Steady-State Visual Evoked Potentials SSVEP in Brain-Computer Interfaces

The subject of the article concerns the interdisciplinary area of research related to the measurement and processing of electrophysiological signals for the needs of the brain-computer interface (BCI). The electrophysiological tests are based on the non-invasive measurement of electrical potentials from the skull surface using the appropriate electrodes. The article presents the issues related to the measurement of these signals, with the particular emphasis on electrophysiological signals from the organ of vision. The signals of the steady-state evoked visual potentials (SSVEP) are shown. The operation of the systems based on brain-computer interfaces was discussed and the methods of extracting from the measured signals of the parameters used in BCI interfaces were described.