• Digital cognitive behaviour therapy for insomnia (dCBT-I): Chronotype moderation on intervention outcomes 

      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 (Peer reviewed; Journal article, 2022)
      Using data from 1721 participants in a community-based randomized control trial of digital cognitive behavioural therapy for insomnia compared with patient education, we employed linear mixed modelling analyses to examine ...
    • Dysfunctional beliefs and attitudes about sleep (DBAS) mediate outcomes in dCBT-I on psychological distress, fatigue, and insomnia severity 

      Faaland, Patrick; Vedaa, Øystein; Langsrud, Knut; Sivertsen, Børge; Lydersen, Stian; Saksvik, Simen Berg; Vestergaard, Cecilie Lund; Kjørstad, Kaia; Vethe, Daniel; Ritterband, Lee M.; Harvey, Allison G.; Stiles, Tore Charles; Scott, Janine Linda; Kallestad, Håvard (Peer reviewed; Journal article, 2023)
      Objective/background Digital cognitive behavioral therapy for insomnia (dCBT-I) improves several sleep and health outcomes in individuals with insomnia. This study investigates whether changes in Dysfunctional Beliefs and ...
    • The effect of sleep-wake intraindividual variability in digital cognitive behavioral therapy for insomnia: a mediation analysis of a large-scale RCT 

      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 (Peer reviewed; Journal article, 2021)
      Study Objectives Digital cognitive behavioral therapy for insomnia (dCBT-I) is an effective treatment for insomnia. However, less is known about mediators of its benefits. The aim of the present study was to test if ...
    • Evening light environments can be designed to consolidate and increase the duration of REM-sleep 

      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 (Peer reviewed; Journal article, 2022)
      Evening exposure to short-wavelength light has disruptive effects on circadian rhythms and sleep. These effects can be mitigated by blocking short-wavelength (blue) frequencies, which has led to the development of evening ...
    • Sleep and work functioning in nurses undertaking inpatient shifts in a blue-depleted light environment 

      Kjørstad, Kaia; Faaland, Patrick; Sivertsen, Børge; Kallestad, Håvard; Langsrud, Knut; Vethe, Daniel; Vestergaard, Cecilie Lund; Harris, Anette Kristoffersen; Pallesen, Ståle; Scott, Jan; Vedaa, Øystein (Peer reviewed; Journal article, 2022)
      Background Blue-depleted light environments (BDLEs) may result in beneficial health outcomes for hospital inpatients in some cases. However, less is known about the effects on hospital staff working shifts. This study ...