title: Both tilt and misalignment are manifestations of angular induction.
abstract: With a Poggendorff configuration one sees two obliques as being misaligned, and with a Judd configuration one sees them as having different tilts, i.e., as being misoriented. It has been suggested that these are separate illusory effects. I submit, however, that one can see misorientation in the double Poggendorff and misalignment with a Judd-like configuration. It seems likely that both perceptual effects are manifestations of the same process.
authors.affiliation: Department of Psychology, University of Southern California, Los Angeles 90089-1061.
authors.forename: E
authors.initials: E
authors.lastname: Greene
mesh_terms: D001288:Attention; D004193:Discrimination Learning; D006801:Humans; D009903:Optical Illusions; D009949:Orientation; D010364:Pattern Recognition, Visual; D011601:Psychophysics