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  • Spatially-defined motor deficits in people with unilateral complex regional pain syndrome

    Author(s)
    Reid, Emily J
    Braithwaite, Felicity A
    Wallwork, Sarah B
    Harvie, Daniel
    Chalmers, K Jane
    Spence, Charles
    Gallace, Alberto
    Moseley, G Lorimer
    Griffith University Author(s)
    Harvie, Daniel S.
    Year published
    2018
    Metadata
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    Abstract
    Objective: Spatially-defined disruption of autonomic and sensory function has been identified in Complex Regional Pain Syndrome (CRPS). This study aimed to determine whether motor performance is also disrupted in a spatially-defined manner in people with CRPS. Methods: Thirteen people with CRPS type 1 of the upper limb participated in two motor experiments. In Experiment 1 participants performed a circle drawing task that primarily tested motor accuracy. In Experiment 2 participants performed a button pressing task that tested motor co-ordination. In both experiments the motor tasks were performed with either hand (affected ...
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    Objective: Spatially-defined disruption of autonomic and sensory function has been identified in Complex Regional Pain Syndrome (CRPS). This study aimed to determine whether motor performance is also disrupted in a spatially-defined manner in people with CRPS. Methods: Thirteen people with CRPS type 1 of the upper limb participated in two motor experiments. In Experiment 1 participants performed a circle drawing task that primarily tested motor accuracy. In Experiment 2 participants performed a button pressing task that tested motor co-ordination. In both experiments the motor tasks were performed with either hand (affected or healthy), and on either side of the body midline – that is, on the affected side of space or healthy side of space. Results: There was a main effect of both Limb and Side for the motor tasks. In Experiment 1, motor accuracy for the circle drawing task was poorer when participants used their affected hand than when they used their healthy one (p < .001), and when the task was performed on the affected side of their body midline than when it was performed on the healthy side (p < .001). In Experiment 2, motor co-ordination for the button pressing task was poorer when participants used their affected hand than when they used their healthy one (p < .001), and when the task was performed on the affected side of the midline (p < .001), as compared to the healthy side of the midline. Conclusions: Unilateral CRPS is associated with a spatially-defined disruption of motor performance. Participants perform worse when the task is performed on the affected side of the body midline, regardless of whether they use their affected or healthy hand.
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    Journal Title
    Cortex
    DOI
    https://doi.org/10.1016/j.cortex.2017.06.024
    Note
    This publication has been entered into Griffith Research Online as an Advanced Online Version.
    Subject
    Neurosciences
    Neurosciences not elsewhere classified
    Psychology
    Cognitive and computational psychology
    Publication URI
    http://hdl.handle.net/10072/352721
    Collection
    • Journal articles

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