Blar i Bergen Open Research Archive på forfatter "Johannessen, Jan Olav"

Viser treff 1-11 av 11

    • Childhood trauma, antipsychotic medication, and symptom remission in first-episode psychosis 

      Ottesen, Akiah; Hegelstad, Wenche; Joa, Inge; Ilner, Stein E. Opjordsmoen; Rund, Bjørn Rishovd; Røssberg, Jan Ivar; Simonsen, Erik; Johannessen, Jan Olav; Larsen, Tor Ketil; Haahr, Ulrik H.; McGlashan, T.H.; Friis, Svein; Melle, Ingrid (Journal article; Peer reviewed, 2021)
      Background: To what extent psychotic symptoms in first-episode psychosis (FEP) with a history of childhood interpersonal trauma (CIT) are less responsive to antipsychotic medication is not known. In this longitudinal study, ...

    • Cognitive profile in ultra high risk for psychosis and schizophrenia: A comparison using coordinated norms 

      Anda-Ågotnes, Liss Gøril; Brønnick, Kolbjørn Kallesten; Johannessen, Jan Olav; Joa, Inge; Kroken, Rune Andreas; Johnsen, Erik; Rettenbacher, Maria; Fathian, Farivar; Løberg, Else-Marie (Peer reviewed; Journal article, 2019-10-01)
      Background: Cognitive impairment is not only a core aspect of schizophrenia but also commonly observed in help-seeking youth at ultra high risk for psychosis (UHR), with potential implications for prognosis and individualized ...

    • Early substance use cessation improves cognition-10 years outcome in first-episode psychosis patients 

      Weibell, Melissa Anne E; Johannessen, Jan Olav; Auestad, Bjørn Henrik; Bramness, Jørgen Gustav; Brønnick, Kolbjørn Kallesten; Haahr, Ulrik; Joa, Inge; Larsen, Tor Ketil; Melle, Ingrid; Ilner, Stein E. Opjordsmoen; Rund, Bjørn Rishovd; Røssberg, Jan Ivar; Simonsen, Erik; Vaglum, Per; Stain, Helen J.; Friis, Svein; Hegelstad, Wenche (Peer reviewed; Journal article, 2019-07-12)
      Background: Cognitive impairment may be a risk factor for, as well as a consequence of, psychosis. Non-remitting symptoms, premorbid functioning, level of education, and socioeconomic background are known correlates. A ...

    • The Effect of Intensive Implementation Support on Fidelity for Four Evidence‑Based Psychosis Treatments: A Cluster Randomized Trial 

      Ruud, Torleif; Drake, Robert E.; Saltyte Benth, Jurate; Drivenes, Karin; Hartveit, Miriam; Heiervang, Kristin Sverdvik; Høifødt, Tordis Sørensen; Haaland, Vegard Øksendal; Joa, Inge; Johannessen, Jan Olav; Johansen, Karl Johan; Stensrud, Bjørn; Haugom, Espen Woldsengen; Clausen, Hanne Kristin; Biringer, Eva Aaker; Bond, Gary R. (Journal article; Peer reviewed, 2021)
      Purpose Service providers need effective strategies to implement evidence-based practices (EBPs) with high fidelity. This study aimed to evaluate an intensive implementation support strategy to increase fidelity to EBP ...

    • "Everyone Needs a Friend Sometimes" - social predictors of long-term remission in first episode psychosis 

      Bjørnestad, Jone Ravndal; Joa, Inge; Larsen, Tor Ketil; Langeveld, Johannes H.; Davidson, Larry; Hegelstad, Wenche; Anda-Ågotnes, Liss Gøril; Veseth, Marius; Melle, Ingrid; Johannessen, Jan Olav; Brønnick, Kolbjørn Selvåg (Peer reviewed; Journal article, 2016-10-04)
      Background: Predictors of long-term symptomatic remission are crucial to the successful tailoring of treatment in first episode psychosis. There is lack of studies distinguishing the predictive effects of different social ...

    • One-year outcome and adherence to pharmacological guidelines in first-episode schizophrenia: Results from a consecutive cohort study 

      Drosos, Petros; Brønnick, Kolbjørn Kallesten; Joa, Inge; Johannessen, Jan Olav; Johnsen, Erik; Kroken, Rune Andreas; Stain, Helen J.; Hegelstad, Wenche; Larsen, Tor Ketil (Journal article; Peer reviewed, 2020)
      Background Remission in schizophrenia is difficult to achieve. Antipsychotic drugs are critical in the treatment of schizophrenia. International guidelines for the pharmacological treatment of schizophrenia recommend a ...

    • Psychiatric patients’ attitudes towards being hospitalized: a national multicentre study in Norway 

      Hustoft, Kjetil; Larsen, Tor Ketil; Brønnick, Kolbjørn Kallesten; Joa, Inge; Johannessen, Jan Olav; Ruud, Torleif (Journal article; Peer reviewed, 2022-11-21)
      Background: The aim of the study was to explore patients’ attitudes towards voluntary and involuntary hospitalization in Norway, and predictors for involuntary patients who wanted admission. Methods: A multi-centre study ...

    • Psychotherapy in psychosis: Experiences of fully recovered service users 

      Bjørnestad, Jone Ravndal; Veseth, Marius; Davidson, Larry; Joa, Inge; Johannessen, Jan Olav; Larsen, Tor Ketil; Melle, Ingrid; Hegelstad, Wenche (Peer reviewed; Journal article, 2018-09-04)
      Background: Despite the evidence of the importance of including service users’ views on psychotherapy after psychosis, there is a paucity of research investigating impact on full recovery. Objectives: To explore what ...

    • Social media and social functioning in psychosis: A systematic review 

      Bjørnestad, Jone Ravndal; Hegelstad, Wenche; Berg, Henrik; Davidson, Larry; Joa, Inge; Johannessen, Jan Olav; Melle, Ingrid; Stain, Helen J.; Pallesen, Ståle (Peer reviewed; Journal article, 2019-06-21)
      Background: Individuals with psychosis are heavy consumers of social media. It is unknown to what degree measures of social functioning include measures of online social activity. Objective: To examine the inclusion of ...

    • Typologies in GPs’ referral practice 

      Thorsen, Olav; Hartveit, Miriam; Johannessen, Jan Olav; Fosse, Lars; Eide, Geir Egil; Schulz, Jörn; Bærheim, Anders (Peer reviewed; Journal article, 2016-07-18)
      Background: GPs’ individual decisions to refer and the various ways of working when they refer are important determinants of secondary care use. The objective of this study was to explore and describe potential characteristics ...

    • “We all have a responsibility”: a narrative discourse analysis of an information campaign targeting help-seeking in first episode psychosis 

      Hansen, Hege; Stige, Signe Hjelen; Moltu, Christian; Johannessen, Jan Olav; Joa, Inge; Dybvig, Sveinung; Veseth, Marius (Peer reviewed; Journal article, 2019-05-09)
      Background: Intervening at an early stage of psychosis improves the chances of recovery from first-episode psychosis. However, people who are experiencing distress and early psychotic symptoms generally seem to delay seeking ...