Abstract
Diamond-winged variants of the Müller-Lyer figure were used to test predictions of Virsu’s (1971) theory of the Müller-Lyer illusion based on efferent readiness for eye movements toward the figure’s center of gravity, A Müller-Lyer figure with diamond-shaped wings resulted in a greater center-of-gravity distance than the corresponding, conventional Müller-Lyer figure, but fin length and the rest of the figure remained constant; in Virsu’s study, fin length and center-of-gravity distance covaried. Results were consistent with Virsu’s data when we used the stimulus conditions that he reported. Results from a wider range of stimuli challenge Virsu’s theory, and thus are consistent with the conclusions of Brigell, Uhlarik, and Goldhorn (1977).
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Accepted by previous editor. Charles W Enksen
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Delucia, P.R., Longmire, S.P. & Kennish, J. Diamond-winged variants of the Müller-Lyer figure: A test of Virsu’s (1971) centroid theory. Perception & Psychophysics 55, 287–295 (1994). https://doi.org/10.3758/BF03207600
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DOI: https://doi.org/10.3758/BF03207600