Usability of Three Electroencephalogram Headsets for Brain-Computer Interfaces: A Within Subject Comparison
Usability of Three Electroencephalogram Headsets for Brain-Computer Interfaces: A Within Subject Comparison
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三种脑电图耳机用于脑机接口的可用性：受试者内比较
DOI：
10.1093/iwc/iwv023
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
M. Poel
中科院分区：
文献类型：
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作者：
F. Nijboer;Bram van de Laar;Steven Gerritsen;A. Nijholt;M. Poel
目前脑机接口领域越来越关注开发可用的脑机接口（bci），以更好地保证技术的转移和接受。许多研究从整体上调查了BCI应用程序的可用性。在这里，我们的目的是研究基于脑电图（EEG）的脑机接口系统的一个特定组成部分：采集部分。本研究比较了三种不同脑电图耳机在基于p300的脑机接口通信应用中的可用性。13名参与者参加了一项主题内实验。参与者被随机分配了Biosemi、Emotiv EPOC或g.s哈拉耳机。每次会话结束后，计算离线分类准确率（功效），并通过问卷调查测量可用性因素（感知效率和用户满意度）。32通道Biosemi耳机的准确率最高（88.5%），高于8通道g.Sahara（62.7%）和14通道Emotiv（61.7%）。当比较相同的8个通道时，Biosemi和g.Sahara之间的准确性没有差异。Biosemi和g.Sahara被认为比Emotiv更舒适。Emotiv在美学方面被评为最佳。与g.Sahara和Emotiv相比，Biosemi耳机的系统设置时间最长。没有关于效果的信息，参与者更喜欢Emotiv。我们建议使用胶状耳机的应用程序，需要高精度和效率和水基或干燥耳机时，美观，易于设置和乐趣是重要的。
Currently the field of brain–computer interfacing is increasingly focused on developing usable brain–computer interfaces (BCIs) to better ensure technology transfer and acceptance. Many studies have investigated the usability of BCI applications as a whole. Here we aim to investigate one specific component of an electroencephalogram (EEG)-based BCI system: the acquisition component. This study compares on the usability of three different EEG headsets in the context of a P300-based BCI application for communication. Thirteen participants took part in a within-subject experiment. Participants were randomly given a Biosemi, Emotiv EPOC or g.Sahara headset. After every session offline classification accuracy (efficacy) was calculated and usability factors (perceived efficiency and user satisfaction) were measured using questionnaires. The 32-channel Biosemi headset offered the highest accuracy (88.5%) compared with the 8-channel g.Sahara (62.7%) and the 14-channel Emotiv (61.7%). There was no difference in accuracy between the Biosemi and the g.Sahara when comparing the same 8 channels. The Biosemi and g.Sahara were rated as more comfortable than the Emotiv. The Emotiv was rated as best for aesthetics. System setup time was highest for the Biosemi headset when compared with the g.Sahara and the Emotiv. Without information about the effectiveness, participants preferred the Emotiv. We recommend the use of a gelled headset for applications which require high accuracy and efficiency and water-based or dry headsets when aesthetics, easy setup and fun are important.