Pilorz, V., Tam, S. E., Hughes, S., Pothecary, C. A., Jagannath, A., Hankins, M. W., & Peirson, S. N. (2016). Melanopsin regulates both sleep-promoting and arousal-promoting responses to light. Plos Biology, 14(6), 1-24. doi:10.1371/journal.pbio.1002482