title: What variables control (long-range) apparent motion?
abstract: A solid (ie filled-in) two-dimensional form is seen in motion toward another solid object of different shape and not towards an outline object of the same shape. The interpretation of these findings in terms of luminance-domain spatial frequency filtering is challenged by experiments in which the same results were obtained with kinetic and cyclopean forms.
mesh_terms: D003867:Depth Perception; D006801:Humans; D007088:Illusions; D007700:Kinetics; D008027:Light; D009039:Motion Perception; D009903:Optical Illusions; D011601:Psychophysics