I was recently introduced to an organization called Canine Partners for Life. http://www.k94life.org/html/seizure_alert.htm  These seizure alert dogs are able to predict seizure activity anywhere from several minutes to an hour before the seizure occurs.  Through its sense of smell, the dog detects the chemical and electrical changes within a person's body caused by seizure activity. Often, a dog will nudge/bump/paw its partner, or give a small whine. If the person is walking, the dog will interfere with the person's movement, blocking their path and causing them to stop. These dogs are very reliable and consistent in their work. Their alerts are typically the same amount of time prior to each seizure which gives a sense of control and management to the human partner.  http//www.k94life.org/hjtml/seizure_alert.htm Visit me at www.epilepsytalk.com