Abstract
The angular function of the rod-and-frame illusion has been attributed to the effects of the major, virtual axes of the frame. Only one of two possible interpretations of this hypothesis adequately accounted for vertical settings made in the presence of outline frames and intersecting line patterns tilted between vertical and 45 deg. The results obtained with intersecting line patterns did not appear to be explicable by torsional effects or the simple addition of tilted-line illusions.
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This research was supported by University of Sydney research grants, 1971–1972.
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Wenderoth, P.M. The effects of tilted outline frames and Intersecting line patterns on judgments of vertical. Perception & Psychophysics 14, 242–248 (1973). https://doi.org/10.3758/BF03212384
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DOI: https://doi.org/10.3758/BF03212384