AN ULTRASOUND PILOT STUDY OF NORTH AMERICAN ENGLISH /r/ PRODUCTION IN ONE TYPICALLY DEVELOPING ENGLISH-SPEAKING MONOLINGUAL CHILD

摘要

This paper presents an articulatory study of North American English /r/ productions of one typically developing child. North American English /r/ is of interest because it exhibits acoustic stability despite considerable articulatory variability. It is also often one of the last sounds to be acquired by children. While there is a growing body of research on articulatory variability in adult production of /r/ (e.g. Campbell et al., 2010: Mielke et al., 2010), there remains virtually no articulatory data on children's /r/ production during acquisition.