从被淹没在数十微伏的自发脑电背景中单次提取微伏级的视觉诱发电位，是脑-计算机接口的核心问题之一。
One of the key issues in a brain computer interface is to single-trial estimate the visual evoked potentials which embedded in ongoing spontaneous Electroencephalogram(EEG) background.
本论文的主要工作及研究成果有以下几个方面：第一：利用计算机软件编程的方式在计算机监视器上设计了脑机接口视觉刺激器。
The main work and the research results of this thesis contain following the aspects: Firstly, Multiple visual stimulation patterns were produced on the computer screen through programming.
脑机接口是在人脑与计算机或其它电子设备之间建立的直接信息交流和控制通道。
Brain-computer interface is one passage established between human brain and computer or other electronic equipments for direct communication and control.
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