What is the visual perception term change blindness?
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. Background The first explorations of change blindness appear to have been conducted by George McConkie and his colleagues in the late 1970s, focusing on changes made to words and text during saccadic eye movements. A student of McConkie’s, John Grimes, extended this phenomenon to the domain of scene perception (in a conference presentation in 1992, later published in a book chapter in 1996). Grimes showed that people miss large changes to scenes when the changes are introduced during an eye movement. For example, many people failed to
