Effects of bright light intervention for adaptation to night work: shift work simulation experiments
The study investigates how aspects of the physical work environment (light conditions) can be arranged to facilitate the workers´ adaptation to night work. This is important given the reported adverse consequences of shift work for performance, safety, and health. The project involves a series of three experimental, laboratory-based shift work simulation studies. The aim of the study investigate how different light conditions (intensity and color temperature), administered through light emitting diode (LED) based bright light integrated standard room lighting, affects adaptation to three consecutive simulated night shifts and readaptation to a day-oriented schedule. Outcomes are measures of alertness, cognitive performance, sleep and circadian rhythm.
Publications from the project:
- Sunde, E., Pedersen, T., Mrdalj, J., Thun, E., Grønli, J., Harris, A., Bjorvatn, B., Waage, S., Skene, D., Pallesen, S. Alerting effects of monochromatic blue light vs. red light during a simulated night shift. Clocks & Sleep 2020. Special issue; Clocks & Sleep in Human Basic research (ISSN 2624-5175).
- Sunde, E., Mrdalj, J., Pedersen, T., Thun, E., Bjorvatn, B., Grønli, J., Harris, A., Waage, S., Pallesen, S. Role of nocturnal light intensity on adaptation to three consecutive night shifts: a counterbalanced crossover study. Occup Environ Med 2020; 0: 1-7
- Sunde, E., Pedersen, T., Mrdalj, J., Thun, E., Grønli, J., Harris, A., Bjorvatn, B., Waage, S., Skene., D.J., Pallesen, S. Blue-Enriched White Light Improves Performance but Not Subjective Alertness and Circadian Adaptation During Three Consecutive Simulated Night Shifts. Frontiers in Psychology 11. 2020.