{"pk":28918,"title":"Word-Learning Biases Contribute Differently to Late-Talker and Typically\nDeveloping Vocabulary Trajectories","subtitle":null,"abstract":"This study explores how the vocabulary growth trajectories of\ntypically developing and late-talker children change in relation\nto their word learning biases. Forty late talkers and 44 typically\ndeveloping toddlers visited the lab once a month for one year\nstarting at about 18 months of age. Word-learning trajectories\nwere tracked using a parent-reported vocabulary measure, and\nshape and material bias measures were collected using the\nnovel noun generalization task each month. A two-level\nhierarchical linear model was utilized for the longitudinal\nanalyses. Results indicate that, at the first visit, a stronger shape\nbias was significantly associated with a larger vocabulary in\ntypically developing talkers. In late talkers, however, a stronger\ninitial shape bias was associated with a smaller vocabulary.\nOver the course of the study, for every additional visit, stronger\nshape biases were associated with larger vocabularies in late\ntalkers, but not in typically developing toddlers. Results for the\nmaterial bias mirrored the shape bias results. These findings\nsuggest different possible underlying mechanisms for the two\ngroups of children, as well as avenues for the design of\nlanguage interventions that might support young late talkers.","language":"eng","license":{"name":"","short_name":"","text":null,"url":""},"keywords":[{"word":"vocabulary acquisition; word-learning bias; late\ntalker; word learning"}],"section":"Papers with Poster Presentations","is_remote":true,"remote_url":"https://escholarship.org/uc/item/0cc2f37z","frozenauthors":[{"first_name":"Jennifer","middle_name":"M.","last_name":"Weber","name_suffix":"","institution":"University of Colorado Boulder","department":""},{"first_name":"Eliana","middle_name":"","last_name":"Colunga","name_suffix":"","institution":"University of Colorado Boulder","department":""}],"date_submitted":null,"date_accepted":null,"date_published":"2019-01-01T18:00:00Z","render_galley":null,"galleys":[{"label":"PDF","type":"pdf","path":"https://journalpub.escholarship.org/cognitivesciencesociety/article/28918/galley/18789/download/"}]}