Chellappa, Sarah Laxhmi Non-visual effects of light on melatonin, alertness and cognitive performance: can blue-enriched light keep us alert? [electronic resource] - PloS one Jan 2011 - e16429 p. digital Publication Type: Controlled Clinical Trial; Journal Article; Research Support, Non-U.S. Gov't ISSN: 1932-6203 Standard No.: 10.1371/journal.pone.0016429 doi Subjects--Topical Terms: Circadian Rhythm--radiation effectsCognition--radiation effectsColorCross-Over StudiesFluorescenceHumansLightMaleMelatonin--radiation effectsReaction Time--radiation effectsYoung Adult