Psychologist Prof. Dr Christian Doeller from the Max Planck Institute for Human Cognitive and Brain Sciences has students in Leipzig play computer games in a scanner to investigate how their brains work. The test subjects hold a keyboard to navigate or make decisions. ADVERTISEMENT ADVERTISEMENT The neuroscientist and his teams at the Doellerlab want to find out one thing in particular: what are the most important coding principles of the brain that make human thought possible? Doeller