Figure 2From: Low-intensity blue-enriched white light (750 lux) and standard bright light (10 000 lux) are equally effective in treating SAD. A randomized controlled study Scores on daily self-rating questionnaires assessing mood, sleep quality and four aspects of activation. For abbreviations: see text. Higher scores on the AMS and GSQS mean more symptoms; higher scores on the AD-ACL mean fewer complaints.Back to article page