A SINGLE-SWITCH BCI BASED ON PASSIVE AND IMAGINED MOVEMENTS: TOWARD RESTORING COMMUNICATION IN MINIMALLY CONSCIOUS PATIENTS
A SINGLE-SWITCH BCI BASED ON PASSIVE AND IMAGINED MOVEMENTS: TOWARD RESTORING COMMUNICATION IN MINIMALLY CONSCIOUS PATIENTS
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DOI：
10.1142/s0129065712500372
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发表时间：
2013-04-01
影响因子：
8
通讯作者：
Horki, Petar
中科院分区：
文献类型：
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作者：
Mueller-Putz, Gernot R.;Pokorny, Christoph;Horki, Petar
我们调查是否可以使用脑电图技术与听觉扫描是/否通信。为了被目标群体（即最低意识个体）使用，这样的脑机接口（BCI）必须非常简单和鲁棒。这导致了单开关BCI（ssBCI）的概念。使用ssBCI，可以可靠地检测个人的一种特定的、单独训练的大脑模式，并使用它来控制使用是/否响应的各种应用程序。共有10名健康志愿者（20-27岁）参加了一个初步的基于线索的会议与运动想象（MI）的任务后，轻快的被动脚/手的运动。其中4例患者的MI分类准确度超过70%，因此符合参加第2次会议的入选标准。在第二次会议上，MI被用来沟通是/否回答一系列问题的听觉扫描模式。第二阶段的三名参与者中有两名能够可靠地传达他们的意图，正确率为90%或以上，错误率为0%。这项工作首次展示了基于被动和想象运动的ssBCI在听觉扫描模式下的通信。
We investigate whether an electroencephalography technique could be used for yes/no communication with auditory scanning. To be usable by the target group, i.e. minimally conscious individuals, such a brain-computer interface (BCI) has to be very simple and robust. This leads to the concept of a single-switch BCI (ssBCI). With an ssBCI it is possible to reliably detect one certain, individually trained, brain pattern of the individual, and use it to control all kinds of applications using yes/no responses. A total of 10 healthy volunteers (20-27 years) participated in an initial cue-based session with a motor imagery (MI) task after brisk passive feet/hand movement. Four of them reached MI classification accuracies above 70% and, thus, fulfilled the inclusion criterion for participation in the 2nd session. In the 2nd session, MI was used to communicate yes/no answers to a series of questions in an auditory scanning mode. Two of the three participants of the 2nd session were able to reliably communicate their intent with 90% or above correct and 0% false responses. This work showed, for the 1st time, the use of a ssBCI based on passive and imagined movements for communication in auditory scanning mode.