1. Figure Legend: From: Transparent layer constancy
Journal of Vision. 2012;12(12):7. doi: /
Figure Legend:
The concepts outlined in Figure 21 applied to size constancy. If subjects are asked to match the size of the sphere in the back by adjusting the radius of a sphere located in the front, they may come up with two different correct solutions: The left sphere would be an (abstract) representational match (X1 = X2) corresponding to full constancy because both spheres are interpreted as having identical radii in the inferred scene. The right sphere is a proximal match (P1 = P2), because both spheres are of identical retinal size. Actual matches based on the phenomenal impression (A1 = A2) are usually in between these extreme cases, but often closer to the proximal match. As can be appreciated in the image, this bias towards the proximal match is actually based on similarity in appearance and cannot be attributed to an inability to see relative depth or to derive the true size of the spheres in the scene. The (usually incomplete) shift away from the proximal match toward the constancy match is what Thouless (1931) calls a “regression to the real object.”
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