Stimulation System for EEG-based Brain-computer Interface

Brain computer Interface(BCI) is a communication system in which messages that a user wishes to convey pass not through the brain's normal output pathways.Stimulation system for BCI is to put some external stimulation to induce certain EEG.In this article a visual stimulation system with a number of stimulating patterns for BCI realized is described,and three stimulation patterns,for VEP,P300,and motor imagery on the computer screen realized is described by computer programming.This system can induce identifiable EEG signals effectively by certain stimulation,and makes use of XML technology so that the system has strong scalability,and meets the needs of BCI experiments.