Since its creation in 1929, the EEG has proved an invaluable tool in understanding sleep disorders, in diagnosing patients for epilepsy and brain tumors, and in a whole host of other medical areas.

• 因此自1929年问世以来，在理解睡眠混乱方面，在诊断病人的癫痫症及脑瘤方面，在大量其它内科疾病领域方面，EEG已被证明是价之宝。