What is a seizure?

Seizures are a sudden surge of electrical activity in the brain which can affect how a person appears or acts for a short time. The electrical activity is caused by complex chemical changes that occur in nerve cells. Brain cells either excite or inhibit other brain cells from sending messages. Usually there is a balance of cells that excite and those that can stop these messages. When a seizure occurs, there may be too much or too little activity, causing an imbalance between exciting and stopping activity. The chemical changes can lead to surges of electrical activity that cause seizures. Seizures are not a disease in themselves. Instead they are a symptom of many different disorders that can affect the brain. Some seizures can hardly be noticed, while others are totally disabling.

seizureneuron

Seizures and neurofeedback

There have been over 50 controlled studies that a special form of brain wave biofeedback, now called neurofeedback, safely and effectively trains and stabilizes your brain waves. Neurofeedback is effective with treating all types of seizures. In a typical training session computerized biofeedback instrumentation detects and displays the brain waves on the computer screen. The program inhibits the slow waves while reinforcing mid-range frequencies associated with preventing seizures. Neurofeedback uses sound feedback in order to reinforce brain waves. The sound feedback is essential to neurons, which through operant conditioning creates a more stable brain wave pattern.

Samples of EEG activity

Normal awake EEG

Normal awake EEG


Spike-and-slow-wave

Spike-and-slow-wave


3-second spike-and-wave (Absence or Petit Mal)

3-second spike-and-wave (Absence or Petit Mal)


During tonic-clonic seizure (Grand Mal)

During tonic-clonic seizure (Grand Mal)

Resources & Research Articles