title: McCollough effect and eye optics.
abstract: Astigmatism induced by cylindrical lenses leads to colour sensations similar to the McCollough effect. Consequences for the design of experiments and a new interpretation of the McCollough effect are suggested.
mesh_terms: D000065:Accommodation, Ocular; D001251:Astigmatism / Q000503:physiopathology; D001921:Brain / Q000502:physiology; D003118:Color Perception; D005123:Eye / Q000503:physiopathology; D005366:Figural Aftereffect; D006801:Humans; D009474:Neurons / Q000502:physiology; D009799:Ocular Physiological Phenomena; D009949:Orientation; D014793:Visual Cortex / Q000502:physiology