This video was created by Daniel Levin and Daniel J. Simons (copyrighted 1997) and is provided for individual viewing purposes only. It is available for use in talks or presentations as part of DVDs from Viscog Productions, Inc.
(The University of Illinois is not in any way associated with Viscog Productions and this link does not represent an endorsement of Viscog Productions or its products by the University.)

Learn more about this video and experiment in Prof. Simons's new book (with Christopher Chabris). Visit the book website.