Blar i Department of Clinical Medicine på forfatter "Fasmer, Ole Bernt"
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Actigraphic assessment of motor activity in acutely admitted inpatients with bipolar disorder
Krane-Gartiser, Karoline; Henriksen, Tone Elise Gjøtterud; Morken, Gunnar; Vaaler, Arne Einar; Fasmer, Ole Bernt (Peer reviewed; Journal article, 2014-02-20)Introduction: Mania is associated with increased activity, whereas psychomotor retardation is often found in bipolar depression. Actigraphy is a promising tool for monitoring phase shifts and changes following treatment ... -
Actigraphic registration of motor activity reveals a more structured behavioural pattern in schizophrenia than in major depression
Berle, Jan Øystein; Hauge, Erik R.; Ødegaard, Ketil Joachim; Holsten, Fred; Fasmer, Ole Bernt (Peer reviewed; Journal article, 2010-05-27)Background: Disturbances in motor activity pattern are seen in both schizophrenia and depression. However, this activity has rarely been studied objectively. The purpose of the present study has been to study the complexity ... -
Actigraphy as an objective intra‑individual marker of activity patterns in acute‑phase bipolar disorder: a case series
Krane-Gartiser, Karoline; Asheim, Andreas; Fasmer, Ole Bernt; Morken, Gunnar; Vaaler, Arne; Scott, Janine Linda (Peer reviewed; Journal article, 2018-03-07)Background: Actigraphy could be an objective alternative to clinical ratings of motor activity in bipolar disorder (BD), which is of importance now that increased activity and energy are added as cardinal symptoms of ... -
Actigraphy assessment of motor activity and sleep in patients with alcohol withdrawal syndrome and the effects of intranasal oxytocin
Melby, Katrine; Fasmer, Ole Bernt; Henriksen, Tone Elise Gjøtterud; Gråwe, Rolf W.; Aamo, Trond Oskar; Spigset, Olav (Journal article; Peer reviewed, 2020)Background and aims The alcohol withdrawal syndrome increases autonomic activation and stress in patients during detoxification, leading to alterations in motor activity and sleep irregularities. Intranasal oxytocin has ... -
Adult attention deficit hyperactivity disorder is associated with asthma
Fasmer, Ole Bernt; Halmøy, Anne; Eagan, Tomas Mikal; Ødegaard, Ketil Joachim; Haavik, Jan (Peer reviewed; Journal article, 2011-08-07)Background: Attention deficit hyperactivity disorder (ADHD) is increasingly recognized as a common disorder not only in children, but also in the adult population. Similarly, asthma also has a substantial prevalence among ... -
Adult attention deficit hyperactivity disorder is associated with migraine headaches
Fasmer, Ole Bernt; Halmøy, Anne; Ødegaard, Ketil Joachim; Haavik, Jan (Peer reviewed; Journal article, 2011-03-11)Attention deficit hyperactivity disorder (ADHD) is now recognized as a common disorder both in child and adult psychiatry. Adult patients with a diagnosis of ADHD (n = 572) and community controls (n = 675) responded to ... -
Applying machine learning in motor activity time series of depressed bipolar and unipolar patients compared to healthy controls
Jakobsen, Petter; Garcia-Ceja, Enrique; Riegler, Michael; Stabell, Lena Antonsen; Nordgreen, Tine; Tørresen, Jim; Fasmer, Ole Bernt; Ødegaard, Ketil Joachim (Journal article; Peer reviewed, 2020)Current practice of assessing mood episodes in affective disorders largely depends on subjective observations combined with semi-structured clinical rating scales. Motor activity is an objective observation of the inner ... -
Assessing medical students’ attitudes towards learning communication skills – which components of attitudes do we measure?
Anvik, Tor; Gude, Tore; Grimstad, Hilde; Bærheim, Anders; Fasmer, Ole Bernt; Hjortdahl, Per; Holen, Are; Risberg, Terje; Vaglum, Per (Peer reviewed; Journal article, 2007-03-30)Background. The Communication Skills Attitudes Scale (CSAS) created by Rees, Sheard and Davies and published in 2002 has been a widely used instrument for measuring medical students' attitudes towards learning communication ... -
Blue-blocking glasses as additive treatment for mania: A randomized placebo-controlled trial
Henriksen, Tone Elise Gjøtterud; Skrede, Silje; Fasmer, Ole Bernt; Schøyen, Helle Kristine; Leskauskaite, Ieva; Bjørke-Bertheussen, Janette; Assmus, Jörg; Hamre, Børge; Grønli, Janne; Lund, Anders (Peer reviewed; Journal article, 2016-05)Objectives: The discovery of the blue lightsensitive retinal photoreceptor responsible for signaling daytime to the brain suggested that light to the circadian system could be inhibited by using blue-blocking orange tinted ... -
Circadian rest-activity rhythms during benzodiazepine tapering covered by melatonin versus placebo add-on: data derived from a randomized clinical trial
Baandrup, Lone; Fasmer, Ole Bernt; Glenthøj, Birte Yding; Jennum, Poul Jørgen (Peer reviewed; Journal article, 2016-10-13)Background: Patients with severe mental illness often suffer from disruptions in circadian rest-activity cycles, which might partly be attributed to ongoing psychopharmacological medication. Benzodiazepines are frequently ... -
Co-prescription of medication for bipolar disorder and diabetes mellitus: a nationwide population-based study with focus on gender differences
Svendal, Gjertrud; Fasmer, Ole Bernt; Engeland, Anders; Berk, Michael; Lund, Anders (Peer reviewed; Journal article, 2012-11-27)Background: Studies have shown a correlation between bipolar disorder and diabetes mellitus. It is unclear if this correlation is a part of common pathophysiological pathways, or if medication for bipolar disorder has ... -
Complexity and variability analyses of motor activity distinguish mood states in Bipolar Disorder
Jakobsen, Petter; Stautland, Andrea; Riegler, Michael; Côté-Allard, Ulysse Teller Masao; Sepasdar, Zahra; Nordgreen, Tine; Tørresen, Jim; Fasmer, Ole Bernt; Ødegaard, Ketil Joachim (Journal article; Peer reviewed, 2022)Changes in motor activity are core symptoms of mood episodes in bipolar disorder. The manic state is characterized by increased variance, augmented complexity and irregular circadian rhythmicity when compared to healthy ... -
Cyclothymic temperament: Associations with ADHD, other psychopathology, and medical morbidity in the general population
Syrstad, Vigdis Elin Giæver; Ødegaard, Ketil Joachim; Fasmer, Ole Bernt; Halmøy, Anne; Haavik, Jan; Dilsaver, Stephen C.; Gjestad, Rolf (Peer reviewed; Journal article, 2020)Background: Cyclothymic temperament (CT) is an affective disposition often preceding bipolar disorder (BD), and is the most common affective temperament in patients with BD. In depressed patients, CT is a predictor for ... -
Diagnosing Schizophrenia from Activity Records using Hidden Markov Model Parameters
Boeker, Matthias; Riegler, Michael; Hammer, Hugo Lewi; Halvorsen, Pål; Fasmer, Ole Bernt; Jakobsen, Petter (Chapter, 2021)The diagnosis of Schizophrenia is mainly based on qualitative characteristics. With the usage of portable devices which measure activity of humans, the diagnosis of Schizophrenia can be enriched through quantitative features. ... -
Diurnal variation of motor activity in adult ADHD patients analyzed with methods from graph theory
Fasmer, Ole Bernt; Fasmer, Erlend Eindride; Mjeldheim, Kristin; Førland, Wenche; Syrstad, Vigdis Elin Giæver; Jakobsen, Petter; Berle, Jan Øystein; Henriksen, Tone Elise Gjøtterud; Sepasdar, Zahra; Hauge, Erik Rønneberg; Ødegaard, Ketil Joachim (Journal article; Peer reviewed, 2020-11)Attention-deficit /hyperactivity disorder (ADHD) is a common neurodevelopmental syndrome characterized by age-inappropriate levels of motor activity, impulsivity and attention. The aim of the present study was to study ... -
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 ... -
HYPERAKTIV: An Activity Dataset from Patients with Attention-Deficit/Hyperactivity Disorder (ADHD)
Hicks, Steven; Stautland, Andrea; Fasmer, Ole Bernt; Førland, Wenche; Hammer, Hugo Lewi; Halvorsen, Pål; Mjeldheim, Kristin; Ødegaard, Ketil Joachim; Osnes, Berge; Syrstad, Vigdis Elin Giæver; Riegler, Michael; Jakobsen, Petter (Chapter, 2021)Machine learning research within healthcare frequently lacks the public data needed to be fully reproducible and comparable. Datasets are often restricted due to privacy concerns and legal requirements that come with ... -
Individual Variability in Reaction Time and Prediction of Clinical Response to Methylphenidate in Adult ADHD: A Prospective Open Label Study Using Conners’ Continuous Performance Test II
Fredriksen, Mats; Egeland, Jens; Haavik, Jan; Fasmer, Ole Bernt (Peer reviewed; Journal article, 2019)Objective: The aim of this study was to examine whether reaction time parameters in adult patients with ADHD could predict their response to methylphenidate (MPH). Method: Previously unmedicated patients (N = 123) were ... -
Innovative approaches in investigating inter-beat intervals: Graph theoretical method suggests altered autonomic functioning in adolescents with ADHD
Kvadsheim, Elisabet; Fasmer, Ole Bernt; Fasmer, Erlend Eindride; Hauge, Erik Rønneberg; Thayer, Julian F.; Osnes, Berge; Haavik, Jan; Koenig, Julian; Adolfsdottir, Steinunn; Plessen, Kerstin J.; Sørensen, Lin (Journal article; Peer reviewed, 2022)Cardiac inter-beat intervals (IBIs) are considered to reflect autonomic functioning and self-regulatory abilities and are often investigated by traditional time- and frequency domain analyses. These analyses investigate ... -
Linear and non-linear analyses of Conner’s Continuous Performance Test-II discriminate adult patients with attention deficit hyperactivity disorder from patients with mood and anxiety disorders
Fasmer, Ole Bernt; Mjeldheim, Kristin; Førland, Wenche; Hansen, Anita Lill; Syrstad, Vigdis Elin Giæver; Ødegaard, Ketil Joachim; Berle, Jan Øystein (Peer reviewed; Journal article, 2016-08-11)Background: Attention Deficit Hyperactivity Disorder (ADHD) is a heterogeneous disorder. Therefore it is important to look for factors that can contribute to better diagnosis and classification of these patients. The aims ...