Kanoh S, Miyamoto K, Yoshinobu T
Department of Electronics and Intelligent Systems, Tohoku Institute of Technology, Yagiyama-Kasumicho 35-1, Taihaku, Sendai 982-8577, Japan.
Annu Int Conf IEEE Eng Med Biol Soc. 2011;2011:6405-8. doi: 10.1109/IEMBS.2011.6091581.
A P300-based BCI (brain-computer interface) system for controlling the movement of the cursor displayed on the computer screen was proposed and evaluated. On the LCD computer screen, the cursor was displayed with the surrounded eight small circles, each of which was blinked sequentially in a random order. Five healthy subjects were requested to gaze at one of the circles placed in the preferred direction. The P300 activities elicited by the random blink of the target circle were detected by pattern classifier and they were used to move the cursor to the same direction as the target circle. It was shown that all of the subjects could control the movement of the cursor to their preferred direction by moving their gaze point in a short distance. This system can be applied to the voluntary control of the movement of the computer cursor, and the navigation of robot or video camera, without using users' extremities.
提出并评估了一种基于P300的脑机接口（BCI）系统，用于控制计算机屏幕上显示的光标的移动。在液晶计算机屏幕上，光标显示在周围有八个小圆圈的区域，每个小圆圈以随机顺序依次闪烁。要求五名健康受试者注视放置在其偏好方向上的其中一个圆圈。通过模式分类器检测目标圆圈随机闪烁引发的P300活动，并将其用于将光标移动到与目标圆圈相同的方向。结果表明，所有受试者都可以通过在短距离内移动注视点，将光标移动到他们偏好的方向。该系统可应用于计算机光标的自主控制，以及机器人或摄像机的导航，而无需使用用户的四肢。
