Virtual Sky Study Data

Complete, anonymized and annotated data set of the chronobiology study "Virtual Sky" on the impact of the three light scenarios on subjective and objective measures of alertness, cognitive performance, wellbeing, visual comfort, contrast sensitivity, and cortisol levels in 18 healthy young male volunteers in a within-participant cross-over study design. In a laboratorial office environment, three lighting scenarios were presented during the day: two lighting conditions with nature-adapted spectral light distributions, one with static and one with dynamic clouds, and a standard office lighting condition. Most measures were taken at three day times under each light condition. Conducted at the Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Basel, Switzerland