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Updated: Nov 3, 2025

Experience is Instrumental in Tuning a Link Between Language and Cognition: Evidence from 6- to 7- Month-Old Infants' Object Categorization
Published on: April 19, 2017
Infants' vocalizations at 6 months predict their productive vocabulary at one year
Annika Werwach1, Dirk Mürbe2, Gesa Schaadt3
1Clinic for Cognitive Neurology, Medical Faculty, University Leipzig, Liebigstr. 16, 04103, Leipzig, Germany.
Abstract:
Long before their first words, children communicate by using speech-like vocalizations. These protophones might be indicative of infants' later language development. We here examined infants' (n = 56) early vocalizations at 6 months (vocal reactivity scale of the IBQ-R) as a predictor of their expressive and receptive language at 12 months (German version of the CDI). Regression analyses revealed vocalizations to significantly predict expressive, but not receptive language. Our findings in German-learning 6-month-olds extend previous predictive evidence of early vocalizations reported for older infants. Together these findings are informative in light of early assessments monitoring typical and atypical language development.
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