Variant and invariant characteristics of speech movements

@article{Gracco1986VariantAI,
  title={Variant and invariant characteristics of speech movements},
  author={Vincent L. Gracco and James H. Abbs},
  journal={Experimental Brain Research},
  year={1986},
  volume={65},
  pages={156-166}
}
Upper lip, lower lip, and jaw kinematics during select speech behaviors were studied in an attempt to identify potential invariant characteristics associated with this highly skilled motor behavior. Data indicated that speech motor actions are executed and planned presumably in terms of relatively invariant combined multimovement gestures. In contrast, the individual upper lip, lower lip, and jaw movements and their moment-to-moment coordination were executed in a variable manner, demonstrating… CONTINUE READING
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