Largest Brain Wiring Diagram to Date Is Published The partial fruit fly “connectome” contains approximately 25,000 neurons and 20 million synapses ...

In 1979, biologist Francis Crick claimed it would be impossible to create an accurate diagram of the brain’s wiring and neuronal activity—even within just a cubic millimeter of brain tissue.

"This paper provides a basic structure of neural networks in the mammalian brain. This basic structure will guide us in investigating behavioral strategy," Sun continues.