In visual perception, change blindness is the phenomenon that
occurs when a person viewing a visual scene apparently fails to
detect large changes in the scene. For change blindness to
occur, the change in the scene typically has to coincide with
some visual disruption such as a saccade (eye movement) or a
brief obscuration of the observed scene or image. When looking
at still images, a viewer can experience change blindness if
part of the image changes. * * * For a sample of related
Situationist posts see “‘The Grand Illusion’ — Believing We See
the Situation,” “Neuroscience and Illusion,” “Brain Magic,”
“Magic is in the Mind,” “The Situation of Illusion” “The Heat is
On,” and “The Situation of Climate Change,” or click here for a
collection of posts on illusion.