group of four waves a, ß, d,T, components of the electrical activity of the brain, each with a characteristic frequency and amplitude and recurring in a characteristic rhythm, associated with certain normal or pathological states of the brain Found on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=891-04-26
group of four waves a, ß, d,T, components of the electrical activity of the brain, each with a characteristic frequency and amplitude and recurring in a characteristic rhythm, associated with certain normal or pathological states of the brain