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. 2025 Aug 12;19:1625279. doi: 10.3389/fninf.2025.1625279

Figure 4.

Diagram of a motor imagery system and module connections. Panel A shows the connection between the Motor Imagery Stimulator and TCP Writer. Panel B displays five piano keys labeled with hand and foot icons. Panels C, D, and E illustrate different stages: data acquisition, single trial, and testing stages, each with a timeline from zero to nine seconds, showing sequences with highlighted red keys.

Screenshots of the application controlled by the built brain-computer interfaces (BCI). (A) connection of the OpenViBE Lua Stimulator box (generator of stimulations) with the OpenViBE TCP Writer box (TCP server). (B) 5 piano keys with the corresponding images of the body movements. (C) course of a single trial in the data acquisition stage. (D) course of a single trial in the user training and testing stages with congruent feedback. (E) course of a single trial in the user training and testing stages with incongruent feedback.