基于P300脑机接口系统实验范式的研究现状

脑机接口系统是一种无需借助周围神经和肌肉便可与外界交流信息、表达使用者想法的通信系统。在过去20多年,P300电位作为脑机接口技术常用的典型脑电成分一直倍受关注,众多研究者为提高脑机接口系统的性能,相继提出了众多基于P300脑机接口系统的实验范式。在总结归纳的基础上,对使用广泛、性能较优越的3种实验范式进行了论述,并比较总结了其性能,同时分析了影响实验范式的物理属性。最终对脑机接口系统实验范式未来的研究方向进行了展望。

Research Status of the Paradigms for the P300-based BCI System

The brain computer interface system is a communication system through which information can be exchanged with the outside world to express ideas without the aid of peripheral nerves and muscles.In the past 20 years,P300 potential has been attracting much attention as a typical potential of the brain computer interface system.Many researchers have proposed different paradigms for the P300 based brain computer interface system to improve the performance of the brain computer interface system.On the basis of summary and induction,three kinds of widely used paradigms with superior performance are discussed in detail,and their performance are compared and summarized.In addition,the physical properties influencing the paradigms are analyzed.Finally,an overview of the trend of future brain computer interface paradigms development is discussed.