Kurzweil 13/11/17 : "Researchers at MIT and Paris Descartes University have developed a technique for precisely mapping connections of individual neurons for the first time by triggering them with holographic laser light. The technique is based on optogenetics ; it's using light to stimulate or silence light-sensitive genetically modified protein molecules called “opsins” that are embedded in specific neurons) |...]. The new technique stimulates only the soma (body) of the neuron, not its connections...