The significance of event information for 6- to 16-month-old infants' perception of containment.

Four experiments familiarized 6-, 9-, 12-, and 16-month-old infants to a solid block that was repeatedly lowered into a semitransparent container. In test trials the end state, containment, was either compatible or incompatible with the objects' size and position. In Experiment 1, infants saw the block and box successively before they observed the end state.

Occluding the trajectory of an object: effects on predicting containment with 9-, 12- and 16-month-olds.

Infants of 9-16-month-old repeatedly saw a block that was lowered into the opening of a container. It was found that the more time infants have to see the block relative to the container the easier they detect that the object relation specifies containment.