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date: 28 February 2020

Abstract and Keywords

This chapter describes and extends a new methodology for studying perceptual grouping. It entails the perception of dynamic grouping motion across one of two or more adjacent surfaces when the luminance of that surface is changed. The direction of the perceived motion is diagnostic for determining which of the connected surfaces are grouped together when different groupings are possible. Through this method the chapter addresses a wide variety of phenomena and issues related to the perceptual organization of surfaces that are connected by virtue of belonging to the same object, and demonstrates the potential of the method for furthering our understanding of how grouping processes contribute to object perception and recognition. The method is used to identify new grouping variables and is diagnostic for the grouping of connected surfaces even when their common boundaries are hidden (amodal completion).

Keywords: dynamic grouping, motion, connected surfaces, object perception, amodal completion

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