Learning While Babbling: Prelinguistic Object‐Directed Vocalizations Indicate a Readiness to Learn

Abstract

Two studies illustrate the functional significance of a new category of prelinguistic vocalizing-object-directed vocalizations (ODVs)-and show that these sounds are connected to learning about words and objects. Experiment 1 tested 12-month-old infants' perceptual learning of objects that elicited ODVs. Fourteen infants' vocalizations were recorded as they explored novel objects. Infants learned visual features of objects that elicited the most ODVs but not of objects that elicited the fewest vocalizations. Experiment 2 assessed the role of ODVs in learning word-object associations. Forty infants aged 11.5 months played with a novel object and received a label either contingently on an ODV or on a look alone. Only infants who received labels in response to an ODV learned the association. Taken together, the findings suggest that infants' ODVs signal a state of attention that facilitates learning.

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