Cruise through hippocampal neuropil in a 5 min 15 sec video animating a section of a rat's brain and the synaptic connections created when the rat learns something new.

In An Intimate Look at Your Brain, Neurobiologist Kristin Harris takes us on a cruise through a block of the hippocampus, the part of the brain that stores memories. The brain’s synapses change structure when something new is learned. Watch dendrites, organelles, and glial cells “dance” in this 3D rendering, showing how biologists try to build a brain. Watch the full program of Architects of the Mind: A Blueprint for the Human Brain on YouTube.