Occluded information is restored at preview but not during visual search.

ABSTRACT: Objects often appear with some amount of occlusion. We fill in missing information using local shape features even before attending to those objects-a process called amodal completion. Here we explore the possibility that knowledge about common realistic objects can be used to "restore" missing information even in cases where amodal completion is not expected. We systematically varied whether visual search targets were occluded or not, both at preview and in search displays. Button-press responses were longest when the preview was unoccluded and the target was occluded in the search display. This pattern is consistent with a target-verification process that uses the features visible at preview but does not restore missing information in the search display. However, visual search guidance w

SUBMITTER: Alexander RG 

PROVIDER: S-EPMC6181188 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature