Parkinson Disease 4, Autosomal Dominant, also known as autosomal dominant parkinson disease 4, is related to rem sleep behavior disorder and dementia, lewy body. An important gene associated with Parkinson Disease 4, Autosomal Dominant is SNCA (Synuclein Alpha), and among its related pathways/superpathways are Monoamine transport and Dopaminergic neurogenesis. Affiliated tissues include brain and subthalamic nucleus, and related phenotypes are abnormal autonomic nervous system physiology and hallucinations