“…Restricted repetitive behavior (RRB) is diagnostic for autism spectrum disorder (ASD), common in other neurodevelopmental disorders (e.g., Fragile X, Prader-Willi, non-syndromic intellectual disability), and manifests in a number of neurological conditions (e.g., Tourette syndrome, Parkinson’s disease, fronto-temporal dementia) [1,2,3,4,5]. RRB includes multiple categories of responding including stereotyped movements, self-injury, repetitive object manipulation, repetitive speech, compulsions, rituals, and circumscribed interests and sameness behaviors [1,6].…”