Michael Rosen talks to neuroscientist Dr Julia Ravey about whether we think and act differently when speaking a non-native language. More and more people are finding themselves speaking multiple languages in our cross-cultural societies. But when we communicate in a different tongue, do we become a different person? From the decisions we make to the memories we form, research in neuroscience and psychology has begun exploring this fascinating area, which not only offers insights into the linguistic brain, but also calls into question if our ‘core self’ is a as stable as we like to think it is… Producer: Becky Ripley