文献类型：会议论文

英文题名：Concentrate Your Mind by Counting the Flashing Point: a New P300 Pattern in BCI

作者：Zhang, Hanhan[1];Hu, Huiping[1];Zhou, Sijie[1];Wang, Xingyu[1];Jin, Jing[1]

机构：[1]East China Univ Sci & Technol, Minist Educ, Key Lab Adv Control & Optimizat Chem Proc, Shanghai, Peoples R China

会议论文集：6th International Conference on Information Science and Technology (ICIST)

会议日期：MAY 06-08, 2016

会议地点：Dalian, PEOPLES R CHINA

语种：英文

外文关键词：brain-computer interface (BCI); event-related potentials (ERP); P300; concentration

摘要：Brain-computer interface (BCI) can help patients who lost control over most muscles but are still conscious to communicate or interact with the environment. In the offline experiment, all the subjects have to do is counting the target stimulus when they were using the visual-evoked event-related potential (ERP) based BCIs. The recorded electroencephalogram (EEG) data was used to train the classification mode. However, subjects may get distracted in counting the target stimulus when the non-target stimulus affected the subjects or subjects lost their attentions which may negatively affect the task performance. In this study, some green flashing points was added into the stimuli. The subjects have to focus on the target stimulus and count the number of the green points in target stimulus at the same time. In this way, it will make subjects concentrate more on the target to count the green points compared to the pattern without green points. The result showed that the performance of the BCI system could be improved using the method presented in this paper.