Examples of stimulus presentation in Experiment 2 and 3.

<p>During the habituation phase, the toddlers were shown two movies in semi-random order, with the same movie not occurring on more than 3 consecutive trials. After their looking time reached the habituation criterion, the test phase began, in which the toddlers were shown 4 movies. The 2 presentation patterns in the test phase differed depending on the baseline condition.