Abstract
Festinger et al conflrm the findings of previous investigators that the magnitude of the Müller-Lyer illusion diminishes with prolonged observation of the test figure, but only if gross eye movements are allowed. To explain this phenomenon, they advance the hypothesis that “the perception of length is determined by efferent readiness activated by the visual input.” We offer evidence that the hypothesis is incorrect.
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DeSISTO, M. J., & MOSES, F. L. Saccadic eye movement response to Müller-Lyer stimuli. Paper read at Eastern Psychological Association Meeting, Washington, D.C., April 19, 1968.
FESTINGER, L., WHITE, C. W., & ALLYN, M. R. Eye movements and decrement in the Müller-Lyer illusion. Perception & Psychophysics, 1968, 3, 376–382.
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McLAUGHLIN, S. C, KELLY, M. J., ANDERSON, R. E., & WENZ, T. G. Localization of a peripheral target during parametric adjustment of saccadic eye movements. Perception & Psychophysics, 1968, 4, 45–48.
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This research was supported by grants from the National Science Foundation and the Public Health Service (Division of Neurological Diseases and Blind ness) to the senior author.
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Mclaughlin, S.C., Desisto, M.J. & Kelly, M.J. Comment on “Eye movements and decrement in the Müller-Lyer illusion”. Perception & Psychophysics 5, 288 (1969). https://doi.org/10.3758/BF03209564
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DOI: https://doi.org/10.3758/BF03209564