Thanks to a mouse watching clips from "The Matrix," scientists have created the largest functional map of a brain to date—a diagram of the wiring connecting 84,000 neurons as they fire off messages.

After nine years of painstaking work, an international team of researchers on Wednesday published a precise map of the vision centers of a mouse brain, revealing the exquisite structures and ...

Scientists achieved “a milestone” by charting the activity and structure of 200,000 cells in a mouse brain and their 523 ...