Bergen Søvn og Kronobiologinettverk

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

The project aims to investigate whether light exposure through ceiling-mounted LED lighting can improve sleep, circadian rhythm, and behavioral issues among dementia patients in nursing homes. The Dem. light study is based on a randomized controlled design and is registered in clinical trials under the identifier NCT 03357328



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

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

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.

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.

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.

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.