See inside your brain in real time: Christopher deCharms on

Neuroscientist Christopher deCharms demos an amazing new way to use fMRIs to watch the brain in action. Using this technology, if you move your arm, get angry, feel pain, you can see what it looks like in your brain as it happens -- and then you can learn to control it. The applications for real-time fMRI start with pain management and run on into the realm of science fiction, but this technology is very real.