2022

• Faaland, Patrick; Vedaa, Øystein; Langsrud, Knut; Sivertsen, Børge; Lydersen, Stian; Vestergaard, Cecilie Lund; Kjørstad, Kaia; Vethe, Daniel; Ritterband, Lee M.; Harvey, Allison G.; Stiles, Tore C; Scott, Janine Linda; Kallestad, Håvard. (2022) Digital cognitive behaviour therapy for insomnia (dCBT-I): Chronotype moderation on intervention outcomes. Journal of Sleep Research. volum 31 (5).
  Academic article
• Heglum, Hanne Siri Amdahl; Drews, Henning Johannes; Kallestad, Håvard; Vethe, Daniel; Langsrud, Knut; Sand, Trond; Engstrøm, Morten. (2022) Contact-free radar recordings of body movement can reflect ultradian dynamics of sleep. Journal of Sleep Research.
  Academic article
• Kjørstad, Kaia; Faaland, Patrick; Sivertsen, Børge; Kallestad, Håvard; Langsrud, Knut; Vethe, Daniel; Vestergaard, Cecilie Lund; Harris, Anette Kristoffersen; Pallesen, Ståle; Scott, Janine Linda; Vedaa, Øystein. (2022) Sleep and work functioning in nurses undertaking inpatient shifts in a blue-depleted light environment. BMC Nursing. volum 21 (1).
  Academic article
• Kjørstad, Kaia; Sivertsen, Børge; Vedaa, Øystein; Langsrud, Knut; Vethe, Daniel; Faaland, Patrick; Vestergaard, Cecilie; Lydersen, Stian; Smith, Otto Robert Frans; Scott, Janine Linda; Kallestad, Håvard. (2022) The effects of digital CBT-I on work productivity and activity levels and the mediational role of insomnia symptoms: Data from a randomized controlled trial with 6-month follow-up. Behaviour Research and Therapy. volum 153.
  Academic article
• Scott, Janine Linda; Vedaa, Øystein; Sivertsen, Børge; Langsrud, Knut; Kallestad, Håvard. (2022) Using network intervention analysis to explore associations between participant expectations of and difficulties with cognitive behavioural therapy for insomnia and clinical outcome: A proof of principle study. Journal of Psychiatric Research. volum 148.
  Academic article
• Vethe, Daniel; Drews, Henning Johannes; Scott, Janine Linda; Engstrøm, Morten; Heglum, Hanne Siri Amdahl; Grønli, Janne; Wisor, J.P.; Sand, Trond; Lydersen, Stian; Kjørstad, Kaia; Faaland, Patrick; Vestergaard, Cecilie Lund; Langsrud, Knut; Kallestad, Håvard. (2022) Evening light environments can be designed to consolidate and increase the duration of REM-sleep. Scientific Reports. volum 12 (1).
  Academic article

2021

• Bredeli, Einar Rørstad; Vestergaard, Cecilie Lund; Sivertsen, Børge; Kallestad, Håvard; Øverland, Simon Nygaard; Ritterbandt, Lee M.; Glozier, Nick; Pallesen, Ståle; Scott, Jan; Langsrud, Knut; Vedaa, Øystein. (2021) Intraindividual variability in sleep among people with insomnia and its relationship with sleep, health and lifestyle factors: an exploratory study. Sleep Medicine. volum 89.
  Academic article
• Heglum, Hanne Siri Amdahl; Kallestad, Håvard; Vethe, Daniel; Langsrud, Knut; Sand, Trond; Engstrøm, Morten. (2021) Distinguishing sleep from wake with a radar sensor: A contact-free real-time sleep monitor. Sleep. volum 44 (8).
  Academic article
• Kallestad, Håvard; Saksvik, Simen Berg; Vedaa, Øystein; Langsrud, Knut; Morken, Gunnar; Lydersen, Stian; Simpson, Melanie Rae; Dørheim, Signe Karen; Holmøy, Bjørn; Germans Selvik, Sara; Hagen, Kristen; Stiles, Tore C; Harvey, Allison G.; Ritterband, Lee M.; Sivertsen, Børge; Scott, Jan. (2021) Digital cognitive-behavioural therapy for insomnia compared with digital patient education about insomnia in individuals referred to secondary mental health services in Norway: Protocol for a multicentre randomised controlled trial. BMJ Open. volum 11:e050661 (6).
  Academic article
• Kallestad, Håvard; Scott, Janine Linda; Vedaa, Øystein; Lydersen, Stian; Vethe, Daniel; Morken, Gunnar; Stiles, Tore C; Sivertsen, Børge; Langsrud, Knut. (2021) Mode of delivery of Cognitive Behavioral Therapy for Insomnia: a randomized controlled non-inferiority trial of digital and face-to-face therapy. Sleep. volum 44 (12).
  Academic article
• Saksvik, Simen Berg; Smevik, Hanne; Stenberg, Jonas; Follestad, Turid; Vik, Anne; Håberg, Asta; Asarnow, Robert F.; Kallestad, Håvard; Skandsen, Toril; Olsen, Alexander. (2021) Poor sleep quality is associated with greater negative consequences for cognitive control function and psychological health after mild traumatic brain injury than after orthopedic injury. Neuropsychology. volum 35 (7).
  Academic article
• Saksvik-Lehouillier, Ingvild; Langvik, Eva; Saksvik, Simen Berg; Kallestad, Håvard; Follesø, Hanna Størksen; Austad, Sigrun Borgen; Dahlberg, Berit Johanna; Ringen, Heidi; Tanum, Tiril Kristine; Sørengaard, Torhild Anita; Karlsen, Håvard Rudi; Smedbøl, Trine; Olsen, Alexander. (2021) High neuroticism is associated with reduced negative affect following sleep deprivation. Personality and Individual Differences. volum 185 (111291).
  Academic article
• Scott, Jan; Kallestad, Håvard; Vedaa, Øystein; Sivertsen, Børge; Etain, Bruno. (2021) Sleep disturbances and first onset of major mental disorders in adolescence and early adulthood: A systematic review and meta-analysis. Sleep Medicine Reviews. volum 57.
  Scientific translation/review
• Scott, Janine Linda; Langsrud, Knut; Goulding, Ingunn Rø; Kallestad, Håvard. (2021) Let there be blue-depleted light: In-patient dark therapy, circadian rhythms and length of stay. BJ Psych Advances. volum 27 (2).
  Academic article
• Vestergaard, Cecilie Lund; Vedaa, Øystein; Simpson, Melanie Rae; Faaland, Patrick; Vethe, Daniel; Kjørstad, Kaia; Langsrud, Knut; Ritterband, Lee M; Sivertsen, Børge; Stiles, Tore C; Scott, Jan; Kallestad, Håvard. (2021) The effect of sleep-wake intraindividual variability in digital cognitive behavioral therapy for insomnia: a mediation analysis of a large-scale RCT. Sleep. volum 44 (10).
  Academic article

2020

• Drews, Henning Johannes; Scott, Janine Linda; Langsrud, Knut; Vethe, Daniel; Kallestad, Håvard. (2020) Chronobiologically informed inpatient milieu in psychiatric institutions. The Lancet Psychiatry. volum 7 (12).
  Letter to the editor
• Filosa, James; Omland, Petter Moe; Langsrud, Knut; Hagen, Knut; Engstrøm, Morten; Drange, Ole Kristian; Knutsen, Andreas; Brenner, Eiliv; Kallestad, Håvard; Sand, Trond. (2020) Validation of insomnia questionnaires in the general population: The Nord-Trøndelag Health Study (HUNT). Journal of Sleep Research.
  Academic article
• Kjørstad, Kaia; Sivertsen, Børge; Vedaa, Øystein; Langsrud, Knut; Faaland, Patrick; Vethe, Daniel; Vestergaard, Cecilie Lund; Scott, Janine Linda; Kallestad, Håvard. (2020) The Effect of Reducing Insomnia Severity on Work- and Activity-Related Impairment. Behavioral Sleep Medicine.
  Academic article
• Osnes, Rannveig Storaune; Eberhard-Gran, Malin; Follestad, Turid; Kallestad, Håvard; Morken, Gunnar; Roaldset, John Olav. (2020) Mid-Pregnancy Insomnia and its Association with Perinatal Depressive Symptoms: A Prospective Cohort Study. Behavioral Sleep Medicine. volum 19 (3).
  Scientific translation/review
• Osnes, Rannveig Storaune; Eberhard-Gran, Malin; Follestad, Turid; Kallestad, Håvard; Morken, Gunnar; Roaldset, John Olav. (2020) Mid-pregnancy insomnia is associated with concurrent and postpartum maternal anxiety and obsessive-compulsive symptoms: A prospective cohort study. Journal of Affective Disorders. volum 266.
  Academic article
• Saksvik, Simen Berg; Karaliute, Migle; Kallestad, Håvard; Follestad, Turid; Asarnow, Robert F.; Vik, Anne; Håberg, Asta; Skandsen, Toril; Olsen, Alexander. (2020) The prevalence and stability of sleep-wake disturbance and fatigue throughout the first year after mild traumatic brain injury. Journal of Neurotrauma. volum 37 (23).
  Academic article
• Saksvik-Lehouillier, Ingvild; Saksvik, Simen Berg; Dahlberg, Berit Johanna; Tanum, Tiril Kristine; Ringen, Heidi; Karlsen, Håvard Rudi; Smedbøl, Trine; Sørengaard, Torhild Anita; Stople, Mailen; Kallestad, Håvard; Olsen, Alexander. (2020) Mild to moderate partial sleep deprivation is associated with increased impulsivity and decreased positive affect in young adults. Sleep. volum 43 (10).
  Academic article
• Vedaa, Øystein; Kallestad, Håvard; Scott, Janine Linda; Smith, Otto Robert Frans; Pallesen, Ståle; Morken, Gunnar; Langsrud, Knut; Gehrman, Philip; Thorndike, Frances P.; Ritterband, Lee M.; Harvey, Allison G.; Stiles, Tore C; Sivertsen, Børge. (2020) Effects of digital cognitive behavioural therapy for insomnia on insomnia severity: a large-scale randomised controlled trial. The Lancet Digital Health. volum 2 (8).
  Academic article
• Vethe, Daniel; Scott, Janine Linda; Engstrøm, Morten; Salvesen, Øyvind; Sand, Trond; Olsen, Alexander; Morken, Gunnar; Heglum, Hanne Siri Amdahl; Kjørstad, Kaia; Faaland, Patrick; Vestergaard, Cecilie Lund; Langsrud, Knut; Kallestad, Håvard. (2020) The evening light environment in hospitals can be designed to produce less disruptive effects on the circadian system and improve sleep. Sleep.
  Academic article

2019

• Gottlieb, John F.; Benedetti, Francesco; Geoffroy, Pierre A.; Henriksen, Tone Elise Gjøtterud; Lam, Raymond W.; Murray, Greg; Phelps, James; Sit, Dorothy; Swartz, Holly A.; Crowe, Marie; Etain, Bruno; Frank, Ellen; Goel, Namni; Haarman, Bartholomeus C.M.; Inder, Maree; Kallestad, Håvard; Jae Kim, Seong; Martiny, Klaus; Meesters, Ybe; Porter, Richard; Riemersma-van der Lek, Rixt F.; Ritter, Philipp S; Schulte, Peter F.J.; Scott, Jan; Wu, Joseph C.; Yu, Xin; Chen, Shenghao. (2019) The chronotherapeutic treatment of bipolar disorders: A systematic review and practice recommendations from the ISBD task force on chronotherapy and chronobiology. Bipolar Disorders. volum 21 (8).
  Scientific translation/review
• Kallestad, Håvard; Kjørstad, Kaia; Vethe, Daniel; Vestergaard, Cecilie Lund; Faaland, Patrick; Langsrud, Knut. (2019) Det nye sykehusbygget på Østmarka integrerer behandling, innovasjon og søvnforskning. SØVN. volum 11 (1).
  Popular scientific article
• Lane, Jacqueline M.; Jones, Samuel E.; Dashti, Hassan S.; Wood, Andrew R.; Aragam, Krishna G; van Hees, Vincent T.; Strand, Linn B; Winsvold, Bendik K S; Wang, Heming; Bowden, Jack; Song, Yanwei; Patel, Krunal; Anderson, Simon G.; Beaumont, Robin N.; Bechtold, David A.; Cade, Brian E.; Haas, Mary; Kathiresan, Sekar; Little, Max A.; Luik, Annemarie I.; Loudon, Andrew S.; Purcell, Shaun; Richmond, Rebecca C.; Scheer, Frank A.J.L.; Schormair, Barbara; Tyrrell, Jessica; Winkelman, John W.; Winkelmann, Juliane; Martinsen, Amy E.; Skogholt, Anne Heidi; Brumpton, Ben Michael; Sivertsen, Børge; Willer, Cristen J.; Bragantini, Daniela; Kallestad, Håvard; Janszky, Imre; Guzey, Ismail Cuneyt; Zwart, John-Anker; Nielsen, Jonas Bille; Nilsen, Kristian Bernhard; Hveem, Kristian; Fritsche, Lars; Pedersen, Linda Margareth; Gabrielsen, Maiken Elvestad; Johnsen, Marianne Bakke; Lie, Marie; Engstrøm, Morten; Sand, Trond; Zhou, Wei; Zhao, Chen; Redline, Susan; Spiegelhalder, Kai; Kyle, Simon D.; Ray, David W.; Frayling, Timothy M.; Lawlor, Deborah A.; Rutter, Martin K.; Weedon, Michael N.; Saxena, Richa. (2019) Biological and clinical insights from genetics of insomnia symptoms. Nature Genetics. volum 51 (3).
  Academic article
• Langsrud, Knut; Vaaler, Arne; Morken, Gunnar; Kallestad, Håvard; Almvik, Roger; Palmstierna, Tom Krisman Kule; Guzey, Ismail Cuneyt. (2019) The predictive properties of violence risk instruments may increase by adding items assessing sleep. Frontiers in Psychiatry. volum 10:323 (MAY).
  Academic article
• Lien, Mats; Bredeli, Einar Rørstad; Sivertsen, Børge; Kallestad, Håvard; Pallesen, Ståle; Smith, Otto Robert Frans; Faaland, Patrick; Ritterband, Lee M.; Thorndike, Frances P.; Vedaa, Øystein. (2019) Short and long-term effects of unguided internet-based cognitive behavioral therapy for chronic insomnia in morning and evening persons: a post-hoc analysis. Chronobiology International. volum 36 (10).
  Academic article
• Liu, Mengzhen; Jiang, Yu; Wedow, Robbee; Li, Yue; Brazel, David M.; Chen, Fang; Datta, Gargi; Davila-Velderrain, Jose; Mitchell, Amy; Skogholt, Anne Heidi; Sivertsen, Børge; Stordal, Eystein; Morken, Gunnar; Kallestad, Håvard; Heuch, Ingrid; Zwart, John-Anker; Fjukstad, Katrine Kveli; Pedersen, Linda Margareth; Johnsen, Marianne Bakke; Skrove, Marit Synnøve; Indredavik, Marit Sæbø; Drange, Ole Kristian; Bjerkeset, Ottar; Børte, Sigrid; Stensland, Synne; Choquet, Hélène; Docherty, Anna R.; Faul, Jessica D.; Foerster, Johanna R.; Fritsche, Lars; Gabrielsen, Maiken Elvestad; Gordon, Scott D.; Haessler, Jeffrey; Hottenga, Jouke-Jan; Huang, Hongyan; Jang, Seon-Kyeong; Jansen, Philip R.; Ling, Yueh; Mägi, Reedik; Matoba, Nana; McMahon, George; Mulas, Antonella; Orrú, Valeria; Palviainen, Teemu; Pandit, Anita; Reginsson, Gunnar W.; Smith, Jennifer A.; Taylor, Amy E.; Turman, Constance; Willemsen, Gonneke; Young, Hannah; Young, Kendra A.; Zajac, Gregory J.M.; Zhao, Wei; Zhou, Wei; Björnsdóttir, Gyda Thora; Boardman, Jason D.; Boehnke, Michael; Boomsma, Dorret I.; Chen, Chu; Davies, Gareth E.; Eaton, Charles B.; Winsvold, Bendik K S; Hveem, Kristian; Vrieze, Scott. (2019) Association studies of up to 1.2 million individuals yield new insights into the genetic etiology of tobacco and alcohol use. Nature Genetics. volum 51 (2).
  Academic article
• Scott, Janine Linda; Grierson, Ashlee; Lillian, Gehue; Kallestad, Håvard; MacMillan, Iain; Hickie, Ian. (2019) Can consumer grade activity devices replace research grade actiwatches in youth mental health settings?. Sleep and Biological Rhythms. volum 17 (2).
  Academic article
• Scott, Janine Linda; Langsrud, Knut; Vethe, Daniel; Kjørstad, Kaia; Vestergaard, Cecilie Lund; Faaland, Patrick; Lydersen, Stian; Vaaler, Arne; Morken, Gunnar; Torgersen, Terje; Kallestad, Håvard. (2019) A pragmatic effectiveness randomized controlled trial of the duration of psychiatric hospitalization in a trans- diagnostic sample of patients with acute mental illness admitted to a ward with either blue-depleted evening lighting or normal lighting conditions. Trials. volum 20:472.
  Academic article
• Vedaa, Øystein; Hagatun, Susanne; Kallestad, Håvard; Pallesen, Ståle; Smith, Otto Robert Frans; Thorndike, Frances P; Ritterband, Lee M.; Sivertsen, Børge. (2019) Long-Term Effects of an Unguided Online Cognitive Behavioral Therapy for Chronic Insomnia. Journal of Clinical Sleep Medicine (JCSM). volum 15 (1).
  Academic article

2018

• Kallestad, Håvard; Langsrud, Knut; Vedaa, Øystein; Stiles, Tore C; Vethe, Daniel; Lydersen, Stian; Ritterband, Lee; Morken, Gunnar; Sivertsen, Børge. (2018) A randomized noninferiority trial comparing Cognitive Behavior Therapy for Insomnia (CBT-I) delivered by a therapist or via a fully automated online treatment program. Sleep.
  Summary/Abstract
• Kallestad, Håvard; Vedaa, Øystein; Scott, Janine Linda; Morken, Gunnar; Pallesen, Ståle; Harvey, Allison G.; Gehrman, Phil; Thorndike, Frances; Ritterband, Lee; Stiles, Tore C; Sivertsen, Børge. (2018) Overcoming insomnia: Protocol for a large-scale randomised controlled trial of online cognitive behaviour therapy for insomnia compared with online patient education about sleep. BMJ Open. volum 8:e25152 (8).
  Academic article
• Langsrud, Knut; Kallestad, Håvard; Vaaler, Arne; Almvik, Roger; Palmstierna, Tom Krisman Kule; Morken, Gunnar. (2018) Sleep at night and association to aggressive behaviour; Patients in a psychiatric intensive care unit. Psychiatry Research. volum 263.
  Academic article
• Solheim, Brandy; Langsrud, Knut; Kallestad, Håvard; Engstrøm, Morten; Bjorvatn, Bjørn; Sand, Trond. (2018) Sleep structure and awakening threshold in delayed sleep-wake phase disorder patients compared to healthy sleepers. Sleep Medicine. volum 46.
  Academic article
• Solheim, Brandy; Olsen, Alexander; Kallestad, Håvard; Langsrud, Knut; Bjorvatn, Bjørn; Gradisar, Michael; Sand, Trond. (2018) Cognitive performance in DSWPD patients upon awakening from habitual sleep compared with forced conventional sleep. Journal of Sleep Research.
  Academic article
• Vethe, Daniel; Kallestad, Håvard; Jacobsen, Henrik Børsting; Landrø, Nils Inge; Borchgrevink, Petter Chr.; Stiles, Tore C. (2018) The relationship between improvement in insomnia severity and long-term outcomes in the treatment of chronic fatigue. Frontiers in Psychology. volum 9:1764.
  Academic article

2017

• Jacobsen, Henrik Børsting; Kallestad, Håvard; Landrø, Nils Inge; Borchgrevink, Petter Chr.; Stiles, Tore Charles. (2017) Processes in acceptance and commitment therapy and the rehabilitation of chronic fatigue. Scandinavian Journal of Psychology. volum 58 (3).
  Academic article

2016

• Kallestad, Håvard; Wullum, Elin; Scott, Janine Linda; Stiles, Tore Charles; Morken, Gunnar. (2016) The long-term outcomes of an effectiveness trial of group versus individual psychoeducation for bipolar disorders. Journal of Affective Disorders. volum 202.
  Academic article
• Krane-Gartiser, Karoline; Steinan, Mette Kvisten; Langsrud, Knut; Vestvik, Vegard; Sand, Trond; Fasmer, Ole Bernt; Kallestad, Håvard; Morken, Gunnar. (2016) Mood and motor activity in euthymic bipolar disorder with sleep disturbance. Journal of Affective Disorders. volum 202.
  Academic article
• Langsrud, Knut; Vaaler, Arne Einar; Kallestad, Håvard; Morken, Gunnar. (2016) Sleep patterns as a predictor for length of stay in a psychiatric intensive care unit. Psychiatry Research. volum 237.
  Academic article

2015

• Kallestad, Håvard; Jacobsen, Henrik Børsting; Landrø, Nils Inge; Borchgrevink, Petter Chr.; Stiles, Tore C. (2015) The role of insomnia in the treatment of chronic fatigue. Journal of Psychosomatic Research. volum 78 (5).
  Academic article

2014

• Solheim, Brandy; Langsrud, Knut; Kallestad, Håvard; Olsen, Alexander; Bjorvatn, Bjørn; Sand, Trond. (2014) Difficult morning awakening from rapid eye movement sleep and impaired cognitive function in delayed sleep phase disorder patients. Sleep Medicine. volum 15 (10).
  Academic article
• Steinan, Mette Kvisten; Krane-Gartiser, Karoline; Langsrud, Knut; Sand, Trond; Kallestad, Håvard; Morken, Gunnar. (2014) Cognitive behavioral therapy for insomnia in euthymic bipolar disorder: study protocol for a randomized controlled trial. Trials. volum 15 (24).
  Academic article

2013

• Krane-Gartiser, Karoline; Steinan, Mette Kvisten; Langsrud, Knut; Sand, Trond; Kallestad, Håvard; Morken, Gunnar. (2013) Sleep architecture in euthymic bipolar disorder and comorbid insomnia. Bipolar Disorders. volum 15.
  Summary/Abstract
• Steinan, Mette Kvisten; Krane-Gartiser, Karoline; Langsrud, Knut; Sand, Trond; Kallestad, Håvard; Morken, Gunnar. (2013) Cognitive behavioral theapy for insomnia in euthymic bipolar disorder: a randomized controlled trial. Bipolar Disorders. volum 15.
  Summary/Abstract

2012

• Kallestad, Håvard; Hansen, Bjarne; Langsrud, Knut; Ruud, Torleif; Morken, Gunnar; Stiles, Tore C; Gråwe, Rolf W.. (2012) Impact of sleep disturbance on patients in treatment for mental disorders. BMC Psychiatry. volum 12 (179).
  Academic article

2011

• Kallestad, Håvard; Hansen, Bjarne; Langsrud, Knut; Ruud, Torleif; Morken, Gunnar; Stiles, Tore C; Gråwe, Rolf W.. (2011) Differences between patients’ and clinicians’ report of sleep disturbance: a field study in mental health care in Norway. BMC Psychiatry. volum 11.
  Academic article

2010

• Kallestad, Håvard; Hansen, Bjarne; Langsrud, Knut; Hjemdal, Odin; Stiles, Tore C. (2010) Psychometric properties and the predictive validity of the Insomnia Daytime Worry Scale: A pilot study. Cognitive Behaviour Therapy. volum 39 (2).
  Academic article
• Kallestad, Håvard; Valen, Jakob; McCullough, Leigh; Svartberg, Martin; Høglend, Per Andreas; Stiles, Tore C. (2010) The relationship between insight gained during therapy and long-term outcome in short-term dynamic psychotherapy and cognitive therapy for cluster C personality disorders. Psychotherapy Research. volum 20 (5).
  Academic article

2007

• Kallestad, Håvard; Langsrud, Knut; Hansen, Bjarne. (2007) Søvndeprivasjon som antidepressiv behandling. Tidsskrift for Den norske legeforening. volum 127 (10).
  Scientific translation/review