Fig. 7
Event-Related Potentials (ERP) averaged across all participants and classes. This figure illustrates the synchronization of brain activity across the 8 EEG channels over time, centered around the onset of the inner speech cue. Notably, the first 200 timesteps (pre-cue period) show a consistent pattern across channels, suggesting a shared preparatory brain response. Following the visual cue, a distinct drop in activity is observed, accompanied by a small positive wave, likely reflecting cognitive processing of the prompt. Despite minor amplitude deviations, particularly in Channel 1, all channels maintain similar trends, supporting the temporal alignment and reliability of the captured ERP signals.
