Schizophr Res, 243, 55-63
    DOI 10.1016/j.schres.2022.02.015, PubMed 35240428
13. Johansen IT, Steen NE, Rødevand L, Werner MCF, Lunding SH, Hjell G, Ormerod MBEG, Agartz I, Melle I, Lagerberg TV, Nerhus M, Andreassen OA (2022)
    Sex-specific associations between metabolic hormones, severe mental disorders and antipsychotic treatment
    Psychoneuroendocrinology, 146, 105927
    DOI 10.1016/j.psyneuen.2022.105927, PubMed 36152455
14. Mork E, Aminoff SR, Barrett EA, Simonsen C, Hegelstad WTV, Lagerberg TV, Melle I, Romm KL (2022)
    COVID-19 lockdown - who cares? The first lockdown from the perspective of relatives of people with severe mental illness
    BMC Public Health, 22 (1), 1104
    DOI 10.1186/s12889-022-13458-5, PubMed 35655294
15. Sheikh MA, O'Connell KS, Lekva T, Szabo A, Akkouh IA, Osete JR, Agartz I, Engh JA, Andreou D, Boye B, Bøen E, Elvsåshagen T, Hope S, Frogner Werner MC, Joa I, Johnsen E, Kroken RA, Lagerberg TV, Melle I, Drange OK, Morken G, Nærland T, Sørensen K, Vaaler AE, Weibell MA et al. (2022)
    Systemic Cell Adhesion Molecules in Severe Mental Illness: Potential Role of Intercellular CAM-1 in Linking Peripheral and Neuroinflammation
    Biol Psychiatry, 93 (2), 187-196
    DOI 10.1016/j.biopsych.2022.06.029, PubMed 36182530
16. Sæther LS, Ueland T, Haatveit B, Maglanoc LA, Szabo A, Djurovic S, Aukrust P, Roelfs D, Mohn C, Ormerod MBEG, Lagerberg TV, Steen NE, Melle I, Andreassen OA, Ueland T (2022)
    Inflammation and cognition in severe mental illness: patterns of covariation and subgroups
    Mol Psychiatry, 28 (3), 1284-1292
    DOI 10.1038/s41380-022-01924-w, PubMed 36577840
17. Aas M, Ueland T, Lagerberg TV, Melle I, Aminoff SR, Hoegh MC, Lunding SH, Laskemoen JF, Steen NE, Andreassen OA (2022)
    Retrospectively assessed childhood trauma experiences are associated with illness severity in mental disorders adjusted for symptom state
    Psychiatry Res, 320, 115045
    DOI 10.1016/j.psychres.2022.115045, PubMed 36621206

Publications 2021

1. Gjerde PB, Simonsen CE, Lagerberg TV, Steen NE, Andreassen OA, Steen VM, Melle I (2021)
   Sex-Specific Effect of Serum Lipids and Body Mass Index on Psychotic Symptoms, a Cross-Sectional Study of First-Episode Psychosis Patients
   Front Psychiatry, 12, 723158
   DOI 10.3389/fpsyt.2021.723158, PubMed 34744818
2. Høegh MC, Melle I, Aminoff SR, Haatveit B, Olsen SH, Huflåtten IB, Ueland T, Lagerberg TV (2021)
   Characterization of affective lability across subgroups of psychosis spectrum disorders
   Int J Bipolar Disord, 9 (1), 34
   DOI 10.1186/s40345-021-00238-0, PubMed 34734342
3. Ihler HM, Lagerberg TV, Lyngstad SH, Melle I, Romm KL (2021)
   Exploring the relationship between recency and frequency of cannabis use and diminished expression and apathy as two dimensions of negative symptoms in first episode psychosis. A one-year follow-up study
   Schizophr Res, 236, 89-96
   DOI 10.1016/j.schres.2021.08.004, PubMed 34454305
4. Kalman JL, Olde Loohuis LM, Vreeker A, McQuillin A, Stahl EA, Ruderfer D, Grigoroiu-Serbanescu M, Panagiotaropoulou G, Ripke S, Bigdeli TB, Stein F, Meller T, Meinert S, Pelin H, Streit F, Papiol S, Adams MJ, Adolfsson R, Adorjan K, Agartz I, Aminoff SR, Anderson-Schmidt H, Andreassen OA, Ardau R, Aubry JM et al. (2021)
   Characterisation of age and polarity at onset in bipolar disorder
   Br J Psychiatry, 219 (6), 659-669
   DOI 10.1192/bjp.2021.102, PubMed 35048876
5. Kessing LV, González-Pinto A, Fagiolini A, Bechdolf A, Reif A, Yildiz A, Etain B, Henry C, Severus E, Reininghaus EZ, Morken G, Goodwin GM, Scott J, Geddes JR, Rietschel M, Landén M, Manchia M, Bauer M, Martinez-Cengotitabengoa M, Andreassen OA, Ritter P, Kupka R, Licht RW, Nielsen RE, Schulze TG et al. (2021)
   DSM-5 and ICD-11 criteria for bipolar disorder: Implications for the prevalence of bipolar disorder and validity of the diagnosis - A narrative review from the ECNP bipolar disorders network
   Eur Neuropsychopharmacol, 47, 54-61
   DOI 10.1016/j.euroneuro.2021.01.097, PubMed 33541809
6. Lagerberg TV, Icick R, Aminoff SR, Nerhus M, Barrett EA, Bjella TD, Olsen SH, Høegh MC, Melle I (2021)
   Substance Misuse Trajectories and Risk of Relapse in the Early Course of Bipolar Disorder
   Front Psychiatry, 12, 656912
   DOI 10.3389/fpsyt.2021.656912, PubMed 34017275
7. Lunding SH, Simonsen C, Aas M, Rødevand L, Werner MCF, Laskemoen JF, Hjell G, Ringen PA, Lagerberg TV, Melle I, Andreassen OA, Ueland T, Steen NE (2021)
   Childhood trauma and cardiometabolic risk in severe mental disorders: The mediating role of cognitive control
   Eur Psychiatry, 64 (1), e24
   DOI 10.1192/j.eurpsy.2021.14, PubMed 33775258
8. Manchia M, Vieta E, Smeland OB, Altimus C, Bechdolf A, Bellivier F, Bergink V, Fagiolini A, Geddes JR, Hajek T, Henry C, Kupka R, Lagerberg TV, Licht RW, Martinez-Cengotitabengoa M, Morken G, Nielsen RE, González-Pinto A, Reif A, Rietschel M, Ritter P, Schulze TG, Scott J, Severus E, Yildiz A et al. (2021)
   Corrigendum to "Translating big data to better treatment in bipolar disorder - a manifesto for coordinated action [European Neuropsychopharmacology (2020) 36, 121-136]"
   Eur Neuropsychopharmacol, 44, 121-122
   DOI 10.1016/j.euroneuro.2021.01.001, PubMed 33495109
9. O'Connell KS, Frei O, Bahrami S, Smeland OB, Bettella F, Cheng W, Chu Y, Hindley G, Lin A, Shadrin A, Barrett EA, Lagerberg TV, Steen NE, Dale AM, Djurovic S, Andreassen OA (2021)
   Characterizing the Genetic Overlap Between Psychiatric Disorders and Sleep-Related Phenotypes
   Biol Psychiatry, 90 (9), 621-631
   DOI 10.1016/j.biopsych.2021.07.007, PubMed 34482950
10. Reininghaus EZ, Manchia M, Dalkner N, Bonkat N, Squassina A, Hodl I, Vieta E, Reif A, Hajek T, Landén M, Correll CU, Scott J, Etain B, Rietschel M, Bergink V, Martinez-Cengotitabengoa M, Kessing LV, Fagiolini A, Bauer M, Goodwin G, Gonzalez-Pinto A, Kupka RW, Schulze TG, Lagerberg TV, Yildiz A et al. (2021)
    Outcomes associated with different vaccines in individuals with bipolar disorder and impact on the current COVID-19 pandemic- a systematic review
    Eur Neuropsychopharmacol, 54, 90-99
    DOI 10.1016/j.euroneuro.2021.09.001, PubMed 34607722
11. Rødevand L, Bahrami S, Frei O, Chu Y, Shadrin A, O'Connell KS, Smeland OB, Elvsåshagen T, Hindley GFL, Djurovic S, Dale AM, Lagerberg TV, Steen NE, Andreassen OA (2021)
    Extensive bidirectional genetic overlap between bipolar disorder and cardiovascular disease phenotypes
    Transl Psychiatry, 11 (1), 407
    DOI 10.1038/s41398-021-01527-z, PubMed 34301917
12. Rødevand L, Bahrami S, Frei O, Lin A, Gani O, Shadrin A, Smeland OB, Connell KSO, Elvsåshagen T, Winterton A, Quintana DS, Hindley GFL, Werner MCF, Djurovic S, Dale AM, Lagerberg TV, Steen NE, Andreassen OA (2021)
    Polygenic overlap and shared genetic loci between loneliness, severe mental disorders, and cardiovascular disease risk factors suggest shared molecular mechanisms
    Transl Psychiatry, 11 (1), 3
    DOI 10.1038/s41398-020-01142-4, PubMed 33414458
13. Valstad M, Roelfs D, Slapø NB, Timpe CMF, Rai A, Matziorinis AM, Beck D, Richard G, Sæther LS, Haatveit B, Nordvik JE, Hatlestad-Hall C, Einevoll GT, Mäki-Marttunen T, Haram M, Ueland T, Lagerberg TV, Steen NE, Melle I, Westlye LT, Jönsson EG, Andreassen OA, Moberget T, Elvsåshagen T (2021)
    Evidence for Reduced Long-Term Potentiation-Like Visual Cortical Plasticity in Schizophrenia and Bipolar Disorder
    Schizophr Bull, 47 (6), 1751-1760
    DOI 10.1093/schbul/sbab049, PubMed 33963856

Publications 2020

1. Benjamin BR, Valstad M, Elvsåshagen T, Jönsson EG, Moberget T, Winterton A, Haram M, Høegh MC, Lagerberg TV, Steen NE, Larsen L, Andreassen OA, Westlye LT, Quintana DS (2020)
   Heart rate variability is associated with disease severity in psychosis spectrum disorders
   Prog Neuropsychopharmacol Biol Psychiatry, 111, 110108
   DOI 10.1016/j.pnpbp.2020.110108, PubMed 32946948
2. Elvsåshagen T, Bahrami S, van der Meer D, Agartz I, Alnæs D, Barch DM, Baur-Streubel R, Bertolino A, Beyer MK, Blasi G, Borgwardt S, Boye B, Buitelaar J, Bøen E, Celius EG, Cervenka S, Conzelmann A, Coynel D, Di Carlo P, Djurovic S, Eisenacher S, Espeseth T, Fatouros-Bergman H, Flyckt L, Franke B et al. (2020)
   The genetic architecture of human brainstem structures and their involvement in common brain disorders
   Nat Commun, 11 (1), 4016
   DOI 10.1038/s41467-020-17376-1, PubMed 32782260
3. Engen MJ, Lyngstad SH, Ueland T, Simonsen CE, Vaskinn A, Smeland O, Bettella F, Lagerberg TV, Djurovic S, Andreassen OA, Melle I (2020)
   Polygenic scores for schizophrenia and general cognitive ability: associations with six cognitive domains, premorbid intelligence, and cognitive composite score in individuals with a psychotic disorder and in healthy controls
   Transl Psychiatry, 10 (1), 416
   DOI 10.1038/s41398-020-01094-9, PubMed 33257657
4. Haukvik UK, Gurholt TP, Nerland S, Elvsåshagen T, Akudjedu TN, Alda M, Alnaes D, Alonso-Lana S, Bauer J, Baune BT, Benedetti F, Berk M, Bettella F, Bøen E, Bonnín CM, Brambilla P, Canales-Rodríguez EJ, Cannon DM, Caseras X, Dandash O, Dannlowski U, Delvecchio G, Díaz-Zuluaga AM, van Erp TGM, Fatjó-Vilas M et al. (2020)
   In vivo hippocampal subfield volumes in bipolar disorder-A mega-analysis from The Enhancing Neuro Imaging Genetics through Meta-Analysis Bipolar Disorder Working Group
   Hum Brain Mapp, 43 (1), 385-398
   DOI 10.1002/hbm.25249, PubMed 33073925
5. Hjell G, Mørch-Johnsen L, Holst R, Tesli N, Bell C, Lunding SH, Rødevand L, Werner MCF, Melle I, Andreassen OA, Lagerberg TV, Steen NE, Haukvik UK (2020)
   Disentangling the relationship between cholesterol, aggression, and impulsivity in severe mental disorders
   Brain Behav, 10 (9), e01751
   DOI 10.1002/brb3.1751, PubMed 32681586
6. Høegh MC, Melle I, Aminoff SR, Laskemoen JF, Büchmann CB, Ueland T, Lagerberg TV (2020)
   Affective lability across psychosis spectrum disorders
   Eur Psychiatry, 63 (1), e53
   DOI 10.1192/j.eurpsy.2020.44, PubMed 32372737
7. Ihler HM, Meyrel M, Hennion V, Maruani J, Gross G, Geoffroy PA, Lagerberg TV, Melle I, Bellivier F, Scott J, Etain B (2020)
   Misperception of sleep in bipolar disorder: an exploratory study using questionnaire versus actigraphy
   Int J Bipolar Disord, 8 (1), 34
   DOI 10.1186/s40345-020-00198-x, PubMed 33215273
8. Manchia M, Vieta E, Smeland OB, Altimus C, Bechdolf A, Bellivier F, Bergink V, Fagiolini A, Geddes JR, Hajek T, Henry C, Kupka R, Lagerberg TV, Licht RW, Martinez-Cengotitabengoa M, Morken G, Nielsen RE, Pinto AG, Reif A, Rietschel M, Ritter P, Schulze TG, Scott J, Severus E, Yildiz A et al. (2020)
   Translating big data to better treatment in bipolar disorder - a manifesto for coordinated action
   Eur Neuropsychopharmacol, 36, 121-136
   DOI 10.1016/j.euroneuro.2020.05.006, PubMed 32536571
9. Szabo A, Akkouh IA, Ueland T, Lagerberg TV, Dieset I, Bjella T, Aukrust P, Le Hellard S, Stavrum AK, Melle I, Andreassen OA, Djurovic S (2020)
   Cannabis Use Is Associated With Increased Levels of Soluble gp130 in Schizophrenia but Not in Bipolar Disorder
   Front Psychiatry, 11, 642
   DOI 10.3389/fpsyt.2020.00642, PubMed 32714224
10. Tønnesen S, Kaufmann T, de Lange AG, Richard G, Doan NT, Alnæs D, van der Meer D, Rokicki J, Moberget T, Maximov II, Agartz I, Aminoff SR, Beck D, Barch DM, Beresniewicz J, Cervenka S, Fatouros-Bergman H, Craven AR, Flyckt L, Gurholt TP, Haukvik UK, Hugdahl K, Johnsen E, Jönsson EG, Karolinska Schizophrenia Project et al. (2020)
    Brain Age Prediction Reveals Aberrant Brain White Matter in Schizophrenia and Bipolar Disorder: A Multisample Diffusion Tensor Imaging Study
    Biol Psychiatry Cogn Neurosci Neuroimaging, 5 (12), 1095-1103
    DOI 10.1016/j.bpsc.2020.06.014, PubMed 32859549

Publications 2019

1. Favre P, Pauling M, Stout J, Hozer F, Sarrazin S, Abé C, Alda M, Alloza C, Alonso-Lana S, Andreassen OA, Baune BT, Benedetti F, Busatto GF, Canales-Rodríguez EJ, Caseras X, Chaim-Avancini TM, Ching CRK, Dannlowski U, Deppe M, Eyler LT, Fatjo-Vilas M, Foley SF, Grotegerd D, Hajek T, Haukvik UK et al. (2019)
   Widespread white matter microstructural abnormalities in bipolar disorder: evidence from mega- and meta-analyses across 3033 individuals
   Neuropsychopharmacology, 44 (13), 2285-2293
   DOI 10.1038/s41386-019-0485-6, PubMed 31434102
2. Favre P, Pauling M, Stout J, Hozer F, Sarrazin S, Abé C, Alda M, Alloza C, Alonso-Lana S, Andreassen OA, Baune BT, Benedetti F, Busatto GF, Canales-Rodríguez EJ, Caseras X, Chaim-Avancini TM, Ching CRK, Dannlowski U, Deppe M, Eyler LT, Fatjo-Vilas M, Foley SF, Grotegerd D, Hajek T, Haukvik UK et al. (2019)
   Correction: Widespread white matter microstructural abnormalities in bipolar disorder: evidence from mega- and meta-analyses across 3033 individuals
   Neuropsychopharmacology, 44 (13), 2298
   DOI 10.1038/s41386-019-0521-6, PubMed 31527792
3. Gjerde PB, Simonsen CE, Lagerberg TV, Steen NE, Ueland T, Andreassen OA, Steen VM, Melle I (2019)
   Improvement in verbal learning over the first year of antipsychotic treatment is associated with serum HDL levels in a cohort of first episode psychosis patients
   Eur Arch Psychiatry Clin Neurosci, 270 (1), 49-58
   DOI 10.1007/s00406-019-01017-w, PubMed 31028479
4. Icick R, Melle I, Etain B, Ringen PA, Aminoff SR, Leboyer M, Aas M, Henry C, Bjella TD, Andreassen OA, Bellivier F, Lagerberg TV (2019)
   Tobacco smoking and other substance use disorders associated with recurrent suicide attempts in bipolar disorder
   J Affect Disord, 256, 348-357
   DOI 10.1016/j.jad.2019.05.075, PubMed 31202989
5. Jiang W, Andreassen OA, Agartz I, Lagerberg TV, Westlye LT, Calhoun VD, Turner JA (2019)
   Distinct structural brain circuits indicate mood and apathy profiles in bipolar disorder
   Neuroimage Clin, 26, 101989
   DOI 10.1016/j.nicl.2019.101989, PubMed 31451406
6. Laskemoen JF, Simonsen C, Büchmann C, Barrett EA, Bjella T, Lagerberg TV, Vedal TJ, Andreassen OA, Melle I, Aas M (2019)
   Sleep disturbances in schizophrenia spectrum and bipolar disorders - a transdiagnostic perspective
   Compr Psychiatry, 91, 6-12
   DOI 10.1016/j.comppsych.2019.02.006, PubMed 30856497
7. Rødevand L, Steen NE, Elvsåshagen T, Quintana DS, Reponen EJ, Mørch RH, Lunding SH, Vedal TSJ, Dieset I, Melle I, Lagerberg TV, Andreassen OA (2019)
   Cardiovascular risk remains high in schizophrenia with modest improvements in bipolar disorder during past decade
   Acta Psychiatr Scand, 139 (4), 348-360
   DOI 10.1111/acps.13008, PubMed 30697685
8. Scott J, Hidalgo-Mazzei D, Strawbridge R, Young A, Resche-Rigon M, Etain B, Andreassen OA, Bauer M, Bennabi D, Blamire AM, Boumezbeur F, Brambilla P, Cattane N, Cattaneo A, Chupin M, Coello K, Cointepas Y, Colom F, Cousins DA, Dubertret C, Duchesnay E, Ferro A, Garcia-Estela A, Goikolea J, Grigis A et al. (2019)
   Prospective cohort study of early biosignatures of response to lithium in bipolar-I-disorders: overview of the H2020-funded R-LiNK initiative
   Int J Bipolar Disord, 7 (1), 20
   DOI 10.1186/s40345-019-0156-x, PubMed 31552554
9. Aas M, Bellivier F, Bettella F, Henry C, Gard S, Kahn JP, Lagerberg TV, Aminoff SR, Melle I, Leboyer M, Jamain S, Andreassen OA, Etain B (2019)
   Childhood maltreatment and polygenic risk in bipolar disorders
   Bipolar Disord, 22 (2), 174-181
   DOI 10.1111/bdi.12851, PubMed 31628696

Publications 2018

1. Büchmann CB, Pedersen G, Aminoff SR, Laskemoen JF, Barrett EA, Melle I, Lagerberg TV (2018)
   Validity of the Birchwood insight scale in patients with schizophrenia spectrum- and bipolar disorders
   Psychiatry Res, 272, 715-722
   DOI 10.1016/j.psychres.2018.12.072, PubMed 30832191
2. Nunes A, Schnack HG, Ching CRK, Agartz I, Akudjedu TN, Alda M, Alnæs D, Alonso-Lana S, Bauer J, Baune BT, Bøen E, Bonnin CDM, Busatto GF, Canales-Rodríguez EJ, Cannon DM, Caseras X, Chaim-Avancini TM, Dannlowski U, Díaz-Zuluaga AM, Dietsche B, Doan NT, Duchesnay E, Elvsåshagen T, Emden D, Eyler LT et al. (2018)
   Using structural MRI to identify bipolar disorders - 13 site machine learning study in 3020 individuals from the ENIGMA Bipolar Disorders Working Group
   Mol Psychiatry, 25 (9), 2130-2143
   DOI 10.1038/s41380-018-0228-9, PubMed 30171211
3. Tønnesen S, Kaufmann T, Doan NT, Alnæs D, Córdova-Palomera A, Meer DV, Rokicki J, Moberget T, Gurholt TP, Haukvik UK, Ueland T, Lagerberg TV, Agartz I, Andreassen OA, Westlye LT (2018)
   White matter aberrations and age-related trajectories in patients with schizophrenia and bipolar disorder revealed by diffusion tensor imaging
   Sci Rep, 8 (1), 14129
   DOI 10.1038/s41598-018-32355-9, PubMed 30237410
4. van Erp TGM, Walton E, Hibar DP, Schmaal L, Jiang W, Glahn DC, Pearlson GD, Yao N, Fukunaga M, Hashimoto R, Okada N, Yamamori H, Bustillo JR, Clark VP, Agartz I, Mueller BA, Cahn W, de Zwarte SMC, Hulshoff Pol HE, Kahn RS, Ophoff RA, van Haren NEM, Andreassen OA, Dale AM, Doan NT et al. (2018)
   Cortical Brain Abnormalities in 4474 Individuals With Schizophrenia and 5098 Control Subjects via the Enhancing Neuro Imaging Genetics Through Meta Analysis (ENIGMA) Consortium
   Biol Psychiatry, 84 (9), 644-654
   DOI 10.1016/j.biopsych.2018.04.023, PubMed 29960671

Publications 2017

1. Demmo C, Lagerberg TV, Kvitland LR, Aminoff SR, Hellvin T, Simonsen C, Haatveit B, Andreassen OA, Melle I, Ueland T (2017)
   Neurocognitive functioning, clinical course and functional outcome in first-treatment bipolar I disorder patients with and without clinical relapse: A 1-year follow-up study
   Bipolar Disord, 20 (3), 228-237
   DOI 10.1111/bdi.12569, PubMed 29121444
2. Gjerde PB, Dieset I, Simonsen C, Hoseth EZ, Iversen T, Lagerberg TV, Lyngstad SH, Mørch RH, Skrede S, Andreassen OA, Melle I, Steen VM (2017)
   Increase in serum HDL level is associated with less negative symptoms after one year of antipsychotic treatment in first-episode psychosis
   Schizophr Res, 197, 253-260
   DOI 10.1016/j.schres.2017.10.042, PubMed 29129510
3. Hartberg CB, Lange EH, Lagerberg TV, Haukvik UK, Andreassen OA, Melle I, Agartz I (2017)
   Cortical thickness, cortical surface area and subcortical volumes in schizophrenia and bipolar disorder patients with cannabis use
   Eur Neuropsychopharmacol, 28 (1), 37-47
   DOI 10.1016/j.euroneuro.2017.11.019, PubMed 29254657
4. Moberget T, Doan NT, Alnæs D, Kaufmann T, Córdova-Palomera A, Lagerberg TV, Diedrichsen J, Schwarz E, Zink M, Eisenacher S, Kirsch P, Jönsson EG, Fatouros-Bergman H, Flyckt L, KaSP, Pergola G, Quarto T, Bertolino A, Barch D, Meyer-Lindenberg A, Agartz I, Andreassen OA, Westlye LT (2017)
   Cerebellar volume and cerebellocerebral structural covariance in schizophrenia: a multisite mega-analysis of 983 patients and 1349 healthy controls
   Mol Psychiatry, 23 (6), 1512-1520
   DOI 10.1038/mp.2017.106, PubMed 28507318
5. Vaskinn A, Lagerberg TV, Bjella TD, Simonsen C, Andreassen OA, Ueland T, Sundet K (2017)
   Impairment in emotion perception from body movements in individuals with bipolar I and bipolar II disorder is associated with functional capacity
   Int J Bipolar Disord, 5 (1), 13
   DOI 10.1186/s40345-017-0083-7, PubMed 28332121
6. Aas M, Melle I, Bettella F, Djurovic S, Le Hellard S, Bjella T, Ringen PA, Lagerberg TV, Smeland OB, Agartz I, Andreassen OA, Tesli M (2017)
   Psychotic patients who used cannabis frequently before illness onset have higher genetic predisposition to schizophrenia than those who did not
   Psychol Med, 48 (1), 43-49
   DOI 10.1017/S0033291717001209, PubMed 28967348

Publications 2016

1. Demmo C, Lagerberg TV, Aminoff SR, Hellvin T, Kvitland LR, Simonsen C, Andreassen OA, Melle I, Ueland T (2016)
   History of psychosis and previous episodes as potential explanatory factors for neurocognitive impairment in first-treatment bipolar I disorder
   Bipolar Disord, 18 (2), 136-47
   DOI 10.1111/bdi.12377, PubMed 26990158
2. Demmo C, Lagerberg TV, Aminoff SR, Hellvin T, Kvitland LR, Simonsen C, Haatveit B, Andreassen OA, Melle I, Ueland T (2016)
   Course of neurocognitive function in first treatment bipolar I disorder: One-year follow-up study
   Psychiatry Res, 249, 286-292
   DOI 10.1016/j.psychres.2016.12.048, PubMed 28142102
3. Kaufmann T, Alnæs D, Brandt CL, Doan NT, Kauppi K, Bettella F, Lagerberg TV, Berg AO, Djurovic S, Agartz I, Melle IS, Ueland T, Andreassen OA, Westlye LT (2016)
   Task modulations and clinical manifestations in the brain functional connectome in 1615 fMRI datasets
   Neuroimage, 147, 243-252
   DOI 10.1016/j.neuroimage.2016.11.073, PubMed 27916665
4. Kvitland LR, Ringen PA, Aminoff SR, Demmo C, Hellvin T, Lagerberg TV, Andreassen OA, Melle I (2016)
   Duration of untreated illness in first-treatment bipolar I disorder in relation to clinical outcome and cannabis use
   Psychiatry Res, 246, 762-768
   DOI 10.1016/j.psychres.2016.07.064, PubMed 27814886
5. Lagerberg TV, Aminoff SR, Aas M, Bjella T, Henry C, Leboyer M, Pedersen G, Bellivier F, Icick R, Andreassen OA, Etain B, Melle I (2016)
   Alcohol use disorders are associated with increased affective lability in bipolar disorder
   J Affect Disord, 208, 316-324
   DOI 10.1016/j.jad.2016.09.062, PubMed 27810713
6. Ringen PA, Nesvåg R, Helle S, Lagerberg TV, Lange EH, Løberg EM, Agartz I, Andreassen OA, Melle I (2016)
   Premorbid cannabis use is associated with more symptoms and poorer functioning in schizophrenia spectrum disorder
   Psychol Med, 46 (15), 3127-3136
   DOI 10.1017/S0033291716001999, PubMed 27534999
7. Tesli M, Wirgenes KV, Hughes T, Bettella F, Athanasiu L, Hoseth ES, Nerhus M, Lagerberg TV, Steen NE, Agartz I, Melle I, Dieset I, Djurovic S, Andreassen OA (2016)
   VRK2 gene expression in schizophrenia, bipolar disorder and healthy controls
   Br J Psychiatry, 209 (2), 114-20
   DOI 10.1192/bjp.bp.115.161950, PubMed 26941264
8. Østefjells T, Melle I, Aminoff SR, Hellvin T, Hagen R, Lagerberg TV, Lystad JU, Røssberg JI (2016)
   An exploration of metacognitive beliefs and thought control strategies in bipolar disorder
   Compr Psychiatry, 73, 84-92
   DOI 10.1016/j.comppsych.2016.11.008, PubMed 27918949
9. Aas M, Henry C, Bellivier F, Lajnef M, Gard S, Kahn JP, Lagerberg TV, Aminoff SR, Bjella T, Leboyer M, Andreassen OA, Melle I, Etain B (2016)
   Affective lability mediates the association between childhood trauma and suicide attempts, mixed episodes and co-morbid anxiety disorders in bipolar disorders
   Psychol Med, 47 (5), 902-912
   DOI 10.1017/S0033291716003081, PubMed 27894372

Publications 2015

1. Aminoff SR, Tesli M, Bettella F, Aas M, Lagerberg TV, Djurovic S, Andreassen OA, Melle I (2015)
   Polygenic risk scores in bipolar disorder subgroups
   J Affect Disord, 183, 310-4
   DOI 10.1016/j.jad.2015.05.021, PubMed 26047958
2. Helle S, Ringen PA, Melle I, Larsen TK, Gjestad R, Johnsen E, Lagerberg TV, Andreassen OA, Kroken RA, Joa I, Ten Velden Hegelstad W, Løberg EM (2015)
   Cannabis use is associated with 3years earlier onset of schizophrenia spectrum disorder in a naturalistic, multi-site sample (N=1119)
   Schizophr Res, 170 (1), 217-21
   DOI 10.1016/j.schres.2015.11.027, PubMed 26682958
3. Kaufmann T, Skåtun KC, Alnæs D, Doan NT, Duff EP, Tønnesen S, Roussos E, Ueland T, Aminoff SR, Lagerberg TV, Agartz I, Melle IS, Smith SM, Andreassen OA, Westlye LT (2015)
   Disintegration of Sensorimotor Brain Networks in Schizophrenia
   Schizophr Bull, 41 (6), 1326-35
   DOI 10.1093/schbul/sbv060, PubMed 25943122
4. Kvitland LR, Melle I, Aminoff SR, Demmo C, Lagerberg TV, Andreassen OA, Ringen PA (2015)
   Continued cannabis use at one year follow up is associated with elevated mood and lower global functioning in bipolar I disorder
   BMC Psychiatry, 15, 11
   DOI 10.1186/s12888-015-0389-x, PubMed 25651990
5. Lagerberg TV, Icick R, Andreassen OA, Ringen PA, Etain B, Aas M, Henry C, Bjella TD, Melle I, Bellivier F (2015)
   Cannabis use disorder is associated with greater illness severity in tobacco smoking patients with bipolar disorder
   J Affect Disord, 190, 286-293
   DOI 10.1016/j.jad.2015.10.023, PubMed 26544611
6. Steinan MK, Morken G, Lagerberg TV, Melle I, Andreassen OA, Vaaler AE, Scott J (2015)
   Delayed sleep phase: An important circadian subtype of sleep disturbance in bipolar disorders
   J Affect Disord, 191, 156-63
   DOI 10.1016/j.jad.2015.11.025, PubMed 26655861
7. Steinan MK, Scott J, Lagerberg TV, Melle I, Andreassen OA, Vaaler AE, Morken G (2015)
   Sleep problems in bipolar disorders: more than just insomnia
   Acta Psychiatr Scand, 133 (5), 368-77
   DOI 10.1111/acps.12523, PubMed 26590799

Publications 2014

1. Kvitland LR, Melle I, Aminoff SR, Lagerberg TV, Andreassen OA, Ringen PA (2014)
   Cannabis use in first-treatment bipolar I disorder: relations to clinical characteristics
   Early Interv Psychiatry, 10 (1), 36-44
   DOI 10.1111/eip.12138, PubMed 24739233
2. Aas M, Pedersen G, Henry C, Bjella T, Bellivier F, Leboyer M, Kahn JP, Cohen RF, Gard S, Aminoff SR, Lagerberg TV, Andreassen OA, Melle I, Etain B (2014)
   Psychometric properties of the Affective Lability Scale (54 and 18-item version) in patients with bipolar disorder, first-degree relatives, and healthy controls
   J Affect Disord, 172, 375-80
   DOI 10.1016/j.jad.2014.10.028, PubMed 25451440

Publications 2013

1. Aminoff SR, Hellvin T, Lagerberg TV, Berg AO, Andreassen OA, Melle I (2013)
   Neurocognitive features in subgroups of bipolar disorder
   Bipolar Disord, 15 (3), 272-83
   DOI 10.1111/bdi.12061, PubMed 23521608
2. Lagerberg TV, Kvitland LR, Aminoff SR, Aas M, Ringen PA, Andreassen OA, Melle I (2013)
   Indications of a dose-response relationship between cannabis use and age at onset in bipolar disorder
   Psychiatry Res, 215 (1), 101-4
   DOI 10.1016/j.psychres.2013.10.029, PubMed 24262665
3. Larsson S, Aas M, Klungsøyr O, Agartz I, Mork E, Steen NE, Barrett EA, Lagerberg TV, Røssberg JI, Melle I, Andreassen OA, Lorentzen S (2013)
   Patterns of childhood adverse events are associated with clinical characteristics of bipolar disorder
   BMC Psychiatry, 13, 97
   DOI 10.1186/1471-244X-13-97, PubMed 23522391

Publications 2012

1. Aminoff SR, Jensen J, Lagerberg TV, Hellvin T, Sundet K, Andreassen OA, Melle I (2012)
   An association between affective lability and executive functioning in bipolar disorder
   Psychiatry Res, 198 (1), 58-61
   DOI 10.1016/j.psychres.2011.12.044, PubMed 22405635
2. Hellvin T, Sundet K, Simonsen C, Aminoff SR, Lagerberg TV, Andreassen OA, Melle I (2012)
   Neurocognitive functioning in patients recently diagnosed with bipolar disorder
   Bipolar Disord, 14 (3), 227-38
   DOI 10.1111/j.1399-5618.2012.01004.x, PubMed 22548896
3. Larsson S, Andreassen OA, Aas M, Røssberg JI, Mork E, Steen NE, Barrett EA, Lagerberg TV, Peleikis D, Agartz I, Melle I, Lorentzen S (2012)
   High prevalence of childhood trauma in patients with schizophrenia spectrum and affective disorder
   Compr Psychiatry, 54 (2), 123-7
   DOI 10.1016/j.comppsych.2012.06.009, PubMed 22901835

Publications 2011

1. Berg AO, Melle I, Rossberg JI, Romm KL, Larsson S, Lagerberg TV, Andreassen OA, Hauff E (2011)
   Perceived discrimination is associated with severity of positive and depression/anxiety symptoms in immigrants with psychosis: a cross-sectional study
   BMC Psychiatry, 11, 77
   DOI 10.1186/1471-244X-11-77, PubMed 21548949
2. Engh JA, Sundet K, Simonsen C, Vaskinn A, Lagerberg TV, Opjordsmoen S, Friis S, Andreassen OA (2011)
   Verbal learning contributes to cognitive insight in schizophrenia independently of affective and psychotic symptoms
   Prog Neuropsychopharmacol Biol Psychiatry, 35 (4), 1059-63
   DOI 10.1016/j.pnpbp.2011.02.021, PubMed 21392553
3. Lagerberg TV, Sundet K, Aminoff SR, Berg AO, Ringen PA, Andreassen OA, Melle I (2011)
   Excessive cannabis use is associated with earlier age at onset in bipolar disorder
   Eur Arch Psychiatry Clin Neurosci, 261 (6), 397-405
   DOI 10.1007/s00406-011-0188-4, PubMed 21267743
4. Steen NE, Lorentzen S, Barrett EA, Lagerberg TV, Hope S, Larsson S, Berg AO, Agartz I, Melle I, Berg JP, Andreassen OA (2011)
   Sex-specific cortisol levels in bipolar disorder and schizophrenia during mental challenge--relationship to clinical characteristics and medication
   Prog Neuropsychopharmacol Biol Psychiatry, 35 (4), 1100-7
   DOI 10.1016/j.pnpbp.2011.03.008, PubMed 21420462

Publications 2010

1. Aminoff SR, Jensen J, Lagerberg TV, Andreassen OA, Melle I (2010)
   Decreased self-reported arousal in schizophrenia during aversive picture viewing compared to bipolar disorder and healthy controls
   Psychiatry Res, 185 (3), 309-14
   DOI 10.1016/j.psychres.2010.07.026, PubMed 20724003
2. Lagerberg TV, Andreassen OA, Ringen PA, Berg AO, Larsson S, Agartz I, Sundet K, Melle I (2010)
   Excessive substance use in bipolar disorder is associated with impaired functioning rather than clinical characteristics, a descriptive study
   BMC Psychiatry, 10, 9
   DOI 10.1186/1471-244X-10-9, PubMed 20105311
3. Lagerberg TV, Larsson S, Sundet K, Hansen CB, Hellvin T, Andreassen OA, Melle I (2010)
   Treatment delay and excessive substance use in bipolar disorder
   J Nerv Ment Dis, 198 (9), 628-33
   DOI 10.1097/NMD.0b013e3181ef3ef4, PubMed 20823723

Publications 2009

1. Larsson S, Lorentzen S, Mork E, Barrett EA, Steen NE, Lagerberg TV, Berg AO, Aminoff SR, Agartz I, Melle I, Andreassen OA (2009)
   Age at onset of bipolar disorder in a Norwegian catchment area sample
   J Affect Disord, 124 (1-2), 174-7
   DOI 10.1016/j.jad.2009.10.031, PubMed 19931918

Publications 2007

1. Ringen PA, Lagerberg TV, Birkenaes AB, Engn J, Faerden A, Jónsdottir H, Nesvåg R, Friis S, Opjordsmoen S, Larsen F, Melle I, Andreassen OA (2007)
   Differences in prevalence and patterns of substance use in schizophrenia and bipolar disorder
   Psychol Med, 38 (9), 1241-9
   DOI 10.1017/S003329170700236X, PubMed 18070373