You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract McDonald's Challenges You Not to Get Distracted by a Big Mac Hidden Camera Prank and 'Mind Games' Site Aim to Prove That Big Macs Invade Your Brain , Published on February 12, 2014 1 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Register Now Already a member? Log in.