Watch: This is your dog's brain on humans

Dogs pay close attention to human behaviour and can even recognise facial expressions. In humans, we have specific brain regions for working that out, so scientists wanted to know how dog brains did it - and thus trained seven dogs to remain still in an MRI scanner so they could scan their brains. What the researchers found was that the temporal cortex, a pillar of social cognition in dogs, may help them process human faces. Video posted to YouTube by PLOS Media.