Bergen Sleep and Chronobiology Network

Therapy Light Rooms for Improved Sleep in Dementia Patients (DEM.LIGHT)

The project is a randomized controlled trial investigating the effect of light exposure by therapy light rooms on sleep, circadian rhythm and behavioural and functioning in nursing home patients with dementia. The study is registered in clinical trials: NCT 03357328

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  1. Hjetland, G. J., Pallesen, S., Thun, E., Kolberg, E., Nordhus, I. H., & Flo, E. (2020). Light interventions and sleep, circadian, behavioral, and psychological disturbances in dementia: A systematic review of methods and outcomes. Sleep Medicine Reviews, 101310. The article is available in the main thesis. https://doi.org/10.1016/j.smrv.2020.101310
  2. Hjetland, G. J., Nordhus, I. H., Pallesen, S., Cummings, J., Tractenberg, R. E., Thun, E., Kolberg, E., Flo, E. (2020). An actigraphy-based validation study of the Sleep Disorder Inventory in the nursing home. Frontiers in Psychiatry, 11, 173. The article is available in the main thesis. https://doi.org/10.3389/fpsyt.2020.00173
  3. Hjetland, G. J., Kolberg, E., Pallesen, S., Thun, E., Nordhus, I. H., Bjorvatn, B., Flo-Groeneboom, E. (2021). Ambient bright light treatment improved proxy-rated sleep but not sleep measured by actigraphy in nursing home patients with dementia: a placebo-controlled randomised trial. BMC Geriatrics, 21(1), 312.
  4. Kolberg, E., Hjetland, G. J., Thun, E., Pallesen, S., Nordhus, I. H., Husebo, B. S., Flo-Groeneboom, E. (2021) The effects of bright light treatment on affective symptoms in people with dementia: a 24-week cluster randomized controlled trial. BMC Psychiatry, 21(1), 377.
  5. Kolberg, E., Pallesen, S., Hjetland, G. J., Nordhus, I. H., & Flo-Groeneboom, E. (2021). The Effect of Bright Light Treatment on Rest-Activity Rhythms in People with Dementia: A 24-Week Cluster Randomized Controlled Trial. CLOCKS & SLEEP, 3(3), 449-464.
  6. Kolberg, E., Pallesen, S., Hjetland, G. J., Nordhus, I. H., Thun, E., & Flo-Groeneboom, E. (2021). Insufficient melanopic equivalent daylight illuminance in nursing home dementia units across seasons and gaze directions. Lighting Research & Technology.