Conclusions
In conclusion, the present study demonstrates the attention-enhancing effect of repeated brief daytime bright light exposures under laboratory conditions in a healthy sample. The results suggest different underlying mechanisms of action for acute light effects on simple and complex attentional tasks and warrant further basic research to better understand these mechanisms. In particular, we recommend the investigation of light-induced changes in event-related physiological responses (e.g., pupillary dynamics, phasic electrodermal activity, and heart rate responses).Integrative lighting, as defined by CIE (CIE S 017/E:2020