Blar i Faculty of Psychology på forfatter "Løberg, Else-Marie"
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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 ... -
Antidepressive Effectiveness of Amisulpride, Aripiprazole, and Olanzapine in Patients with Schizophrenia Spectrum Disorders: A Secondary Outcome Analysis of a Pragmatic, Randomized Trial (BeSt InTro)
Kjelby, Eirik; Gjestad, Rolf; Fathian, Farivar; Sinkeviciute, Igne; Alisauskiene, Renata; Anda, Liss; Løberg, Else-Marie; Reitan, Solveig Klæbo; Joa, Inge; Larsen, Tor Kjetil; Rettenbacher, Maria; Berle, Jan Øystein; Fasmer, Ole Bernt; Kroken, Rune Andreas; Johnsen, Erik (Journal article; Peer reviewed, 2023)Background Depressive symptoms are frequent in schizophrenia and associated with a poorer outcome. Currently, the optimal treatment for depressive symptoms in schizophrenia remains undetermined. Amisulpride, aripiprazole, ... -
The association between cytokines and psychomotor speed in a spectrum of psychotic disorders: A longitudinal study
Larsen, Jeanette Brun; Reitan, Solveig Merete Klæbo; Løberg, Else-Marie; Rettenbacher, Maria; Bruserud, Øystein; Larsen, Tor Ketil; Anda, Liss Gøril; Bartz-Johannessen, Christoffer; Johnsen, Erik; Kroken, Rune Andreas (Journal article, 2021)Background In schizophrenia, impaired psychomotor speed is a common symptom predicting worse functional outcome. Inflammation causes changes in white matter integrity, which may lead to reduced psychomotor speed. Therefore, ... -
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 ... -
Cognitive change and antipsychotic medications: Results from a pragmatic rater-blind RCT
Anda, Liss; Johnsen, Erik; Kroken, Rune A.; Joa, Inge; Rettenbacher, Maria; Løberg, Else-Marie (Journal article; Peer reviewed, 2021)Cognitive impairment is a core aspect of psychotic disorders and difficult to treat. Atypical antipsychotics (AAs) might have differential effects on cognitive impairment, but rigid study designs and selective sampling ... -
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 ... -
Does drug use affect the efficacy of amisulpride, aripiprazole and olanzapine in patients with schizophrenia spectrum disorders? Results from a pragmatic, randomised study
Alisauskiene, Renata; Johnsen, Erik; Gjestad, Rolf; Kroken, Rune Andreas; Kjelby, Eirik; Sinkeviciute, Igne; Fathian, Farivar; Joa, Inge; Reitan, Solveig Klæbo; Rettenbacher, Maria; Løberg, Else-Marie (Journal article; Peer reviewed, 2023)Objectives Drug use is prevalent in patients with schizophrenia spectrum disorders (SSD) but there is limited knowledge about the influence of drug use on the effectiveness of antipsychotic medication. This secondary ... -
Dynamic Functional Connectivity Patterns in Schizophrenia and the Relationship With Hallucinations
Weber, Sarah; Johnsen, Erik; Kroken, Rune Andreas; Løberg, Else-Marie; Kandilarova, Sevdalina; Stoyanov, Drozdstoy; Kompus, Kristiina; Hugdahl, Kenneth (Journal article; Peer reviewed, 2020)There is a wealth of evidence showing aberrant functional connectivity (FC) in schizophrenia but with considerable variability in findings across studies. Dynamic FC is an extension of traditional static FC, in that such ... -
Glutamate- and GABA-Modulated Connectivity in Auditory Hallucinations—A Combined Resting State fMRI and MR Spectroscopy Study
Weber, Sarah; Hjelmervik, Helene; Craven, Alexander R.; Johnsen, Erik; Kroken, Rune Andreas; Løberg, Else-Marie; Ersland, Lars; Kompus, Kristiina; Hugdahl, Kenneth (Journal article; Peer reviewed, 2021)Background: Auditory verbal hallucinations (AVH) have been linked to aberrant interhemispheric connectivity between the left and the right superior temporal gyrus (STG), labeled the interhemispheric miscommunication theory. ... -
How do young adults experience and understand the process of developing a first episode of psychosis? A qualitative exploration
Hansen, Hege Almeland; Stige, Signe Hjelen; Davidson, Larry; Løberg, Else-Marie; Veseth, Marius (Journal article; Peer reviewed, 2023)Background Psychosis is a condition which often starts early in life and leaves a significant mark on a young person’s life. It is usually regarded and discussed from a professional point of view. This study sheds light ... -
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 ... -
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; Craven, Alexander R.; 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 ... -
Negative valence of hallucinatory voices as predictor of cortical glutamatergic metabolite levels in schizophrenia patients
Hjelmervik, Helene; Craven, Alexander R.; Johnsen, Erik; Kompus, Kristiina; Bless, Josef Johann; Sinkeviciute, Igne; Kroken, Rune Andreas; Løberg, Else-Marie; Ersland, Lars; Grüner, Eli Renate; Sommer, Iris E.; Hugdahl, Kenneth Jan (Journal article; Peer reviewed, 2021)Objectives Negative emotional valence of auditory verbal hallucinations (AVHs) in schizophrenia can be a source of distress and is considered a strong predictor of illness severity. Previous studies have found glutamate ... -
Neural activation in the ventromedial prefrontal cortex precedes conscious experience of being in or out of a transient hallucinatory state
Hugdahl, Kenneth; Craven, Alexander R.; Johnsen, Erik; Ersland, Lars; Stoyanov, Drozdstoy; Kandilarova, Sevdalina; Sandøy, Lydia Brunvoll; Kroken, Rune A.; Løberg, Else-Marie; Sommer, Iris E. (Journal article; Peer reviewed, 2022)Background and Hypotheses Auditory verbal hallucinations (AVHs) is not only a common symptom in schizophrenia but also observed in individuals in the general population. Despite extensive research, AVHs are poorly understood, ... -
‘Not at all what I had expected’: Discontinuing treatment with extended-release naltrexone (XR-NTX): A qualitative study
Brenna, Ida Halvorsen; Marciuch, Anne; Birkeland, Bente; Veseth, Marius; Røstad, Bente; Løberg, Else-Marie; Solli, Kristin Klemmetsby; Tanum, Lars Håkon Reiestad; Weimand, Bente (Journal article; Peer reviewed, 2022)Background: Extended-release naltrexone (XR-NTX), an opioid antagonist, has demonstrated equal treatment outcomes, in terms of safety, opioid use, and retention, to the recommended OMT medication buprenorphine. However, ... -
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 ...