Academic article
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Iphigenia Hellen; Sofie Galtung Døsvig; Berit Eidem Liseth
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Liv Eggset Falkenberg; René Westerhausen; Alexander Richard Craig-Craven
et al. (2014). Impact of glutamate levels on neuronal response and cognitive abilities in schizophrenia. (external link)
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Else-Marie Løberg; Hugo A Jørgensen; Rune Kroken
et al. (2015). Auditory verbal hallucinations reflect stable auditory attention deficits: A prospective study. (external link)
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Nina Mørkved; Erik Johnsen; Rune Andreas Kroken
et al. (2022). Impact of childhood trauma on antipsychotic effectiveness in schizophrenia spectrum disorders: A prospective, pragmatic, semi-randomized trial. (external link)
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Helene Hjelmervik; Alexander Richard Craig-Craven; Erik Johnsen
et al. (2021). Negative valence of hallucinatory voices as predictor of cortical glutamatergic metabolite levels in schizophrenia patients. (external link)
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Eirik Kjelby; Rolf Gjestad; Igne Sinkeviciute
et al. (2018). Trajectories of depressive symptoms in the acute phase of psychosis: Implications for treatment. (external link)
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Lena Antonsen Stabell; Erik Johnsen; Rune Andreas Kroken
et al. (2023). Clinical insight among persons with schizophrenia spectrum disorders treated with amisulpride, aripiprazole or olanzapine: a semi-randomised trial. (external link)
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Else-Marie Løberg; Kenneth Hugdahl
(2002). Functional brain asymmetry and attentional modulation in young and stabilised schizophrenic patients: A dichotic listening study. (external link)
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Petter Andreas Ringen; Ragnar Nesvåg; Siri Helle
et al. (2016). Premorbid cannabis use is associated with more symptoms and poorer functioning in schizophrenia spectrum disorder. (external link)
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Else-Marie Løberg; Merethe Nygård; Jan Øystein Berle
et al. (2012). An fMRI study of neuronal activation in schizophrenia patients with and without previous cannabis use. (external link)
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Jeanette Brun Larsen; Solveig Merete Klæbo Reitan; Else-Marie Løberg
et al. (2021). The association between cytokines and psychomotor speed in a spectrum of psychotic disorders: A longitudinal study. (external link)
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Erik Johnsen; Rune Kroken; Else-Marie Løberg
et al. (2011). Sexual dysfunction and hyperprolactinemia in male psychotic in-patients: a cross-sectional study. (external link)
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Ieva Leskauskaite; Anja Torsvik; Christoffer Bartz-Johannessen
et al. (2025). Sex differences in the peripheral levels of cytokines during 12-month antipsychotic treatment in a drug-naïve schizophrenia spectrum cohort. (external link)
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Lars T. Fadnes; Christer Frode Aas; Jørn Henrik Vold
et al. (2019). Integrated treatment of hepatitis C virus infection among people who inject drugs: study protocol for a randomised controlled trial (INTRO-HCV). (external link)
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Clara Lucas Guerra; Jørn Henrik Vold; Christer Frode Aas
et al. (2025). Associations between happiness with social factors and opioid agonist therapy among people who inject drugs. (external link)
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Kristian Varden Gjerde; Christoffer Bartz-Johannessen; Else-Marie Løberg
et al. (2026). Neural and vascular cellular adhesion molecules are associated with cognitive function in patients with schizophrenia-spectrum disorders: A longitudinal study. (external link)
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Else-Marie Løberg; Hugo A Jørgensen; Rune Andreas Kroken
et al. (2014). Do auditory verbal hallucinations in the acute phase of psychosis reflect stable cognitive impairments seen also in a more stabilised clinical phase?. (external link)
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Lena Antonsen Stabell; Rolf Gjestad; Rune Andreas Kroken
et al. (2019). Predictors of treatment satisfaction in antipsychotic-naive and previously medicated patients with acute-phase psychosis. (external link)
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Renata Alisauskiene; Erik Johnsen; Rolf Gjestad
et al. (2023). Does drug use affect the efficacy of amisulpride, aripiprazole and olanzapine in patients with schizophrenia spectrum disorders? Results from a pragmatic, randomised study. (external link)
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Siri Helle; Petter Andreas Ringen; Ingrid Melle
et al. (2016). Cannabis use is associated with 3 years earlier onset of schizophrenia spectrum disorder in a naturalistic, multi-site sample (N = 1119). (external link)
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Kenneth Hugdahl; Alexander R. Craven; Erik Johnsen
et al. (2022). Neural Activation in the Ventromedial Prefrontal Cortex Precedes Conscious Experience of Being in or out of a Transient Hallucinatory State. (external link)
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Else-Marie Løberg; Hugo Arild Jørgensen; Kenneth Hugdahl
(2004). Dichotic listening in schizophrenic patients: effects of previous vs. ongoing auditory hallucinations. (external link)
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Erik Johnsen; Igne Sinkevicute; Else-Marie Løberg
et al. (2013). Hallucinations in acutely admitted patients with psychosis, and effectiveness of risperidone, olanzapine, quetiapine, and ziprasidone: a pragmatic, randomized study. (external link)
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Jan Øystein Berle; Else-Marie Løberg; Ole Bernt Fasmer
(2013). Does changing from a first generation antipsychotic (perphenazin) to a second generation antipsychotic (risperidone) alter brain activation and motor activity? A case report. (external link)
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Nina Mørkved; Dagfinn Winje; Anders Dovran
et al. (2018). Childhood trauma in schizophrenia spectrum disorders as compared to substance abuse disorders. (external link)
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Nina Mørkved; Mathilde Endsjø; Dagfinn Winje
et al. (2016). Childhood trauma in schizophrenia spectrum disorder as compared to other mental health Disorders. (external link)
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Kenneth Hugdahl; Else-Marie Løberg; Liv Eggset Falkenberg
et al. (2012). Auditory verbal hallucinations in schizophrenia as aberrant lateralized speech perception: Evidence from dichotic listening. (external link)
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Erik Johnsen; Farivar Fathian; Rune Andreas Kroken
et al. (2016). The serum level of C-reactive protein (CRP) is associated with cognitive performance in acute phase psychosis. (external link)
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Sarah Weber; Erik Johnsen; Rune Andreas Kroken
et al. (2020). Dynamic functional connectivity
patterns in schizophrenia and the
relationship with hallucinations. (external link)
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Erik Johnsen; Rolf Gjestad; Rune Kroken
et al. (2011). Cardiovascular risk in patients admitted for psychosis compared with findings from a population-based study. (external link)
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Else-Marie Løberg; Rolf Gjestad; Maj-Britt Rocio Posserud
et al. (2019). Psychosocial characteristics differentiate non-distressing and distressing voices in 10,346 adolescents. (external link)
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Lena Antonsen Stabell; Erik Johnsen; Rune Andreas Kroken
et al. (2026). Levels of and changes in psychosis symptoms and clinical insight: Exploring the impact of differential antipsychotic mechanisms. (external link)
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Ole Jørgen Scheie Lygren; Ronny Bjørnestad; Else-Marie Løberg
et al. (2019). Peer involvement and cross-sector efforts in establishing integrated treatment of hepatitis C virus infection for people with substance use disorders: experiences from Norway. (external link)
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Siri Helle; Else-Marie Løberg; Rolf Gjestad
et al. (2017). The positive link between executive function and lifetime cannabis use in schizophrenia is not explained by current levels of superior social cognition. (external link)
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Hege Hansen; Signe Hjelen Stige; Larry Davidson
et al. (2019). "Needing different things from different people" - a qualitative exploration of recovery in firstepisode psychosis.. (external link)
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Jørgen Gustav Bramness; Øystein Gundersen; Joar Guterstam
et al. (2012). Amphetamine-induced psychosis - a separate diagnostic entity or primary psychosis triggered in the vulnerable?. (external link)
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Beate Hatlelid Bø; Øyvind Heen Ottesen; Rolf Gjestad
et al. (2016). Patient satisfaction after acute admission for psychosis. (external link)
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Jørn Henrik Vold; Else-Marie Løberg; Christer Frode Aas
et al. (2022). Prevalence and correlates of suicide attempts in high-risk populations: a cross-sectional study among patients receiving opioid agonist therapy in Norway. (external link)
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Hege Almeland Hansen; Signe Hjelen Stige; Larry Davidson
et al. (2023). How do young adults experience and understand the process of developing a first episode of psychosis? A qualitative exploration. (external link)
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Liv Eggset Falkenberg; René Westerhausen; Erik Johnsen
et al. (2020). Hallucinating schizophrenia patients have longer left arcuate fasciculus fiber tracks: a DTI tractography study. (external link)
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Farivar Fathian; Else-Marie Løberg; Rolf Gjestad
et al. (2018). Associations between C-reactive protein levels and cognition during the first 6 months after acute psychosis. (external link)
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Liss Gøril Anda-Ågotnes; Kolbjørn Selvåg Brønnick; Erik Johnsen
et al. (2016). The course of neurocognitive changes in acute psychosis: Relation to symptomatic improvement. (external link)
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Katherine E. Burdick; Caitlin E. Millett; Manuela Russo
et al. (2020). The association between lithium use and neurocognitive performance in patients with bipolar disorder. (external link)
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Eirik Kjelby; Rolf Gjestad; Farivar Fathian
et al. (2023). Antidepressive Effectiveness of Amisulpride, Aripiprazole, and Olanzapine in Patients with Schizophrenia Spectrum Disorders: A Secondary Outcome Analysis of a Pragmatic, Randomized Trial (BeSt InTro). (external link)
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Else-Marie Løberg
(2010). Fra biologisk forskning til klinisk praksis nytt om cannabis og schizofreni. (external link)
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Eirik Kjelby; Igne Sinkeviciute; Rolf Gjestad
et al. (2015). Suicidality in schizophrenia spectrum disorders: The relationship to hallucinations and persecutory delusions. (external link)
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Else-Marie Løberg; Hugo Arild Jørgensen; Kenneth Hugdahl
(1999). Hemispheric asymmetry in schizophrenia: A «dual deficits» model. (external link)
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Kristiina Kompus; Liv Eggset Falkenberg; Josef J Bless
et al. (2013). The role of the primary auditory cortex in the neural mechanism of auditory verbal hallucinations. (external link)
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Sarah Weber; Helene Hjelmervik; Alexander Richard Craig-Craven
et al. (2021). Glutamate- and GABA-Modulated Connectivity in Auditory Hallucinations—A Combined Resting State fMRI and MR Spectroscopy Study. (external link)
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EM Loberg; Else-Marie Løberg; HA Jorgensen
et al. (2006). Positive symptoms and duration of illness predict functional laterality and attention modulation in schizophrenia. (external link)
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Marie Sæthre Grøtting; Else-Marit Løberg; Hans-Olaf Johannessen
et al. (2016). Reseksjon for oesophaguscancer - komplikasjoner og overlevelse. (external link)
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Jørn Henrik Vold; Elinor Margrethe Chelsom Vogt; Anne Taraldsen Heldal
et al. (2025). Low Testosterone Among Males in Opioid Agonist Therapy and Its Association With Fatigue and Psychological Distress. (external link)
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Nina Mørkved; Pia Sophie Bryntesen; Ida Marie Eggen
et al. (2025). The relationship between childhood maltreatment and trauma and psychosis is not moderated by parental mental health. (external link)
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Renata Alisauskiene; Else-Marie Løberg; Rolf Gjestad
et al. (2019). The influence of substance use on the effectiveness of antipsychotic medication: a prospective, pragmatic study. (external link)
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Helene Hjelmervik; Alexander Richard Craig-Craven; Igne Sinkeviciute
et al. (2019). Intra-Regional Glu-GABA vs Inter-Regional Glu-Glu Imbalance: A 1H-MRS Study of the Neurochemistry of Auditory Verbal Hallucinations in Schizophrenia.. (external link)
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Anja Vaskinn; Eirik Irgens Johnsen; Hugo A Jørgensen
et al. (2013). Prospective and concurrent correlates of emotion perception in psychotic disorders: A naturalistic, longitudinal study of neurocognition, affective blunting and avolition. (external link)
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Nina Mørkved; Erik Johnsen; Rune Andreas Kroken
et al. (2020). Does childhood trauma influence cognitive functioning in schizophrenia? The association of childhood trauma and cognition in schizophrenia spectrum disorders.. (external link)
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Erik Johnsen; Hugo A Jørgensen; Rune Kroken
et al. (2013). Neurocognitive effectiveness of quetiapine, olanzapine, risperidone, and ziprasidone: A pragmatic, randomized trial. (external link)
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Kenneth Hugdahl; Alexander Richard Craig-Craven; Merethe Nygård
et al. (2015). Glutamate as a mediating transmitter for auditory hallucinations in schizophrenia: A 1H MRS study.. (external link)
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Fatemeh Chalabianloo; Lars T. Fadnes; Gudrun Høiseth
et al. (2021). Subjective symptoms and serum methadone concentrations: what should guide dose adjustments in methadone maintenance treatment? A naturalistic cohort study from Norway. (external link)
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Magda L. Dumitru; Erik Johnsen; Rune Andreas Kroken
et al. (2024). Widespread asymmetries of amygdala nuclei predict auditory verbal hallucinations in schizophrenia. (external link)
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Kjersti Karlsen; Else-Marie Løberg
(2012). Psykose hos unge: Gjenkjenning og behandling. (external link)
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Renata Alisauskiene; Erik Johnsen; Rolf Gjestad
et al. (2021). The Influence of Substance Use on Side Effects of Olanzapine, Quetiapine, Risperidone, and Ziprasidone in Psychosis. (external link)
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Fatemeh Chalabianloo; Gudrun Høiseth; Jørn Henrik Vold
et al. (2022). Impact of liver fibrosis and clinical characteristics on dose-adjusted serum methadone concentrations. (external link)
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Sanne Hoekstra; Christoffer Bartz-Johannessen; Igne Sinkeviciute
et al. (2021). Sex differences in antipsychotic efficacy and side effects in schizophrenia spectrum disorder: results from the BeSt InTro study. (external link)
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Siren Tønnesen; Tobias Kaufmann; Ann-Marie Glasø de Lange
et al. (2020). Brain age prediction reveals aberrant brain white matter in schizophrenia and bipolar disorder: A multisample diffusion tensor imaging study. (external link)
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Erik Johnsen; Kristina Aanesen; Sanjeevan Sriskandarajah
et al. (2013). QTc prolongation in patients acutely admitted to hospital for psychosis and treated with second generation antipsychotics. (external link)
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Lars T. Fadnes; Christer Frode Aas; Jørn Henrik Vold
et al. (2021). Integrated treatment of hepatitis C virus infection among people who inject drugs: A multicenter randomized controlled trial (INTRO-HCV). (external link)
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Ida Halvorsen Brenna; Anne Marciuch; Bente Birkeland
et al. (2021). ‘Not at all what I had expected’: Discontinuing treatment with extended-release naltrexone (XR-NTX): A qualitative study. (external link)
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Merethe Nygård; Tom Eichele; Else-Marie Løberg
et al. (2012). Patients with schizophrenia fail to up-regulate task-positive and down-regulate task-negative brain networks: An fMRI study using an ICA analysis approach. (external link)
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Clara Strauss; Kenneth Hugdahl; Flavie Waters
et al. (2017). The Beliefs about Voices Questionnaire - Revised: A factor structure from 450 participants. (external link)
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Nina Mørkved; Mathilde Paulina Endsjø; Dagfinn Winje
et al. (2016). Childhood trauma in schizophrenia spectrum disorder as compared to other mental health disorders. (external link)
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Erik Johnsen; Hugo A Jørgensen; Rune Kroken
et al. (2011). Neurocognitive effectiveness of quetiapine, olanzapine, risperidone, and ziprasidone: a pragmatic, randomized trial. (external link)
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Farivar Fathian; Rolf Gjestad; Rune Andreas Kroken
et al. (2022). Association between C-reactive protein levels and antipsychotic treatment during 12 months follow-up period after acute psychosis. (external link)
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Ida Halvorsen Brenna; Karin Merethe Waleur; Jurate Saltyte Benth
et al. (2024). Patients with Opioid Use Disorder Choosing Treatment with Extended-Release Naltrexone: A 6-Month Naturalistic Study. (external link)
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Liss Gøril Anda-Ågotnes; Kolbjørn Kallesten Brønnick; Jan Olav Johannessen
et al. (2019). Cognitive profile in ultra high risk for psychosis and schizophrenia: A comparison using coordinated norms. (external link)
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Christer Frode Aas; Jørn Henrik Vold; Rolf Gjestad
et al. (2021). Substance use and symptoms of mental health disorders: a prospective cohort of patients with severe substance use disorders in Norway. (external link)
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Else-Marie Løberg; Kenneth Hugdahl
(2009). Cannabis use and cognition in schizophrenia. (external link)
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Jill Kristin Bjarke; Helga Nødland Gjerde; Hugo A Jørgensen
et al. (2022). Akathisia and atypical antipsychotics. Relation to suicidality, agitation and depression in a clinical trial. (external link)
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Siri Helle; Rolf Gjestad; Erik Johnsen
et al. (2014). Cognitive changes in patients with acute phase psychosis - Effects of illicit drug use. (external link)
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Justyna Beresniewicz; Alexander R. Craven; Kenneth Hugdahl
et al. (2021). White matter microstructural differences between hallucinating and non-hallucinating schizophrenia spectrum patients. (external link)
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Erik Johnsen; Rune Andreas Kroken; Else-Marie Løberg
et al. (2020). Amisulpride, aripiprazole, and olanzapine in patients with schizophrenia-spectrum disorders (BeSt InTro): a pragmatic, rater-blind, semi-randomised trial. (external link)
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Christer Frode Aas; Jørn Henrik Vold; Fatemeh Chalabianloo
et al. (2024). Effect of integrated hepatitis C virus treatment on psychological distress in people with substance use disorders. (external link)
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Eirik Kjelby; Hugo A Jørgensen; Rune Kroken
et al. (2011). Anti-depressive effectiveness of olanzapine, quetiapine, risperidone and ziprasidone: a pragmatic, randomized trial. (external link)
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Jill Kristin Bjarke; Igne Sinkeviciute; Rune Andreas Kroken
et al. (2020). Different response patterns in hallucinations and delusions to antipsychotic treatment. (external link)
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Roy Edgar Olsen; Rune Andreas Kroken; Sigmund Bjørhovde
et al. (2016). Influence of different second generation antipsychotics on the QTC interval: A pragmatic study. (external link)
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Nina Mørkved; Erik Johnsen; Rune Andreas Kroken
et al. (2024). Childhood trauma types in relation to antipsychotic effectiveness in schizophrenia spectrum disorders: A prospective, pragmatic, randomized controlled study. (external link)
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Christer Frode Aas; Jørn Henrik Vold; Svetlana Skurtveit
et al. (2020). Health-related quality of life of long-term patients receiving opioid agonist therapy: a nested prospective cohort study in Norway. (external link)
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Jørn Henrik Vold; Anne Halmøy; Fatemeh Chalabianloo
et al. (2023). Attention-deficit/hyperactivity disorder (ADHD) symptoms and their relation to diagnosed ADHD, sociodemographic characteristics, and substance use among patients receiving opioid agonist therapy: a Norwegian cohort study. (external link)
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Merethe Nygård; Else-Marie Løberg; Alexander Richard Craig-Craven
et al. (2013). Dichotic listening, executive functions and grey matter cortical volume in patients with schizophrenia and healthy controls. (external link)
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Silje Skrede; Jon Andsnes Berg; KJELL OVE FOSSAN
et al. (2021). Illicit substances detected through high-resolution MS analysis in urine samples are associated with greater symptom burden in patients with psychosis. (external link)
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Kristiina Kompus; Else-Marie Løberg; Maj-Britt Rocio Posserud
et al. (2015). Prevalence of auditory hallucinations in Norwegian adolescents: Results from a population-based study. (external link)
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Jørn Henrik Vold; Rolf Gjestad; Christer Frode Aas
et al. (2020). Impact of clinical and sociodemographic factors on fatigue among patients with substance use disorder: a cohort study from Norway for the period 2016–2020. (external link)
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Igne Sinkeviciute; Kenneth Jan Hugdahl; Christoffer Bartz-Johannessen
et al. (2021). Differential Effectiveness of Atypical Antipsychotics on Hallucinations: A Pragmatic Randomized Controlled Trial. (external link)
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Kenneth Hugdahl; Merethe Nygård; Liv Eggset Falkenberg
et al. (2014). Failure of attention focus and cognitive control in schizophrenia patients with auditory verbal hallucinations: Evidence from dichotic listening. (external link)
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Liss Anda; Erik Johnsen; Rune A. Kroken
et al. (2021). Cognitive change and antipsychotic medications: Results from a pragmatic rater-blind RCT. (external link)
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Jørn Henrik Vold; Fatemeh Chalabianloo; Christer Frode Aas
et al. (2021). Changes in substance use during outpatient treatment for substance use disorders: a prospective Norwegian cohort study from 2016 to 2020. (external link)
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Kenneth Hugdahl; Else-Marie Løberg; Merethe Nygård
(2009). Left temporal lobe structural and functional abnormality underlying auditory hallucinations in schizophrenia. (external link)
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Jørn Henrik Vold; Fatemeh Chalabianloo; Else-Marie Løberg
et al. (2023). The efficacy of integrated hepatitis C virus treatment in relieving fatigue in people who inject drugs: a randomized controlled trial. (external link)
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