Browsing NTNU Open by Author "Vaaler, Arne"
Now showing items 21-30 of 30
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Motor activity patterns in acute schizophrenia and other psychotic disorders can be differentiated from bipolar mania and unipolar depression
Krane-Gartiser, Karoline; Henriksen, Tone Elise Gjøtterud; Morken, Gunnar; Vaaler, Arne; Fasmer, Ole Bernt (Journal article; Peer reviewed, 2018)The purpose of this study was to compare 24-h motor activity patterns between and within three groups of acutely admitted inpatients with schizophrenia and psychotic disorders (n = 28), bipolar mania (n = 18) and motor-retarded ... -
Non-disclosure of suicidal ideation in psychiatric inpatients: Rates and correlates
Høyen, Karina Sagmo; Solem, Stian; Cohen, Lisa Janet; Prestmo, Astrid; Hjemdal, Odin; Vaaler, Arne; Galynker, Igor; Torgersen, Terje (Peer reviewed; Journal article, 2021)The study explored how common non-disclosure of suicidal ideation is in a sample of adult psychiatric inpatients (N = 171) plus associated patient characteristics. A large percentage (51.5%) withheld some information on ... -
Quantitative EEG findings in patients with acute, brief depression combined with other fluctuating psychiatric symptoms: a controlled study from an acute psychiatric department
Bjørk, Marte Helene; Sand, Trond; Bråthen, Geir; Linaker, Olav Morten; Morken, Gunnar; Nilsen, Brigt; Vaaler, Arne (Journal article; Peer reviewed, 2008)Background: Patients with brief depressive episodes and concurrent rapidly fluctuating psychiatric symptoms do not fit current diagnostic criteria and they can be difficult to diagnose and treat in an acute psychiatric ... -
Short-term prediction of threatening and violent behaviour in an Acute Psychiatric Intensive Care Unit based on patient and environment characteristics
Vaaler, Arne; Iversen, Valentina Cabral; Morken, Gunnar; Fløvig, John Chr.; Palmstierna, Tom; Linaker, Olav Morten (Journal article; Peer reviewed, 2011)Background: The aims of the present study were to investigate clinically relevant patient and environment-related predictive factors for threats and violent incidents the first three days in a PICU population based on ... -
Subtle Phenotype Differences in Psychiatric Patients With and Without Serum Immunoglobulin G Antibodies to Synapsin
Sæther, Sverre Georg; Vaaler, Arne; Evjenth, Anita; Aune, Therese Lie; Höltje, Markus; Ruprecht, Klemens; Schou, Morten Brix (Journal article; Peer reviewed, 2019)The discovery that antibodies targeting neuronal antigens can induce severe psychiatric symptoms has been a significant progress in the understanding of psychiatric disorders. Antibodies targeting synapsin I in serum and ... -
Symptoms of epilepsy and organic brain dysfunctions in patients with acute, brief depression combined with other fluctuating psychiatric symptoms: a controlled study from an acute psychiatric department
Vaaler, Arne; Morken, Gunnar; Linaker, Olav Morten; Sand, Trond; Kvistad, Kjell Arne; Bråthen, Geir (Journal article; Peer reviewed, 2009)Background: In psychiatric acute departments some patients present with brief depressive periods accompanied with fluctuating arrays of other psychiatric symptoms like psychosis, panic or mania. For the purpose of the ... -
The Predictive Properties of Violence Risk Instruments May Increase by Adding Items Assessing Sleep.
Langsrud, Knut; Vaaler, Arne; Morken, Gunnar; Kallestad, Håvard; Almvik, Roger; Palmstierna, Tom Krisman Kule; Guzey, Ismail Cuneyt (Journal article; Peer reviewed, 2019)Background: The psychometric instruments developed for short-term prediction of violence in psychiatric inpatients do not include variables assessing sleep. Disturbances in sleep may precede aggression in this setting. We ... -
The significance of anti-neuronal antibodies for acute psychiatric disorders: a retrospective case-controlled study
Schou, Morten Brix; Sæther, Sverre Georg; Drange, Ole Kristian; Krane-Gartiser, Karoline; Reitan, Solveig Merete Klæbo; Vaaler, Arne; Kondziella, Daniel (Journal article; Peer reviewed, 2018)Background The clinical significance of anti-neuronal antibodies in patients with psychiatric disorders, but without encephalitis, remains unknown. In patients admitted to acute psychiatric inpatient care we aimed to ... -
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 (Journal article; Peer reviewed, 2017)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 ... -
Variations in seasonal solar insolation are associated with a history of suicide attempts in bipolar I disorder
Bauer, Michael; Glenn, Tasha; Achtyes, Eric D.; Alda, Martin; Agaoglu, Esen; Altınbaş, Kürşat; Andreassen, Ole; Angelopoulos, Elias; Ardau, Rafaella; Vares, Edgar Arrua; Aydin, Memduha; Ayhan, Yavuz; Baethg, Christopher; Bauer, Rita; Baune, Bernhard T.; Balaban, Ceylan; Becerra‑Palars, Claudia; Behere, Aniruddh P.; Behere, Prakash B.; Belete, Habte; Belete, Tilahun; Belizario, Gabriel Okawa; Bellivier, Frank; Belmake, Robert H.; Benedetti, Francesco; Berk, Michael; Bersudsky, Yuly; Bicakci, Şule; Birabwa‑Oketcho, Harriet; Bjella, Thomas; Brady, Conan; Cabrera, Jorge; Cappucciati, Marco; Castro, Angela Marianne Paredes; Chen, Wei‑Ling; Cheung, Eric Yat Wo; Chiesa, Silvia; Crowe, Marie; Cuomo, Alessandro; Dallaspezia, Sara; Zompo, Maria Del; Desai, Pratikkumar; Dodd, Seetal; Donix, Markus; Étain, Bruno; Fagiolini, Andrea; Fellendorf, Frederike T.; Melle, Ingrid; Morken, Gunnar; Vaaler, Arne (Peer reviewed; Journal article, 2021)Background: Bipolar disorder is associated with circadian disruption and a high risk of suicidal behavior. In a previous exploratory study of patients with bipolar I disorder, we found that a history of suicide attempts ...