The role of expectations in change detection and attentional capture
Daniel J. Simons and Stephen R. Mitroff

Seven QuickTime movies copyright 2000, Daniel J. Simons, all rights reserved. They should not be reproduced, distributed, or otherwise used for any purpose without expressed written permission directly from Daniel Simons ( The publisher of this CD distribution and of the Vision and Attention book does not own the copyright to these movie clips.

Included are examples of stimuli from the following papers:

Levin, D. T., & Simons, D. J. (1997). Failure to detect changes to attended objects in motion pictures. Psychonomic Bulletin and Review, 4(4), 501-506.

Simons, D. J., & Chabris, C. F. (1999). Gorillas in our midst: Sustained inattentional blindness for dynamic events. Perception, 28, 1059-1074.

And video of two participants from the following paper:

Simons, D. J., & Levin, D. T. (1998). Failure to detect changes to people in a real-world interaction. Psychonomic Bulletin and Review, 5(4), 644-649.

More information about these experiments as well as additional examples from these and other studies of change blindness and inattentional blindness are available at the following web site: