Stability and composition of functional synergies for speech movements in children and adults

Terband, Hayo and Van Brenk, Frits and van Lieshout, Pascal and Nijland, Lian and Maassen, Ben (2009) Stability and composition of functional synergies for speech movements in children and adults. In: Interspeech 2009, 2009-09-06 - 2009-09-10.

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Abstract

The consistency and composition of functional synergies for speech movements were investigated in 7 year-old children and adults in a reiterated speech task using electromagnetic articulography (EMA). Results showed higher variability in children for tongue tip and jaw, but not for lower lip movement trajectories. Furthermore, the relative contribution to the oral closure of lower lip was smaller in children compared to adults, whereas in this respect no difference was found for tongue tip. These results support and extend findings of non-linearity in speech motor development and illustrate the importance of a multi-measures approach in studying speech motor development.

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