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Browsing Bergen Open Research Archive by Author "Løberg, Else-Marie"

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Now showing items 1-19 of 19

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    • Amphetamine-induced psychosis - a separate diagnostic entity or primary psychosis triggered in the vulnerable? 

      Bramness, Jørgen G.; Gundersen, Øystein H.; Guterstam, Joar; Rognli, Eline B.; Konstenius, Maija; Løberg, Else-Marie; Medhus, Sigrid; Tanum, Lars; Franck, Johan (Peer reviewed; Journal article, 2012-12-05)
      Use of amphetamine and methamphetamine is widespread in the general population and common among patients with psychiatric disorders. Amphetamines may induce symptoms of psychosis very similar to those of acute schizophrenia ...
    • Anti-depressive effectiveness of olanzapine, quetiapine, risperidone and ziprasidone: a pragmatic, randomized trial 

      Kjelby, Eirik; Jørgensen, Hugo A.; Kroken, Rune A.; Løberg, Else-Marie; Johnsen, Erik (Peer reviewed; Journal article, 2011-08-31)
      Background: Efficacy studies indicate anti-depressive effects of at least some second generation antipsychotics (SGAs). The Bergen Psychosis Project (BPP) is a 24-month, pragmatic, industry-independent, randomized, head-tohead ...
    • Brain age prediction reveals aberrant brain white matter in schizophrenia and bipolar disorder: A multi-sample diffusion tensor imaging study 

      Tønnesen, Siren; Kaufmann, Tobias; de Lange, Ann-Marie Glasø; Richard, Geneviève; Nhat Trung, Doan; Alnæs, Dag; van der Meer, Dennis; Rokicki, Jaroslav; Moberget, Torgeir; Maximov, Ivan; Agartz, Ingrid; Aminoff, Sofie Ragnhild; Beck, Dani; Barch, Deanna M.; Beresniewicz, Justyna; Cervenka, Simon; Fatouros-Bergman, Helena; Craven, Alexander R.; Flyckt, Lena; Gurholt, Tiril Pedersen; Haukvik, Unn Kristin H.; Hugdahl, Kenneth; Johnsen, Erik; Jönsson, Erik Gunnar; Schizophrenia Project (KaSP), Karolinska; Kolskår, Knut-Kristian; Kroken, Rune Andreas; Lagerberg, Trine Vik; Løberg, Else-Marie; Nordvik, Jan Egil; Sanders, Anne-Marthe; Ulrichsen, Kristine Moe; Andreassen, Ole Andreas; Westlye, Lars Tjelta (Journal article; Peer reviewed, 2020)
      Background Schizophrenia (SZ) and bipolar disorder (BD) share substantial neurodevelopmental components affecting brain maturation and architecture. This necessitates a dynamic lifespan perspective in which brain aberrations ...
    • The cannabis pathway to non-affective psychosis may reflect less neurobiological vulnerability 

      Løberg, Else-Marie; Helle, Siri; Nygård, Merethe; Berle, Jan Øystein; Kroken, Rune; Johnsen, Erik (Peer reviewed; Journal article, 2014-11-18)
      There is a high prevalence of cannabis use reported in non-affective psychosis. Early prospective longitudinal studies conclude that cannabis use is a risk factor for psychosis, and neurochemical studies on cannabis have ...
    • Cognitive changes in patients with acute phase psychosis - Effects of illicit drug use 

      Helle, Siri; Gjestad, Rolf; Johnsen, Erik; Kroken, Rune; Jørgensen, Hugo A.; Løberg, Else-Marie (Peer reviewed; Journal article, 2014-12)
      Illicit drug use may influence cognition in non-affective psychosis. Previous studies have shown better cognition in psychosis with illicit drug use as compared to psychosis only. Possibly, illicit drug using patients have ...
    • 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 ...
    • A critical review of pro-cognitive drug targets in psychosis: convergence on myelination and inflammation 

      Kroken, Rune; Løberg, Else-Marie; Drønen, Tore; Grüner, Renate; Hugdahl, Kenneth; Kompus, Kristiina; Skrede, Silje; Johnsen, Erik (Peer reviewed; Journal article, 2014-02-04)
      Antipsychotic drugs have thus far focused on dopaminergic antagonism at the D2 receptors, as counteracting the hyperdopaminergia in nigrostriatal and mesolimbic projections has been considered mandatory for the antipsychotic ...
    • Does changing from a first generation antipsychotic (perphenazin) to a second generation antipsychotic (risperidone) alter brain activation and motor activity? A case report 

      Berle, Jan Øystein; Løberg, Else-Marie; Fasmer, Ole Bernt (Peer reviewed; Journal article, 2013-05-06)
      Background: In patients with schizophrenia, altered brain activation and motor activity levels are central features, reflecting cognitive impairments and negative symptoms, respectively. Newer studies using nonlinear methods ...
    • Hallucinations in acutely admitted patients with psychosis, and effectiveness of risperidone, olanzapine, quetiapine, and ziprasidone: a pragmatic, randomized study 

      Johnsen, Erik; Sinkeviciute, Igne; Løberg, Else-Marie; Kroken, Rune A.; Hugdahl, Kenneth; Jørgensen, Hugo A. (Peer reviewed; Journal article, 2013-09-30)
      Background Hallucinations are prevalent in schizophrenia and related psychotic disorders and may have severe consequences for the affected patients. Antipsychotic drug trials that specifically address the anti-hallucinatory ...
    • Impact of glutamate levels on neuronal response and cognitive abilities in schizophrenia 

      Falkenberg, Liv Eggset; Westerhausen, René; Craven, Alexander R.; Kroken, Rune A.; Løberg, Else-Marie; Specht, Karsten; Hugdahl, Kenneth (Peer reviewed; Journal article, 2014-04-02)
      Schizophrenia is characterized by impaired cognitive functioning, and brain regions involved in cognitive control processes show marked glutamatergic abnormalities. However, it is presently unclear whether aberrant neuronal ...
    • Integrated care of severe infectious diseases to people with substance use disorders; a systematic review 

      Vold, Jørn Henrik; Aas, Christer Frode; Leiva, Rafael Alexander Mo; Vickerman, Peter; Chalabianloo, Fatemeh; Løberg, Else-Marie; Johansson, Kjell Arne; Fadnes, Lars T. (Peer reviewed; Journal article, 2019)
      Background: Various integrated care models have been used to improve treatment completion of medications for chronic hepatitis B virus (HBV), chronic hepatitis C virus (HCV), Mycobacterium tuberculosis (TB), and Human ...
    • Integrated treatment of hepatitis C virus infection among people who inject drugs: study protocol for a randomised controlled trial (INTRO-HCV) 

      Fadnes, Lars T.; Aas, Christer Frode; Vold, Jørn Henrik; Ohldieck, Christian; Leiva, Rafael Alexander Mo; Chalabianloo, Fatemeh; Skurtveit, Svetlana; Lygren, Ole Jørgen; Dalgard, Olav; Vickerman, Peter; Midgard, Håvard; Løberg, Else-Marie; Johansson, Kjell Arne (Peer reviewed; Journal article, 2019-11-08)
      Background: A large proportion of people who inject drugs (PWID) living with hepatitis C virus (HCV) infection have not been treated. It is unknown whether inclusion of HCV diagnostics and treatment into integrated substance ...
    • Intra-Regional Glu-GABA vs Inter-Regional Glu-Glu Imbalance: A 1H-MRS Study of the Neurochemistry of Auditory Verbal Hallucinations in Schizophrenia. 

      Hjelmervik, Helene; Craig-Craven, Alexander Richard; Sinkeviciute, Igne; Johnsen, Erik; Kompus, Kristiina; Bless, Josef Johann; Kroken, Rune Andreas; Løberg, Else-Marie; Ersland, Lars; Gruner, Eli Renate; Hugdahl, Kenneth (Peer reviewed; Journal article, 2019-10-18)
      Glutamate (Glu), gamma amino-butyric acid (GABA), and excitatory/inhibitory (E/I) imbalance have inconsistently been implicated in the etiology of schizophrenia. Elevated Glu levels in language regions have been suggested ...
    • Left temporal lobe structural and functional abnormality underlying auditory hallucinations in schizophrenia 

      Hugdahl, Kenneth; Løberg, Else-Marie; Nygård, Merethe (Peer reviewed; Journal article, 2009-05-01)
      In this article, we have reviewed recent findings from our laboratory, originally presented in Hugdahl et al. (2008) . These findings reveal that auditory hallucinations in schizophrenia should best be conceptualized as ...
    • Peer involvement and cross-sector efforts in establishing integrated treatment of hepatitis C virus infection for people with substance use disorders: experiences from Norway 

      Lygren, Ole Jørgen Scheie; Bjørnestad, Ronny; Løberg, Else-Marie; Bonnier, Martine; Buljovcic, Vibeke Bråthen; Johansson, Kjell Arne; Fadnes, Lars Thore (Peer reviewed; Journal article, 2019-12-21)
      Background For people with opioid dependence in Norway, chronic hepatitis C virus (HCV) infections contribute to high mortality and high morbidity. Around 50% of patients in medically assisted rehabilitation (MAR) have ...
    • Prevalence of auditory hallucinations in Norwegian adolescents: Results from a population-based study 

      Kompus, Kristiina; Løberg, Else-Marie; Posserud, Maj-Britt Rocio; Lundervold, Astri (Peer reviewed; Journal article, 2015-05-12)
      Knowing the prevalence and characteristics of auditory verbal hallucinations (AVH) in adolescents is important for estimations of need for mental health care and assessment of psychosis risk. In this report we assess the ...
    • Psychosocial characteristics differentiate non-distressing and distressing voices in 10,346 adolescents 

      Løberg, Else-Marie; Gjestad, Rolf; Posserud, Maj-Britt Rocio; Kompus, Kristiina; Lundervold, Astri (Peer reviewed; Journal article, 2019)
      Adolescents hearing non-existent voices may be at risk for psychosis, but the prevalence of voice-hearing (VH) in the general population complicates clinical interpretations. Differentiating between VH with and without ...
    • The role of the primary auditory cortex in the neural mechanism of auditory verbal hallucinations 

      Kompus, Kristiina; Falkenberg, Liv Eggset; Bless, Josef J; Johnsen, Erik; Kroken, Rune; Kråkvik, Bodil; Larøi, Frank; Løberg, Else-Marie; Vedul-Kjelsås, Einar; Westerhausen, René; Hugdahl, Kenneth (Peer reviewed; Journal article, 2013-04-24)
      Auditory verbal hallucinations (AVHs) are a subjective experience of “hearing voices” in the absence of corresponding physical stimulation in the environment. The most remarkable feature of AVHs is their perceptual quality, ...
    • The serum level of C-reactive protein (CRP) is associated with cognitive performance in acute phase psychosis 

      Johnsen, Erik; Fathian, Farivar; Kroken, Rune A; Steen, Vidar M; Jørgensen, Hugo A; Gjestad, Rolf; Løberg, Else-Marie (Peer reviewed; Journal article, 2016-03-14)
      Background Inflammatory processes have been implicated in the etiology of schizophrenia and related psychoses, in which cognitive deficits represent core symptoms. The aim of the present study was to investigate possible ...

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