An adaptive P300-based control system.

An adaptive P300-based control system.
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基于自适应P300的控制系统。

DOI:
10.1088/1741-2560/8/3/036006
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发表时间:
2011-06
影响因子:
4
通讯作者:
Neuper C
Neuper C
中科院分区:
工程技术2区
文献类型:
--
作者:
Jin J;Allison BZ;Sellers EW;Brunner C;Horki P;Wang X;Neuper C

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使用12 × 7矩阵的自适应P300脑机接口(BCI)探索了提高比特率和准确性的新范例。在在线使用期间,系统自适应地选择要平均的闪烁次数。测试了五种不同的闪光模式。19闪存范例表示典型的行/列表示(即,12列和7行)。9次和14次闪光的A和B范例使用9次或14次闪光(而不是19次)呈现12 × 7矩阵的所有项目三次,减少了呈现刺激的时间。与9-闪光A相比,9-闪光B降低了当目标不闪烁时相邻物品闪烁的可能性,从而减少了来自目标附近物品的干扰。14-闪光A还减少了相邻项目干扰,并且14-闪光B另外消除了相同项目的连续(两次)闪光。结果表明,自适应系统的精度和比特率高于非自适应系统。此外,9-和14-闪存B产生的性能显著高于其各自的A条件。结果还显示了14-flash B范式优于19-flash模式的趋势。
An adaptive P300 brain-computer interface (BCI) using a 12 × 7 matrix explored new paradigms to improve bit rate and accuracy. During online use, the system adaptively selects the number of flashes to average. Five different flash patterns were tested. The 19-flash paradigm represents the typical row/column presentation (i.e., 12 columns and 7 rows). The 9- and 14-flash A & B paradigms present all items of the 12 × 7 matrix three times using either nine or 14 flashes (instead of 19), decreasing the amount of time to present stimuli. Compared to 9-flash A, 9-flash B decreased the likelihood that neighboring items would flash when the target was not flashing, thereby reducing interference from items adjacent to targets. 14-flash A also reduced adjacent item interference and 14-flash B additionally eliminated successive (double) flashes of the same item. Results showed that accuracy and bit rate of the adaptive system were higher than the non-adaptive system. In addition, 9- and 14-flash B produced significantly higher performance than their respective A conditions. The results also show the trend that the 14-flash B paradigm was better than the 19-flash pattern for naïve users.
DOI: 10.1111/j.1469-8986.1979.tb01440.x
发表时间: 1979-01-01
期刊: PSYCHOPHYSIOLOGY
影响因子: 3.7
作者:
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发表时间: 2010-04-01
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期刊: BIOMEDIZINISCHE TECHNIK
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DOI: 10.1109/tnsre.2003.814449
发表时间: 2003-06-01
影响因子: 4.9
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DOI: 10.1111/j.1469-8986.2008.00783.x
发表时间: 2009-05-01
期刊: PSYCHOPHYSIOLOGY
影响因子: 3.7
作者:
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通讯作者: Kuebler, A.