Amodal Completion of a Target Template Enhances Attentional Guidance in Visual Search

Chen, Siyi ; Schnabl, Lucas; Müller, Hermann J. und Conci, Markus (2018): Amodal Completion of a Target Template Enhances Attentional Guidance in Visual Search. In: I-Perception, Bd. 9, Nr. 4, 2041669518796240

Abstract

When searching for a target object in cluttered environments, our visual system appears to complete missing parts of occluded objectsa mechanism known as amodal completion. This study investigated how different variants of completion influence visual search for an occluded target object. In two experiments, participants searched for a target among distractors in displays that either presented composite objects (notched shapes abutting an occluding square) or corresponding simple objects. The results showed enhanced search performance when composite objects were interpreted in terms of a globally completed whole. This search benefit for global completions was found to be dependent on the availability of a coherent, informative simple-object context. Overall, these findings suggest that attentional guidance in visual search may be based on a target template that represents a globally completed image of the occluded (target) object in accordance with prior experience.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Psychologie und Pädagogik > Department Psychologie
• Themengebiete: 100 Philosophie und Psychologie > 150 Psychologie
• ISSN: 2041-6695
• Sprache: Englisch