Publications by Jan Ivar Røssberg

135 publications found

1. Liu S, Agartz I, Allen P, Amminger GP, Andreassen OA, Bachman P, Baeza I, Baldwin H, Bartholomeusz CF, Borgwardt S, Catalano S, Chen X, Cho KIK, Choi S, Colibazzi T, Cooper RE, Corcoran CM, Cropley VL, de Haan L, de la Fuente-Sandoval C, Dolz M, Ebdrup BH, Fortea A, Fusar-Poli P, Glenthøj LB et al. (2025)
   Structural covariance network topology in individuals at clinical high risk for psychosis: the ENIGMA-CHR Study
   (in press)
   DOI 10.1038/s41380-025-03304-6, PubMed 41125743
2. Bjaastad JF, Lillevoll K, Hoffart A, Nilsen TS, Kjoteroe J, Prescott P, Røssberg JI, Clark DM, Dahl K, Wang CEA, Lorentzen V (2025)
   The effect of behavioral rehearsal in the training of clinical psychology students in cognitive therapy for social anxiety disorder: A randomized controlled trial
   193, 104849
   DOI 10.1016/j.brat.2025.104849, PubMed 40907373
3. Gjerdalen OS, Zucknick M, Westlie IT, Bull H, Evensen S, Falkum E, Grande M, Hagen R, Romm KL, Jensen LH, Ringen PA, Schjøtt-Pedersen O, Sönmez N, Ueland T, Østefjells T, Røssberg JI, Lystad JU (2025)
   An exploratory study of the relevance of therapy format and therapist' training in individual cognitive behavioral therapy for psychosis
   16, 1527549
   DOI 10.3389/fpsyt.2025.1527549, PubMed 40673229
4. Johnsen E, Andreassen OA, Melle I, Røssberg JI, Weibell M, Kroken RA (2025)
   Antipsykotika har god effekt ved psykoselidelser
   145 (8)
   DOI 10.4045/tidsskr.25.0271, PubMed 40575821
5. Eielsen M, Ulvenes PG, Melsom L, Wampold BE, Røssberg JI, Myhre F, Sørensen Ø, Rasch SM, Abbass A (2025)
   Development and psychometric evaluation of a screening instrument for cognitive perceptual disruption (Copeds) in psychotherapy patients
   1-13 (in press)
   DOI 10.1080/10503307.2025.2495773, PubMed 40313179
6. Baklund L, Røssberg JI, Melbye SA, Pesonen H, Møller P (2025)
   The influence of mood and social relationships on the intensity of basic self-disturbance: an experience sampling method investigation
   16, 1514351
   DOI 10.3389/fpsyt.2025.1514351, PubMed 40303448
7. Dysthe KK, Røssberg JI, Brandtzaeg PB, Skjuve M, Følstad A, Haavet OR, Klovning A (2023)
   The Depressed Teenage Brain: Chatbot Psychoeducation
   1 (3), 334-342
   DOI 10.1016/j.mcpdig.2023.03.008, PubMed 40206612
8. Strandberg RB, Nilsen RM, Pouwer F, Igland J, Røssberg JI, Jenum AK, Buhl ES, Iversen MM (2025)
   Pharmacologically treated depression, anxiety, and insomnia in individuals with type 2 diabetes: The role of diabetes duration, age, and age at diabetes onset. A Norwegian population-based registry study from the OMIT cohort
   190, 112057
   DOI 10.1016/j.jpsychores.2025.112057, PubMed 39955944
9. Malkomsen A, Wilberg T, Bull-Hansen B, Dammen T, Evensen JH, Hummelen B, Løvgren A, Osnes K, Ulberg R, Røssberg JI (2025)
   Comparative effectiveness of short-term psychodynamic psychotherapy and cognitive behavioral therapy for major depression in psychiatric outpatient clinics: a randomized controlled trial
   25 (1), 113
   DOI 10.1186/s12888-025-06544-6, PubMed 39934737
10. Breivik Øvstebø R, Pedersen G, Wilberg T, Røssberg JI, Johnsen Dahl HS, Kvarstein EH (2024)
    Countertransference, alliance, and outcome in the treatment of patients with personality disorder: a longitudinal naturalistic study
    15, 1490056
    DOI 10.3389/fpsyt.2024.1490056, PubMed 39777194
11. Malkomsen A, Røssberg JI, Dammen T, Wilberg T, Løvgren A, Ulberg R, Evensen J (2024)
    "It takes time to see the whole picture": patients' views on improvement in cognitive behavioral therapy and psychodynamic therapy after three years
    15, 1342950
    DOI 10.3389/fpsyt.2024.1342950, PubMed 38559399
12. Zhu Y, Maikusa N, Radua J, Sämann PG, Fusar-Poli P, Agartz I, Andreassen OA, Bachman P, Baeza I, Chen X, Choi S, Corcoran CM, Ebdrup BH, Fortea A, Garani RR, Glenthøj BY, Glenthøj LB, Haas SS, Hamilton HK, Hayes RA, He Y, Heekeren K, Kasai K, Katagiri N, Kim M et al. (2024)
    Using brain structural neuroimaging measures to predict psychosis onset for individuals at clinical high-risk
    29 (5), 1465-1477
    DOI 10.1038/s41380-024-02426-7, PubMed 38332374
13. Protić S, Wittmann L, Taubner S, Conejo-Cerón S, Ioannou Y, Heinonen E, Saliba A, Moreno-Peral P, Volkert J, Barkauskiene R, Julia Schmidt S, Rangel Santos Henriques MI, Pinheiro Mota C, Sales CMD, Røssberg JI, Adler A, Giacomo DD, Mucha Vieira F, Drndarević N, Ulberg R, Stepisnik Perdih T, Mestre JM (2024)
    Mediators of Outcome in Trauma-Focused Psychotherapy with Youth: A Systematic Review
    25 (4), 2672-2688
    DOI 10.1177/15248380231223264, PubMed 38281152
14. Øvstebø RB, Pedersen G, Wilberg T, Røssberg JI, Dahl HSJ, Kvarstein EH (2023)
    Countertransference in the treatment of patients with personality disorders: A longitudinal study
    34 (8), 1051-1065
    DOI 10.1080/10503307.2023.2279645, PubMed 37963354
15. ENIGMA Clinical High Risk for Psychosis Working Group, Haas SS, Ge R, Agartz I, Amminger GP, Andreassen OA, Bachman P, Baeza I, Choi S, Colibazzi T, Cropley VL, de la Fuente-Sandoval C, Ebdrup BH, Fortea A, Fusar-Poli P, Glenthøj BY, Glenthøj LB, Haut KM, Hayes RA, Heekeren K, Hooker CI, Hwang WJ, Jahanshad N, Kaess M, Kasai K et al. (2024)
    Normative Modeling of Brain Morphometry in Clinical High Risk for Psychosis
    81 (1), 77-88
    DOI 10.1001/jamapsychiatry.2023.3850, PubMed 37819650
16. Landrø NI, Harmer CJ, Blackwell SE, Bø R, Dawson G, Goodwin G, Hagen HS, Kingslake J, Klovning A, Klungsøyr O, Schjøtt-Pedersen O, Sæther AK, Torgersen KS, Vaaler A, Andreassen OA, Røssberg JI (2023)
    Combining antidepressants and attention bias modification in primary health care (DEPTREAT): Protocol for a pragmatic randomized controlled trial
    133, 107326
    DOI 10.1016/j.cct.2023.107326, PubMed 37652355
17. Gohar SM, Hegelstad WTV, Auestad B, Haahr UH, Joa I, Johannessen JO, Larsen TK, Opjordsmoen S, Rund BR, Røssberg JI, Simonsen E, Friis S, Melle I (2023)
    Association between early suicidal trajectories in first-episode psychosis and 10-year follow-up: TIPS registry-linked study
    10 (7), 528-536
    DOI 10.1016/S2215-0366(23)00156-6, PubMed 37353264
18. Ottesen A, T V Hegelstad W, Joa I, Opjordsmoen SE, Rund BR, Røssberg JI, Simonsen E, Johannessen JO, Larsen TK, Haahr UH, McGlashan TH, Friis S, Melle I (2021)
    Childhood trauma, antipsychotic medication, and symptom remission in first-episode psychosis
    53 (6), 2399-2408
    DOI 10.1017/S003329172100427X, PubMed 37144963
19. Taubner S, Ioannou Y, Saliba A, Sales CMD, Volkert J, Protić S, Adler A, Barkauskiene R, Conejo-Cerón S, Di Giacomo D, Mestre JM, Moreno-Peral P, Vieira FM, Mota CP, Henriques MIRS, Røssberg JI, Perdih TS, Schmidt SJ, Zettl M, Ulberg R, Heinonen E (2023)
    Mediators of outcome in adolescent psychotherapy and their implications for theories and mechanisms of change: a systematic review
    33 (10), 3321-3358
    DOI 10.1007/s00787-023-02186-9, PubMed 36918434
20. Dysthe KK, Røssberg JI, Brandtzaeg PB, Skjuve M, Haavet OR, Følstad A, Klovning A (2023)
    Analyzing User-Generated Web-Based Posts of Adolescents' Emotional, Behavioral, and Symptom Responses to Beliefs About Depression: Qualitative Thematic Analysis
    25, e37289
    DOI 10.2196/37289, PubMed 36692944
21. Eielsen M, Ulvenes PG, Røssberg JI, Høstmælingen A, Soma CS, Wampold BE (2022)
    The Effectiveness of an Intensive Inpatient Psychotherapy Program for Chronic Depression: A naturalistic comparison with wait list
    22 (1), 745
    DOI 10.1186/s12888-022-04381-5, PubMed 36451114
22. Kvam TM, Goksøyr IW, Stewart LH, Repantis D, Røssberg JI, Andreassen OA (2022)
    Study protocol for "MDMA-assisted therapy as a treatment for major depressive disorder: A proof of principle study"
    13, 954388
    DOI 10.3389/fpsyt.2022.954388, PubMed 36386973
23. Baklund L, Røssberg JI, Møller P (2022)
    Linguistic markers and basic self-disturbances among adolescents at risk of psychosis. A qualitative study
    55, 101733
    DOI 10.1016/j.eclinm.2022.101733, PubMed 36386038
24. Van Hoy A, Rzeszutek M, Pięta M, Mestre JM, Rodríguez-Mora Á, Midgley N, Omylinska-Thurston J, Dopierala A, Falkenström F, Ferlin J, Gergov V, Lazić M, Ulberg R, Røssberg JI, Hancheva C, Stoyanova S, Schmidt SJ, Podina IR, Ferreira N, Kagialis A, Löffler-Stastka H, Gruszczyńska E (2022)
    Subjective well-being among psychotherapists during the coronavirus disease pandemic: A cross-cultural survey from 12 european countries
    154, 315-323
    DOI 10.1016/j.jpsychires.2022.07.065, PubMed 35994913
25. Van Hoy A, Rzeszutek M, Pięta M, Mestre JM, Rodríguez-Mora Á, Midgley N, Omylinska-Thurston J, Dopierala A, Falkenström F, Ferlin J, Gergov V, Lazić M, Ulberg R, Røssberg JI, Hancheva C, Stoyanova S, Schmidt SJ, Podina I, Ferreira N, Kagialis A, Löffler-Stastka H, Gruszczyńska E (2022)
    Burnout among psychotherapists: a cross-cultural value survey among 12 European countries during the coronavirus disease pandemic
    12 (1), 13527
    DOI 10.1038/s41598-022-17669-z, PubMed 35941352
26. Baldwin H, Radua J, Antoniades M, Haas SS, Frangou S, Agartz I, Allen P, Andreassen OA, Atkinson K, Bachman P, Baeza I, Bartholomeusz CF, Chee MWL, Colibazzi T, Cooper RE, Corcoran CM, Cropley VL, Ebdrup BH, Fortea A, Glenthøj LB, Hamilton HK, Haut KM, Hayes RA, He Y, Heekeren K et al. (2022)
    Neuroanatomical heterogeneity and homogeneity in individuals at clinical high risk for psychosis
    12 (1), 297
    DOI 10.1038/s41398-022-02057-y, PubMed 35882855
27. Malkomsen A, Røssberg JI, Dammen T, Wilberg T, Løvgren A, Ulberg R, Evensen J (2022)
    How therapists in cognitive behavioral and psychodynamic therapy reflect upon the use of metaphors in therapy: a qualitative study
    22 (1), 433
    DOI 10.1186/s12888-022-04083-y, PubMed 35761306
28. Gjerdalen OS, Lystad JU, Bull H, Ringen PA, Røssberg JI, Martinsen EW, Ueland T, Falkum E, Evensen S (2022)
    Vocational rehabilitation augmented with cognitive behavioral therapy or cognitive remediation for individuals with schizophrenia: a 5-year follow-up study
    77 (1), 23-30
    DOI 10.1080/08039488.2022.2042598, PubMed 35209785
29. Mestre JM, Taubner S, Mota CP, Rangel Henriques M, Saliba A, Heinonen E, Ramos S, Moreno-Peral P, Volkert J, Adler A, Barkauskiene R, Conejo-Cerón S, Di Giacomo D, Ioannou Y, Mucha Vieira F, Røssberg JI, Sales CMD, Schmidt SJ, Stepisnik Perdih T, Ulberg R, Protić S (2022)
    Theories of Change and Mediators of Psychotherapy Effectiveness in Adolescents With Externalising Behaviours: A Systematic Review
    12, 730921
    DOI 10.3389/fpsyt.2021.730921, PubMed 35095586
30. Værnes TG, Røssberg JI, Melle I, Nelson B, Romm KL, Møller P (2021)
    Basic self-disturbance trajectories in clinical high risk for psychosis: a one-year follow-up study
    272 (6), 1007-1019
    DOI 10.1007/s00406-021-01349-6, PubMed 34783878
31. Malkomsen A, Røssberg JI, Dammen T, Wilberg T, Løvgren A, Ulberg R, Evensen J (2021)
    Digging down or scratching the surface: how patients use metaphors to describe their experiences of psychotherapy
    21 (1), 533
    DOI 10.1186/s12888-021-03551-1, PubMed 34706691
32. Volkert J, Taubner S, Barkauskiene R, Mestre JM, Sales CMD, Thiele V, Saliba A, Protić S, Adler A, Conejo-Cerón S, Di Giacomo D, Ioannou Y, Moreno-Peral P, Vieira FM, Mota CP, Raleva M, Rangel Santos Henriques MI, Røssberg JI, Schmidt SJ, Perdih TS, Ulberg R, Heinonen E (2021)
    Mediators and Theories of Change in Psychotherapy for Young People With Personality Disorders: A Systematic Review Protocol
    12, 703095
    DOI 10.3389/fpsyg.2021.703095, PubMed 34616334
33. Dysthe KK, Haavet OR, Røssberg JI, Brandtzaeg PB, Følstad A, Klovning A (2021)
    Finding Relevant Psychoeducation Content for Adolescents Experiencing Symptoms of Depression: Content Analysis of User-Generated Online Texts
    23 (9), e28765
    DOI 10.2196/28765, PubMed 34591021
34. Conejo-Cerón S, Taubner S, Heinonen E, Adler A, Barkauskiene R, Di Giacomo D, Ioannou Y, Mestre JM, Henriques MR, Mota CP, Protić S, Raleva M, Vieira FM, Røssberg JI, Sales CMD, Saliba A, Schmidt SJ, Perdih TS, Ulberg R, Volkert J, Moreno-Peral P (2021)
    Mediators in Psychological Treatments for Anxiety and Depression in Adolescents and Young People: A Protocol of a Systematic Review
    12, 708436
    DOI 10.3389/fpsyg.2021.708436, PubMed 34367033
35. ENIGMA Clinical High Risk for Psychosis Working Group, Jalbrzikowski M, Hayes RA, Wood SJ, Nordholm D, Zhou JH, Fusar-Poli P, Uhlhaas PJ, Takahashi T, Sugranyes G, Kwak YB, Mathalon DH, Katagiri N, Hooker CI, Smigielski L, Colibazzi T, Via E, Tang J, Koike S, Rasser PE, Michel C, Lebedeva I, Hegelstad WTV, de la Fuente-Sandoval C, Waltz JA et al. (2021)
    Association of Structural Magnetic Resonance Imaging Measures With Psychosis Onset in Individuals at Clinical High Risk for Developing Psychosis: An ENIGMA Working Group Mega-analysis
    78 (7), 753-766
    DOI 10.1001/jamapsychiatry.2021.0638, PubMed 33950164
36. Lockertsen V, Holm LAW, Nilsen L, Rø Ø, Burger LM, Røssberg JI (2021)
    The transition process between child and adolescent mental services and adult mental health services for patients with anorexia nervosa: a qualitative study of the parents' experiences
    9 (1), 45
    DOI 10.1186/s40337-021-00404-w, PubMed 33849646
37. Taubner S, Saliba A, Heinonen E, Protić S, Volkert J, Adler A, Barkauskiene R, Conejo Cerón S, Di Giacomo D, Ioannou Y, Mestre JM, Moreno-Peral P, Mucha Vieira F, Mota CP, Raleva M, Rangel Santos Henriques MI, Røssberg JI, Schmidt SJ, Stepišnik Perdih T, Ulberg R, Sales CMD (2021)
    Mediators and theories of change in psychotherapy with adolescents: a systematic review protocol
    11 (3), e042411
    DOI 10.1136/bmjopen-2020-042411, PubMed 33674369
38. Røssberg JI, Evensen J, Dammen T, Wilberg T, Klungsøyr O, Jones M, Bøen E, Egeland R, Breivik R, Løvgren A, Ulberg R (2021)
    Mechanisms of change and heterogeneous treatment effects in psychodynamic and cognitive behavioural therapy for patients with depressive disorder: a randomized controlled trial
    9 (1), 11
    DOI 10.1186/s40359-021-00517-6, PubMed 33482927
39. Bahrami S, Shadrin A, Frei O, O'Connell KS, Bettella F, Krull F, Fan CC, Røssberg JI, Hindley G, Ueland T, Dale AM, Djurovic S, Steen NE, Smeland OB, Andreassen OA (2021)
    Genetic loci shared between major depression and intelligence with mixed directions of effect
    5 (6), 795-801
    DOI 10.1038/s41562-020-01031-2, PubMed 33462475
40. Løvgren A, Røssberg JI, Engebretsen E, Ulberg R (2020)
    Improvement in Psychodynamic Psychotherapy for Depression: A Qualitative Study of the Patients' Perspective
    17 (18)
    DOI 10.3390/ijerph17186843, PubMed 32961671
41. Lockertsen V, Nilsen L, Holm LAW, Rø Ø, Burger LM, Røssberg JI (2020)
    Mental health professionals' experiences transitioning patients with anorexia nervosa from child/adolescent to adult mental health services: a qualitative study
    20 (1), 891
    DOI 10.1186/s12913-020-05740-2, PubMed 32958078
42. Lockertsen V, Nilsen L, Holm LAW, Rø Ø, Burger LM, Røssberg JI (2020)
    Experiences of patients with anorexia nervosa during the transition from child and adolescent mental health services to adult mental health services
    8, 37
    DOI 10.1186/s40337-020-00313-4, PubMed 32793350
43. Jones M, Råbu M, Røssberg JI, Ulberg R (2020)
    Therapists' Experiences of Psychodynamic Therapy with and without Transference Interventions for Adolescents with Depression
    17 (13)
    DOI 10.3390/ijerph17134628, PubMed 32605079
44. Breivik R, Wilberg T, Evensen J, Røssberg JI, Dahl HSJ, Pedersen G (2020)
    Countertransference feelings and personality disorders: a psychometric evaluation of a brief version of the Feeling Word Checklist (FWC-BV)
    20 (1), 141
    DOI 10.1186/s12888-020-02556-6, PubMed 32228529
45. Sönmez N, Romm KL, Østefjells T, Grande M, Jensen LH, Hummelen B, Tesli M, Melle I, Røssberg JI (2019)
    Cognitive behavior therapy in early psychosis with a focus on depression and low self-esteem: A randomized controlled trial
    97, 152157
    DOI 10.1016/j.comppsych.2019.152157, PubMed 31935529
46. Weibell MA, Johannessen JO, Auestad B, Bramness J, Brønnick K, Haahr U, Joa I, Larsen TK, Melle I, Opjordsmoen S, Rund BR, Røssberg JI, Simonsen E, Vaglum P, Stain H, Friis S, Hegelstad WTV (2019)
    Early Substance Use Cessation Improves Cognition-10 Years Outcome in First-Episode Psychosis Patients
    10, 495
    DOI 10.3389/fpsyt.2019.00495, PubMed 31354551
47. Værnes TG, Røssberg JI, Møller P (2019)
    Anomalous self-experiences are strongly associated with negative symptoms in a clinical high-risk for psychosis sample
    93, 65-72
    DOI 10.1016/j.comppsych.2019.07.003, PubMed 31351243
48. Løvgren A, Røssberg JI, Nilsen L, Engebretsen E, Ulberg R (2019)
    How do adolescents with depression experience improvement in psychodynamic psychotherapy? A qualitative study
    19 (1), 95
    DOI 10.1186/s12888-019-2080-0, PubMed 30898111
49. Bramness JG, Røssberg JI (2018)
    [Antipsychotic drugs for more than two years?]
    138 (19)
    DOI 10.4045/tidsskr.18.0844, PubMed 30497254
50. Røberg L, Nilsen L, Røssberg JI (2018)
    How do men with severe sexual and physical childhood traumatization experience trauma-stabilizing group treatment? A qualitative study
    9 (1), 1541697
    DOI 10.1080/20008198.2018.1541697, PubMed 30455852
51. Gardsjord ES, Romm KL, Røssberg JI, Friis S, Barder HE, Evensen J, Haahr U, Ten Velden Hegelstad W, Joa I, Johannessen JO, Langeveld J, Larsen TK, Opjordsmoen S, Rund BR, Simonsen E, Vaglum P, Melle I (2018)
    Depression and functioning are important to subjective quality of life after a first episode psychosis
    86, 107-114
    DOI 10.1016/j.comppsych.2018.07.014, PubMed 30114656
52. Værnes TG, Røssberg JI, Møller P (2018)
    Anomalous Self-Experiences: Markers of Schizophrenia Vulnerability or Symptoms of Depersonalization Disorder? A Phenomenological Investigation of Two Cases
    51 (3), 198-209
    DOI 10.1159/000488462, PubMed 29730662
53. Langeveld J, Bjørkly S, Evensen J, Joa I, Johannessen JO, Larsen TK, Melle I, Opjordsmoen S, Røssberg JI, Rund BR, Simonsen E, Vaglum P, Velden WT, McGlashan T, Friis S (2017)
    A 10-year follow-up study of violent victimization in first episode psychosis: Risk and protective factors
    259, 545-549
    DOI 10.1016/j.psychres.2017.11.013, PubMed 29172178
54. Gardsjord ES, Romm KL, Røssberg JI, Friis S, Barder HE, Evensen J, Haahr U, Ten Velden Hegelstad W, Joa I, Johannessen JO, Langeveld J, Larsen TK, Opjordsmoen S, Rund BR, Simonsen E, Vaglum P, McGlashan T, Melle I (2017)
    Is going into stable symptomatic remission associated with a more positive development of life satisfaction? A 10-year follow-up study of first episode psychosis
    193, 364-369
    DOI 10.1016/j.schres.2017.07.006, PubMed 28701275
55. Røssberg JI, Andreassen OA, Ilner SO (2017)
    Re: Psykiatriens indre konflikter eksponert
    137 (9), 594-595
    DOI 10.4045/tidsskr.17.0288, PubMed 28468447
56. Røssberg JI, Andreassen OA, Ilner SO (2017)
    [Medication-free hospital records - a measure not based on knowledge]
    137 (6), 426-427
    DOI 10.4045/tidsskr.17.0091, PubMed 28332789
57. 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
    73, 84-92
    DOI 10.1016/j.comppsych.2016.11.008, PubMed 27918949
58. Hegelstad WT, Bronnick KS, Barder HE, Evensen JH, Haahr U, Joa I, Johannessen JO, Langeveld J, Larsen TK, Melle I, Opjordsmoen S, Rund BR, Rossberg JI, Simonsen E, Vaglum PW, McGlashan TH, Friis S (2016)
    Preventing Poor Vocational Functioning in Psychosis Through Early Intervention
    68 (1), 100-103
    DOI 10.1176/appi.ps.201500451, PubMed 27582238
59. Gardsjord ES, Romm KL, Friis S, Barder HE, Evensen J, Haahr U, ten Velden Hegelstad W, Joa I, Johannessen JO, Langeveld J, Larsen TK, Opjordsmoen S, Rund BR, Simonsen E, Vaglum P, McGlashan T, Melle I, Røssberg JI (2016)
    Subjective quality of life in first-episode psychosis. A ten year follow-up study
    172 (1-3), 23-8
    DOI 10.1016/j.schres.2016.02.034, PubMed 26947210
60. Haahr UH, Larsen TK, Simonsen E, Rund BR, Joa I, Rossberg JI, Johannessen JO, Langeveld J, Evensen J, Trauelsen AMH, Vaglum P, Opjordsmoen S, Hegelstad WTV, Friis S, McGlashan T, Melle I (2016)
    Relation between premorbid adjustment, duration of untreated psychosis and close interpersonal trauma in first-episode psychosis
    12 (3), 316-323
    DOI 10.1111/eip.12315, PubMed 26800653
61. Friis S, Melle I, Johannessen JO, Røssberg JI, Barder HE, Evensen JH, Haahr U, Ten Velden Hegelstad W, Joa I, Langeveld J, Larsen TK, Opjordsmoen S, Rund BR, Simonsen E, Vaglum PW, McGlashan TH (2015)
    Early Predictors of Ten-Year Course in First-Episode Psychosis
    67 (4), 438-43
    DOI 10.1176/appi.ps.201400558, PubMed 26567932
62. Østefjells T, Melle I, Hagen R, Romm KL, Sönmez N, Andreassen OA, Røssberg JI (2015)
    Unhelpful metacognitive beliefs in early psychosis are associated with affective symptoms and childhood social adjustment
    169 (1-3), 280-285
    DOI 10.1016/j.schres.2015.10.026, PubMed 26519990
63. Nilsen L, Norheim I, Frich JC, Friis S, Røssberg JI (2015)
    Challenges for group leaders working with families dealing with early psychosis: a qualitative study
    15, 141
    DOI 10.1186/s12888-015-0540-8, PubMed 26134829
64. Rund BR, Barder HE, Evensen J, Haahr U, ten Velden Hegelstad W, Joa I, Johannessen JO, Langeveld J, Larsen TK, Melle I, Opjordsmoen S, Røssberg JI, Simonsen E, Sundet K, Vaglum P, McGlashan T, Friis S (2015)
    Neurocognition and Duration of Psychosis: A 10-year Follow-up of First-Episode Patients
    42 (1), 87-95
    DOI 10.1093/schbul/sbv083, PubMed 26101305
65. Athanasiu L, Smorr LL, Tesli M, Røssberg JI, Sønderby IE, Spigset O, Djurovic S, Andreassen OA (2015)
    Genome-wide association study identifies common variants associated with pharmacokinetics of psychotropic drugs
    29 (8), 884-91
    DOI 10.1177/0269881115584469, PubMed 25944848
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