Le site de vulgarisation scientifique de l’Université de Liège. ULg, Université de Liège
Melanopsin

The light which reaches the eye sends two types of information to the brain. First of all visual information through cones and rods situated on the retina. Then non-visual information (in other words light intensities, for example) transmitted by melanopsin, a photosensitive protein also contained within the retina. It is information transmitted by melanopsin which influences the quality and duration of our sleep.

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