Interchangeable backgrounds for cone afterimages.
D000221:Adaptation, Ocular; D000360:Afterimage / Q000502:physiology*; D003118:Color Perception / Q000502:physiology*; D003117:Color Vision Defects / Q000503:physiopathology; D006801:Humans; D008027:Light; D008297:Male; D010783:Photometry; D010786:Photoreceptor Cells / Q000502:physiology*