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. 2020 Nov 27;14:589659. doi: 10.3389/fnins.2020.589659

Figure 4.

Figure 4

Processing stages of the BMI. Once acquired the EEG signals, they go through the pre-processing, feature extraction, and classification stages. Based on the results of the classifier, the interface controller synchronizes the visual stimuli and sends control commands via WiFi to the orthosis. If the BMI detects a target option, the GUI provides visual feedback to the user, and the orthosis provides tactile feedback.