Analyzing electrode configurations to detect intention of pedaling initiation through EEG signals

Restoring the gait cycle is vital in motor-impaired people. To accomplish this, it is necessary to study the brain signals in different areas. This work analyzes EEG data offline and pseudo-online for different electrode configurations and different processing-time windows to detect the pedaling start initiation. Premotor cortex is the area related to movement intention. Therefore, in this study, the FZ electrode, which is located in this area, was included in the analysis of the electrode configurations, testing whether it plays an important role in the detection of pedaling start intention. Results show that using time before and after the movement onset for processing is preferred. The presence of the FZ electrode seems to be desirable when analyzing data offline, but is not statistically significant when analyzing data pseudo-online. This suggests the FZ electrode could be ignored when analyzing data in real time, since the processing is the same as pseudo-online.