Scientists now have a census of the cells in the human brain — a key step in creating a detailed map of the organ where our thoughts, movements and emotions originate.
Why it matters: Scientists say this parts list — combined with information still to be gleaned about the circuits they form — will help provide much-needed insights into diseases and disorders that affect the brain.
How it works: Researchers studied 100 tissue samples from different regions across the human brain and analyzed the RNA in millions of individual cells to see which genes in the brain were being expressed to make different proteins in the cell.