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Stuart Anstis; The furrow illusion: Peripheral motion becomes aligned with stationary contours. Journal of Vision 2012;12(12):12. doi: https://doi.org/10.1167/12.12.12.
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© ARVO (1962-2015); The Authors (2016-present)
A spot moved vertically up and down across a background grating that was tilted at 45°. In foveal vision this was seen accurately, but when viewed peripherally the spot's path was perceptually attracted toward the grating orientation, and at large eccentricities (>20°) the spot appeared to move at 45°, parallel to the grating. The intersections between the grating and the moving spot drive this illusion, revealing profound differences between fovea and periphery in processing visual motion.
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