Seeing begins before we actually see anything

How does vision work, and what happens in the brain during the process? As simple as this question may sound, it has yet to be scientifically clarified in full. Dr. Valentin Riedl of the Technical University of Munich (TUM) and his team have now been able to show that the distribution of the two most important neurotransmitters in the brain changes as soon as we open our eyes, regardless of whether we actually see anything. (Mehr in: Pressemitteilungen – idw – Informationsdienst Wissenschaft)