The Ri Christmas Lectures in 2011 will be presented by Professor Bruce Hood. Watch on BBC Four, iPlayer and catch up right here, on the Ri Channel, in January. Lecture 1: What's in your head? 27 December, 8pm, BBC Four Lecture 2: Who's in charge here anyway? 28 December, 8pm, BBC Four Lecture 3: Are you thinking what I'm thinking? 29 December, 8pm, BBC Four The Ri is on Twitter: http://twitter.com/ri_science and Facebook: http://www.facebook.com/royalinstitution and Tumblr: http://ri-science.tumblr.com/ Our editorial policy: http://www.rigb.org/home/editorial-policy Subscribe for the latest science videos: http://bit.ly/RiNewsletter