摘要
脑机接口(BCI)能将受试者意图相关的大脑活动转化为外部设备控制指令,在神经疾病治疗、运动康复等方面具有较高应用潜力。BCI的实现需从人脑获取有意义的信号,而脑电图(EEG)可以反映神经电活动,主要用于对反映实时性要求较高的BCI系统;近红外光谱(NIRS)主要反映血流动力学水平,一般用于神经生理状态等需要精确定位脑活跃区域的研究。EEG和NIRS因其非侵入、方便穿戴、成本较低等优点,成为BCI的重要信号获取方法。相比于单模态BCI系统,基于EEG-NIRS联合分析的混合BCI系统由于具有更丰富的信号特征,在生理状态检测、运动想象等领域得到了越来越多的关注与研究。该文从EEG-NIRS联合分析在脑机接口中应用的研究现状出发,在数据和特征融合程度、层面上归纳最近的相关领域研究现状,并对EEG-NIRS信号处理手段的研究前景进行了展望。
Brain-Computer Interface(BCI)can convert the brain activity related to the subject's intention into external device control instructions,which have high application potential in treating neurological diseases,motor rehabilitation,and other aspects.Considering that the materialization of BCI needs to obtain meaningful signals from the human brain,ElectroEncephaloGraphy(EEG)and Near-InfRared Spectroscopy(NIRS)has become important signal acquisition methods for BCI because they are non-invasive,convenient to wear,and relatively cheap.EEG reflects neural electrical activity and is widely applied in BCI systems with high real-time response requirements;NIRS mainly reflects the level of hemodynamics and is mainly utilized in research with precise localization of active brain regions,such as identifying neurophysiological status.Compared with the single-mode BCI system,the BCI system based on EEG-NIRS combined analysis has attracted interest and research in physiological state detection,motor imagination,etc.,because of its richer signal characteristics.This review begins with the application of EEG-NIRS combined data analysis in BCI,summarizes the current development on the data and feature fusion level,and looks forward to the research prospects of EEG-NIRS signal processing methods.
作者
张力新
周鸿展
王东
孟佳圆
许敏鹏
明东
ZHANG Lixin;ZHOU Hongzhan;WANG Dong;MENG Jiayuan;XU Minpeng;MING Dong(Academy of Medical Engineering and Translational Medicine,Tianjin University,Tianjin 300072,China;Precision Instruments&Optoelectronics Engineering,Tianjin University,Tianjin 300072,China)
出处
《电子与信息学报》
EI
CAS
CSCD
北大核心
2024年第3期790-797,共8页
Journal of Electronics & Information Technology
基金
国家重点研发计划(2021YFF1200600)
国家自然科学基金(62106173,81925020)
中国博士后科学基金面上项目(2022M712364)。
关键词
信号处理
脑机接口
脑电图
近红外光谱
Signal process
Brain-Computer Interface(BCI)
ElectroEncephaloGraphy(EEG)
Near-InfRared Spectroscopy(NIRS)
