Figure 1.

Schematic display sequences presented in the two experimental conditions defined by comprising different object-related regularities. In both conditions, regularly presented standard displays and irregularly presented deviant displays differed only with respect to the relation between the discs and the ellipses (the objects), i.e., discs could either belong to the same ellipse or to different ellipses. Participants had to evaluate whether the two discs (the targets) were of the same or of different luminance whereas the target-to-object relation was task-irrelevant. Dashed boxes indicate, that we compared the processing of physically identically displays, i.e., we compared deviants from the “different-object-standard-condition” with standards from the “same-object-standard-condition” (right box) and deviants from the “same-object-standard-condition” with standards from the “different-object-standard-condition” (left box).