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Barenholtz, Elan; Feldman, Jacob – Cognition, 2006
Figure/ground assignment--determining which part of the visual image is foreground and which background--is a critical step in early visual analysis, upon which much later processing depends. Previous research on the assignment of figure and ground to opposing sides of a contour has almost exclusively involved static geometric factors--such as…
Descriptors: Visual Discrimination, Geometric Concepts, Cues, Animation
Flombaum, Jonathan I.; Scholl, Brian J. – Journal of Experimental Psychology: Human Perception and Performance, 2006
Meaningful visual experience requires computations that identify objects as the same persisting individuals over time, motion, occlusion, and featural change. This article explores these computations in the tunnel effect: When an object moves behind an occluder, and then an object later emerges following a consistent trajectory, observers…
Descriptors: Computation, Color, Motion, Memory
McLeod, Peter; Reed, Nick; Dienes, Zoltan – Journal of Experimental Psychology: Human Perception and Performance, 2006
The generalized optic acceleration cancellation (GOAC) theory of catching proposes that the path of a fielder running to catch a ball is determined by the attempt to satisfy 2 independent constraints. The 1st is to keep the angle of elevation of gaze to the ball increasing at a decreasing rate. The 2nd is to control the rate of horizontal rotation…
Descriptors: Optics, Physics, Motion, Simulation

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