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Lexical Leveraging in Novel Word Learning: Different Semantic Properties Support Learners at Different Stages of
Amanda Rose Yuile1, Justin B Kueser2, Claney Outzen1
1Purdue University, West Lafayette, Indiana, USA.
Developmental Science
|November 5, 2025
Summary
Toddlers learn new words better when they understand the category. Perceptual features help toddlers with smaller vocabularies, but structured knowledge is key for word learning at 24 months.
Area of Science:
- Developmental Psychology
- Cognitive Science
- Linguistics
Background:
- Toddlers' word learning is influenced by both taxonomic knowledge and perceptual features of concepts.
- Previous research examined these factors independently, leaving their joint contribution unclear.
Purpose of the Study:
- To investigate how semantic category knowledge and perceptual information jointly impact novel word learning in 24-month-old toddlers.
- To determine the relative importance of taxonomic structure versus perceptual cues in early word acquisition.
Main Methods:
- An ostensive word learning task was employed with 24-month-old toddlers.
- Semantic category knowledge and perceptual information availability were controlled and analyzed.
Main Results:
- Semantic category knowledge significantly facilitated novel word learning.
- Perceptual features provided additional support for word learning in toddlers with smaller expressive vocabularies.
- Structured taxonomic knowledge was a stronger predictor of word learning than perceptual features at 24 months.
Conclusions:
- Structured taxonomic knowledge is a primary driver of word learning in toddlers.
- Perceptual cues play a supplementary role, particularly for children at the early stages of vocabulary development.
Keywords:
perceptual informationsemantic featurestaxonomic structurevocabulary developmentword learningMore Related Videos
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