Before revision: Categories of visual illusions Mach bands = visual illusion of brightness (intensive property) 120px|Illusions of position (Poggendorff), orientation (Zöllner) and, below, length (Müller-Lyer) |Hering Illusion of curvature Delboeuf Illusion of size: left inner circle and right outer circle are actually equal Vertical-horizontal Illusion Shifted chessboard illusion Visual or optical illusions can be categorized according to the nature of the difference between objects and percepts.
After revision: Categories of visual illusions Mach bands = visual illusion of brightness (intensive property) 120px|Illusions of position (Poggendorff), orientation (Zöllner) and, below, length (Müller-Lyer) |Hering Illusion of curvature Delboeuf Illusion of size: left inner circle and right outer circle are actually equal Vertical-horizontal Illusion Shifted chessboard illusion Visual or Optical Illusions can be categorized according to the nature of the difference between objects and percepts.