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.
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References
1.
CarpenterR. H. S.BlakemoreC.Interactions between orientations in human vision. Experimental Brain Research, 1973, 18. 287–303.
2.
GreeneE.The relative contribution of contact and target lines in the magnitude of the Poggendorff effect. Perception, 1987, 10, 124–125.
