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Rapid on-line control to reaching is preserved in children with congenital spastic hemiplegia: evidence from double-step reaching performance
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posted on 2015-01-01, 00:00 authored by Christian HydeChristian Hyde, Ian FuelscherIan Fuelscher, Peter EnticottPeter Enticott, S M Reid, J WilliamsThis study aimed to investigate the integrity of on-line control of reaching in congenital spastic hemiplegia in light of disparate evidence. Twelve children with and without spastic hemiplegia (11-17 years old) completed a double-step reaching task requiring them to reach and touch a target that remained stationary for most trials (viz nonjump trial) but unexpectedly displaced laterally at movement onset for a minority of trials (20%: known as jump trials). Although children with spastic hemiplegia were generally slower than age-matched controls, they could account for target perturbation at age-appropriate levels shown by a lack of interaction effect on movement time and nonsignificant group difference for time to reach trajectory correction on jump trials. Our data suggest that at a group level, on-line control of reaching may be age-appropriate in spastic hemiplegia. However, our data also highlight the need to experimentally acknowledge the considerable heterogeneity of the spastic hemiplegia population when investigating motor cognition.
History
Journal
Journal of child neurologyVolume
30Issue
9Pagination
1186 - 1191Publisher
Sage PublicationsLocation
Thousand Oaks, Calif.Publisher DOI
ISSN
0883-0738eISSN
1708-8283Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalUsage metrics
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