Iain McGilchrist is a psychiatrist and writer, committed to the idea that the mind and brain can be understood only by seeing them in the broadest possible context, that of the whole of our physical and spiritual existence, and of the wider human culture in which they arise -- the culture which helps to mould, and in turn is moulded by, our minds and brains. His talk 'The Divided Brain' was a Best of the Web pick by TED