Browsing Bergen Open Research Archive by Author "Bjorvatn, Bjørn"
Now showing items 21-40 of 106
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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 ... -
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 ... -
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 ... -
The European Academy for Cognitive Behavioural Therapy for Insomnia: An initiative of the European Insomnia Network to promote implementation and dissemination of treatment
Baglioni, Chiara; Altena, Ellemarije; Bjorvatn, Bjørn; Blom, Kerstin; Bothelius, Kristoffer; Devoto, Alessandra; Espie, Colin A.; Frase, Lukas; Gavriloff, Dimitri; Tuuliki, Hion; Hoflehner, Andrea; Högl, Birgit; Holzinger, Brigitte; Järnefelt, Heli; Jernelöv, Susanna; Johann, Anna F.; Lombardo, Caterina; Nissen, Christoph; Palagini, Laura; Peeters, Geert; Perlis, Michael L.; Posner, Donn; Schlarb, Angelika; Spiegelhalder, Kai; Wichniak, Adam; Riemann, Dieter (Journal article; Peer reviewed, 2020)Insomnia, the most prevalent sleep disorder worldwide, confers marked risks for both physical and mental health. Furthermore, insomnia is associated with considerable direct and indirect healthcare costs. Recent guidelines ... -
The European Insomnia Guideline: An update on the diagnosis and treatment of insomnia 2023
Riemann, Dieter; Espie, Colin A.; Altena, Ellemarije; Arnardottir, Erna Sif; Baglioni, Chiara; Bassetti, Claudio L. A.; Bastien, Celyne; Berzina, Natalija; Bjorvatn, Bjørn; Dikeos, Dimitris; Dolenc Groselj, Leja; Ellis, Jason G.; Garcia-Borreguero, Diego; Geoffroy, Pierre A.; Gjerstad, Michaela-Alexandra Dreetz; Gonçalves, Marta; Hertenstein, Elisabeth; Hoedlmoser, Kerstin; Hion, Tuuliki; Holzinger, Brigitte; Janku, Karolina; Jansson-Fröjmark, Markus; Järnefelt, Heli; Jernelöv, Susanna; Jennum, Poul Jørgen; Khachatryan, Samson; Krone, Lukas; Kyle, Simon D.; Lancee, Jaap; Leger, Damien; Lupusor, Adrian; Marques, Daniel Ruivo; Nissen, Christoph; Palagini, Laura; Paunio, Tiina; Perogamvros, Lampros; Pevernagie, Dirk; Schabus, Manuel; Shochat, Tamar; Szentkiralyi, Andras; Van Someren, Eus; van Straten, Annemieke; Wichniak, Adam; Verbraecken, Johan; Spiegelhalder, Kai (Journal article; Peer reviewed, 2023)Progress in the field of insomnia since 2017 necessitated this update of the European Insomnia Guideline. Recommendations for the diagnostic procedure for insomnia and its comorbidities are: clinical interview (encompassing ... -
Evening-types show highest increase of sleep and mental health problems during the COVID-19 pandemic—multinational study on 19 267 adults
Merikanto, Ilona; Kortesoja, Laura; Benedict, Christian; Chung, Frances; Cedernaes, Jonathan; Espie, Colin A.; Morin, Charles M.; Dauvilliers, Yves; Partinen, Markku; Gennaro, Luigi De; Wing, Yun Kwok; Chan, Ngan Yin; Inoue, Yuichi; Matsui, Kentaro; Holzinger, Brigitte; Plazzi, Giuseppe; Mota-Rolim, Sérgio Arthuro; Leger, Damien; Penzel, Thomas; Bjorvatn, Bjørn (Journal article; Peer reviewed, 2022)Study Objectives Individual circadian type is a ubiquitous trait defining sleep, with eveningness often associated with poorer sleep and mental health than morningness. However, it is unknown whether COVID-19 pandemic has ... -
Evidence for widespread alterations in cortical microstructure after 32 h of sleep deprivation
Voldsbekk, Irene; Bjørnerud, Atle; Groote, Inge Rasmus; Zak, Nathalia; Roelfs, Daniël; Maximov, Ivan; Geier, Oliver; Due-Tønnessen, Paulina; Bøen, Erlend; Kuiper, Yvonne S.; Løkken, Lise Linn; Strømstad, Marie; Blakstvedt, Taran Youssefian; Bjorvatn, Bjørn; Malt, Ulrik Fredrik; Westlye, Lars Tjelta; Elvsåshagen, Torbjørn; Grydeland, Håkon (Journal article; Peer reviewed, 2022)Cortical microstructure is influenced by circadian rhythm and sleep deprivation, yet the precise underpinnings of these effects remain unclear. The ratio between T1-weighted and T2-weighted magnetic resonance images (T1w/T2w ... -
Habitual Sleep Patterns and Chronic Sleep Problems in Relation to Sex, Age, and Circadian Preference in a Population-Based Sample of Norwegian Adults
Saxwig, Ingvild West; Bjorvatn, Bjørn; Waage, Siri (Journal article; Peer reviewed, 2023)Sleep patterns and problems vary in relation to internal (e.g., sex, age, circadian preference) and external (e.g., social structures) factors. The main aim of the present study was to describe habitual sleep patterns and ... -
Habitual Sleep, Social Jetlag, and Reaction Time in Youths With Delayed Sleep–Wake Phase Disorder. A Case–Control Study
Saxvig, Ingvild W.; Wilhelmsen-Langeland, Ane; Pallesen, Ståle; Nordhus, Inger Hilde; Vedaa, Øystein; Bjorvatn, Bjørn (Peer reviewed; Journal article, 2019-11-12)The aim of this study was to explore habitual sleep, social jetlag, and day-to-day variations in sleep (measured as intra-individual standard deviation, ISD) in youths with delayed sleep–wake phase disorder (DSWPD), compared ... -
Has the COVID-19 Pandemic Traumatized Us Collectively? The Impact of the COVID-19 Pandemic on Mental Health and Sleep Factors via Traumatization: A Multinational Survey
Holzinger, Brigitte; Nierwetberg, Franziska; Chung, Frances; Bolstad, Courtney J.; Bjorvatn, Bjørn; Chan, Ngan Yin; Dauvilliers, Yves; Espie, Colin A.; Han, Fang; Inoue, Yuichi; Leger, Damien; Macêdo, Tainá; Matsui, Kentaro; Merikanto, Ilona; Morin, Charles M.; Mota-Rolim, Sérgio A.; Partinen, Markku; Plazzi, Giuseppe; Penzel, Thomas; Sieminski, Mariusz; Wing, Yun Kwok; Scarpelli, Serena; Nadorff, Michael R.; De Gennaro, Luigi (Journal article; Peer reviewed, 2022)Purpose: The COVID-19 pandemic affects mental health and sleep, resulting in frequent nightmares. Therefore, identifying factors associated with nightmare frequency is important, as it can indicate mental health issues. ... -
Health-promoting work schedules: protocol for a large-scale cluster randomised controlled trial on the effects of a work schedule without quick returns on sickness absence among healthcare workers
Vedaa, Øystein; Djupedal, Ingebjørg Louise Rockwell; Svensen, Erling; Waage, Siri; Bjorvatn, Bjørn; Pallesen, Ståle; Lie, Stein Atle; Nielsen, Morten Birkeland; Harris, Anette Kristoffersen (Journal article; Peer reviewed, 2022)Introduction In shift work, quick returns refer to transitions between two shifts with less than 11 hours available rest time. Twenty-three per cent of employees in European countries reported having quick returns. Quick ... -
How our Dreams Changed During the COVID-19 Pandemic: Effects and Correlates of Dream Recall Frequency - a Multinational Study on 19,355 Adults
Fränkl, Eirin; Scarpelli, Serena; Nadorff, Michael R.; Bjorvatn, Bjørn; Bolstad, Courtney J.; Chan, Ngan Yin; Chung, Frances; Dauvilliers, Yves; Espie, Colin A.; Inoue, Yuichi; Leger, Damien; Macedo, Taina; Matsui, Kentaro; Merikanto, Ilona; Morin, Charles M.; Mota-Rolim, Sérgio Arthuro; Partinen, Markku; Penzel, Thomas; Plazzi, Giuseppe; Sieminski, Mariusz; Wing, Yun Kwok; Gennaro, Luigi De; Holzinger, Brigitte (Journal article; Peer reviewed, 2021)Objective: Many have reported odd dreams during the pandemic. Given that dreams are associated with mental health, understanding these changes could provide crucial information about wellbeing during the pandemic. This ... -
How to schedule night shift work in order to reduce health and safety risks
Garde, Anne Helene; Begtrup, Luise; Bjorvatn, Bjørn; Bonde, Jens Peter; Hansen, Johnni; Hansen, Åse Marie; Härmä, Mikko; Jensen, Marie Aarrebo; Kecklund, Göran; Kolstad, Henrik A.; Larsen, Ann Dyreborg; Lie, Jenny-Anne Sigstad; Moreno, Claudia; Nabe-Nielsen, Kirsten; Sallinen, Mikael (Journal article; Peer reviewed, 2020)Objectives This discussion paper aims to provide scientifically based recommendations on night shift schedules, including consecutive shifts, shift intervals and duration of shifts, which may reduce health and safety risks. ...