Neurodevelopmental Disorder with Cerebellar Atrophy and with or Without Seizures, is also known as nedcas. An important gene associated with Neurodevelopmental Disorder with Cerebellar Atrophy and with or Without Seizures is BRAT1 (BRCA1 Associated ATM Activator 1). Affiliated tissues include cerebellum and eye, and related phenotypes are hyperreflexia and global developmental delay