Browsing Registrations from Cristin by Author "Fasmer, Ole Bernt"
Now showing items 1-14 of 14
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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 ... -
Affect Recognition in Muscular Response Signals
Boeker, Matthias; Jakobsen, Petter; Riegler, Michael; Stabell, Lena Antonsen; Fasmer, Ole Bernt; Halvorsen, Pål; Hammer, Hugo Lewi (Journal article; Peer reviewed, 2023)This study investigated the potential of recognising arousal in motor activity collected by wrist-worn accelerometers. We hypothesise that emotional arousal emerges from the generalised central nervous system which embeds ... -
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, ... -
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 ... -
Blue-blocking glasses as additive treatment for mania: Effects on actigraphy-derived sleep parameters
Henriksen, Tone Elise Gjøtterud; Grønli, Janne; Assmus, Jörg; Fasmer, Ole Bernt; Schøyen, Helle Kristine; Leskauskaite, Ieva; Bjørke-Bertheussen, Janette; Ytrehus, Kjersti; Lund, Anders (Journal article; Peer reviewed, 2020)Improvement of sleep is a central treatment goal for patients in a manic state. Blue‐blocking (BB) glasses as adjunctive treatment hasten overall recovery from mania. This method is an evolvement from dark therapy and ... -
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 ... -
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 ... -
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 ... -
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 ... -
Lower Cardiac Vagal Activity Predicts Self-Reported Difficulties With Emotion Regulation in Adolescents With ADHD
Kvadsheim, Elisabet; Fasmer, Ole Bernt; Osnes, Berge; Koenig, Julian; Adolfsdottir, Steinunn; Eichele, Heike; Plessen, Kerstin Jessica; Sørensen, Lin (Journal article; Peer reviewed, 2020)Objective: To investigate the relation between cardiac vagal activity (CVA), a measure of autonomic nervous system (ANS) flexibility, and self-reported emotion regulation (ER) difficulties in adolescents with attention-d ... -
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 ... -
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 ... -
Vagally mediated heart rate variability, stress, and perceived social support: a focus on sex differences
Kvadsheim, Elisabet; Sørensen, Lin; Fasmer, Ole Bernt; Osnes, Berge; Haavik, Jan; Williams, DeWayne P.; Thayer, Julian Francis; Koenig, Julian (Journal article; Peer reviewed, 2022)Higher vagally mediated heart rate variability (vmHRV), reflecting vagal activity as indexed by heart function and lower stress vulnerability, is associated with higher perceived social support. Seeking social support is ...