Landau Kleffner Syndrom, also known as Acquired Epileptic Aphasia, is the abnormal inability to understand and express language. . This disorder affects children between the ages 3 and 7. Symptoms include seizures and auditory-verbal agnosia. Seizures in children that occur while they sleep is usually an indicator of LKS. Patients have signs of rage, aggression, anxiety, and impaired short term memory. Treatment for LKS is performed via medication with anti-convusants and steroids. A controversial treatment involving surgery to the part of the brain that is affected has proven effective in 7 out of 14 patients but most patients remain with a severe language disorder for the remainder of their lives.