Brainwave activity is measured with an (EEG). The EEG equipment is connected to the individual with sensors that are attached the scalp and ears. The sensors are safe, do not prick the skin and are painless. They do not involve the application of any voltage or current to the brain. It’s entirely safe and non-invasive. Clients are taught to play movies or computerized games using their brainwave activity. Changes in client brainwave activity are fed back to the individual through visual and/or auditory, sensory information by the computer.