An EEG-Based BCI System for 2-D Cursor Control by Combining Mu/Beta Rhythm and P300 Potential
An EEG-Based BCI System for 2-D Cursor Control by Combining Mu/Beta Rhythm and P300 Potential
复制标题
基于 EEG 的 BCI 系统，通过结合 Mu/Beta 节奏和 P300 电位进行 2D 光标控制
DOI：
10.1109/tbme.2010.2055564
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发表时间：
2010-10-01
影响因子：
4.6
通讯作者：
Guan, Cuntai
中科院分区：
文献类型：
--
作者：
Li, Yuanqing;Long, Jinyi;Guan, Cuntai
二维光标控制是基于脑电的脑机接口（BCI）中的一个重要且具有挑战性的问题。为了解决这个问题，在这里，我们提出了一种新的方法，通过结合两个大脑信号，包括Mu/Beta节奏在运动想象和P300电位。特别地，设计并集成了运动想象检测机制和P300电位检测机制，使得用户能够使用这两个信号来分别、同时和独立地控制光标在专门设计的图形用户界面中的水平和垂直移动。基于这种方法的实时BCI系统的实现和评估，通过在线实验，涉及六个科目执行2-D控制任务。结果证明了所提出的方法获得两个独立的控制信号的有效性。此外，结果表明，该系统具有的优点相比，现有的系统：它允许光标移动之间的任意位置。
Two-dimensional cursor control is an important and challenging issue in EEG-based brain-computer interfaces (BCIs). To address this issue, here we propose a new approach by combining two brain signals including Mu/Beta rhythm during motor imagery and P300 potential. In particular, a motor imagery detection mechanism and a P300 potential detection mechanism are devised and integrated such that the user is able to use the two signals to control, respectively, simultaneously, and independently, the horizontal and the vertical movements of the cursor in a specially designed graphic user interface. A real-time BCI system based on this approach is implemented and evaluated through an online experiment involving six subjects performing 2-D control tasks. The results attest to the efficacy of obtaining two independent control signals by the proposed approach. Furthermore, the results show that the system has merit compared with prior systems: it allows cursor movement between arbitrary positions.