Competing global and local completions in visual occlusion.
In visual occlusion 2 amodal-completion tendencies occur frequently. One tendency leads toward the simplest completed shape (a global completion) and the other to a shape for which the completion itself is as simple as possible (a local completion). Two experimental paradigms were used to test the strengths of these completion tendencies: a drawing task and a simultaneous matching task. The experimental results support the notion that the preference for either a global or a local completion is the consequence of a competition between interpretations. Finally, the authors discuss how the preference for a completion can be predicted by a model that is based on a quantification of both global and local aspects.
van Lier
R J
RJ
Nijmegen Institute for Cognition and Information, University of Nijmegen, The Netherlands.
van der Helm
P A
PA
Leeuwenberg
E L
EL
D000328:Adult; D001288:Attention; D004193:Discrimination Learning; D005260:Female; D006801:Humans; D008297:Male; D009949:Orientation; D010364:Pattern Recognition, Visual; D010466:Perceptual Closure; D010470:Perceptual Masking; D011597:Psychomotor Performance; D011601:Psychophysics; D012858:Size Perception