Illusions of the senses tell us the truth about perception -Teuber,1960 Illusions are fascinating to most people. Some of the illusions have been known since antiquity. The scientific study of illusions dates back to the beginning of the nineteenth century when scientists got interested in perception. Since then there has been enduring interest, and illusions have been used as tools in the study of perception. An important strategy in finding out how perception operates is to observe situations in which mis-perceptions occur. By carefully altering the stimuli and testing the changes in visual perception psychologists tried to gain insight into the principles of perception. An optical illusion (also called a visual illusion) is characterized by visually perceived images that are deceptive or misleading.Most effects have their...
"It is only when they go wrong that machines remind you how powerful they are."