Affective Stimuli for an Auditory P300 Brain-Computer Interface.
Affective Stimuli for an Auditory P300 Brain-Computer Interface.
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DOI：
10.3389/fnins.2017.00522
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发表时间：
2017
影响因子：
4.3
通讯作者：
Kansaku K
中科院分区：
文献类型：
--
作者：
Onishi A;Takano K;Kawase T;Ora H;Kansaku K
不依赖注视的脑机接口（bci）是瘫痪患者潜在的交流工具。本研究使用P300脑机接口来研究情感性听觉刺激的效果。15名健全的参与者用积极和消极的情感声音（PA：猫叫的声音，NA：猫尖叫的声音）操作P300脑机接口。积极和消极情感声音的排列刺激（Permuted - pa, Permuted - na）也被用于比较。收集脑电图数据，比较离线分类准确率。我们使用视觉模拟量表（VAS）来测量参与者的积极和消极情感感受。PA的平均分类准确率为84.7%，permut -PA为67.3%，而PA的VAS评分为58.5，permut -PA为- 12.1。积极情感刺激的准确性和VAS评分显著高于消极情感刺激。相比之下，NA的平均分类准确率为77.3%，排列NA的平均分类准确率为76.0%，而NA的VAS评分为- 50.0，排列NA的VAS评分为- 39.2，差异无统计学意义。我们确定伴随积极情感感受的积极情感刺激显著提高脑机接口的准确性。此外，一名ALS患者的在线分类准确率达到90%。这些结果表明，情感刺激可能有助于为残疾患者准备一个实用的听觉脑机接口系统。
Gaze-independent brain computer interfaces (BCIs) are a potential communication tool for persons with paralysis. This study applies affective auditory stimuli to investigate their effects using a P300 BCI. Fifteen able-bodied participants operated the P300 BCI, with positive and negative affective sounds (PA: a meowing cat sound, NA: a screaming cat sound). Permuted stimuli of the positive and negative affective sounds (permuted-PA, permuted-NA) were also used for comparison. Electroencephalography data was collected, and offline classification accuracies were compared. We used a visual analog scale (VAS) to measure positive and negative affective feelings in the participants. The mean classification accuracies were 84.7% for PA and 67.3% for permuted-PA, while the VAS scores were 58.5 for PA and −12.1 for permuted-PA. The positive affective stimulus showed significantly higher accuracy and VAS scores than the negative affective stimulus. In contrast, mean classification accuracies were 77.3% for NA and 76.0% for permuted-NA, while the VAS scores were −50.0 for NA and −39.2 for permuted NA, which are not significantly different. We determined that a positive affective stimulus with accompanying positive affective feelings significantly improved BCI accuracy. Additionally, an ALS patient achieved 90% online classification accuracy. These results suggest that affective stimuli may be useful for preparing a practical auditory BCI system for patients with disabilities.
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影响因子：
4.3
作者：
Brouwer AM;van Erp JB
通讯作者：
van Erp JB
影响因子：
4.3
作者：
Halder S;Takano K;Ora H;Onishi A;Utsumi K;Kansaku K
通讯作者：
Kansaku K
影响因子：
4.4
作者：
Cedarbaum, JM;Stambler, N;Nakanishi, A
通讯作者：
Nakanishi, A
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：
5.7
作者：
Pfurtscheller, G.;Brunner, C.;da Silva, F. H. Lopes
通讯作者：
da Silva, F. H. Lopes