Results 161 to 170 of about 3,864 (188)
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2017
Abstract When the vertex of an occluded angle geometrically belongs to the side of the occluding surface, the occluded angle looks distorted. This characteristic effect of coincidental occlusion—called the Gerbino illusion—is consistent with the phenomenal rounding of angles observed under conditions of symmetrical occlusion.
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Abstract When the vertex of an occluded angle geometrically belongs to the side of the occluding surface, the occluded angle looks distorted. This characteristic effect of coincidental occlusion—called the Gerbino illusion—is consistent with the phenomenal rounding of angles observed under conditions of symmetrical occlusion.
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Amodal Completion in Visual Search
Psychological Science, 2004In a previous study, search for a notched-disk target abutting a square among complete-disk nontargets and squares was inefficient in 250-ms exposures, but relatively efficient in 100-ms exposures. This finding was interpreted as evidence that amodal completion proceeds through a mosaic and then a completion stage, with the latter preempting the ...
R. Rauschenberger +3 more
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Late influences on perceptual grouping: Amodal completion
Psychonomic Bulletin & Review, 1996Perceptual grouping is generally assumed to be an early visual process that operates on a previously unorganized image-based representation. The present experiment shows that elements perceived as occluded by a closer surface tend to be grouped with elements having the same shape as the amodally completed percept rather than with those having the same ...
Stephen E. Palmer +2 more
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Revisiting Amodal Completion and Knowledge
Philosophia, 2019In a recent paper, Helton and Nanay (Analysis, 79(3), 415–423, 2019) present a new argument against two modal accounts of knowledge—safety and sensitivity. Their argument is based on the phenomenon of amodal completion (i.e. the phenomenon of representing occluded parts of a perceived object).
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Amodal Completion as Reflected by Gaze Durations
Perception, 2004In two experiments amodal completion of partly occluded shapes was investigated by recording eye movements in a directed visual-search task. Participants searched arrays of shapes in a prescribed order for target figures that could partly be occluded. Longer gaze durations were found on occlusion patterns than on truncated control patterns for targets
Gijs, Plomp +3 more
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Amodal Completion is Not Completed Only behind the Occluder
Perception, 2009We investigated amodal completion with changes in two parameters: figure orientation, and the shape of the occluding and occluded figures. First, Markovich's [2002, Visual Mathematics4(1); http://www.mi.sanu.ac.rs/vismath/fila ] figure was presented in vertical, horizontal, and diagonal orientations. The results supported Markovich's finding of amodal
Midori, Takashima +2 more
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Visual Illusory Productions with or without Amodal Completion
Perception, 1991A new type of illusory contour is presented whose appearance is generated by the graphic representation of groups of human figures interacting in a coordinated manner with external reality. When numerous pictorial indicators of cause-effect relationships are provided, and appropriate techniques and sufficiently ambiguous observation conditions are ...
BONAIUTO, Paolo +2 more
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Modal and Amodal Completion Generate Different Shapes
Psychological Science, 2004Mechanisms of contour completion are critical for computing visual surface structure in the face of occlusion. Theories of visual completion posit that mechanisms of contour interpolation operate independently of whether the completion is modal or amodal—thereby generating identical shapes in the two cases.
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Amodal completion: Seeing or thinking?
1982Based on a conference on 'Processes of perceptual organization and representation' held in Abano, Italy, in June ...
G. Kanizsa, GERBINO, WALTER
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2005
The visual environment of biological organisms is mostly made of opaque objects that may well overlap and partly hide each other. In our visual experience, however, when an object is partially concealed by an obstacle, we do not perceive only the pieces or fragments of that object: the parts that are directly visible usually suffice for recognition of ...
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The visual environment of biological organisms is mostly made of opaque objects that may well overlap and partly hide each other. In our visual experience, however, when an object is partially concealed by an obstacle, we do not perceive only the pieces or fragments of that object: the parts that are directly visible usually suffice for recognition of ...
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