Effects of an Integrated Neurofeedback System with Dry Electrodes: EEG Acquisition and Cognition Assessment.
Effects of an Integrated Neurofeedback System with Dry Electrodes: EEG Acquisition and Cognition Assessment.
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具有干电极的集成神经反馈系统的效果：脑电图采集和认知评估
DOI：
10.3390/s18103396
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发表时间：
2018-10-11
期刊：
影响因子：
--
通讯作者：
Yan T
中科院分区：
文献类型：
--
作者：
Pei G;Wu J;Chen D;Guo G;Liu S;Hong M;Yan T
脑电图（EEG）神经反馈通过调节大脑活动来改善认知能力和行为，这可以导致健康人的认知增强和患者更好的康复。越来越多地使用脑电神经反馈突出了迫切需要减少不适和准备时间，并增加系统操作的稳定性和简单性。基于脑-机接口技术和多线程设计，我们描述了一个集成设计的神经反馈系统，该系统将可穿戴、多通道、干电极脑电采集设备和认知功能评估结合在一起。然后，我们在健康人的单盲对照实验中评估了该系统的有效性，健康人在神经反馈协议中增加了α频带功率。我们发现，在短期训练（一周内只有五次训练）后，α功率密度的上调改善了工作记忆，而注意力网络的调节可能与其他频带活动有关，如θ和β。我们的集成系统将是一个有效的神经反馈训练和认知功能评估系统，供个人和临床使用。
Electroencephalogram (EEG) neurofeedback improves cognitive capacity and behaviors by regulating brain activity, which can lead to cognitive enhancement in healthy people and better rehabilitation in patients. The increased use of EEG neurofeedback highlights the urgent need to reduce the discomfort and preparation time and increase the stability and simplicity of the system’s operation. Based on brain-computer interface technology and a multithreading design, we describe a neurofeedback system with an integrated design that incorporates wearable, multichannel, dry electrode EEG acquisition equipment and cognitive function assessment. Then, we evaluated the effectiveness of the system in a single-blind control experiment in healthy people, who increased the alpha frequency band power in a neurofeedback protocol. We found that upregulation of the alpha power density improved working memory following short-term training (only five training sessions in a week), while the attention network regulation may be related to other frequency band activities, such as theta and beta. Our integrated system will be an effective neurofeedback training and cognitive function assessment system for personal and clinical use.
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