An electronic chip implanted in the brain could help to prevent epileptic fits, a study suggests. The device, so far tested only in mice, can detect the'electric storm' that occurs in the brain when a seizure starts and release a natural chemical to stop it. The chip, made from plastic and twice as thick as a human hair, could be scaled up and trialled in people within two years. The device, made from plastic and twice as thick as a human hair, detects the'electric storm' occurring in the brain when seizure starts and releases a natural chemical to stop it. Around 600,000 people in Britain have epilepsy and three in ten are unable to control their seizures as anti-epileptic drugs do not work for them.