Neurodevelopmental Disorder with Hypotonia, Craniofacial Abnormalities, and Seizures, is also known as psychomotor retardation, epilepsy, and craniofacial dysmorphism. An important gene associated with Neurodevelopmental Disorder with Hypotonia, Craniofacial Abnormalities, and Seizures is SNIP1 (Smad Nuclear Interacting Protein 1). Affiliated tissues include tongue and heart, and related phenotypes are seizure and high palate