Users of brain-computer interface (BCI) systems wear an electroencephalography (EEG) headset that places multiple electrodes in contact with the scalp of the user. The EEG headsets provided herein provide user convenience and EEG accuracy. For example, the positioning of the EEG electrodes is readily adjustable to provide a customizable fit with various head shapes and sizes, and to conveniently provide repeatable electrode-to-scalp contact. Further, EEG accuracy is improved by integrating electromagnetic shielding into the EEG headset to reduce electromagnetic interference.
