Scientists grew up "a human brain" which got accustomed in a brain of a mouse and started reacting to light

The tissues of a human brain grown up from stem cells implanted into a brain of a mouse then scientists for the first time could watch reaction of external irritants to the artificial fabrics implanted in an alien brain. Special graphene electrodes which combined transparency and electric sensitivity helped with it. Progress in researches with stem cells reached before that scientists learned to grow up the three-dimensional cellular populations imitating the real human organs. And though before cultivation of full-fledged bodies still far, organelles open opportunity to study influence...