I know I said I wasn't gonna post, but this article about a forthcoming paper on working single-neuron functional imaging is really cool:
"...The ability to visualize what individual neurons in a circuit are doing while that circuit is functioning opens up new roads to understanding the neural basis of visual perception," said David Fitzpatrick, a professor of neurobiology at Duke University who is not an author on the paper but also studies visual cortex function. "By combining markers for different types of neurons with this calcium imaging technique to look at their activity, we will have a powerful approach to 'circuit breaking' in the visual cortex. The same principle will undoubtedly be applied to cortical areas responsible for other sensory modalities, as well as motor functions and higher cognitive processes."