Researchers mapped 84,000 neurons in a mouse brain after it watched video clips. The 3D map links structure and activity.

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.

To better understand decision-making, researchers can create computational models—groups of equations that aim to predict what decisions people would make when faced with a set of choices. For example ...

Just like food, water, and air, sleep is essential. It plays a critical role in memory consolidation, learning, and emotional regulation. Importantly, sleep also enables the brain to clear out ...