Your brain has its own built-in GPS, made of cells that fire in one exact spot

John O'Keefe discovered hippocampus neurons that activate only when an animal occupies a specific location — 'place cells.' May-Britt and Edvard Moser later found neighbouring 'grid cells' that lay a hexagonal coordinate system over the same space. The 2014 Nobel Prize-winning findings revealed the brain's internal positioning system.

— Nobel Prize Committee, Nobel Prize in Physiology or Medicine 2014 — Karolinska Institute, 2014