A novel P300-based brain-computer interface stimulus presentation paradigm: moving beyond rows and columns.
A novel P300-based brain-computer interface stimulus presentation paradigm: moving beyond rows and columns.
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DOI：
10.1016/j.clinph.2010.01.030
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发表时间：
2010-07
期刊：
影响因子：
--
通讯作者：
Sellers EW
中科院分区：
文献类型：
--
作者：
Townsend G;LaPallo BK;Boulay CB;Krusienski DJ;Frye GE;Hauser CK;Schwartz NE;Vaughan TM;Wolpaw JR;Sellers EW
脑电图脑机接口（BCI）可以为肌萎缩侧索硬化症（ALS）或其他神经肌肉疾病患者提供非肌肉交流方式。我们提出了一种新的基于P300的BCI刺激呈现-棋盘范式（CBP）。CBP的性能进行了比较，标准的行/列范例（RCP）介绍。使用8×9矩阵的字母数字字符和键盘命令，18名参与者使用CBP和RCP的平衡方式。利用大约9 - 12分钟的校准数据，我们使用逐步线性判别分析对后续数据进行在线分类。CBP的平均在线准确率为92%，显著高于RCP的77%。校正额外的选择，由于错误，平均比特率也显着更高的CBP，23位/分钟，比RCP，17位/分钟。此外，这两个范例产生显着不同的波形。对三名高级ALS参与者的初步测试产生了类似的结果。此外，这些人更喜欢CBP而不是RCP。这些结果表明，CBP在性能和用户可接受性方面明显上级RCP。CBP有可能提供比RCP更有效的BCI。这对于患有严重神经肌肉残疾的人尤其重要。
An electroencephalographic brain-computer interface (BCI) can provide a non-muscular means of communication for people with amyotrophic lateral sclerosis (ALS) or other neuromuscular disorders. We present a novel P300-based BCI stimulus presentation – the checkerboard paradigm (CBP). CBP performance is compared to that of the standard row/column paradigm (RCP) introduced by. Using an 8×9 matrix of alphanumeric characters and keyboard commands, 18 participants used the CBP and RCP in counter-balanced fashion. With approximately 9 – 12 minutes of calibration data, we used a stepwise linear discriminant analysis for online classification of subsequent data. Mean online accuracy was significantly higher for the CBP, 92%, than for the RCP, 77%. Correcting for extra selections due to errors, mean bit rate was also significantly higher for the CBP, 23 bits/min, than for the RCP, 17 bits/min. Moreover, the two paradigms produced significantly different waveforms. Initial tests with three advanced ALS participants produced similar results. Furthermore, these individuals preferred the CBP to the RCP. These results suggest that the CBP is markedly superior to the RCP in performance and user acceptability. The CBP has the potential to provide a substantially more effective BCI than the RCP. This is especially important for people with severe neuromuscular disabilities.
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DOI：
10.1111/j.1749-6632.2008.04122.x
发表时间：
2009-01-01
期刊：
DISORDERS OF CONSCIOUSNESS
影响因子：
--
作者：
Kuebler, Andrea;Furdea, Adrian;Kotchoubey, Boris
通讯作者：
Kotchoubey, Boris
影响因子：
4.3
作者：
K端bler, A;Neumann, N;Birbaumer, NP
通讯作者：
Birbaumer, NP
影响因子：
3.7
作者：
Furdea, A.;Halder, S.;Kuebler, A.
通讯作者：
Kuebler, A.
影响因子：
64.8
作者：
Hochberg, Leigh R.;Serruya, Mijail D.;Donoghue, John P.
通讯作者：
Donoghue, John P.
使用运动开始视觉反应的 N200-speller
影响因子：
4.7
作者：
Hong, Bo;Guo, Fei;Gao, Shangkai
通讯作者：
Gao, Shangkai