Dr. Jeff Lichtman wants to know what's going on inside your head.
Lichtman and his Harvard research team are on the cutting edge - quite literally - of the emerging field of connectomics.
They are taking impossibly-thin slices of a mouse's brain and photographing them in an electron microscope to create a three-dimensional, neuron-by-neuron map of the mind. The undertaking, which will take years, has been compared to the human genome project.
This segment aired on January 4, 2011.