Brain-computer interface (BCI) can establish a direct communications pathway between the human brain and the external devices, which is independent of peripheral nerves and muscles. Compared with invasive BCI, non-invasive BCI has the advantages of low cost, low risk, and ease of operation. In recent years, using non-invasive BCI technology to control devices has gradually evolved into a new type of human-computer interaction manner. Moreover, the control strategy for BCI is an essential component of this manner. First, this study introduced how the brain control techniques were developed and classified. Second, the basic characteristics of direct and shared control strategies were thoroughly explained. And then the benefits and drawbacks of these two strategies were compared and further analyzed. Finally, the development direction and application prospects for non-invasive brain control strategies were suggested.
脑机接口是指不依赖于外周神经和肌肉，在人脑与外部设备之间建立起一条直接的信息交流通路。相较于侵入式脑机接口，非侵入式脑机接口具有低成本、低风险、易操作等优势。近年来，利用非侵入式脑机接口技术对外设进行控制逐渐成为一种新型人机交互方式，而脑机接口控制策略是该方式的重要组成部分。本文首先介绍了脑控策略的分类和发展，其次详细描述了直接和共享两种控制策略的基本特点，再次对比分析这两种脑控策略的优缺点，最后对非侵入式脑控策略发展方向和应用前景进行了分析与展望。.
Keywords: Brain-computer interface; Control strategies; Human-computer interaction; Non-invasive.