Our finding that infants learned trochaic, but not iambic, high probability object labels is consistent
with Curtin and colleagues’ (2012) demonstration of an iambic bias for action labels. For both actions
and objects, infants learn labels more readily when they follow the typical native language stress pattern
for that word type. Young word learners have already detected which stress patterns are associated
with word types, and they apply this information to constrain how they associate words with
referents.