Scientists map miles of wiring in mouse brain

What happened

Scientists Wednesday unveiled a functional 3-D map of the 84,000 neurons in a cubic millimeter of a mouse's brain, along with more than three miles of microscopic wiring — axons and smaller dendrites — and 523 million synapses connecting them.

The massive dataset, published in the journal Nature, and color-coded rendering of how each neuron communicates, mark a big "step toward unraveling the mystery of how our brains work," The Associated Press said.

Who said what

The mouse brain map ...