Overlap has also been noted in genetics, where the Park2 gene, implicated in Parkinson’s disease, has also been found in association with ASD [22]; Park2 copy number variant mutations have been identified in case reports of children with Asperger syndrome [23]; and mutations have been identified in a gene-regulating dopamine metabolism and behavioral responses to dopaminergic drugs, also implicated in Parkinson’s disease [24]. The gene discussed is PRKN; the disease is Parkinson disease.