One day, a few years ago, a  friend in Italy sent me an email telling me that one of my videos ( the video to the left of this text) was attached in an article (of the Scientific American Blog) entitled "The Nueroscience of Slydini's Paper Balls to the Hat Magic trick. The article as authored by Susana Martinez-Conde,  a professor of opthalmology, neurology, and physiology and pharmacology at SUNY Downstate Medical Center in Brooklyn, N.Y. She is author of the Prisma Prize-winning Sleights of Mind, along with Stephen L. Macknik and Sandra Blakeslee. Their forthcoming book, Champions of Illusion, will be published by Scientific American/Farrar, Straus and Giroux. 

As of this date (7/7/2017) the article is still on line