User:Dr sundram

Electroencephalogram The electrical activity of brain and cerebral cortex can be recorded through instruments like electroencephalograph or cathode ray oscilloscope.The recording of spontaneous electrical activity of the brain is electroencephalogram.electrical tracing of the cerebral cortex is called EEG.Hans berger,the German neuroscients in 1929 was first to record EEG .Electroencephalic record in normal human subjects consists of four different types of rhythmic waves namely