Skip to main content
. Author manuscript; available in PMC: 2009 Nov 11.
Published in final edited form as: Curr Biol. 2008 Nov 11;18(21):1707–1712. doi: 10.1016/j.cub.2008.09.025

Figure 1.

Figure 1

Psychophysical experiment. Left: To directly compare 2D and 3D size judgments, a 2D ring located outside the 3D scene was adjusted to match the front and back rings. The inner and outer radii of the 2D ring could be adjusted independently. Right: The behavioral effect was quantified by dividing the adjusted size of the 2D ring by the 3D ring size. The front and back rings in the 3D scene were judged to be smaller and larger, respectively, than an equivalent 2D ring. Error bars represent S.E.M.