Early Onset Nonprogressive Generalized Dystonia Is Caused by Biallelic SHQ1 Variants

Data sharing is not applicable to this article as no new data were created or analyzed in this study. Video S1. (A) Mild dystonia is observed in the distal extremities of both upper extremities. Additionally, cervical and left shoulder dystonia are exacerbated in this position. Dystonic movements of the right foot are occasionally observed. (B) The patient has difficulty with tandem gait. This maneuver exacerbates the dystonia of the right upper extremity. (C) When running, mild dystonia of both feet is observed. (D) The Archimedes spiral drawing can be executed with normal velocity. Myoclonus is not observed during this activity. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.