Electroencephalography (EEG)
EEG is a method of measuring brain activity. By applying a cap, which incorporates small metal plates (electrodes), on the head the voltage fluctuation on the head's surface can be recorded. The contact between electrodes and scalp is facilitated by a conductive gel. Subsequently various kinds of stimuli can be presented, e.g. acoustic stimuli by means of earphones or visual stimuli on a monitor. In doing so we can measure brain activity in response to the presented stimuli.
