Figure 1.
Mean looking time differences to familiar versus unfamiliar test word forms in Experiments 1 through 4. Six-month-olds successfully recognized familiarized word forms in Experiments 1, 2, and 4 (displaying a novelty effect in Experiments 1 and 2, and a familiarity effect in Experiment 4), but failed to show any recognition for the rhyme of the familiarized word forms in Experiment 3.
Figure 2.
Frequency of word occurrence per million broken down by utterance position and speech register.
Table 1.
Frequency per million of words occurring in isolation, at the edge (beginning or end), or in the middle of an utterance, split by grammatical category for infant- (IDS), child- (CDS), and adult-directed speech (ADS).
Table 2.
Frequency per million of nouns occurring in isolation, at the edge (beginning or end), or in the middle of an utterance, for infant- (IDS), child- (CDS), and adult-directed speech (ADS), split by the top 50 nouns in the child’s input versus the remainder of the nouns.