Journal article
Corticomotor organisation and motor function in multiple sclerosis
Journal of Neurology, Vol.252(7), pp.765-771
2005
Abstract
Our objective was to determine whether there are changes in the corticomotor map for the hand in multiple sclerosis, and whether these changes correlate with indices of motor function and measures of corticomotor conduction or excitability. Transcranial magnetic stimulation (TMS) maps, motor evoked potential (MEP) latency and amplitude, motor threshold and EDSS and Purduepegboard measurements were made in 26 subjects with relapsingremitting multiple sclerosis. Correlations were sought between these measurements using the Pearson product–moment correlation with a level of significance of p = 0.05 (two–tailed). Map displacement was positively correlated with MEP latency (p = 3×10–4) and EDSS (p = 0.007), and negatively correlated with Purdue score (p = 4×10–4). Purdue scores correlated with all MEP parameters (latency, p = 4×10–10; threshold, p = 4×10–6; amplitude, p = 0.003). We conclude that motor reorganisation is associated with impaired corticomotor conduction and may reflect a process of neural plasticity associated with axonal demyelination in MS. An understanding of motor function in MS should incorporate models of both axonal demyelination and conduction deficits as well as neural plasticity.
Details
- Title
- Corticomotor organisation and motor function in multiple sclerosis
- Authors/Creators
- G.W. Thickbroom (Author/Creator) - Queen Elizabeth II Medical CentreM.L. Byrnes (Author/Creator) - Queen Elizabeth II Medical CentreS.A. Archer (Author/Creator) - Queen Elizabeth II Medical CentreA.G. Kermode (Author/Creator) - Queen Elizabeth II Medical CentreF.L. Mastaglia (Author/Creator) - Queen Elizabeth II Medical Centre
- Publication Details
- Journal of Neurology, Vol.252(7), pp.765-771
- Publisher
- Steinkopff Verlag
- Identifiers
- 991005544482207891
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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Source: InCites
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- Collaboration types
- Domestic collaboration
- Citation topics
- 1 Clinical & Life Sciences
- 1.203 Neuromuscular Disorders
- 1.203.147 Multiple Sclerosis
- Web Of Science research areas
- Clinical Neurology
- ESI research areas
- Neuroscience & Behavior