Abstract
Eight subjects reported stereoscopic depth as a function of the magnitude and direction of disparity carried by a reversible grid or an irreversible solid surface. The former alternated between a diamond seen against a grating or a uniform rectangular grid pattern with stereoscopic depth reported only when the diamond was perceived. Depth was attenuated for the grid compared to the solid surface patterns. Disparity can be defined by perceptually extracted forms with depth present only when those forms are bounded by visible contours.
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Pandina, R., Zeller. P., & Lawson. R. B.Effects of retinal disparity upon reversible perspective figures. Pape: presented at Eastern Psychological Association meetings. New York. 1970.
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This research was conducted in the University of Vermont Visual Perception Laboratory and was supported in part by NSF Orant GB-43278 to R.B.L.
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Lawson, R.B., Packard, S., Lawrence, D. et al. Stereopsis from reversible and irreversible patterns. Perception & Psychophysics 21, 65–68 (1977). https://doi.org/10.3758/BF03199470
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DOI: https://doi.org/10.3758/BF03199470