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  • Title: Speech and oro-motor function in children with developmental coordination disorder: a pilot study.
    Author: Ho AK, Wilmut K.
    Journal: Hum Mov Sci; 2010 Aug; 29(4):605-14. PubMed ID: 20554070.
    Abstract:
    The protracted maturation and development of speech articulation underlies the complexity of the skill, and suggests it may be an area susceptible to a general deficit in motor control. Recent research suggests a high co-occurrence between Developmental Coordination Disorder (DCD) and disordered speech production. Despite this there has been no systematic investigation of speech motor control in children with DCD. We conducted a pilot study which looked at speech motor control in a group of children with DCD (N=5) and a group typically developing (TD) children (N=5). Movements of the upper and lower lip were recorded during non-verbal movements, single words, syllable sequences, and sentence repetition. In the baseline conditions (normal talking speed or an isolated utterance) children with DCD demonstrated a typical pattern of movement, albeit a slower and shorter movement. In contrast, when task complexity was increased the children with DCD showed an atypical pattern of movement. It was concluded that children with DCD demonstrate inferior motor control for complex speech gestures, suggesting that the motor deficit in DCD may indeed be a more generalized phenomenon affecting the speech motor system.
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