Understanding Performance Variability in Developmental Coordination Disorder: What Does It All Mean?

AbstractPurpose of ReviewPhenotypic variability is a key feature of developmental coordination disorder (DCD). There is not only inter-individual variability but also considerable intra-individual variability, meaning that movement patterns can change remarkably from trial to trial. This review discusses factors contributing to the variability seen in this complex heterogeneous disorder.Recent FindingsEvidence from neurological and genetic studies will be discussed, in particular those utilising advanced imaging and sequencing protocols attempting to unravel the complex aetiology of DCD. Environmental factors such as experience are also discussed, issues also contributing to the variability seen and challenging our understanding of DCD.SummaryThis review demonstrates that DCD is not dissimilar to other disorders, with clinical phenotype likely to reflect variable areas of brain abnormality influenced by a range of genetic and environmental factors. We highlight important issues that continue to complicate our understanding of DCD and address important implications of variability to consider in future research.
Source: Current Developmental Disorders Reports - Category: Child Development Source Type: research