SP 2. Pallidal low frequency activity correlates with dystonic symptoms in patients with cervical dystonia

Low frequency (4–12Hz) oscillations in the internal pallidum (GPi) have been shown to be correlated and coherent with dystonic EMG activity and have therefore been proposed as a pathophysiological signature in patients with dystonia. The aim of this study was to investigate the potential association between pallidal 4–12Hz activity and symptom severity as quantified by the Toronto Western Spasmodic Torticollis Rating Scale (TWSTRS) in patients with cervical dystonia.

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