Change-blindness as a result of [lsquo]mudsplashes[rsquo]

Change-blindness as a result of [lsquo]mudsplashes[rsquo]

Change-blindness as a result of 'mudsplashes'

J. KEVIN O'REGAN*, RONALD A. RENSINK† & JAMES J. CLARK‡

* Laboratoire de Psychologie Expérimentale, CNRS, Université René Descartes, 28 rue Serpente, 75006 Paris, France
e-mail: oregan@ext.jussieu.fr
† Cambridge Basic Research, Nissan Research and Development, 4 Cambridge Center, Cambridge, Massachusetts 02142, USA
‡ Department of Electrical Engineering, McGill University, Montreal, Québec H3A 2A7, Canada



Change-blindness1,2 occurs when large changes are missed under natural viewing conditions because they occur simultaneously with a brief visual disruption, perhaps caused by an eye movement3,4, a flicker5, a blink6, or a camera cut in a film sequence7. We have found that this can occur even when the disruption does not cover or obscure the changes. When a few small, high-contrast shapes are briefly spattered over a picture, like mudsplashes on a car windscreen, large changes can be made simultaneously in the scene without being noticed. This phenomenon is potentially important in driving, surveillance or navigation, as dangerous events occurring in full view can go unnoticed if they coincide with even very small, apparently innocuous, disturbances. It is also important for understanding how the brain represents the world.