Clinical neurophysiology in movement disorders

摘要: Abstract Neurophysiological tools are very helpful in characterizing various movement disorders, consequently guiding etiological research and therapy. Movement disorders recordings currently underutilized neurological practice adults could also be extended to the pediatric population. Surface polymyography (EMG) combined with accelerometry is commonly used for analysis of many types hyperkinetic mainly myoclonus, tremor, dystonia, sometimes tics chorea. To study techniques exploring cortical excitability, namely conventional EEG, EEG-jerk-locked-back-averaging (JLBA), somatosensory evoked potentials (SEP) C-reflex studies, should necessarily complete EMG analysis. Premovement potential recording measures stimulus induced jerks latencies may help differentiate psychogenic from myoclonus. The field clinical usefulness large. Main issues are: (1) tremor (2) demonstrate locate dystonic features, either isolated or associated (3) define nature a (4) assess jerks, (5) neurophysiological generator myoclonus central nervous system. data allow us clearly classify as cortical, cortico-thalamic, subcortical − resulting lesions dysfunctions basal ganglia/reticular system − or spinal.