Аннотация:For successful calibration of a P300 based brain-computer interface the user should not attend non-target stimuli. However, non-target stimuli automatically draw user's attention. To overcome this problem, we propose the use of the single-stimulus paradigm for calibration, at least in fresh users. In this simple paradigm targets are presented in absence of non-targets.
In the current study classiers were trained on recordings made with either the single-stimulus protocol or with the usual P300 BCI protocol in the same participants, and applied online to detect an attended cell in a 3 3 matrix. Similar accuracy was observed for the new and the standard classiers. This result are promising, as the single-stimulus paradigm should be easily understandable even without any previous BCI experience.