关键词: 脑机接口, 听觉刺激, &ldquo, 是&rdquo, 与&ldquo, 非&rdquo, 反应, 共空间模式

Abstract:

As an emerging technology,brain-computer interface (BCI) bring us a novel communication channel which translate brain activities into command signals for devices like computers,prostheses,and robots.The aim of the BCI research is to improve the quality of life of the patients who are suffering from server neuromuscular diseases.This paper focuses on the analysis of the different characteristics of the brain wave when a subject responses “yes” or “no” to auditory stimulations.Experiment using auditory stimuli by asking questions is adopted.The method of common spatial patterns (CSP) and support vector machine (SVM) are used for feature extraction and classification of brain wave,respectively.The off-line classification accuracy achieves 80.2% in the data records of healthy subjects.The experiment results show the feasibility of communication for neuromuscular injury patients and provide a basis for further research.

Key words: BCI;auditory stimulus;yes and no response;CSP