The treadmill chambers provide each mouse with 1.75" (4.4 cm) of headroom and are 2" (5 cm) wide. The length of the running surface is 12" (25.4 cm), and the volume of the enclosure is approximately 2 ...

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.