Marin, M. T., T. T. Araújo, M. M. F. Rezende, and R. Ribeiro-Barbosa. “Behavioral Alterations Induced by Absence of Circadian Light Rhythm: Effects of Constant Light or Constant Dark on Depression-Like Behaviors and Locomotor Activity in Rats”. Bioscience Journal, vol. 31, no. 6, Nov. 2015, pp. 1837-184, doi:10.14393/BJ-v31n6a2015-28247.