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Goodhew, Stephanie C.; Visser, Troy A. W.; Lipp, Ottmar V.; Dux, Paul E. – Journal of Experimental Psychology: Human Perception and Performance, 2011
In object substitution masking (OSM) a sparse, temporally trailing 4-dot mask impairs target identification, even though it has different contours from, and does not spatially overlap with the target. Here, we demonstrate a previously unknown characteristic of OSM: Observers show reduced masking at prolonged (e.g., 640 ms) relative to intermediate…
Descriptors: Visual Perception, Visual Stimuli, Proximity, Attention
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Strother, Lars; Kubovy, Michael – Journal of Experimental Psychology: Human Perception and Performance, 2006
The authors conducted 3 experiments to explore the roles of curvature, density, and relative proximity in the perceptual organization of ambiguous dot patterns. To this end, they developed a new family of regular dot patterns that tend to be perceptually grouped into parallel contours, dot-sampled structured grids (DSGs). DSGs are similar to the…
Descriptors: Experimental Psychology, Proximity, Visual Perception, Experimental Psychology