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Lexical leverage: category knowledge boosts real-time novel word recognition in 2-year-olds.
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In: Developmental science, vol 19, iss 6 (2016)
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Abstract:
Recent research suggests that infants tend to add words to their vocabulary that are semantically related to other known words, though it is not clear why this pattern emerges. In this paper, we explore whether infants leverage their existing vocabulary and semantic knowledge when interpreting novel label-object mappings in real time. We initially identified categorical domains for which individual 24-month-old infants have relatively higher and lower levels of knowledge, irrespective of overall vocabulary size. Next, we taught infants novel words in these higher and lower knowledge domains and then asked if their subsequent real-time recognition of these items varied as a function of their category knowledge. While our participants successfully acquired the novel label-object mappings in our task, there were important differences in the way infants recognized these words in real time. Namely, infants showed more robust recognition of high (vs. low) domain knowledge words. These findings suggest that dense semantic structure facilitates early word learning and real-time novel word recognition.
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Keyword:
Child; Cognitive Sciences; Developmental & Child Psychology; Humans; Knowledge; Language Development; Linguistics; Preschool; Psychology; Recognition (Psychology); Semantics; Speech Perception; Vocabulary
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URL: https://escholarship.org/uc/item/86m7n8q9
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Children and adults integrate talker and verb information in online processing.
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In: Developmental psychology, vol 50, iss 5 (2014)
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Lexical leverage: category knowledge boosts real-time novel word recognition in 2-year-olds.
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Semantic Structure in Vocabulary Knowledge Interacts With Lexical and Sentence Processing in Infancy.
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