In recent years with the development of ERP (event-related potential) , especially deepened study on P300, a new way was opened up to solve this problem.

• 近年来随着人们对事件相关电位(event-related potential, ERP)的进一步研究,尤其对P300波研究的逐步深入,为该问题的解决提供了新的途径。