title: Kinematic characteristics of postvocalic labial stop consonants produced by children and adults.
abstract: It has been commonly observed in the speech of English-speaking adults and children that vowels are longer when they precede voiced versus voiceless final obstruents. However, less is known about articulatory characteristics of such productions, particularly in the case of children. The present study investigated kinematic properties of children's and adults' productions of labial stop consonants in postvocalic position. Acoustic measures of the same segments were also obtained. It was observed that for all three groups of children and the adults, closing gestures into [p] occurred more rapidly than did closing gestures into [b]; however, there was a tendency for the difference between [p] and [b] closing velocities to increase with age. Possible relationships between acoustic and kinematic factors were also explored.
mesh_terms: D000328:Adult; D001696:Biomechanical Phenomena; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007568:Jaw / Q000502:physiology*; D008046:Lip / Q000502:physiology*; D009068:Movement; D010700:Phonetics; D013060:Speech / Q000502:physiology*; D013061:Speech Acoustics