Amodal completion and the perception of depth without binocular correspondence. 2002

Benoit A Bacon, and Pascal Mamassian
Department of Psychology, University of Glasgow, Scotland, UK.

Half-occlusions and illusory contours have recently been used to show that depth can be perceived in the absence of binocular correspondence and that there is more to stereopsis than solving the correspondence problem. In the present study we show a new way for depth to be assigned in the absence of binocular correspondence, namely amodal completion. Although an occluder removed all possibility of direct binocular matching, subjects consistently assigned the correct depth (convexity or concavity) to partially occluded 'folded cards' stimuli. Our results highlight the importance of more global, surface-based processes in stereopsis.

UI MeSH Term Description Entries
D008297 Male Males
D010466 Perceptual Closure The tendency to perceive an incomplete pattern or object as complete or whole. This includes the Gestalt Law of Closure. Gestalt Law of Closure,Perceptual Completion Phenomena,Closure, Perceptual,Closures, Perceptual,Completion Phenomena, Perceptual,Perceptual Closures,Phenomena, Perceptual Completion
D011601 Psychophysics The science dealing with the correlation of the physical characteristics of a stimulus, e.g., frequency or intensity, with the response to the stimulus, in order to assess the psychologic factors involved in the relationship. Psychophysic
D003867 Depth Perception Perception of three-dimensionality. Stereopsis,Stereoscopic Vision,Depth Perceptions,Perception, Depth,Perceptions, Depth,Stereopses,Stereoscopic Visions,Vision, Stereoscopic,Visions, Stereoscopic
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D015349 Vision, Monocular Images seen by one eye. Monocular Vision,Monovision

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