In this new RSA Animate, renowned psychiatrist and writer Iain McGilchrist explains how our 'divided brain' has profoundly altered human behaviour, culture and society. Taken from a lecture given by Iain McGilchrist as part of the RSA's free public events programme. To view the full lecture, go to http://www.youtube.com/watch?v=SbUHxC.... The RSA is a charity dedicated to driving social progress and spreading world-changing ideas.