Title: Distortion of parallel lines in geometrical fields as a function of size of the display
Abstract: The illusory distortion of two parallel lines on the Hering, Wundt, and Orbison fields was studied as a function of the size of the display. The Hering and Wundt fields yielded complementary illusions which developed with the size of the display. The Orbison field yielded a lesser amount of illusion and different development.