disability, or sensory deprivation, as well as in typically developing children (“primary”
stereotypies, pCMS). The precise pathophysiological mechanism for motor stereotypies is
unknown, although genetic etiologies have been suggested. In this study, we perform whole-
exome DNA sequencing in 129 parent-child trios with pCMS and 853 control trios (118
cases and 750 controls after quality control). We report an increased rate of de novo …