Φως που έντασή του αυξομειώνεται ρυθμικά ή χωρίς ρυθμό,].
Βιβλιογραφική Τεκμηρίωση:
Using Flickering Light to Enhance Nonimage-Forming Visual Stimulation in Humans. Garen V. Vartanian, Xiwu Zhao, Kwoon Y. Wong. Invest Ophthalmol Vis Sci. 2015 Jul; 56(8): 4680–4688. Published online 2015 Jul 23. doi: 10.1167/iovs.15-16468
Potential Biological and Ecological Effects of Flickering Artificial Light. Richard Inger, Jonathan Bennie, Thomas W. Davies, Kevin J. Gaston. PLoS One. 2014; 9(5): e98631. Published online 2014 May 29. doi: 10.1371/journal.pone.0098631
Effects of Constant Flickering Light on Refractive Status, 5-HT and 5-HT2A Receptor in Guinea Pigs. Bing Li, Xiumei Luo, Tao Li, Changyue Zheng, Shunmei Ji, Yuanyuan Ma, Shuangshuang Zhang, Xiaodong Zhou. PLoS One. 2016; 11(12): e0167902. Published online 2016 Dec 13. doi: 10.1371/journal.pone.0167902