Researchers have mapped the more than 500,000 connections in the intricate brain of a fruit fly larva. This map, they say, could help scientists figure out how learning changes the human brain, too.

Study: A physical wiring diagram for the human immune system.Image Credit: Yurchanka Siarhei/Shutterstock Background. Despite their therapeutic potential, the map of the surface interactions and ...

The connectome is, in essence, the wiring diagram of the brain. It's a physical map of all the neurons in the brain – or indeed the whole nervous system – and synaptic connections between them.