Bonomo, R;
Latorre, A;
Balint, B;
Smilowska, K;
Rocchi, L;
Rothwell, JC;
Zappia, M;
(2020)
Voluntary Inhibitory Control of Chorea: A Case Series.
Movement Disorders Clinical Practice
10.1002/mdc3.12907.
(In press).
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Text (Article)
Rothwell_Motor_cortical_excitability_during_voluntary_tic_inhibitionMDJREVISIONcg.pdf - Accepted Version Access restricted to UCL open access staff Download (850kB) |
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Text (Supplementary Table 1)
Rothwell_Supplementary_Tablerevised.pdf - Accepted Version Access restricted to UCL open access staff Download (504kB) |
Abstract
Background: Volitional control of involuntary movements has so far been considered a hallmark of tic disorders. However, modulation of involuntary movements can also be observed in other hyperkinesias. / Cases: Here, we present 6 patients with chorea able to suppress their involuntary movements, on demand. In 3 of them, surface electromyography was used to quantify degree of suppression and confirmed a reduction of muscle activity up to 68%, during volitional control. / Conclusion: This observation represents a first step toward a description of a new clinical feature in choreic syndromes and an opportunity to redefine the role of volitional inhibition in hyperkinetic movement disorders.
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