title: How do the corresponding eyes avoid disturbing contour overlaps? Historical answers (1859 - 1981).
abstract: The visual system has a limited capacity to fuse overlapping impressions. It takes advantage of three principles of organization: (1) The mixing of different impressions resulting in a new entity (compensation principle); examples are the mixing of colors, dark and light at the retina, Fechner's paradox. The twelve researchers whose work is reported here analyzed two other unifying principles: (2) Selection by successive contrasts (polarization principle) and (3) subordination in a hierarchy of vision (differentiation principle).
authors.forename: H F
authors.initials: HF
authors.lastname: Piper
mesh_terms: D049672:History, 19th Century; D049673:History, 20th Century; D009885:Ophthalmology / Q000266:history*; D015357:Vision Disparity; D015348:Vision, Binocular