Electroencephalographic Motor Imagery Brain Connectivity Analysis for BCI: A Review.
Electroencephalographic Motor Imagery Brain Connectivity Analysis for BCI: A Review.
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DOI：
10.1162/neco_a_00838
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发表时间：
2016-06-01
影响因子：
2.9
通讯作者：
Noor, Alias Mohd
中科院分区：
文献类型：
--
作者：
Hamedi, Mahyar;Salleh, Sh-Hussain;Noor, Alias Mohd
近期研究在运动想象脑机接口（MI - BCI）用于不同应用的可行性方面达成了共识，尤其是在中风康复方面。大多数MI - BCI系统依靠单通道的时间、频谱和空间特征来区分不同的运动想象模式。然而，对于完全闭锁综合征患者，尚未建立成功的通信。为了提供更有用和信息丰富的特征，人们建议考虑以脑连接性形式存在的脑电图（EEG）传感器/源信号之间的关系，将其作为神经科学的一种有效工具。在这篇综述中，我们简要报告了传统MI - BCI的挑战和局限性。脑连接性分析，特别是功能性和有效性分析，被描述为提高MI - BCI性能最有前途的方法之一。我们综述了大量基于脑电图的健康受试者运动想象脑连接性分析的文献。随后，我们讨论了在左手、右手、双脚和舌头运动想象运动过程中的脑连接组。此外，还解释了在脑连接性分析中对结果有重大影响的关键成分。最后，我们阐述了可能影响先前研究结果的技术缺陷，并提出了建议。
Recent research has reached a consensus on the feasibility of motor imagery brain-computer interface (MI-BCI) for different applications, especially in stroke rehabilitation. Most MI-BCI systems rely on temporal, spectral, and spatial features of single channels to distinguish different MI patterns. However, no successful communication has been established for a completely locked-in subject. To provide more useful and informative features, it has been recommended to take into account the relationships among electroencephalographic (EEG) sensor/source signals in the form of brain connectivity as an efficient tool of neuroscience. In this review, we briefly report the challenges and limitations of conventional MI-BCIs. Brain connectivity analysis, particularly functional and effective, has been described as one of the most promising approaches for improving MI-BCI performance. An extensive literature on EEG-based MI brain connectivity analysis of healthy subjects is reviewed. We subsequently discuss the brain connectomes during left and right hand, feet, and tongue MI movements. Moreover, key components involved in brain connectivity analysis that considerably affect the results are explained. Finally, possible technical shortcomings that may have influenced the results in previous research are addressed and suggestions are provided.