A 36-year-old man, named Santiago Ramon y Cajal, set up a home laboratory in his home in Barcelona in 1888 and began studying slices of human brains under his microscope, coming from the abundant corpses of the neighboring Hospital de la Santa Cruz. Cajal came across a “inextricable forest” on the other side of the lens, but he entered that jungle and demonstrated that the brain is organized in individual cells, with neurons as the main protagonists of thought. The Italian neuroscientist Andrea Volterra For years he has told Cajal's story to his students at the University of Lausanne (Switzerland), but this Wednesday he is the one who announces the discovery of “a new type of cell” in the human brain.
