How to boost your creativity while you sleep

When you fall asleep do you dream of falling Tetris pieces? There’s a name for this – the Tetris Effect. Scientists have been investigating its use in boosting creativity and productivity and brands are trying to figure out how to monetise it. So just how malleable does playing video games make our minds? And is it possible for companies to use this research to hijack our dreams? Guest: Shelby Traynor for All In The Mind