Gamma waves can be detected by electroencephalography or magnetoencephalography. Polysomnography often includes electroencephalography, electromyography, electrocardiography, muscle activity and respiratory function. The device measures brain activity via 4 electroencephalography (EEG) sensors. Computational processing of the EEG is often named quantitative electroencephalography (qEEG). ERPs are measured by means of electroencephalography (EEG). Evaluation with video electroencephalography (EEG) is useful. Delta waves, like all brain waves, can be detected by electroencephalography (EEG). The use of electroencephalography (EEG) often plays a role in the diagnosis of brain tumors. Some patterns on electroencephalography (EEG) are also associated with a poorer outcome. The diagnosis can be confirmed when the characteristic centrotemporal spikes are seen on electroencephalography (EEG). Delta waves can be quantified using quantitative electroencephalography. His major interests involved research of electroencephalography and brain functionality in epilepsy. Infrasonic frequency response measurements include earthquakes and electroencephalography (brain waves). Continuous electroencephalography monitoring is recommended in symptomatic patients. During electroencephalography, hyperventilation can be used to provoke these seizures.