From a cubic millimeter of brain tissue, scientists have constructed a precise, 3D map of the activity in a mouse’s brain, detailing 84,000 neurons and more than 500 million synapses.

A mouse watched YouTube. Then scientists mapped a tiny piece of its brain. Scientists say the map of a speck of a mouse's brain could be as transformative as the Human Genome Project.

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 ...

WASHINGTON (AP) — 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 ...

WASHINGTON — 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 ...

We’re looking at one tiny part … of a mouse’s brain and the beauty and complexity that you can see in these actual neurons and the hundreds of millions of connections between them.” How we think, feel ...

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 ...

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 ...

WASHINGTON (AP) — 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 ...

WASHINGTON (AP) — 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 ...

WASHINGTON — 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 ...