Abstract
The Ss made judgments of the frontoparallel plane monocularly and binocularly by adjusting the position of a rotatable thin luminous line viewed in darkness. The judgments were made before and after a 10-min period of monocular inspection of a luminous outline frontoparallel trapezoid which was the projection of a rectangle rotated in depth. Verbal reports indicated normalization of perspectival slant depth, i.e., the inspection figure appeared less rotated, and the line settings exhibited an aftereffect bf normalization. These findings may contribute toward an account of certain previously unexplained observations reported in an earlier study by Epstein and Morgan-Paap (1974) dealing with adaptation to uniocular image magnification.
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This investigation was supported by Research Grant MH16390 awarded to the first author by the National Institute of Mental Health.
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Epstein, W., Morgan-Paap, C.L. Aftereffect of inspection of a perspectival stimulus for slant depth: A new normalization effect. Perception & Psychophysics 16, 299–302 (1974). https://doi.org/10.3758/BF03203946
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DOI: https://doi.org/10.3758/BF03203946