When migraine sufferers see the tell-tale squiggly lines, light flashes and blind spots of a migraine aura, they prepare for a migraine. When researchers see the brain image of an aura, they try to figure out what causes it and if there is a way to stop the start of the migraine. Now an international team of researchers has identified the electrical activity specific to the start of migraines and demonstrated a way to stop it in animal experiments.