Table 3. Types of event-related potential in EVE-BCI.

Paradigm	Description
P300	The P300 is a positive deflection in voltage of EEG signal with a latency of 300ms after an unexpected stimulus. It is often elicited by the oddball paradigm and occurs on the parietal lobe.
N100	The N100 refers to an immense, negative-going evoked potential that occurs around 100 milliseconds after presenting a stimulus. It can be detected by electroencephalography and distributed mainly at the fronto-central region of the scalp.
N200	The N200 is also an event-related potential measured by EEG. It is a negative-going brain wave that peaks at approximately 200ms after a stimulus’s onset and is recognized at the scalp’s anterior region.
Error-related potential	The error-related potential is elicited by the perception of an error and measured through EEG. It consists of two components: error-related negativity (Ne) and error positivity (Pe). The Ne is a negative potential peaking at 50-100ms post-stimulus. The Pe is a positive potential following the occurrence of Ne. The Pe can be additionally categorized into a frontocentral and a centroparietal component. The frontocentral one arises immediately after the Ne, and the centroparietal one is at peaking around 200–400ms after the error.