title: Outlined elements, regular elements and coincidences in illusory-figure patterns.
abstract: When elements in a pattern which would otherwise produce an illusory figure are modified by outlining or by increasing their regularity (in accordance with a proposed measure of the latter quality), the illusory effect is much reduced. Both results reflect the principle that 'coincidences' in a display play little or no role in the process of segmentation when other circumstances tend to force critical edges to 'belong' to individual elements of the display.
authors.affiliation: University of California, Davis 95616.
authors.forename: T E
authors.initials: TE
authors.lastname: Parks
mesh_terms: D001288:Attention; D004193:Discrimination Learning; D006801:Humans; D009903:Optical Illusions; D009949:Orientation; D010364:Pattern Recognition, Visual; D011601:Psychophysics