Publication at Central Library of Charles University |
2016
Abstract
Light is considered one of the most important factors influencing circadian system in humans. Synchronizing effects of light depend on the accuracy of timing, intensity, or durati-on of light stimulus and on its wavelength.
Biological clocks located in the suprachiasmatic nuclei are set not only by signals from rods and cones but also through input from retinal gan-glion cells. Their melanopsin-based photoreceptive system is especially sensitive to the blue end of light spectrum, with wavelengths of 460-480nm.
This overview of research findings offers insight on current topics related to the use of blue light, emphasising its influence on circadian rhythms, sleep and cognitive performance