Amodal completion of natural objects: Effects of material properties
until further notice
SourcePerception, 35, , (2006), pp. 107
Article / Letter to editor
Display more detailsDisplay less details
SW OZ DCC CO
SW OZ NICI CO
SubjectAction, intention, and motor control
To understand how people normally perceive partly occluded objects as wholes, much research has been done with stylistic stimuli. Recent studies found strong preferences for completing the occluded object in accordance with general (global) properties of the stimulus. It was argued that contextual, overall characteristics of the stimulus govern completion. In the case of more veridical stimuli, perceivers' knowledge of material properties could constitute such a contextual factor as well. Therefore, in this study, we measured the perceived form of images of penetrating objects when hardness of their materials might, or might not, conflict. By means of the primed matching paradigm we independently varied the material and shape properties of the two objects (using slices of cucumbers, metal discs, bricks, and butter) to investigate which objects would be completed. Particularly, after 300 ms of prime duration, differential priming effects were measured for different material combinations. Amodal completion strongly depended on material properties; soft materials did not penetrate hard materials, whereas hard materials could very well penetrate soft materials. We demonstrated that, beside mere shape aspects, material properties also play a role in amodal completion--even at relatively early stages of the completion process.
Upload full text
Use your RU credentials (u/z-number and password) to log in with SURFconext to upload a file for processing by the repository team.