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Rapid on-line control to reaching is preserved in children with congenital spastic hemiplegia: evidence from double-step reaching performance

journal contribution
posted on 01.01.2015, 00:00 authored by Christian HydeChristian Hyde, Ian FuelscherIan Fuelscher, Peter EnticottPeter Enticott, S M Reid, J Williams
This 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 neurology

Volume

30

Issue

9

Pagination

1186 - 1191

Publisher

Sage Publications

Location

Thousand Oaks, Calif.

ISSN

0883-0738

eISSN

1708-8283

Language

eng

Publication classification

C Journal article; C1 Refereed article in a scholarly journal