Possibilities of application he brain-сompouter interface based on stable visual evoked potentials with the use of virtual reality headset

Abstract

The work analyzes the possibility of users mastering brain-computer interfaces based on SSVEP. Two variants of development were studied - stationary, where the user interacted with a monitor, on the periphery of which six light-emitting diodes were located, and mobile, where the user put on modified glasses of augmented reality with an integrated photo-stimulation system. Taking into account the high dispersion of data within the groups, using cluster analysis (K-mean), users were identified who demonstrated inability to learn from the first time and without preliminary training of BCI systems, as well as a number of users demonstrating such opportunities. In this case, two subgroups of such subjects were singled out: for some, the absorption of high frequencies of the а-rhythm is characteristic, however, the low frequencies of both а-rhythm and p-rhythm for these subjects did not give the required quality of assimilation of photostimulation, for others on the contrary, а-rhythm and p-rhythm gave the best results. In the case of AR-glasses, the subjects also gave relatively high results in the low-frequency region of the а-rhythm. The obtained results allow to state that for a significant percentage of users the development of AR-points integrated with synchronous brain-computer systems can be relatively successful already at the irst attempt.