Mini brains and the potential of organoids

How can you study the human brain at the cell level, when you can't get inside to see these tiny processes in action? Well, you build your own brain in a dish of course! Organoids, or mini brains, are an exciting new area of neuroscience an have many applications, including personalised medicine. We talk to Professor Enrst Wolvetang, who's using this cutting-edge research to understand how brains are made.