Abstract
Targets (squares with a gap on one side) were presented 0°, 2°, or 5° from the center of the fovea. The targets were surrounded by bar masks, and the spacing between targets and masks was varied parametrically. The resulting functions were used to estimate the extent of contour interaction at different target eccentricities. Our estimates for the extent of contour interaction were approximately .1° for targets at the center of the fovea, .24° for targets located 2° from the center, and .8° for targets 5° into the periphery.
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Wolford, G., Chambers, L. Contour interaction as a function of retinal eccentricity. Perception & Psychophysics 36, 457–460 (1984). https://doi.org/10.3758/BF03207498
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DOI: https://doi.org/10.3758/BF03207498