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Michael Morgan, Joshua Solomon; Attraction and Repulsion Between Local and Global Motion. Journal of Vision 2017;17(10):216. doi: 10.1167/17.10.216.
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© ARVO (1962-2015); The Authors (2016-present)
The interaction between local and global motion was studied with moving, circular clouds of dots, which could also move within the cloud. If the cloud moved near-vertically downwards (~270 deg) but the dots within it moved obliquely (240 or 300 deg) the apparent path of the cloud was attracted to that of the dots, as previously demonstrated with moving Gabor patches (Tse & Hseih, 2006; Lisi & Cavanagh, 2015). This attractive effect was enhanced in parafoveal viewing. A larger effect in the opposite direction (repulsion) was found for the perceived direction of the dots when they moved near-vertically (~270 deg) and the cloud containing them moved obliquely (240 or 300 deg). These results are discussed in relation to Gestalt principles of perceived relative motion, and more recent Bayes-inspired accounts of the interaction between local and global motion.
Meeting abstract presented at VSS 2017
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