• Effectiveness of second-generation antipsychotics: a naturalistic, randomized comparison of olanzapine, quetiapine, risperidone, and ziprasidone 

      Johnsen, Erik; Kroken, Rune A.; Wentzel-Larsen, Tore; Jørgensen, Hugo A. (Peer reviewed; Journal article, 2010-03-24)
      Background: No clear recommendations exist regarding which antipsychotic drug should be prescribed first for a patient suffering from psychosis. The primary aims of this naturalistic study were to assess the head-to-head ...
    • Geographical accessibility and duration of untreated psychosis: Distance as a determinant of treatment delay 

      Kvig, Erling Inge; Brinchmann, Beate; Moe, Cathrine Fredriksen; Nilssen, Steinar; Larsen, Tor Ketil; Sørgaard, Knut W. (Peer reviewed; Journal article, 2017-05-10)
      Background: The duration of untreated psychosis is determined by both patient and service related factors. Few studies have considered the geographical accessibility of services in relation to treatment delay in early ...
    • Neurocognitive profiles in treatment-resistant bipolar I and bipolar II disorder depression 

      Kessler, Ute; Schøyen, Helle Kristine; Andreassen, Ole Andreas; Eide, Geir Egil; Hammar, Åsa; Malt, Ulrik F.; Ødegaard, Ketil Joachim; Morken, Gunnar; Sundet, Kjetil; Vaaler, Arne E. (Peer reviewed; Journal article, 2013-04-04)
      Background: The literature on the neuropsychological profiles in Bipolar disorder (BD) depression is sparse. The aims of the study were to assess the neurocognitive profiles in treatment-resistant, acutely admitted BD ...
    • Neurofeedback for the treatment of children and adolescents with ADHD: a randomized and controlled clinical trial using parental reports 

      Duric, Nezla Sehovic; Assmus, Jørg; Gundersen, Doris; Elgen, Irene Bircow (Peer reviewed; Journal article, 2012-08-10)
      Background: A randomized and controlled clinical study was performed to evaluate the use of neurofeedback (NF) to treat attention-deficit/hyperactivity disorder (ADHD) in children and adolescents. Methods: The ADHD population ...
    • The Pharmacogenomics of Bipolar Disorder study (PGBD): Identification of genes for lithium response in a prospective sample 

      Ødegaard, Ketil Joachim; Alda, Martin; Anand, Anit; Andreassen, Ole Andreas; Balaraman, Yokesh; Berrettini, Wade H.; Bhattacharjee, Abesh; Brennand, Kristen J.; Burdick, Katherine E.; Calabrese, Joseph R.; Calkin, Cynthia V.; Claasen, Ana; Coryell, William H.; Craig, David; DeModena, Anna; Frye, Mark A.; Gage, Fred H.; Gao, Keming; Garnham, Julie; Gershon, Elliot; Jakobsen, Petter; Leckband, Susan G.; McCarthy, Michael J.; McInnis, Melvin G.; Maihofer, Adam X.; Mertens, Jerome; Morken, Gunnar; Nievergelt, Caroline M.; Nurnberger, John I.; Pham, Son; Schøyen, Helle Kristine; Shekhtman, Tatyana; Shilling, Paul D.; Szelinger, Szabolcs; Tarwater, Bruce; Yao, Jun; Zandi, Peter P.; Kelsoe, John R. (Peer reviewed; Journal article, 2016-05-05)
      Background: Bipolar disorder is a serious and common psychiatric disorder characterized by manic and depressive mood switches and a relapsing and remitting course. The cornerstone of clinical management is stabilization ...
    • Treatment of schizophrenia with antipsychotics in Norwegian emergency wards, a cross-sectional national study 

      Kroken, Rune A.; Johnsen, Erik; Ruud, Torleif; Wentzel-Larsen, Tore; Jørgensen, Hugo A. (Peer reviewed; Journal article, 2009-05-16)
      Background: Surveys on prescription patterns for antipsychotics in the Scandinavian public health system are scarce despite the prevalent use of these drugs. The clinical differences between antipsychotic drugs are mainly ...
    • Variability of activity patterns across mood disorders and time of day 

      Krane-Gartiser, Karoline; Vaaler, Arne; Fasmer, Ole Bernt; Sørensen, Kjetil; Morken, Gunnar; Scott, Janine Linda (Peer reviewed; Journal article, 2017-12-19)
      Background: Few actigraphy studies in mood disorders have simultaneously included unipolar (UP) and bipolar (BD) depression or BD mixed states as a separate subgroup from mania. This study compared objectively measured ...