A new auditory multi-class brain-computer interface paradigm: spatial hearing as an informative cue.
A new auditory multi-class brain-computer interface paradigm: spatial hearing as an informative cue.
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DOI：
10.1371/journal.pone.0009813
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发表时间：
2010-04-01
期刊：
影响因子：
3.7
通讯作者：
Tangermann M
中科院分区：
文献类型：
--
作者：
Schreuder M;Blankertz B;Tangermann M
大多数基于P300的脑机接口（BCI）方法使用视觉模态进行刺激。对于患有肌萎缩侧索硬化症（ALS）的患者，由于视力下降，这可能不是优选的选择。此外，使用不同于视觉的模态最小化对可能的视觉反馈的干扰。因此，提出了一种使用空间分布的听觉线索的多类BCI范例。10名健康受试者参加了离线oddball任务的空间位置的刺激是一个歧视性的线索。实验是在自由场进行的，每个位置都有一个单独的扬声器。测试了1000 ms、300 ms和175 ms的不同刺激间间隔。通过多次重复的平均值，选择分数在大多数情况下超过90%，即，在超过90%的试验中，选择了正确的位置。一名受试者达到100%正确评分。相应的信息传输速率很高，175 ms条件下的平均得分高达17.39位/分钟（最佳受试者为25.20位/分钟）。当通过单个扬声器呈现刺激时，从而有效地消除了线索的空间特性，大多数受试者的选择分数下降到70%以下。我们的结论是，建议的空间听觉范例是成功的健康受试者，并显示出有前途的结果，可能会导致一个快速的BCI，只依赖于听觉。
Most P300-based brain-computer interface (BCI) approaches use the visual modality for stimulation. For use with patients suffering from amyotrophic lateral sclerosis (ALS) this might not be the preferable choice because of sight deterioration. Moreover, using a modality different from the visual one minimizes interference with possible visual feedback. Therefore, a multi-class BCI paradigm is proposed that uses spatially distributed, auditory cues. Ten healthy subjects participated in an offline oddball task with the spatial location of the stimuli being a discriminating cue. Experiments were done in free field, with an individual speaker for each location. Different inter-stimulus intervals of 1000 ms, 300 ms and 175 ms were tested. With averaging over multiple repetitions, selection scores went over 90% for most conditions, i.e., in over 90% of the trials the correct location was selected. One subject reached a 100% correct score. Corresponding information transfer rates were high, up to an average score of 17.39 bits/minute for the 175 ms condition (best subject 25.20 bits/minute). When presenting the stimuli through a single speaker, thus effectively canceling the spatial properties of the cue, selection scores went down below 70% for most subjects. We conclude that the proposed spatial auditory paradigm is successful for healthy subjects and shows promising results that may lead to a fast BCI that solely relies on the auditory sense.
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DOI：
10.1037/0096-1523.21.2.387
发表时间：
1995-04-01
影响因子：
2.1
作者：
MONDOR, TA;ZATORRE, RJ
通讯作者：
ZATORRE, RJ
影响因子：
1.3
作者：
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影响因子：
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影响因子：
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通讯作者：
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影响因子：
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作者：
Furdea, A.;Halder, S.;Kuebler, A.
通讯作者：
Kuebler, A.