Examples of visual displays used in Experiments 1 and 2.

a) The object (e.g., a toy fire truck) in the box for Experiment 1 was revealed (or not) by up-down animation of an occluder (e.g., a blue polka-dotted box). b) In Experiment 2, one of three unique objects (e.g., a baby bottle) popped up from behind one of three highly distinctive boxes. Also see Videos S1 and S2 for examples of animated displays used in these studies.