Utterance Duration as It Relates to Communicative Variables in Infant Vocal Development

Conclusion Despite variation in duration of infant utterances, developmental patterns were observed. For these infants, utterance durations appear to become more consolidated later in development, after the 1st year of life. Indeed, 12 months is often noted as the typical age of onset for 1st words and might possibly be a point in time when utterance durations begin to show patterns across communicative variables.
Source: Journal of Speech, Language, and Hearing Research - Category: Speech-Language Pathology Source Type: research