Child with Dravet Syndrome (IMAGE) University of Arizona Caption This is a child with Dravet Syndrome -- a severe form of epilepsy that interferes with normal brain development. In two of the children whose DNA was analyzed for this study, the researchers discovered a genetic mutation causing Dravet Syndrome, providing an answer to their "diagnostic odyssey." Credit Courtesy of the Dravet Syndrome Foundation Usage Restrictions This visual may only be used in conjunction with reporting/posting of this news release. Image/video credit must be included exactly as indicated. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.