Blar i Department of Clinical Medicine på forfatter "Ødegaard, Ketil Joachim"
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Nonlinear Analysis of Motor Activity Shows Differences between Schizophrenia and Depression: A Study Using Fourier Analysis and Sample Entropy
Hauge, Erik R.; Berle, Jan Øystein; Ødegaard, Ketil Joachim; Holsten, Fred; Fasmer, Ole Bernt (Peer reviewed; Journal article, 2011-01-28)The purpose of this study has been to describe motor activity data obtained by using wrist-worn actigraphs in patients with schizophrenia and major depression by the use of linear and non-linear methods of analysis. Different ... -
Objective assessment of motor activity in a clinical sample of adults with attention-deficit/hyperactivity disorder and/or cyclothymic temperament
Syrstad, Vigdis Elin Giæver; Mjeldheim, Kristin; Førland, Wenche; Jakobsen, Petter; Gjestad, Rolf; Berle, Jan Øystein; Merikangas, Kathleen Ries; Ødegaard, Ketil Joachim; Fasmer, Ole Bernt (Journal article; Peer reviewed, 2022)Background Most research on patterns of motor activity has been conducted on adults with mood disorders, but few studies have investigated comorbid attention-deficit/hyperactivity disorder (ADHD) or temperamental factors ... -
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 ... -
Prospective cohort study of early biosignatures of response to lithium in bipolar-I-disorders: overview of the H2020-funded R-LiNK initiative
Scott, Jan; Hidalgo-Mazzei, Diego; Strawbridge, Rebecca; Young, Allan; Resche-Rigon, Matthieu; Etain, Bruno; Andreassen, Ole Andreas; Bauer, Michael; Bennabi, Djamila; Blamire, Andrew M.; Boumezbeur, Fawzi; Brambilla, Paolo; Cattane, Nadia; Cattaneo, Annamaria; Chupin, Marie; Coello, Klara; Cointepas, Yann; Colom, Francesc; Cousins, David A.; Dubertret, Caroline; Duchesnay, Edouard; Ferro, Adele; Garcia-Estela, Aitana; Goikolea, Jose; Grigis, Antoine; Haffen, Emmanuel; Høegh, Margrethe Collier; Jakobsen, Petter; Kalman, Janos L.; Kessing, Lars V.; Klohn-Saghatolislam, Farah; Lagerberg, Trine Vik; Landén, Mikael; Lewitzka, Ute; Lutticke, Ashley; Mazer, Nicolas; Mazzelli, Monica; Mora, Cristina; Muller, Thorsten; Mur-Mila, Estanislao; Ødegaard, Ketil Joachim; Oltedal, Leif; Pålsson, Erik; Papadopoulos Orfanos, Dimitri; Papiol, Sergi; Perez-Sola, Victor; Reif, Andreas; Ritter, Philipp; Rossi, Roberto; Schulze, Thomas; Senner, Fanny; Smith, Fiona E.; Squarcina, Letizia; Steen, Nils Eiel; Thelwall, Pete E.; Varo, Cristina; Vieta, Eduard; Vinberg, Maj; Wessa, Michele; Westlye, Lars Tjelta; Bellivier, Frank (Peer reviewed; Journal article, 2019-09-25)Background Lithium is recommended as a first line treatment for bipolar disorders. However, only 30% of patients show an optimal outcome and variability in lithium response and tolerability is poorly understood. It remains ... -
Reduced heart rate variability during mania in a repeated naturalistic observational study
Stautland, Andrea; Jakobsen, Petter; Fasmer, Ole Bernt; Osnes, Berge; Tørresen, Jim; Nordgreen, Tine; Ødegaard, Ketil Joachim (Journal article; Peer reviewed, 2023)Background: Bipolar disorder (BD) is a chronic recurrent mood disorder associated with autonomic nervous system (ANS) dysfunction, indexed by heart rate variability (HRV). Changes in HRV between mood states are sparsely ... -
Short and long-term effects of single and multiple sessions of electroconvulsive therapy on brain gray matter volumes
Brancati, Giulio Emilio; Brekke, Njål; Bartsch, Hauke; Sørhaug, Ole Johan Evjenth; Ousdal, Olga Therese; Hammar, Åsa Karin; Schuster, Peter Moritz; Ødegaard, Ketil Joachim; Kessler, Ute; Oltedal, Leif (Journal article; Peer reviewed, 2021)Background: Electroconvulsive therapy (ECT) has been shown to induce broadly distributed cortical and subcortical volume increases, more prominently in the amygdala and the hippocampus. Structural changes after one ECT ... -
Structural changes induced by electroconvulsive therapy are associated with clinical outcome
Mulders, Peter C. R.; Llera, Alberto; Beckmann, Christian F.; Vandenbulcke, Mathieu; Stek, Max L; Sienaert, Pascal; Redlich, Ronny; Petrides, Georgios; Oudega, Mardien L.; Oltedal, Leif; Ødegaard, Ketil Joachim; Narr, Katherine L; Magnusson, Peter; Kessler, Ute; Jorgensen, Anders; Espinoza, Randall; Enneking, Verena; Emsell, Louise; Dols, Annemieke; Dannlowski, Udo; Bolwig, Tom G; Bartsch, Hauke; Argyelan, Miklos; Anand, Amit; Abbott, Christopher; van Eijndhoven, Philip; Tendolkar, Indira (Journal article; Peer reviewed, 2020)Background Electroconvulsive therapy (ECT) is the most effective treatment option for major depressive disorder, so understanding whether its clinical effect relates to structural brain changes is vital for current and ... -
The study protocol of the Norwegian randomized controlled trial of electroconvulsive therapy in treatment resistant depression in bipolar disorder
Kessler, Ute; Vaaler, Arne E.; Schøyen, Helle Kristine; Ødegaard, Ketil Joachim; Bergsholm, Per; Andreassen, Ole Andreas; Malt, Ulrik F.; Morken, Gunnar (Peer reviewed; Journal article, 2010-02-23)Background The treatment of depressive phases of bipolar disorder is challenging. The effects of the commonly used antidepressants in bipolar depression are questionable. Electroconvulsive therapy is generally considered ...