Infants' developing appreciation of similarities between model objects and their real-world referents |
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| Authors: | Younger Barbara A Johnson Kathy E |
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| Institution: | Purdue University, Department of Psychological Sciences, 703 Third Street, West Lafayette, IN 47907-2081, USA. youngerr@purdue.edu |
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| Abstract: | Previous research suggests that model competence does not emerge until relatively late in infancy (20-26 months). Development was systematically analyzed within 3 key areas--count noun learning, dual representation, and categorization-hypothesized to support the emergence of model competence in the second year. In an object-handling preferential looking task, 21- to 26-month-olds matched model objects to referents only when count noun knowledge was high. When dual representation demands were reduced through the use of pictures in place of model objects, 20-month-olds with low count noun vocabularies succeeded in relating symbols to referents. Finally, change in infants' construal of a model object as a member of a category was documented between 14 and 20 months of age. |
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