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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.
Midori, Takashima +2 more
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Learning and Motivation, 2010
Abstract We trained two bonobos to discriminate among occluded, complete, and incomplete stimuli. The occluded stimulus comprised a pair of colored shapes, one of which appeared to occlude the other. The complete and incomplete stimuli involved the single shape that appeared to have been partially covered in the occluded stimulus; the complete ...
Yasuo Nagasaka +2 more
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Abstract We trained two bonobos to discriminate among occluded, complete, and incomplete stimuli. The occluded stimulus comprised a pair of colored shapes, one of which appeared to occlude the other. The complete and incomplete stimuli involved the single shape that appeared to have been partially covered in the occluded stimulus; the complete ...
Yasuo Nagasaka +2 more
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Effective CAPTCHA with Amodal Completion and Aftereffects
Proceedings of the 10th International Conference on Ubiquitous Information Management and Communication, 2016Accounts on web services are always exposed to the menace of attacks. Especially, a large number of accounts can be used for unfair uses such as stealth marketing or SPAM attacks. Needless to say, acquisition of those accounts and attacks are automatically done by software programs called bots.
Kouta Sawada, Ryuya Uda
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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 of unconsciously presented objects
Psychonomic Bulletin & Review, 2014In the visual environment, objects often appear behind occluding surfaces, yet they are automatically and effortlessly perceived as complete. Here, we examined whether visually occluded objects that are presented below the threshold of awareness are amodally completed.
Tatiana Aloi, Emmanouil, Tony, Ro
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Amodal completion is modulated by lightness similarity
Attention, Perception, & Psychophysics, 2013The strength of amodal completion is known to be modulated by contour relationships and global shape. Some researchers have shown that amodal completion also depends on surface similarity, but they have not distinguished the relative importance of similarity in surface representations either pre or post lightness constancy.
Juno, Kim +2 more
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Smooth pursuit of amodally completed images
Experimental Eye Research, 2019In order to evaluate the effect of the parafoveal area of the retina on smooth pursuit, we compared the horizontal smooth pursuit of visible and amodally completed stimuli in people with central vision loss and controls. In the amodally completed stimuli, a black mask covered the bottom vertex of a moving diamond which is the feature whose movement ...
Esther G. González +4 more
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Development of Modal and Amodal Completion in Infants
Perception, 2006Visual completion has been divided into two types: modal and amodal. While psychophysical studies with adults provided several common properties between modal and amodal completion, studies with infants showed differential trends in the development of these perceptual abilities.
Yumiko, Otsuka +2 more
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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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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 used,
BONAIUTO, Paolo +2 more
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