title: Observations on the divided line illusion.
abstract: Variations on the divided line illusion are presented, and these variations are used to illustrate the efficacy of assimilation theory in accounting for the results reported with this illusion.
mesh_terms: D005556:Form Perception; D006801:Humans; D007088:Illusions; D009903:Optical Illusions; D009949:Orientation; D012858:Size Perception