Five-to-six-year-olds' abilities to detect and solve ambiguities in spoken language have been found to be a predictor of their later reading abilities in first-to-third grade. However, the origins of this relationship remain unclear. Success in ambiguity detection may be reflective of overall language attainment, which varies with socioeconomic…

When young children learn to use language, they start to use their hands in co-verbal gesturing. There are, however, considerable differences between children, and it is not completely understood what these individual differences are due to. We studied how children at 4 years of age employ speech and iconic gestures to convey meaning in different…

In sentences such as "Some dogs are mammals," the literal semantic meaning ("Some 'and possibly all' dogs are mammals") conflicts with the pragmatic meaning ("'Not all' dogs are mammals," known as a "scalar implicature"). Prior work has shown that adults vary widely in the extent to which they adopt the…