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Cognitive and neuroimaging findings in developmental coordination disorder: new insights from a systematic review of recent research
Author(s) -
Wilson Peter H,
SmitsEngelsman Bouwien,
Caeyenberghs Karen,
Steenbergen Bert,
Sugden David,
Clark Jane,
Mumford Nick,
Blank Rainer
Publication year - 2017
Publication title -
developmental medicine and child neurology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.658
H-Index - 143
eISSN - 1469-8749
pISSN - 0012-1622
DOI - 10.1111/dmcn.13530
Subject(s) - psychology , neuroimaging , cognition , functional magnetic resonance imaging , cognitive psychology , neuroscience , prefrontal cortex , orbitofrontal cortex , brain structure and function , population , developmental psychology , medicine , environmental health
Aim To better understand the neural and performance factors that may underlie developmental coordination disorder ( DCD ), and implications for a multi‐component account. Method A systematic review of the experimental literature published between June 2011 and September 2016 was conducted using a modified PICOS (population, intervention, comparison, outcomes, and study type) framework. A total of 106 studies were included. Results Behavioural data from 91 studies showed a broad cluster of deficits in the anticipatory control of movement, basic processes of motor learning, and cognitive control. Importantly, however, performance issues in DCD were often shown to be moderated by task type and difficulty. As well, we saw new evidence of compensatory processes and strategies in several studies. Neuroimaging data (15 studies, including electroencephalography) showed reduced cortical thickness in the right medial orbitofrontal cortex and altered brain activation patterns across functional networks involving prefrontal, parietal, and cerebellar regions in children with DCD than those in comparison groups. Data from diffusion‐weighted magnetic resonance imaging suggested reduced white matter organization involving sensorimotor structures and altered structural connectivity across the whole brain network. Interpretation Taken together, results support the hypothesis that children with DCD show differences in brain structure and function compared with typically developing children. Behaviourally, these differences may affect anticipatory planning and reduce automatization of movement skill, prompting greater reliance on slower feedback‐based control and compensatory strategies. Implications for future research, theory development, and clinical practice are discussed.