Browsing Bergen Open Research Archive by Author "Bjorvatn, Bjørn"
Now showing items 21-40 of 124
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Bright light exposure during simulated night work improves cognitive flexibility
Sunde, Erlend; Mrdalj, Jelena; Pedersen, Torhild Thue; Bjorvatn, Bjørn; Grønli, Janne; Harris, Anette Kristoffersen; Waage, Siri; Pallesen, Ståle (Journal article; Peer reviewed, 2022)Night work leads to sleepiness and reduced vigilant attention during work hours, and bright light interventions may reduce such effects. It is also known that total sleep deprivation impairs cognitive flexibility as measured ... -
Can insomnia in pregnancy predict postpartum depression? A longitudinal, population-based study
Dørheim, Signe Karen; Bjorvatn, Bjørn; Eberhard-Gran, Malin (Peer reviewed; Journal article, 2014-04-14)Background: Insomnia and depression are strongly interrelated. This study aimed to describe changes in sleep across childbirth, and to evaluate whether insomnia in pregnancy is a predictor of postpartum depression. Methods: ... -
Causes and management of sleepiness among pilots in a Norwegian and an Austrian air ambulance service—a comparative study
Zakariassen, Erik; Waage, Siri; Harris, Anette; Gatterbauer-Trischler, Pia; Lang, Bernd; Voelckel, Wolfgang Georg Cornelius; Pallesen, Ståle; Bjorvatn, Bjørn (Peer reviewed; Journal article, 2019-01)Objective We compared subjectively reported sleepiness and fatigue as well as causes and management strategies for combating sleepiness among pilots working in 2 different helicopter emergency medical services operating ... -
Changes in the Work Schedule of Nurses Related to the COVID-19 Pandemic and Its Relationship with Sleep and Turnover Intention
Djupedal, Ingebjørg Louise Rockwell; Pallesen, Ståle; Harris, Anette Kristoffersen; Waage, Siri; Bjorvatn, Bjørn; Vedaa, Øystein (Journal article; Peer reviewed, 2022-07-17)Background: This study aimed to investigate whether different types of changes in the work schedule of nurses working rotating shifts during the COVID-19 pandemic were associated with sleep duration, sleep quality, and ... -
Circadian typology and implications for adolescent sleep health. Results from a large, cross-sectional, school-based study
Saxvig, Ingvild West; Evanger, Linn Nyjordet; Pallesen, Ståle; Hysing, Mari; Sivertsen, Børge; Gradisar, Michael; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2021)Study objectives To investigate circadian typology in a large, representative sample of Norwegian adolescents, and its implications for sleep health. Methods The sample included 3920 1st year high school students aged ... -
Clinical information predicting severe obstructive sleep apnea: A cross-sectional study of patients waiting for sleep diagnostics
Jonassen, Trygve Müller; Bjorvatn, Bjørn; Saxvig, Ingvild W.; Eagan, Tomas Mikal Lind; Lehmann, Sverre (Journal article; Peer reviewed, 2022)Introduction Obstructive sleep apnea (OSA) is highly prevalent with serious health consequences. Demand for diagnostic studies is high, in many countries exceeding capacity. Purpose The objective of this cross-sectional ... -
Clinical Significance of Periodic Limb Movement Disorder (PLMD) in Insomnia Patients
Sivertsen, Børge; Omvik, Siri; Straume, Sivert; Pallesen, Ståle; Bjorvatn, Bjørn; Havik, Odd E. (Peer reviewed; Journal article, 2008) -
Clinically significant discrepancies between sleep problems assessed by standard clinical tools and actigraphy
Blytt, Kjersti Marie; Bjorvatn, Bjørn; Husebø, Bettina; Flo, Elisabeth (Peer reviewed; Journal article, 2017-10-27)Background: Sleep disturbances are widespread among nursing home (NH) patients and associated with numerous negative consequences. Identifying and treating them should therefore be of high clinical priority. No prior studies ... -
Cognitive behavioral therapy for chronic insomnia in outpatients with major depression—A randomised controlled trial
Dyrberg, Henny; Bjorvatn, Bjørn; Larsen, Erik Roj (Journal article; Peer reviewed, 2022)The aim of this randomised controlled assessor-blinded trial was to examine the effect of cognitive behavioural therapy for insomnia on sleep variables and depressive symptomatology in outpatients with comorbid insomnia ... -
A comparison of sleep, insomnia and health‑related quality of life between mothers and fathers of preterm versus full‑born infants: a longitudinal study from Norway
Marthinsen, Gunhild Nordbø; Helseth, Sølvi; Småstuen, Milada Cvancarova; Bjorvatn, Bjørn; Fegran, Liv (Journal article; Peer reviewed, 2024)Background Poor sleep may negatively affect parents’ health-related quality of life (HRQoL). This longitudinal study aimed to describe and compare sleep, insomnia and HRQoL in mothers and fathers of preterm and full-born ... -
Do people use methods or tricks to fall asleep? A comparison between people with and without chronic insomnia
Bjorvatn, Bjørn; Waage, Siri; Saxvig, Ingvild W. (Journal article; Peer reviewed, 2022)The present study estimated the frequency of using methods or tricks to fall asleep in the general Norwegian population. Further, people with chronic insomnia were compared with people without chronic insomnia. A representative ... -
Doxazosin for the treatment of nightmare disorder: A diary-based case study
Pallesen, Ståle; Hamre, HS; Lang, Nina; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2020)The α1-adrenergic antagonist prazosin has showed good effect against posttraumatic stress disorder–related nightmares in several randomized controlled trials. The α1-adrenergic antagonist doxazosin, which has a longer ... -
Early and Later Life Stress Alter Brain Activity and Sleep in Rats
Mrdalj, Jelena; Pallesen, Ståle; Milde, Anne Marita; Jellestad, Finn Konow; Murison, Robert; Ursin, Reidun; Bjorvatn, Bjørn; Grønli, Janne (Peer reviewed; Journal article, 2013-07-26)Exposure to early life stress may profoundly influence the developing brain in lasting ways. Neuropsychiatric disorders associated with early life adversity may involve neural changes reflected in EEG power as a measure ... -
Effect of Continuous Positive Airway Pressure on Symptoms and Prevalence of Insomnia in Patients With Obstructive Sleep Apnea: A Longitudinal Study
Lundetræ, Ragnhild Stokke; Saxvig, Ingvild W.; Aurlien, Harald; Lehmann, Sverre; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2021)Objective: Obstructive sleep apnea (OSA) and insomnia are the two most common sleep disorders. Continuous positive airway pressure (CPAP) is considered first-line treatment for OSA. In the present study, we assess the ... -
Effect of continuous positive airway pressure on symptoms of anxiety and depression in patients with obstructive sleep apnea
Lundetræ, Ragnhild Stokke; Saxvig, Ingvild W.; Lehmann, Sverre; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2020)Purpose The objective was to assess the effect of continuous positive airway pressure (CPAP) on symptoms of anxiety and depression in patients with obstructive sleep apnea (OSA). We hypothesized a decrease in symptoms at ... -
Effects of a work schedule with abated quick returns on insomnia, sleepiness and work-related fatigue. Results from a large-scale cluster randomized controlled trial
Djupedal, Ingebjørg Louise Rockwell; Harris, Anette; Svensen, Erling; Pallesen, Ståle; Waage, Siri; Nielsen, Morten Birkeland; Sunde, Erlend; Bjorvatn, Bjørn; Holmelid, Øystein; Vedaa, Øystein (Journal article; Peer reviewed, 2024)Study objectives To investigate the effect of a work schedule with abated quick returns (i.e., >11 hours between two shifts) on insomnia, daytime sleepiness, and work-related fatigue compared to a shift schedule maintaining ... -
The effects of bright light treatment on subjective and objective sleepiness during three consecutive night shifts among hospital nurses – a counter-balanced placebo-controlled crossover study
Bjorvatn, Bjørn; Pallesen, Ståle; Waage, Siri; Thun, Eirunn; Blytt, Kjersti Marie (Journal article; Peer reviewed, 2021)Objectives The objective was to investigate effects of timed bright light treatment on subjective and objective measures of sleepiness during three consecutive night shifts among hospital nurses. Methods Thirty-five ... -
Effects of pain treatment on sleep in nursing home patients with dementia and depression: A multicenter placebo-controlled randomized clinical trial
Blytt, Kjersti Marie; Bjorvatn, Bjørn; Husebø, Bettina; Flo, Elisabeth (Peer reviewed; Journal article, 2018-12-28)Objective: To investigate the effects of pain treatment on sleep in nursing home (NH) patients with dementia and depression. Methods: A multicenter, 2‐armed, double‐blinded, placebo‐controlled, randomized clinical trial ... -
The Effects of Pharmacological Treatment of Nightmares: A Systematic Literature Review and Meta-Analysis of Placebo-Controlled, Randomized Clinical Trials
Skeie-Larsen, Mathilda; Stave, Rebekka; Grønli, Janne; Bjorvatn, Bjørn; Wilhelmsen-Langeland, Ane; Zandi, Amin; Pallesen, Ståle (Journal article; Peer reviewed, 2023)Nightmares are highly prevalent and distressing for the sufferer, which underlines the need for well-documented treatments. A comprehensive literature review and meta-analysis of the effects of different pharmacological ... -
Elastic Bands Improve Oral Appliance Treatment Effect on Obstructive Sleep Apnoea: A Randomised Crossover Trial
Opsahl, Ulrik Leidland; Berge, Morten Eirik; Lehmann, Sverre; Bjorvatn, Bjørn; Johansson, Anders (Journal article; Peer reviewed, 2024)Background Oral appliances (OAs) that limit mouth opening during sleep, such as monobloc appliances, have shown superior treatment effects in subgroups of patients with obstructive sleep apnoea. The application of elastic ...