TED: Steve Ramirez and Xu Liu: A mouse. A laser beam. A manipulated memory. - Steve Ramirez / Xu Liu (2013)

Summary: Can we edit the content of our memories? It’s a sci-fi-tinged question that Steve Ramirez and Xu Liu are asking in their lab at MIT. Essentially, the pair shoot a laser beam into the brain of a living mouse to activate and manipulate its memory. In this unexpectedly amusing talk they share not only how, but -- more importantly -- why they do this. (Filmed at TEDxBoston.)