Neurodevelopmental Disorder with or Without Variable Movement or Behavioral Abnormalities, also known as nedmab, is related to dystonia 34, myoclonic and aceruloplasminemia. An important gene associated with Neurodevelopmental Disorder with or Without Variable Movement or Behavioral Abnormalities is KCNN2 (Potassium Calcium-Activated Channel Subfamily N Member 2). Related phenotypes are intellectual disability and global developmental delay