摘要
针对传统脑电型非侵入式脑-机接口判断正确率低、信息传输率低等问题,设计了一种基于SSVEP阻断和P300双特征的混合范式P300-SSVEP-Speller脑-机接口系统.对12位受试者进行了脑电诱发及目标识别实验,结果表明:本范式能够同时诱发出SSVEP阻断特征信号和P300特征信号,采用联合特征的新型的P300-SSVEP-Speller系统比传统的P300-Speller系统具有更高的判断正确率和信息传输率.
To solve the problems that the conventional brain-computer interfaces （BCIs ） transfer the mental intents into the control commands with a low judgment accuracy and unsatisfied information transfer rate （ITR ） ,a novel hybrid BCI called the P300-SSVEP-Speller was developed on the basis of the P300-Speller to combine SSVEP blocking （SSVEPB ） features with P300 potentials .The offline usage of twelve subjects was investigated in the study .Results show that the elicited SSVEPB has little influ-ence on the emergence of the P300 potentials in the degree of temporal signals .In addition ,from the view of character recognition , the novel P300-SSVEP-Speller system has a better performance than the conventional P300-Speller on the judgment accuracy and ITR .
出处
《电子学报》
EI
CAS
CSCD
北大核心
2013年第11期2247-2251,共5页
Acta Electronica Sinica
基金
国家自然科学基金(No.61172008
No.81171423
No.81222021
No.30970875
No.90920015)
国家科技支撑计划(No.2012BAI34B02)
教育部新世纪优秀人才支持计划(No.NCET-10-0618)
关键词
脑-机接口
混合范式
P300
稳态视觉诱发电位阻断
brian-computer interface （BCI）
hybrid
P300
steady-state visual evoked potential blocking （SSVEPB）
