A submatrix-based P300 brain-computer interface stimulus presentation paradigm
A submatrix-based P300 brain-computer interface stimulus presentation paradigm
复制标题
基于子矩阵的P300脑机接口刺激呈现范式
DOI:
10.1631/jzus.c1100328
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发表时间:
2012-06
期刊:
影响因子:
--
通讯作者:
Du Feng-lei
中科院分区:
文献类型:
--
作者:
Shi Jin-he;Shen Ji-zhong;Ji Yu;Du Feng-lei
The P300 event-related potential (ERP), with advantages of high stability and no need for initial training, is one of the most commonly used responses in brain-computer interface (BCI) applications. The row/column paradigm (RCP) that flashes an entire column or row of a visual matrix has been used successfully to help patients to spell words. However, RCP remains subject to errors that slow down communication, such as adjacency-distraction and double-flash errors. In this paper, a new visual stimulus presentation paradigm called the submatrix-based paradigm (SBP) is proposed. SBP divides a 6×6 matrix into several submatrices. Each submatrix flashes in single cell paradigm (SCP) mode and separately performs an ensemble averaging method according to the sequences. The parameter of sequence number is used to improve further the accuracy and information transfer rate (ITR). SBP has advantages of flexibility in division of the matrix and better expansion capability, which were confirmed with different divisions of the 6×6 matrix and expansion to a 6×9 matrix. Stimulation results show that SBP is superior to RCP in performance and user acceptability.
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DOI:
10.1109/iembs.2008.4649364
发表时间:
2008-10
期刊:
2008 30th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
影响因子:
--
作者:
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通讯作者:
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DOI:
--
发表时间:
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期刊:
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影响因子:
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DOI:
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发表时间:
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期刊:
2009 ICME International Conference on Complex Medical Engineering
影响因子:
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作者:
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通讯作者:
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影响因子:
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作者:
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通讯作者:
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DOI:
10.1016/j.clinph.2010.01.030
发表时间:
2010-07
期刊:
Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
影响因子:
--
作者:
Townsend G;LaPallo BK;Boulay CB;Krusienski DJ;Frye GE;Hauser CK;Schwartz NE;Vaughan TM;Wolpaw JR;Sellers EW
通讯作者:
Sellers EW