Labels and object categorization in six- and nine-month-olds: tracking labels across varying carrier phrases |
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| Institution: | 1. Language, Cognition, and Development Laboratory, Scuola Internazionale di Studi Avanzati, Trieste, Italy;2. Division of Human Communication, Development and Hearing, University of Manchester, Manchester, UK;3. Laboratoire Ethologie Cognition, Développement (LECD), Université Paris Nanterre, France;1. Division of Developmental Neuroscience, United Graduate School of Child Development, Osaka University, Osaka, Japan;2. Department of Medical Innovation, Osaka University Hospital, Osaka, Japan;3. Department of Medical Physics and Engineering, Osaka University Graduate School of Medicine, Osaka, Japan;4. Department of Children and Women’s Health, Osaka University Graduate School of Medicine, Osaka, Japan;1. School of Psychology, The University of Auckland, New Zealand;2. Auckland Bioengineering Institute, The University of Auckland, New Zealand;1. Department of Primary Education, University of Potsdam, Germany;2. Department of Linguistics, University of Potsdam, Germany;3. Department of Inclusive Education, University of Potsdam, Germany;4. Department of Education and Psychology, Free University of Berlin, Germany;1. Crane Center for Early Childhood Research and Policy, The Ohio State University, United States;2. College of Nursing, University of Cincinnati, United States;3. College of Public Health, The Ohio State University, United States |
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| Abstract: | Language shapes object categorization in infants. This starts as a general enhanced attentional effect of language, which narrows to a specific link between labels and categories by twelve months. The current experiments examined this narrowing effect by investigating when infants track a consistent label across varied input. Six-month-old infants (N = 48) were familiarized to category exemplars, each presented with the exact same labeling phrase or the same label in different phrases. Evidence of object categorization at test was only found with the same phrase, suggesting that infants were not tracking the label’s consistency, but rather that of the entire input. Nine-month-olds (N = 24) did show evidence of categorization across the varied phrases, suggesting that they were tracking the consistent label across the varied input. |
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| Keywords: | language acquisition cognitive development language development object categorization |
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