Cancelling of pattern motion: dichoptic and monoptic observations.
Patterns consisting of concentric rings, moving inwards and outwards are superimposed dichoptically and optically. In both conditions opponent patterns motions lead to apparent standstills for considerable periods. In a tentative model both the apparent standstills and the remaining pattern motions are described as by-products, resulting from pattern combinations rather than as direct products of component motions.
D000360:Afterimage / Q000502:physiology; D005556:Form Perception / Q000502:physiology*; D006801:Humans; D008027:Light; D009039:Motion Perception / Q000502:physiology*; D010364:Pattern Recognition, Visual / Q000502:physiology*; D013997:Time Factors