A first- and second-order motion energy analysis of peripheral motion illusions leads to further evidence of "feature blur" in peripheral vision.

PloS One
Arthur G ShapiroZhong-Lin Lu

Abstract

Anatomical and physiological differences between the central and peripheral visual systems are well documented. Recent findings have suggested that vision in the periphery is not just a scaled version of foveal vision, but rather is relatively poor at representing spatial and temporal phase and other visual features. Shapiro, Lu, Huang, Knight, and Ennis (2010) have recently examined a motion stimulus (the "curveball illusion") in which the shift from foveal to peripheral viewing results in a dramatic spatial/temporal discontinuity. Here, we apply a similar analysis to a range of other spatial/temporal configurations that create perceptual conflict between foveal and peripheral vision. To elucidate how the differences between foveal and peripheral vision affect super-threshold vision, we created a series of complex visual displays that contain opposing sources of motion information. The displays (referred to as the peripheral escalator illusion, peripheral acceleration and deceleration illusions, rotating reversals illusion, and disappearing squares illusion) create dramatically different perceptions when viewed foveally versus peripherally. We compute the first-order and second-order directional motion energy available in the ...Continue Reading

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Citations

Mar 26, 2016·Frontiers in Human Neuroscience·Rémy Allard, Jocelyn Faubert
Jul 15, 2015·Experimental Brain Research·Antonella LeonettiPaola Borroni
Oct 26, 2011·Vision Research·Katharine B PorterPeter U Tse
Mar 10, 2017·Proceedings. Biological Sciences·Anna E HughesDavid J Tolhurst
Dec 14, 2011·Current Biology : CB·James H HedgesJ Anthony Movshon

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