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Jan Ivar Røssberg

Image of Jan Ivar Røssberg
Mobile phone +47 47 87 68 66
Username
Visiting address Administrasjonen sitter i bygg 20 3. etasje Gaustad sykehus 0372 Oslo
Postal address Postboks 1039 Blindern 0315 Oslo


Professional Interests

  • Teaching 
  • Psychotherapy for severe mental disorders 
  • Mechanisms and moderators in psychotherapy 
  • Individually tailored psychotherapy 
  • Countertransference reactions 
  • Early intervention 
  • Patients' experiences of being admitted to mental health care 
  • Family work 

Teaching

  • Professional study in medicine
  • Schizophrenia, psychoses, depression
  • Talk therapy/cognitive behavioral therapy
  • Project assignments
  • Specialist education in psychiatry

Academic Background

  • Specialist in psychiatry since January 2007. 
  • Medical doctorate, Ph.D., 2005. 
  • Medical studies at UiO (University of Oslo), 
  • 1989-95. Homeopathy studies at NAN (part-time), 
  • 1987-89. Natural science studies at UiO, 1986-87. 

Clinical Background 

  • Specialist/senior consultant in psychiatry. 
  • Introductory seminar in psychodynamic therapy 
  • Approved supervisor in cognitive-behavioral therapy

Research Focus

The primary emphasis has centered on tailoring treatments for individuals facing severe mental disorders. The ongoing research focus revolves around personalized talk therapy and comprehending its efficacy for those dealing with depression and psychotic disorders. This comprehensive approach encompasses both quantitative and qualitative methodologies to enhance our insights into the workings of various psychosocial treatments and identify avenues for improvement. The research extends to the optimization of the therapeutic environment in psychiatric wards, exploration of countertransference reactions, examination of diverse facets of early psychosis intervention, and conducting randomized controlled trials for cognitive-behavioral therapy, psychodynamic therapy, and family intervention. 

Awards and Nominations

  • Award for Outstanding Research, Oslo University Hospital, 2008.
  • Scientific Paper Prize 2012, American Psychoanalytic Association, for the article: "Effects of transference work in the context of therapeutic alliance and quality of object relations."
  • Highly Commended Paper: Emerald Literati Network Award for the article: "Adjustment of the UKU Side Effect Rating Scale for adults with intellectual disabilities. A pilot study.
Tags: Mental health, psychiatry, psychotherapy research, psychotherapy, depression, depression treatment, schizophrenia

Publications

  • Klungsøyr, Ole; Røssberg, Jan Ivar; Papageorgiou, Constantinos; Evensen, Julie Horgen; Løvgren, André & Malkomsen, Anders [Show all 10 contributors for this article] (2026). Personalized and optimal treatment estimated by a value search method in a randomized clinical trial with psychodynamic versus cognitive behavioral therapy for depression. Psychotherapy Research. ISSN 1050-3307. doi: 10.1080/10503307.2026.2682995. Full text in Research Archive
  • Hagen, Hallvard Solbø; Klonteig, Sandra; Røssberg, Jan Ivar; Jonassen, Rune; Landrø, Nils Inge & Bø, Ragnhild (2026). Fronto–Parietal EEG asymmetry interactions predict negative attention bias: A secondary data analysis. Cognitive, Affective, & Behavioral Neuroscience. ISSN 1530-7026. doi: 10.3758/s13415-026-01466-6. Full text in Research Archive
  • Norheim, Irene; Røssberg, Jan Ivar; Selle, Maria Lie; Woodberry, Kristen; O'Brien, Mary & Pedersen, Reidar [Show all 11 contributors for this article] (2026). Expressed emotions and caregiving appraisals among relatives of patients with psychotic disorders: a cross-sectional study. BMC Psychiatry. 26(1). doi: 10.1186/s12888-026-07868-7. Full text in Research Archive
  • Torgersen, Kristin Stensland; Dammen, Toril; Klungsøyr, Ole; Wilberg, Theresa; Bringager, Christine Bull & Evensen, Julie Horgen [Show all 11 contributors for this article] (2026). Improvement and deterioration trajectories in psychotherapy for depression: results from an RCT with cognitive behavioural and psychodynamic therapy. Nordic Journal of Psychiatry. ISSN 0803-9488. doi: 10.1080/08039488.2026.2648291. Full text in Research Archive
  • Hagen, Hallvard Solbø; Røssberg, Jan Ivar; Harmer, Catherine; Jonassen, Rune; Landrø, Nils Inge & Bø, Ragnhild (2025). Attention bias at baseline does not moderate the effect of attention bias modification for residual depressive symptoms. Journal of Behavior Therapy and Experimental Psychiatry. ISSN 0005-7916. 90, p. 1–8. doi: 10.1016/j.jbtep.2025.102073. Full text in Research Archive
  • Baklund, Lise; Røssberg, Jan Ivar; Melbye, Sigurd; Pesonen, Eerikki Henri & Møller, Paul (2025). The influence of mood and social relationships on the intensity of basic self-disturbance: an experience sampling method investigation. Frontiers in Psychiatry. 16. doi: 10.3389/fpsyt.2025.1514351. Full text in Research Archive
  • Bjåstad, Jon Fauskanger; Lillevoll, Kjersti; Hoffart, Asle; Nilsen, Toril Sørheim; Kjøterøe, Jane Katrine & Prescott, Peter [Show all 10 contributors for this article] (2025). Effekten av ferdighetstrening på utøvelse av kognitiv terapi for sosial angstlidelse: oppsummering av en randomisert kontrollert studie. Tidsskrift for kognitiv terapi. ISSN 1504-3142. Full text in Research Archive
  • Norheim, Irene; Pedersen, Reidar; Selle, Maria Lie; Røssberg, Jan Ivar; Hestmark, Lars & Heiervang, Kristin Sverdvik [Show all 13 contributors for this article] (2025). Effectiveness of implementing family involvement on patient outcomes in individuals with psychotic disorders: a pragmatic cluster randomised controlled trial. BMC Psychiatry. 25(1). doi: 10.1186/s12888-025-07501-z. Full text in Research Archive
  • Liu, Siwei; Agartz, Ingrid; Allen, Paul; Amminger, G. Paul; Andreassen, Ole & Bachman, Peter [Show all 113 contributors for this article] (2025). Structural covariance network topology in individuals at clinical high risk for psychosis: the ENIGMA-CHR Study. Molecular Psychiatry. ISSN 1359-4184. doi: 10.1038/s41380-025-03304-6. Full text in Research Archive
  • Malkomsen, Anders; Ulberg, Randi; Dammen, Toril; Evensen, Julie Horgen; Hummelen, Benjamin & Løvgren, André [Show all 9 contributors for this article] (2025). Childhood trauma and treatment outcomes in short-term psychodynamic and cognitive behavioral therapy for adult depression. Frontiers in Psychiatry. 16. doi: 10.3389/fpsyt.2025.1692277. Full text in Research Archive
  • Kvam, Tor-Morten; Goksøyr, Ivar; Rog, Justyna; Vooren, Inger-Tove Jentoft van de; Stewart, Lowan H. & Autran, Ingrid [Show all 12 contributors for this article] (2025). MDMA-assisted therapy for major depressive disorder: A seven-month follow-up proof of principle trial. Journal of Psychiatric Research. ISSN 0022-3956. 193, p. 302–308. doi: 10.1016/j.jpsychires.2025.11.030. Full text in Research Archive
  • Bjåstad, Jon Fauskanger; Lillevoll, Kjersti; Hoffart, Asle; Nilsen, Toril Sørheim; Kjøterøe, Jane Katrine & Prescott, Peter [Show all 11 contributors for this article] (2025). The effect of behavioral rehearsal in the training of clinical psychology students in cognitive therapy for social anxiety disorder: A randomized controlled trial. Behaviour Research and Therapy. ISSN 0005-7967. 193, p. 104849–104849. doi: 10.1016/j.brat.2025.104849. Full text in Research Archive
  • Strandberg, Ragnhild Bjarkøy; Nilsen, Roy Miodini; Pouwer, Francois; Igland, Jannicke; Røssberg, Jan Ivar & Jenum, Anne Karen [Show all 8 contributors for this article] (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. Journal of Psychosomatic Research. ISSN 0022-3999. 190, p. 1–8. doi: 10.1016/j.jpsychores.2025.112057. Full text in Research Archive
  • Malkomsen, Anders; Wilberg, Theresa; Bull-Hansen, Bente; Dammen, Toril; Evensen, Julie Horgen & Hummelen, Benjamin [Show all 10 contributors for this article] (2025). Comparative effectiveness of short-term psychodynamic psychotherapy and cognitive behavioral therapy for major depression in psychiatric outpatient clinics: a randomized controlled trial. BMC Psychiatry. 25. doi: 10.1186/s12888-025-06544-6. Full text in Research Archive
  • Gjerdalen, Oda Skancke; Zucknick, Manuela; Westlie, Ingvild Tvedt; Bull, Helen; Evensen, Stig & Falkum, Erik [Show all 17 contributors for this article] (2025). An exploratory study of the relevance of therapy format and therapist’ training in individual cognitive behavioral therapy for psychosis. Frontiers in Psychiatry. 16. doi: 10.3389/fpsyt.2025.1527549. Full text in Research Archive
  • Eielsen, Karl Mikkel Veum; Ulvenes, Pål Gunnar; Melsom, Linne; Wampold, Bruce E.; Røssberg, Jan Ivar & Myhre, Filip [Show all 9 contributors for this article] (2025). Development and psychometric evaluation of a screening instrument for cognitive perceptual disruption (Copeds) in psychotherapy patients. Psychotherapy Research. ISSN 1050-3307. doi: 10.1080/10503307.2025.2495773. Full text in Research Archive
  • Hagen, Hallvard Solbø; Røssberg, Jan Ivar; Harmer, Catherine; Jonassen, Rune; Landrø, Nils Inge & Bø, Ragnhild (2024). Does rumination moderate the effect of attention bias modification for depressive symptoms? Journal of Affective Disorders Reports. 17. doi: 10.1016/j.jadr.2024.100824. Full text in Research Archive
  • Baklund, Lise; Røssberg, Jan Ivar; Melbye, Sigurd & Møller, Paul (2024). Basic self-disturbance in adolescents at risk of psychosis: temporal stability investigated by the experience sampling method in a mixed method study. BMJ Mental Health. 27(1). doi: 10.1136/bmjment-2024-301209. Full text in Research Archive
  • Gjerstad, Christer Lunde; Schjøtt-Pedersen, Olivia; Seierstad, Andreas; Røssberg, Jan Ivar; Bull, Helen & Berentzen, Lars-Christian [Show all 7 contributors for this article] (2024). Virtuell virkelighet, virkelig mestring: Virtual Reality som verktøy i behandling av psykoselidelser. Tidsskrift for Norsk psykologforening (Psykologtidsskriftet). ISSN 0332-6470. 61(9), p. 578–586. doi: 10.52734/MXMI5408. Full text in Research Archive
  • Norheim, Irene; Pedersen, Reidar; Selle, Maria; Røssberg, Jan Ivar; Hestmark, Lars & Heiervang, Kristin Sverdvik [Show all 12 contributors for this article] (2024). Implementation of guidelines on Family Involvement for persons with Psychotic disorders: a pragmatic cluster randomized trial. Effect on relatives’ outcomes and family interventions received. Frontiers in Psychiatry. 15. doi: 10.3389/fpsyt.2024.1381007. Full text in Research Archive
  • Øvstebø, Randi Breivik; Pedersen, Geir; Wilberg, Theresa; Røssberg, Jan Ivar; Dahl, Hanne-Sofie Johnsen & Kvarstein, Elfrida Hartveit (2024). Countertransference, alliance, and outcome in the treatment of patients with personality disorder: a longitudinal naturalistic study. Frontiers in Psychiatry. 15. doi: 10.3389/fpsyt.2024.1490056. Full text in Research Archive
  • Igland, Jannicke; Forster, Rachel Bedenis; Jenum, Anne Karen; Strandberg, Ragnhild Bjarkøy; Berg, Tore Julsrud & Røssberg, Jan Ivar [Show all 8 contributors for this article] (2024). How valid is a prescription-based multimorbidity index (Rx-risk) in predicting mortality in the Outcomes and Multimorbidity In Type 2 diabetes (OMIT) study? A nation-wide registry-based cohort study from Norway. BMJ Open. 14(3). doi: 10.1136/bmjopen-2023-077027. Full text in Research Archive
  • Zhu, Yinghan; Maikusa, Norihide; Radua, Joaquim; Sämann, Philipp G.; Fusar-Poli, Paolo & Agartz, Ingrid [Show all 82 contributors for this article] (2024). Using brain structural neuroimaging measures to predict psychosis onset for individuals at clinical high-risk. Molecular Psychiatry. ISSN 1359-4184. 29, p. 1465–1477. doi: 10.1038/s41380-024-02426-7. Full text in Research Archive
  • Protić, Sonja; Wittmann, Lutz; Taubner, Svenja; Conejo-Cerón, Sonia; Ioannou, Yianna & Heinonen, Erkki [Show all 22 contributors for this article] (2024). Mediators of Outcome in Trauma-Focused Psychotherapy with Youth: A Systematic Review. Trauma, Violence, & Abuse. ISSN 1524-8380. doi: 10.1177/15248380231223264. Full text in Research Archive
  • Malkomsen, Anders; Røssberg, Jan Ivar; Dammen, Toril; Wilberg, Theresa; Løvgren, André & Ulberg, Randi [Show all 7 contributors for this article] (2024). “It takes time to see the whole picture”: patients’ views on improvement in cognitive behavioral therapy and psychodynamic therapy after three years. Frontiers in Psychiatry. 15. doi: 10.3389/fpsyt.2024.1342950. Full text in Research Archive
  • for, . ENIGMA Clinical High Risk; Haas, Shalaila S.; Ge, Ruiyang; Agartz, Ingrid; Amminger, G. Paul & Andreassen, Ole [Show all 51 contributors for this article] (2023). Normative Modeling of Brain Morphometry in Clinical High Risk for Psychosis. JAMA psychiatry. ISSN 2168-6238. 81(1), p. 77–88. doi: 10.1001/jamapsychiatry.2023.3850. Full text in Research Archive
  • Eielsen, Karl Mikkel Veum; Ulvenes, Pål Gunnar; Wampold, Bruce E.; Røssberg, Jan Ivar & Abbass, Allan (2023). A naturalistic pilot study exploring the differences between fragile and resistant patients in ISTDP. Journal of Affective Disorders Reports. 14. doi: 10.1016/j.jadr.2023.100639. Full text in Research Archive
  • Øvstebø, Randi Breivik; Pedersen, Geir Arild Feigum; Wilberg, Theresa; Røssberg, Jan Ivar; Dahl, Hanne-Sofie Johnsen & Kvarstein, Elfrida Hartveit (2023). Countertransference in the treatment of patients with personality disorders: A longitudinal study. Psychotherapy Research. ISSN 1050-3307. doi: 10.1080/10503307.2023.2279645. Full text in Research Archive
  • Dysthe, Kim Kristoffer; Røssberg, Jan Ivar; Brandtzæg, Petter Bae; skjuve, Marita; Haavet, Ole Rikard & Følstad, Asbjørn [Show all 7 contributors for this article] (2023). Analyzing User-Generated Web-Based Posts of Adolescents' Emotional, Behavioral, and Symptom Responses to Beliefs About Depression: Qualitative Thematic Analysis. Journal of Medical Internet Research (JMIR). ISSN 1439-4456. 25. doi: 10.2196/37289. Full text in Research Archive
  • Gohar, Sherif Mostafa Mohamed Ahmed; Hegelstad, Wenche; Auestad, Bjørn Henrik; Haahr, Ulrik Helt; Joa, Inge & Johannessen, Jan Olav [Show all 13 contributors for this article] (2023). Association between early suicidal trajectories in first-episode psychosis and 10-year follow-up: TIPS registry-linked study. The Lancet Psychiatry. ISSN 2215-0374. 10(7), p. 528–536. doi: 10.1016/S2215-0366(23)00156-6. Full text in Research Archive
  • Dysthe, Kim Kristoffer; Røssberg, Jan Ivar; Brandtzæg, Petter Bae; skjuve, Marita; Følstad, Asbjørn & Haavet, Ole Rikard [Show all 7 contributors for this article] (2023). The Depressed Teenage Brain: Chatbot Psychoeducation. Mayo Clinic proceedings. ISSN 0025-6196. 1(3), p. 334–342. doi: 10.1016/j.mcpdig.2023.03.008. Full text in Research Archive
  • Taubner, Svenja; Ioannou, Yianna; Saliba, Andrea; Sales, Célia M. D.; Volkert, Jana & Protić, Sonja [Show all 21 contributors for this article] (2023). Mediators of outcome in adolescent psychotherapy and their implications for theories and mechanisms of change: a systematic review. European Child and Adolescent Psychiatry. ISSN 1018-8827. doi: 10.1007/s00787-023-02186-9. Full text in Research Archive
  • Malkomsen, Anders; Røssberg, Jan Ivar; Dammen, Toril; Wilberg, Theresa; Løvgren, André & Ulberg, Randi [Show all 7 contributors for this article] (2022). How therapists in cognitive behavioral and psychodynamic therapy reflect upon the use of metaphors in therapy: a qualitative study. BMC Psychiatry. 22(1). doi: 10.1186/s12888-022-04083-y. Full text in Research Archive
  • Baldwin, Helen; Radua, Joaquim; Antoniades, Mathilde; Haas, Shalaila S.; Frangou, Sophia & Agartz, Ingrid [Show all 111 contributors for this article] (2022). Neuroanatomical heterogeneity and homogeneity in individuals at clinical high risk for psychosis. Translational Psychiatry. 12(297). doi: 10.1038/s41398-022-02057-y. Full text in Research Archive
  • Gjerdalen, Oda Skancke; Lystad, June Ullevoldsæter; Bull, Helen; Ringen, Petter Andreas; Røssberg, Jan Ivar & Martinsen, Egil Wilhelm [Show all 9 contributors for this article] (2022). Vocational rehabilitation augmented with cognitive behavioral therapy or cognitive remediation for individuals with schizophrenia: a 5-year follow-up study. Nordic Journal of Psychiatry. ISSN 0803-9488. 77(1), p. 23–30. doi: 10.1080/08039488.2022.2042598. Full text in Research Archive
  • Baklund, Lise; Røssberg, Jan Ivar & Møller, Paul (2022). Linguistic markers and basic self-disturbances among adolescents at risk of psychosis. A qualitative study. EClinicalMedicine. 55. doi: 10.1016/j.eclinm.2022.101733. Full text in Research Archive
  • Hoy, Angelika Van; Rzeszutek, Marcin; Pięta, Małgorzata; Mestre, Jose M.; Rodríguez-Mora, Álvaro & Midgley, Nick [Show all 22 contributors for this article] (2022). Subjective well-being among psychotherapists during the coronavirus disease pandemic: A cross-cultural survey from 12 european countries. Journal of Psychiatric Research. ISSN 0022-3956. 154, p. 315–323. doi: 10.1016/j.jpsychires.2022.07.065. Full text in Research Archive
  • Hoy, Angelika Van; Rzeszutek, Marcin; Pięta, Małgorzata; Mestre, Jose M.; Rodríguez-Mora, Álvaro & Midgley, Nick [Show all 22 contributors for this article] (2022). Burnout among psychotherapists: a cross-cultural value survey among 12 European countries during the coronavirus disease pandemic. Scientific Reports. 12(1). doi: 10.1038/s41598-022-17669-z. Full text in Research Archive
  • Eielsen, Karl Mikkel Veum; Ulvenes, Pål Gunnar; Røssberg, Jan Ivar; Høstmælingen, Andreas Teisner; Soma, Christina S. & Wampold, Bruce E. (2022). The Effectiveness of an Intensive Inpatient Psychotherapy Program for Chronic Depression: A naturalistic comparison with wait list. BMC Psychiatry. 22(1). doi: 10.1186/s12888-022-04381-5. Full text in Research Archive
  • Malkomsen, Anders; Røssberg, Jan Ivar; Dammen, Toril; Wilberg, Theresa; Løvgren, André & Evensen, Julie Horgen (2021). The synergistic process of improvement in cognitive behavioral therapy for major depression. International Journal of Environmental Research and Public Health (IJERPH). ISSN 1661-7827. 18(5), p. 1–17. doi: 10.3390/ijerph18052292. Full text in Research Archive
  • Bahrami, Shahram; Shadrin, Alexey A.; Frei, Oleksandr; O`Connell, Kevin; Bettella, Francesco & Krull, Florian [Show all 15 contributors for this article] (2021). Genetic loci shared between major depression and intelligence with mixed directions of effect. Nature Human Behaviour. p. 1–9. doi: 10.1038/s41562-020-01031-2. Full text in Research Archive
  • Mestre, Jose M.; Taubner, Svenja; Mota, Catarina Pinheiro; Henriques, Margarida Rangel; Saliba, Andrea & Heinonen, Erkki [Show all 21 contributors for this article] (2021). Theories of Change and Mediators of Psychotherapy Effectiveness in Adolescents With Externalising Behaviours: A Systematic Review. Frontiers in Psychiatry. 12. doi: 10.3389/fpsyt.2021.730921. Full text in Research Archive
  • Volkert, Jana; Taubner, Svenja; Barkauskiene, Rasa; Mestre, Jose M.; Sales, Célia M. D. & Thiele, Vanessa [Show all 22 contributors for this article] (2021). Mediators and Theories of Change in Psychotherapy for Young People With Personality Disorders: A Systematic Review Protocol. Frontiers in Psychology. 12, p. 1–7. doi: 10.3389/fpsyg.2021.703095. Full text in Research Archive
  • Dysthe, Kim Kristoffer; Haavet, Ole Rikard; Røssberg, Jan Ivar; Brandtzæg, Petter Bae; Følstad, Asbjørn & Klovning, Atle (2021). Finding relevant psychoeducation content for adolescents experiencing symptoms of depression: Content analysis of user-generated online texts. Journal of Medical Internet Research (JMIR). ISSN 1439-4456. 23(9), p. 1–15. doi: 10.2196/28765. Full text in Research Archive
  • Taubner, Svenja; Saliba, Andrea; Heinonen, Erkki; Protić, Sonja; Volkert, Jana & Adler, Asta [Show all 21 contributors for this article] (2021). Mediators and theories of change in psychotherapy with adolescents: a systematic review protocol. BMJ Open. 11(3). doi: 10.1136/bmjopen-2020-042411. Full text in Research Archive
  • Lockertsen, Veronica; Holm, Lill Ann Wellhaven; Nilsen, Liv; Rø, Øyvind; Burger, Linn May & Røssberg, Jan Ivar (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. Journal of Eating Disorders. 9. doi: 10.1186/s40337-021-00404-w. Full text in Research Archive
  • Værnes, Tor Gunnar; Røssberg, Jan Ivar; Melle, Ingrid; Nelson, Barnaby; Romm, Kristin Lie & Møller, Paul (2021). Basic self-disturbance in subjects at clinical high risk for psychosis: Relationship with clinical and functional outcomes at one year follow-up. Psychiatry Research. ISSN 0165-1781. 300. doi: 10.1016/j.psychres.2021.113942. Full text in Research Archive
  • Værnes, Tor Gunnar; Røssberg, Jan Ivar; Melle, Ingrid; Nelson, Barnaby; Romm, Kristin Lie & Møller, Paul (2021). Basic self-disturbance trajectories in clinical high risk for psychosis: a one-year follow-up study. European Archives of Psychiatry and Clinical Neuroscience. ISSN 0940-1334. p. 1–13. doi: 10.1007/s00406-021-01349-6. Full text in Research Archive
  • Malkomsen, Anders; Røssberg, J.I.; Dammen, T.; Wilberg, T.; Løvgren, A. & Ulberg, R. [Show all 7 contributors for this article] (2021). Digging down or scratching the surface: how patients use metaphors to describe their experiences of psychotherapy. BMC Psychiatry. 21(1), p. 1–12. doi: 10.1186/s12888-021-03551-1. Full text in Research Archive
  • Ottesen, Akiah; Hegelstad, Wenche; Joa, Inge; Opjordsmoen, Stein E.; Rund, Bjørn Rishovd & Røssberg, Jan Ivar [Show all 13 contributors for this article] (2021). Childhood trauma, antipsychotic medication, and symptom remission in first-episode psychosis. Psychological Medicine. ISSN 0033-2917. p. 1–10. doi: 10.1017/S003329172100427X. Full text in Research Archive
  • Jalbrzikowski, Maria; Hayes, Rebecca A.; Wood, Stephen J.; Dorte, Nordholm; Zhou, Juan H & Fusar-Poli, Paolo [Show all 51 contributors for this article] (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. JAMA psychiatry. ISSN 2168-6238. 78(7), p. 753–766. doi: 10.1001/jamapsychiatry.2021.0638. Full text in Research Archive
  • Røssberg, Jan Ivar; Evensen, Julie Horgen; Dammen, Toril; Wilberg, Theresa; Klungsøyr, Ole & Jones, Maria-Helene [Show all 11 contributors for this article] (2021). Mechanisms of change and heterogeneous treatment effects in psychodynamic and cognitive behavioural therapy for patients with depressive disorder: a randomized controlled trial. BMC Psychology. 9, p. 1–14. doi: 10.1186/s40359-021-00517-6. Full text in Research Archive
  • Løvgren, André; Røssberg, Jan Ivar; Engebretsen, Eivind & Ulberg, Randi (2020). Improvement in Psychodynamic Psychotherapy for Depression: A Qualitative Study of the Patients’ Perspective. International Journal of Environmental Research and Public Health (IJERPH). ISSN 1661-7827. 17(18). doi: 10.3390/ijerph17186843. Full text in Research Archive
  • Jones, Maria-Helene; Råbu, Marit; Røssberg, Jan Ivar & Ulberg, Randi (2020). Therapists’ experiences of psychodynamic therapy with and without transference interventions for adolescents with depression. International Journal of Environmental Research and Public Health (IJERPH). ISSN 1661-7827. 17(13), p. 1–18. doi: 10.3390/ijerph17134628. Full text in Research Archive
  • Lockertsen, Veronica; Nilsen, Liv; Holm, Lill Ann Wellhaven; Rø, Øyvind; Burger, Linn May & Røssberg, Jan Ivar (2020). Experiences of patients with anorexia nervosa during the transition from child and adolescent mental health services to adult mental health services. Journal of Eating Disorders. 8(1). doi: 10.1186/s40337-020-00313-4. Full text in Research Archive
  • Løvgren, André; Røssberg, Jan Ivar; Engebretsen, Eivind & Ulberg, Randi (2020). Multiple Mutuality. Positions and Storylines in Adolescent Psychodynamic Psychotherapy. Journal of Infant, Child, and Adolescent Psychotherapy (JICAP). ISSN 1528-9168. doi: 10.1080/15289168.2020.1771530. Full text in Research Archive
  • Lockertsen, Veronica; Nilsen, Liv; Holm, Lill Ann Wellhaven; Rø, Øyvind; Burger, Linn May & Røssberg, Jan Ivar (2020). Mental health professionals' experiences transitioning patients with anorexia nervosa from child/adolescent to adult mental health services: a qualitative study. BMC Health Services Research. 20:891(1), p. 1–9. doi: 10.1186/s12913-020-05740-2. Full text in Research Archive
  • Breivik, Randi; Wilberg, Theresa; Evensen, Julie Horgen; Røssberg, Jan Ivar; Dahl, Hanne-Sofie Johnsen & Pedersen, Geir Feigum (2020). Countertransference feelings and personality disorders: a psychometric evaluation of a brief version of the Feeling Word Checklist (FWC-BV). BMC Psychiatry. 20(1), p. 1–12. doi: 10.1186/s12888-020-02556-6. Full text in Research Archive
  • Løvgren, André; Røssberg, Jan Ivar; Nilsen, Liv; Engebretsen, Eivind & Ulberg, Randi (2019). How do adolescents with depression experience improvement in psychodynamic psychotherapy? A qualitative study. BMC Psychiatry. 19. doi: 10.1186/s12888-019-2080-0. Full text in Research Archive
  • Sønmez, Nasrettin; Romm, Kristin Lie; Østefjells, Tiril; Grande, Marit; Jensen, Lene Hunnicke & Hummelen, Benjamin [Show all 9 contributors for this article] (2019). Cognitive behavior therapy in early psychosis with a focus on depression and low self-esteem: A randomized controlled trial. Comprehensive Psychiatry. ISSN 0010-440X. 97. doi: 10.1016/j.comppsych.2019.152157. Full text in Research Archive
  • Weibell, Melissa Anne E; Johannessen, Jan Olav; Auestad, Bjørn Henrik; Bramness, Jørgen Gustav; Brønnick, Kolbjørn Kallesten & Haahr, Ulrik [Show all 17 contributors for this article] (2019). Early substance use cessation improves cognition-10 years outcome in first-episode psychosis patients. Frontiers in Psychiatry. 10. doi: 10.3389/fpsyt.2019.00495. Full text in Research Archive
  • Værnes, Tor Gunnar; Røssberg, Jan Ivar & Møller, Paul (2019). Anomalous self-experiences are strongly associated with negative symptoms in a clinical high-risk for psychosis sample. Comprehensive Psychiatry. ISSN 0010-440X. 93, p. 65–72. doi: 10.1016/j.comppsych.2019.07.003. Full text in Research Archive
  • Værnes, Tor Gunnar; Røssberg, Jan Ivar & Møller, Paul (2018). Anomalous self-experiences: markers of schizophrenia vulnerability or symptoms of depersonalization disorder? A phenomenological investigation of two cases. Psychopathology. ISSN 0254-4962. 51(3), p. 198–209. doi: 10.1159/000488462. Full text in Research Archive
  • Gardsjord, Erlend Strand; Romm, Kristin Lie; Røssberg, Jan Ivar; Friis, Svein; Barder, Helene & Evensen, Julie Horgen [Show all 17 contributors for this article] (2018). Depression and functioning are important to subjective quality of life after a first episode psychosis. Comprehensive Psychiatry. ISSN 0010-440X. 86, p. 107–114. doi: 10.1016/j.comppsych.2018.07.014. Full text in Research Archive
  • Røberg, Liv; Nilsen, Liv & Røssberg, Jan Ivar (2018). How do men with severe sexual and physical childhood traumatization experience trauma-stabilizing group treatment? A qualitative study. European Journal of Psychotraumatology. 13(9). doi: 10.1080/20008198.2018.1541697. Full text in Research Archive
  • Gardsjord, Erlend Strand; Romm, Kristin Lie; Røssberg, Jan Ivar; Friis, Svein; Barder, Helene & Evensen, Julie Horgen [Show all 18 contributors for this article] (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. Schizophrenia Research. ISSN 0920-9964. 193, p. 364–369. doi: 10.1016/j.schres.2017.07.006. Full text in Research Archive
  • Østefjells, Tiril; Lystad, June Ullevoldsæter; Berg, Akiah Ottesen; Hagen, Roger; Loewy, R & Sandvik, Leiv [Show all 8 contributors for this article] (2017). Metacognitive beliefs mediate the effect of emotional abuse on depressive and psychotic symptoms in severe mental disorders. Psychological Medicine. ISSN 0033-2917. 47(13), p. 2323–2333. doi: 10.1017/S0033291717000848. Full text in Research Archive
  • Østefjells, Tiril; Melle, Ingrid; Aminoff, Sofie Ragnhild; Hellvin, Tone; Hagen, Roger & Lagerberg, Trine Vik [Show all 8 contributors for this article] (2017). An exploration of metacognitive beliefs and thought control strategies in bipolar disorder. Comprehensive Psychiatry. ISSN 0010-440X. 73, p. 84–92. doi: 10.1016/j.comppsych.2016.11.008. Full text in Research Archive
  • Dahl, Hanne-Sofie Johnsen; Ulberg, Randi; Marble, Alice Ruth; Gabbard, Glen O.; Røssberg, Jan Ivar & Høglend, Per Andreas (2017). Beyond the Statistics: A Case Comparison Study of Victor and Tim. Psychoanalytic psychology. ISSN 0736-9735. 34(4), p. 461–477. doi: 10.1037/pap0000085. Full text in Research Archive
  • Melle, Ingrid; Johannessen, Jan Olav; Haahr, Ulrik H.; Hegelstad, Wenche; Joa, Inge & Langeveld, Johannes H. [Show all 15 contributors for this article] (2017). Causes and predictors of premature death in first-episode schizophrenia spectrum disorders. World Psychiatry. ISSN 1723-8617. 16(2), p. 217–218. doi: 10.1002/wps.20431. Full text in Research Archive
  • Langeveld, Johannes H.; Bjørkly, Stål; Evensen, Julie Horgen; Joa, Inge; Johannessen, Jan Olav & Larsen, Tor Ketil [Show all 15 contributors for this article] (2017). A 10-year follow-up study of violent victimization in first episode psychosis : risk and protective factors. Psychiatry Research. ISSN 0165-1781. 259(January), p. 545–549. doi: 10.1016/j.psychres.2017.11.013. Full text in Research Archive
  • Haahr, Ulrik Helt; Larsen, Tor Ketil; Simonsen, Erik; Rund, Bjørn Rishovd; Joa, Inge & Røssberg, Jan Ivar [Show all 16 contributors for this article] (2016). Relation between premorbid adjustment, duration of untreated psychosis and close interpersonal trauma in first-episode psychosis. Early Intervention in Psychiatry. ISSN 1751-7885. 12(3), p. 316–323. doi: 10.1111/eip.12315. Full text in Research Archive

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  • Ulberg, Randi; Wilberg, Theresa; Dammen, Toril; Evensen, Julie Horgen; Osnes, Kåre & Røssberg, Jan Ivar (2026). Psykoterapi må ha en sentral plass i psykiatrien. Tidsskrift for Den norske legeforening (Tidsskriftet). ISSN 0029-2001. 146. Full text in Research Archive
  • Bø, Ragnhild; Røssberg, Jan Ivar; Klovning, Atle; Landrø, Nils Inge; Hagen, Hallvard Solbø & Andreassen, Ole [Show all 7 contributors for this article] (2026). Forskning i allmennpraksis er nødvendig og etterspurt – men har mange utfordringer. Dagens medisin. ISSN 1501-4290. Full text in Research Archive
  • Johnsen, Erik; Andreassen, Ole; Melle, Ingrid; Røssberg, Jan Ivar; Weibell, Melissa Anne Elin Authen & Kroken, Rune Andreas (2025). Antipsykotika har god effekt ved psykoselidelser. Tidsskrift for Den norske legeforening (Tidsskriftet). ISSN 0029-2001. 145(8). doi: 10.4045/tidsskr.25.0271. Full text in Research Archive
  • Strandberg, Ragnhild Bjarkøy; Nilsen, Roy Miodini; Pouwer, Francois; Igland, Jannicke; Røssberg, Jan Ivar & Jenum, Anne Karen [Show all 8 contributors for this article] (2025). Associations of diabetes duration with depression, anxiety and insomnia in people with type 2 diabetes mellitus. Full text in Research Archive
  • Lien, Lars; Halvorsen, Niclas; Larsson, Anna Ulrika; Røssberg, Jan Ivar; Shaygani, Shahram & Weibell, Melissa Anne Elin Authen [Show all 9 contributors for this article] (2025). Antipsykotika virker. 145(7). doi: 10.4045/tidsskr.25.0273. Full text in Research Archive
  • Sollund, Adrian; Røssberg, Jan Ivar & Valeur, Jørgen (2025). Antidepressiva: Nye sjokkfunn. [Internet]. Dagbladet.no. Full text in Research Archive
  • Strandberg, Ragnhild Bjarkøy; Nilsen, Roy Miodini; Pouwer, Francois; Igland, Jannicke; Røssberg, Jan Ivar & Jenum, Anne Karen [Show all 8 contributors for this article] (2024). Associations of diabetes duration with anxiety, depression, and insomnia in people with type 2 diabetes. Full text in Research Archive
  • Røssberg, Jan Ivar & Bjåstad, Jon Fauskanger (2024). Frekvensen av kognitiv atferdsterapi i behandlingen av depressive lidelser. Er hyppigere bedre? Tidsskrift for kognitiv terapi. ISSN 1504-3142. Full text in Research Archive
  • Tørmoen, Anita Johanna; Røssberg, Jan Ivar; Aasland, Line & Mehlum, Lars (2024). SINCERITY WITH A CATCH: YOUNG ADULTS EARLIER TREATED FOR SELF-HARM LOOKING BACK AT THEIR SOCIAL MEDIA EXPERIENCES. Full text in Research Archive
  • Buhl, Esben Selmer; Igland, Jannicke; Forster, Rachel Bedenis; Jenum, Anne Karen; Strandberg, Ragnhild Bjarkøy & Berg, Tore Julsrud [Show all 8 contributors for this article] (2023). Prediction of mortality and validation of the ATC-code based Rx-risk comorbidity index in the “Outcomes & Multi-Morbidity In Type 2 diabetes” (OMIT) cohort. Full text in Research Archive
  • Landrø, Nils Inge; Harmer, Catherine; Blackwell, Simon E.; Bø, Ragnhild; Dawson, Gerry & Goodwin, Guy [Show all 16 contributors for this article] (2023). Combining antidepressants and attention bias modification in primary health care (DEPTREAT): Protocol for a pragmatic randomized controlled trial. Contemporary Clinical Trials. ISSN 1551-7144. 133. doi: 10.1016/j.cct.2023.107326. Full text in Research Archive
  • Oddli, Hanne Berit Weie; Nissen-Lie, Helene, Amundsen; Røssberg, Jan Ivar; Schanche, Elisabeth & Karlsson, Bengt Eirik (2023). Runderbordssamtale om endring. Full text in Research Archive
  • Igland, Jannicke; Forster, Rachel Bedenis; Jenum, Anne Karen; Strandberg, Ragnhild Bjarkøy; Berg, Tore Julsrud & Røssberg, Jan Ivar [Show all 8 contributors for this article] (2022). The validity of the Rx-risk comorbidity index among adults in the Outcomes & Multimorbidity in Type 2 diabetes cohort (OMIT). Full text in Research Archive
  • Kvam, Tor-Morten; Goksøyr, Ivar; Stewart, Lowan H.; Repantis, Dimitris; Røssberg, Jan Ivar & Andreassen, Ole (2022). Study protocol for “MDMA-assisted therapy as a treatment for major depressive disorder: A proof of principle study”. Frontiers in Psychiatry. 13. doi: 10.3389/fpsyt.2022.954388. Full text in Research Archive
  • Conejo-Cerón, Sonia; Taubner, Svenja; Heinonen, Erkki; Adler, Asta; Barkauskiene, Rasa & Giacomo, Dina Di [Show all 21 contributors for this article] (2021). Mediators in Psychological Treatments for Anxiety and Depression in Adolescents and Young People: A Protocol of a Systematic Review. Frontiers in Psychology. 12, p. 1–7. doi: 10.3389/fpsyg.2021.708436. Full text in Research Archive
  • Røssberg, Jan Ivar & Halvorsen, Joar Øveraas (2020). Å satse på psykisk helse koster mer enn bare tomme ord. Aftenposten (morgenutg. : trykt utg.). ISSN 0804-3116. Full text in Research Archive
  • Lillenes, Ola; Ankersen, Roald & Røssberg, Jan Ivar (2019). Professor i psykiatri om regninger på 750.000: -Jeg har ikke ord! [Journal]. Fædrelandsvennen. Full text in Research Archive
  • Østefjells, Tiril; Melle, Ingrid; Romm, Kristin Lie; Sønmez, Nasrettin & Røssberg, Jan Ivar (2019). Metacognitive Beliefs in Psychosis: A 15-Month Follow Up Study. Full text in Research Archive
  • Lillenes, Ola & Røssberg, Jan Ivar (2019). Alvorlige psykiske lidelser – og alternativ behandling. 13/14-2019. Full text in Research Archive
  • Halvorsen, Joar Øveraas & Røssberg, Jan Ivar (2018). Dokumentasjonen for medisinsk behandling holder ikke. Stavanger Aftenblad. ISSN 0804-8991. p. 32–32. Full text in Research Archive
  • Halvorsen, Joar Øveraas & Røssberg, Jan Ivar (2018). Miljøterapi og medisiner bør ikke være et enten eller. Stavanger Aftenblad. ISSN 0804-8991. p. 38–38. Full text in Research Archive
  • Eielsen, Mikkel; Høstmælingen, Andreas Teisner; Nissen-Lie, Helene Amundsen; Wampold, Bruce E.; Røssberg, Jan Ivar & Ulvenes, Pål Gunnar (2018). Effect and effectiveness of Affect Phobia Therapy in treating persistent depressive disorder. Full text in Research Archive
  • Høstmælingen, Andreas Teisner; Eielsen, Mikkel; Nissen-Lie, Helene Amundsen; Wampold, Bruce E.; Røssberg, Jan Ivar & Ulvenes, Pål Gunnar (2018). Short and long term effects of combination treatment compared to psychotherapy alone in the treatment of persistent depressive disorder. Full text in Research Archive
  • Ulvenes, Pål Gunnar; Eielsen, Mikkel; Høstmælingen, Andreas Teisner; Nissen-Lie, Helene Amundsen; Røssberg, Jan Ivar & Wampold, Bruce E. (2018). Trajectories of change in persistent depressive disorders across two psychotherapeutic modalities. Full text in Research Archive
  • Røssberg, Jan Ivar & Bramness, Jørgen Gustav (2018). Antipsychotic drugs for more than two years? Tidsskrift for Den norske legeforening (Tidsskriftet). ISSN 0029-2001. doi: 10.4045/tidsskr.18.0844. Full text in Research Archive
  • Røssberg, Jan Ivar; Andreassen, Ole Andreas & Ilner, Stein E. Opjordsmoen (2017). Re: Psykiatriens indre konflikter eksponert. Tidsskrift for Den norske legeforening (Tidsskriftet). ISSN 0029-2001. 137(9), p. 594–595. doi: 10.4045/tidsskr.17.0288. Full text in Research Archive
  • Røssberg, Jan Ivar; Andreassen, Ole Andreas & Ilner, Stein E. Opjordsmoen (2017). Medisinfrie sykehusposter – et kunnskapsløst tiltak. Tidsskrift for Den norske legeforening (Tidsskriftet). ISSN 0029-2001. 137(6), p. 426–427. doi: 10.4045/tidsskr.17.0091. Full text in Research Archive
  • Løvgren, André; Nilsen, Liv; Engebretsen, Eivind; Røssberg, Jan Ivar & Ulberg, Randi (2017). Adolescents’ experience of change in psychodynamic therapy; a qualitative study. Full text in Research Archive

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Published Apr. 13, 2011 2:54 PM - Last modified July 31, 2026 2:17 PM