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Updated: Apr 11, 2026

The Preparation of Electrohydrodynamic Bridges from Polar Dielectric Liquids
Published on: September 30, 2014
Poggendorff rides again!
Vebjørn Ekroll1, Alan Gilchrist2, Jan Koenderink3
1Laboratory of Experimental Psychology, University of Leuven (KU Leuven), Leuven, Belgium,
Abstract:
The Poggendorff illusion is one of the most exhaustively studied illusions. Can it be revived as an interesting problem? Perhaps by moving it to a slightly different domain. Here, we consider the occlusion of a subjectively linear ramp of tonal values. In a simple experiment, we find results closely resembling those of the geometrical Poggendorff. Yet, the "explanations" offered for the latter hardly apply to the former case. Depending upon one's perspective, this may be taken to "revive" the Poggendorff illusion.
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