This is the fifth in our series on EEG in pediatric epilepsy. This is an introduction to the epileptic encephalopathies and their EEG findings. Topics include Lennox Gastaut Syndrome, Infantile spasms, Doose Syndrome, Dravet Syndrome, and the early infantile epileptic encephalopathies. Presented by Dr. S. Parrish Winesett from the Department of Pediatrics at the University of Florida.