Validation Methodology of Wireless Brain-Computer Interface for Event-Related Potential Application

Salamon, Ádám and Takács, Gábor and Bognár, György (2025) Validation Methodology of Wireless Brain-Computer Interface for Event-Related Potential Application. INFOCOMMUNICATIONS JOURNAL, 17 (2). pp. 2-10. ISSN 2061-2079

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Abstract

Electroencephalography (EEG) is a technique used to observe brain activity by measuring the dynamic changes of the electric field induced by neurons' activity. Brain-computer interface (BCI) systems are used in cognitive psychology examinations measuring the changes of brain activities. This paper presents a validation methodology to characterize BCI systems with wireless communication interface and the applicability on a preselected BCI system. This way, the delay, the functionality, and the frequency selectivity can be determined of the overall BCI system, taking into account the effect of the hardware, the software, and the electrodes, avoiding noise artifacts. The presented and validated BCI system proved to be successfully applied in ERP EEG measurements such as steady-state visually evoked potential, pattern-reversal visually evoked potential, and P300 event-related potential.

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