A Fuzzy Shell for Developing an Interpretable BCI Based on the Spatiotemporal Dynamics of the Evoked Oscillations


Researchers in neuroscience computing experience difficulties when they try to carry out neuro analysis in practice or when they need to design an explainable brain-computer interface (BCI) with a quick setup and minimal training phase. There is a need for interpretable computational intelligence techniques and new brain states decoding for a more understandable interpretation of the sensory, cognitive, and motor brain processing. We propose a general-purpose fuzzy software system shell for developing a custom EEG BCI system. It relies on the bursts of the ongoing EEG frequency power synchronization/desynchronization at scalp level and supports quick BCI setup by linguistic features, ad hoc fuzzy membership construction, explainable IF-THEN rules, and the concept of the Internet of Things (IoT), which makes the BCI system device and service independent. It has a potential for designing both passive and event-related BCIs with options for visual representation at a scalp-source level in response to time. The feasibility of the proposed system has been proven by real experiments and bursts for and frequency power have been detected in real-time in response to evoked visuospatial selective attention. The presence of the proposed new brain state decoding can be used as a feasible metric for the interpretation of the spatiotemporal dynamics of the passive or evoked neural oscillations.

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