global and local completions in visual occlusion
Rob J. van Lier, Peter A. van der
Helm, Emanuel L. J. Leeuwenberg
In visual occlusion, two amodal-completion tendencies occur frequently.
tendency leads toward the simplest completed shape (a global
the other to a shape for which the completion itself is as simple as
(a local completion). Two experimental paradigms were used to test the
of these completion tendencies: a drawing task and a simultaneous
task. The experimental results support the notion that the preference
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.
of Experimental Psychology: Human Perception and
Performance, 21, 571--583