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A high-speed BCI based on code modulation VEP

delete2011-03-24
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PRE
AI
G
Guangyu Bin
高小榕 封面图
高小榕 (Xiaorong Gao) *
Y
Yijun Wang
Y
Yun Li
洪
洪波 (Bo Hong)
高
高上凯 (Shangkai Gao)
DOI:10.1088/1741-2560/8/2/025015delete
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摘要

摘要

En 中文
Recently, electroencephalogram-based brain-computer interfaces (BCIs) have attracted much attention in the fields of neural engineering and rehabilitation due to their noninvasiveness. However, the low communication speed of current BCI systems greatly limits their practical application. In this paper, we present a high-speed BCI based on code modulation of visual evoked potentials (c-VEP). Thirty-two target stimuli were modulated by a time-shifted binary pseudorandom sequence. A multichannel identification method based on canonical correlation analysis (CCA) was used for target identification. The online system achieved an average information transfer rate (ITR) of 108 +/- 12 bits min(-1) on five subjects with a maximum ITR of 123 bits min(-1) for a single subject.
Keyword:
BRAIN-COMPUTER INTERFACES
VISUAL-EVOKED POTENTIALS
COMMUNICATION
CHANNEL

期刊

Journal of Neural Engineering 封面图
Journal of Neural Engineering
IF:
3.8
论文数:
4.0K
被引数:
1.4W

机构

T
tsinghua university
学者数:
11.9W
论文数: 10.0W
被引数: 137
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引用论文

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