Insights in Developmental Coordination Disorder Marie (E-pub Ahead of Print)
Background. Developmental Coordination Disorder (DCD) is a neurological impairment occurring in nearly 6% of general population, and sometimes mimics other developmental disorders like Attention Deficit Hyperactivity Disorder (ADHD) or, in the most severe cases, intellectual deficiency. Objective. We propose in this review a contribution on this matter in order to provide better insights in DCD including clinical symptoms and pathophysiological explanations that would identify this entity from others. We also cover clinical experiments on several aspects of DCD symptoms and provide an overview of functional studies on the subject.
Results. DCD can be stated as a sum of fine motor, perceptual visual and executive difficulties, emerging during childhood brain development and lasting throughout adulthood. Even if DCD can be isolated from other co-morbidities, it is still difficult to categorize it in delimited subclasses. The findings in functional imaging also diverge in locating the cerebral deficit for a given motor task. Conclusion. Finding a single explanation seems difficult as many cerebral regions are associated with DCD and many clinical aspects are involved, but, further studies could explore genetic (or epigenetic) explanation for the prevalence of DCD in population.
Keywords: DCD, Movement disorder, Brain development, Learning, Motor impairment, Neurological dysfunctions, Dyspraxia, Clumsiness.
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